Went from 205/45/17 on 7" to 235/40/17 on 8" on stock NC Miata. Difference in grip/handling is huge. It's actually scary because it's much harder to tell the car's limits on fast turns (with the wider tires). On the 205's, the car was much quicker (i'd say 10% faster) and more nimble, easy to throw around. And I would be sliding the car at every signal/turn I made....that was fun. Now with the 235's, i can't slide/drift the car when turning anymore, it takes a lot more effort or i have to be going scary fast on the turn. Both tire sizes have their own performance/fun factors. With the 235's, feels like the car is on rails, I go on a roundabout at 60km/hr and the tires don't slip or lose grip at all. On the 205's, same roundabout, I could feel the tires fighting for grip at 45/50km/hr. If you like having grip and turning at fast speeds without losing grip, wider is the way to go.
@@GGGmod1 Maybe not 10% but it's noticeable enough that it's not like 1-2% either. I would say it's between 5-10%. Depends on calibration of your butt dyno too. Some people can't tell difference. I can tell difference in acceleration when my gas tank is empty vs. when it's full. Now my miata isn't stock anymore. I still have 235/40/17 on 8" but I am changing to 215/45/17 on 8". I don't have enough power to go to 9" and 245/40/17 but that grip would be so much fun. For the street, I think 225 or 215 on 8" wheels is plenty enough grip.
@@mrm1712 so if your car does 0-100 in 10 seconds it could go up by 0.5-1 seconds just from the wheels then. I like grippy stuff but truth be told id rather have a fast line acceleration and if that means going down to 205 then i will
@@GGGmod1 not from wheels alone but tire weight and width too. Depends on which wheels and tires too (lightweight or not). More rubber touching road means more resistance. Hard to find perfect balance. Too skinny tires/traction can also cause problems Edit: note that I'm driving a very lightweight Miata. The difference won't be as noticeable on a bigger heavy car
I went from 205/65r15, down to the stock size of 165R15 on my 74 TR6. The 205s were new Falkan Ziex ze960's made the steering heavy at low speed and when driving fast, it felt unpredictable at the limit. Maybe with suspension tuning this could be improved as the body roll is pretty bad with the stock spring rates and sway bar. The 165's are new Verdestein Sprint Classics. The car feels way more manageable and fun. The limit is slower and the break away is way more predictable and progressive. Plus, the the narrow tires on stock, zero offset steel rims just looks right on the car.
@@ZJSProMedia that really depends on wheel and offset if you’ve got crazy offset it’d probably tip over. I run a +57 on my rears they’re 265/40/19 and they fall over if I stand them up
Diminishing performance of the increased weight is always what’s talked about but never angular momentum... If you have two wheel and tire setups that are the exact same weight but one rim is a 15” and the other is a 18” which one do you think takes more power away? ...The 18” wheel does because more of it mass is further from its center of rotation.
Usually the best way to go about things as far as performance on a stock-ish car is just to go with a stickier tire in the stock size. If you can find a bigger wheel and tire combo that weighs less than stock and then fit a stickier tire, bonus points.
Dozens of highly skilled engineers are involved when developing and testing the car, including wheel and tire size. Generally it is set up at best value in combination of performance, fuel efficiency and cost with stock power level and suspension set up. If performance is the only thing you are looking for with stock power level, you are best off finding lightest forged aluminum wheels of same size, along with the best performing tire for your application (considering radials/r-compound/street max, wet/dry etc). If 'but that stance tho' is your thing, then priority of performance isn't as high on your list as you might think. Also wider tire creates more wind resistance, and more susceptible to hydroplaning.
Kotomi P1999, "... best value in combination of performance, fuel efficiency and cost ..." depends on the relative priorities of all the factors you list, along with others like ride comfort, noise, etc. Those same "Dozens of highly skilled engineers" are likely to arrive at a different sized tire and wheel combination given the same list of considerations prioritized in a different sequence, as different car owners might do. If the marketing team for a certain car told the engineers to get the best fuel economy and most comfortable ride at the lowest cost possible, they would specify a different wheel size than if better performance (acceleration, braking, cornering) was higher on the list. For example, with the same 160 hp engine, a 2014 Ford Focus S (15"x6.5") vs. SE (16"x7") vs. SEL (17"x7") vs. Titanium Handling Package (18"x8"), all have different sized wheels and tires, probably chosen by the same engineers. Likewise, one owner might be happier sticking to the original size as you recommend, where another with different priorities would get "better" (for their priorities) results with a different size. I don't know how noticeable any difference in wind resistance is with wider tires (never gave that much thought), but I learned the scary way how right you are about hydroplaning, at least in a lightweight rear drive car (Porsche 914). That seemed to be less of a problem when I switched to front-heavy FWD cars (VW Scirocco, Acura Integra, etc.), but sometimes brief lapses of traction can still be felt without the total disappearance of steering control the RWD car had. And it only gets worse as the tread wears down.
Went from 175 on 13s to 215 on 16s on my 92 Golf 3 back in the day. It had 90PS and didn't really lose that much in fuel economy, most of it was my right foot anyway. It did gain a lot of grip in return and paired with a set of coilovers performance was way better. My brother in law actually loved to drive it since it was way quicker than his 850 wagon despite it having a bigger engine and over 40 more horses. Funny thing was i liked driving his car more xD
I love wide wheels and tires but you do not get hardly any more grip. Tire compound makes way more of a difference. The area of the contact patch is created by the weight of the car. Getting wider tires with stiffer sidewalls and softer compounds seem like best way to go for performance.
It's also important to recognise even if your acceleration goes down with some thiccboiz if you rip it though the twisties even in a shitbox wider tires will make a world of difference.
I've gone from 17s to 18s and an inch wider wheel running contisport contact 4s but same tyre width for a little stretch to make sure I don't rub, did loads of research before buying, the difference is amazing.... road glue!
A lil food for thought, I went from OEM 19" X 8.5" front 19" X 9" rear to 19" X 9.5" front 19" X 10.5 rear with Michelin Pilot Sports on my stock g37s Coupe 6mt. Each wheel weighs about 4lbs less than my OEM set. I've noticed improvements in grip, acceleration, handling & gas mileage.
Went from 225/40 uniroyals to 245/40 ps as 4 for meaty look, also the grip is insane. I don't spin the front wheels anymore when I wanna accelerate fast, obviously if I use 100% it will spin slightly but it's just much grippier. Also it feels more confident and tram like when going on and of ramps even in the wet.
Straight line guys will want as narrow a tyre as they can without overheating - increasing width reduces length, and can reduce contact patch pending height/sidewall stiffness. For straight line acceleration you want as much length as possible vs lateral (cornering) grip wider is more betterer
Dont forget wider setups need bigger or stronger links, tie rods, tougher bushings, etc cause of all the extra forces. I daily a Starlet GT ep82 with a 1" wider than body stance and the alignment keeps going off due to super hard shocks and stock front end setup.
@@Monster33336, personally after getting a wider tire/rim setup, the next step i would proceed with is suspension tuning 😀 Looking for the best ride height, alignment, spring rates/ stiffness (Rebound & Travel) for your car('s) application 👍 I do apologize for the late response. This is just my opinon, my approach maybe right or wrong, best to cross reference through forums and experts 🙏
With fwd cars you shouldn't go wider than stock in most cases, because it just ruins the drivability of the car. A fwd car that has stock 225s is much better of with staying with 225s than going 235s if there is no significant increase in power. Talking from experience and bad driving memories xD
Also in the case of snow (1 to 4 inches) or so on the road, a skinny tire is better. More PSI on the contact patch of the road. Wide tires don't work as well in snow. Wider tires on a light car can decrease the speed needed to hydroplane. I use a dedicated snow tire (skinny with plenty of sidewall) in the winter.
On my last 2 daily’s I went wider on the same aspect ratio and maintained ride, improved acceleration, braking, and handling, but lost gas mileage. Even less mileage at $4.50/gal on my XJ Cherokee, it was worth it.
*Rolling Resistance* It's a performance killer. There are a handful of different videos of guys who run time attack explaining their setups - and how they wound up losing time on wider tires even though they gained lateral grip and were able to corner slightly faster than before.
I have a 1.4L golf tuned for 170hp which isn't much but its super fun. I run 245/40R18 Michelin PS4's, I think I've struck the balance between looks and performance, any wider and it would be too much but at the same time it looks meaty 👌
Some physics: basically the contact patch "usually" has nothing to do with tire width. Your 30 psi (sorry, someone else is gonna have to convert to metric -- it's early here) is divided into your cars weight (call it 3600 lbs to keep the math simple, NOT a Mazda MX5 obviously) and you get a total contact patch of ROUGHLY 120 sq. in. Divide this by the number of tires on your car (I have 4 on mine) for an average of 4 sq. in. (wider tires have a more narrow contact patch front to back, front wheel drive cars have more weight on the front so the front patches are bigger and the rear are smaller). Aerodynamics can reduce this patch at speed (or increase it if you have a really tricky setup -- most don't). Narrower tires handle better in the wet because of the narrower patch "plowing through" water. Things change a bit when you brake or accelerate, but the stiffer sidewalls are the real game changers for most drivers (who don't have the "feel" to manage the changes in contact patch precisely, AKA "trail braking"). So, stiffer side walls: check, looks slick: check, bigger contact patch: not so much (usually).
Guys also reading the comments you also have to remember when upgrading your car make sure that if you are gonna be going for more power it would behoove you to get bigger wheels and tires first so that way after you drop a massive snaily boi under the hood you can still have the grip necessary to make sure you don't mustang into a crowd of people at the car meet. Also if you're trying for a hotboi look wide wheels always look good.
i threw some 295 35 20 bridgestone potenza re070r tires on my stock wheels and oh boi let me tell you grippy is an understatement i could not break traction even in the rain and on the tail of the dragon they let me an almost stock base model challenger absolutely leave a bolt on tuned gti in the dust i was parked for a good 2 minutes before he got to the bottom so granted i also have bc coilovers but just the tires alone changed the whole cornering feel of the car
Went from 18x8 square setup with 225s all the way around the a 265/35 and 18x10.5 in the rear and 18x9 front with 235/40 and was literally a little sad when it was a touch slower however, the handling and road feel is a lot more pronounced. The ride got more harsh but you can feel every ridge and crack in the road which is really good for steering feel and handling so give and take. Also going from stock height to springs soon with an inch drop interested to see how that will work and if it will ride like absolute shit or just sit flush and handle more like a go kart than it already does. 06 BMW 330i.
I have an NA Miata. Of course I dumped the 185 pie cutters and put on some 205x16's and lowered it. Gave it a different look, for sure. Then the engine died and I ...... LS SWAPPED IT! Then, all of a sudden, the 205's were woefully inadequate. I want to remain mostly stock looking but yet get most of the 300 hp to the ground, so I put some stickier and wider 225/45zr15 Hankook Rs4's on some xxr527's. First gear is still the smoky gear as 350 lb/ft of torque, the T56's gearing and the CTS limited slip diff I put in ensures BOTH tires light up with embarrassing ease. Second gear is similar and can smoke 'em by dumping the clutch at 4000 rpm. I have fenders rolled all the way around, but if I wanted to go wider, I would likely have to permanently alter the body and put flares on it and as stated, I want the exterior stealthy and as stock looking as reasonable. I may be incorrect, regardless, I have removed the power steering and as it drives now, I don't have any problem steering at low speeds as I don't turn from a dead stop. Wider tires can make low speed turning an activity that will give ya Popeye arms, LOL! The feel of wider tires and the manual use of a depowered rack is confidence inspiring at higher speeds, for sure!
My cars top trim level wheel and tire was 235/45/17 on 17x7.5. I put 235/45/18 on it with a 18x8. It’s perfect! The car originally came with 225/60/16 on 16x7 wheel.
Thank you for addressing a crucial issue. For the same type of narrow and wide tires (same brand) there is hardly any contact patch increase or decrease, so announcing wider ones have more grip due to larger contact patch is a myth. The difference is the shape of the each tire's contact patch. While narrow one would be more like square, the wider one would be like a rectangular (elongated to the sides). The question is what are these people referring to the improved grip level when they switch to wider tires? I guess it's a misconception and overall lack of testing knowledge to judge situations. In Technik, if you gain something, generally you loose something else, it's a tradeoff.. For an example, by wider tires car gains more cornering capability but loses at braking and launching performance in return.
Hmmm...well, a blanket statement of going bigger means more weight just isn't always true. A case in point, I went from a stock 225/55R19 on a 7" wide rim to a 245/45R20 on an 8.5" wide rim and LOST 12 lbs! Also, when you mention "performance" you tend to leave out handling and focus only on straight line acceleration. Going to a wider tire, all other things being equal, normally improves lateral acceleration in the dry.
I plan to put 16 inch rims on my W201. With this in mind, I also considered picking wider wheels. The factory wheels are 185/65/15, and it feels a bit like a boat sometimes, the steering is quite sensitive on the highway, so I gotta be gentle with it. I've seen some people going for 205/50/16 on their W201. One of my friends says that it'll feel much more stable and grippy. The steering however, might get a bit stiffer. I think I wouldn't mind having a little bit of resistance in the steering, it could compensate for its sensitivity because it feels a little too easy to turn.
My take is, step up the compound first, then consider width if you still need more grip OR you're facing tire heat issues. Narrower tites are lighter and less picky about suspension geometry. A Porsche 914 handles amazing on skinnies, but wide tires reveal that the geometry isn't perfect. If your car is on struts, chances are it'll perform better over a wider range of conditions on OE width tires. If you want to run fatties on a big-camber track alignment, you will take a hit on braking and wet performance in exchange for that turn-in. Narrow tires put more pressure on the contact patch, keeping it square on the road.
Thin wheels are better on wet roads, dirt roads and any slippery conditions other than deep mud and snow. The reason why is the exact opposite reason wider tires are better on regular, dry roads. When you place more weight on a smaller surface area, it’s less likely to slip because the tires are pushing harder through the material that makes it slippery. Obviously mud is a different animal because thin tires will just sink through mud. If the mud is just a small puddle it’s fine, but if it’s really deep mud you’d be better off with mud tires.
Went from 14" 60 175's povo brand tyre's to 17 " 45 225's Bridgestone potenza adrenalin re003's. Fwd Mitsubishi 4g63t hatch back 2100lbs 330bhp Night and day difference as expected , went from tyre frying all the way to 90mph to 0 wheel spin and crazy acceleration.
@KirbysDad Our roads are pretty good , the bumps in the road's are rougher than a normal car that's because I have set up my suspension really stiff in the rear to keep the ass end from squating on launches and hard accelerations and keep the weight over the front tyres where it's needed. I do have boost by gear just for 1st gear but that is still making 260whp and 390nm of torque . Potenza re003's work well at street temperature and that is what they were designed for , you here guy's complaining all the time that they crap on the track and yes they are that's because they are designed for street use with a little bit of fun in some tight curves every once and while.
If you can't break tire, from a dig, you DEFINITELY don't need a wider tire. A wider tire will improve handling, at the cost of high speed stability. The unsprung/rotating weight is a huge factor, especially in lower powered cars. And you are putting more stress on your steering components and suspension. What I was really hoping to hear about, was whether or not reducing rotating/unsprung weight would require different suspension? I am switching from my OEM 19 BMW wheels to BBS RGR's; a weight saving of 7-8 lbs/wheel.
I went from 205/65r15, down to the stock size of 165R15 on my 74 TR6. The 205s were new Falkan Ziex ze960's made the steering heavy at low speed and when driving fast, it felt unpredictable at the limit. Maybe with suspension tuning this could be improved as the body roll is pretty bad with the stock spring rates and sway bar. The 165's are new Verdestein Sprint Classics. The car feels way more manageable and fun. The limit is slower and the break away is way more predictable and progressive. Plus, the the narrow tires on stock, zero offset steel rims just looks right on the car.
Unsprung weight hurts handling, rotational mass hurts acceleration mainly. All unsprung weight is not rotating necessarily, so the non rotating parts have the same impact on acceleration as weight resting on the suspension.
Wider tires and rims are good but it depends on the application. Street or strip and horsepower to weight ratios. Also, how is your car going to track with frame setup and suspension setup. Go look at the 1990 BMW 850 and the F1 cars, The front end is up and the back end is close to the ground. With this configuration the car car handle great on open roads. Especially at high speed driving above 160MPH. Finding the right wideness and overall height that is tricky. If you want more information drop me a line here and I can help you out on it.
225/45R15's are definitely not wide enough to harness all of the hrsprs and trqs of my cammed LS engine. First gear is obviously useless and second gear can broke free the rear end so easily. Even getting rubber to scream hitting third gear is common. I'll try put 235's on it next time, but I may have to pull the front fenders a wee bit for clarence ;)
Surprised didnt mention that biggest disadvantage to wider is the drastic decrease in wet traction due to the amount of space the water has to move to get out from underneath. Wider also causes tramlining which means your car will want to steer in all those grooves in the road a lot easier. Theres a lot more but im not a youtuber, but for a channel called fitment industries i think a little more research is due.
My friend went from 275/40 too a 335/35 18" with the same power band(300hp). He was getting smoked from the line like never before. its not better if you dont have the proper power going to those tires.
So I have a stock drivetrain 12v mk4 vr6 gti... 17x8.5 inch wheels on Velozza ZXV4 205/45Z tires, I have the stock 180 hp and tq, I still roast the tires anytime I launch, and I dont even rev up for launch. I'm thinking I need to get 225 tires
A wider tire without a wider rim will probably also have a negative effect. On track you need a wheel that can support the tire. Example a 245/40R18 on 8 inch well will result in slower times than 225/40R18 on 8 inch wheel.
My 91 sw20 turbo feels so much more planted after putting wider wheels and tires on. Currently running 245s in the rear and 215s up front. Stock it came with 205s on the rear and 195s up front. Massive improvement over stock in every way except gas mileage. Worth it.
I'm buying a 2012 honda civic si, wanted some opinions. Should I get a bit wider rim and tire set up to get the look i want or should I just go with spacers.
My uncle is super cheap and doesn't know anything about cars. Dude used to have a Nissan Pulsar back in the 80s, and he tried running the skinniest tires because they were the cheapest tires he could buy at K-Mart. Didn't work.
Does wider REALLY mean better every time?
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Yep
Nope. I Have a skinnier the grips better then wider ones I had. Depends on the specs. All tires/brands are different so it varies.
Front wheel drive is for losers......just like 6 bangers.
no,shorter wheelbase means better steering,thats why Porsches are amazing race cars
Wider and thicker hips usually brings out extra performance in my wood tip.
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Nailed it
Went from 205/45/17 on 7" to 235/40/17 on 8" on stock NC Miata. Difference in grip/handling is huge. It's actually scary because it's much harder to tell the car's limits on fast turns (with the wider tires). On the 205's, the car was much quicker (i'd say 10% faster) and more nimble, easy to throw around. And I would be sliding the car at every signal/turn I made....that was fun. Now with the 235's, i can't slide/drift the car when turning anymore, it takes a lot more effort or i have to be going scary fast on the turn.
Both tire sizes have their own performance/fun factors. With the 235's, feels like the car is on rails, I go on a roundabout at 60km/hr and the tires don't slip or lose grip at all. On the 205's, same roundabout, I could feel the tires fighting for grip at 45/50km/hr.
If you like having grip and turning at fast speeds without losing grip, wider is the way to go.
so your miata accelerated 10% slower with the 235s over the 205s?
@@GGGmod1 Maybe not 10% but it's noticeable enough that it's not like 1-2% either. I would say it's between 5-10%. Depends on calibration of your butt dyno too. Some people can't tell difference. I can tell difference in acceleration when my gas tank is empty vs. when it's full.
Now my miata isn't stock anymore. I still have 235/40/17 on 8" but I am changing to 215/45/17 on 8". I don't have enough power to go to 9" and 245/40/17 but that grip would be so much fun.
For the street, I think 225 or 215 on 8" wheels is plenty enough grip.
@@mrm1712 so if your car does 0-100 in 10 seconds it could go up by 0.5-1 seconds just from the wheels then. I like grippy stuff but truth be told id rather have a fast line acceleration and if that means going down to 205 then i will
@@GGGmod1 not from wheels alone but tire weight and width too. Depends on which wheels and tires too (lightweight or not). More rubber touching road means more resistance. Hard to find perfect balance. Too skinny tires/traction can also cause problems
Edit: note that I'm driving a very lightweight Miata. The difference won't be as noticeable on a bigger heavy car
I went from 205/65r15, down to the stock size of 165R15 on my 74 TR6.
The 205s were new Falkan Ziex ze960's made the steering heavy at low speed and when driving fast, it felt unpredictable at the limit. Maybe with suspension tuning this could be improved as the body roll is pretty bad with the stock spring rates and sway bar.
The 165's are new Verdestein Sprint Classics. The car feels way more manageable and fun. The limit is slower and the break away is way more predictable and progressive. Plus, the the narrow tires on stock, zero offset steel rims just looks right on the car.
We need a 'So you Want A Prius' for April fools day
Smart car**
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I want a Prius to live in it
"So you want to widebody a prius"
i actually do tho smh efficient as hell or am i missing something?
If I tire can't stand up on its own it's not wide enough
bro a 205 will stand up on its own. XD
@@ZJSProMedia that really depends on wheel and offset if you’ve got crazy offset it’d probably tip over. I run a +57 on my rears they’re 265/40/19 and they fall over if I stand them up
@@thattaffetafg2569 they taking an unmounted tire......
I got 285s
@@ZJSProMedia my fucking 185 60 R14 stands on its own. cause i run Nankang NS2Rs on my Dayli
Diminishing performance of the increased weight is always what’s talked about but never angular momentum...
If you have two wheel and tire setups that are the exact same weight but one rim is a 15” and the other is a 18” which one do you think takes more power away?
...The 18” wheel does because more of it mass is further from its center of rotation.
but is the 15in setup the same circumference as the 18” ? you know how keeping the same size in that regard to keep the speedometer calibrated
@@erickbertoperez862 Ideally it should be the same circumference, but it'll have different weight distribution
Usually the best way to go about things as far as performance on a stock-ish car is just to go with a stickier tire in the stock size. If you can find a bigger wheel and tire combo that weighs less than stock and then fit a stickier tire, bonus points.
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Dozens of highly skilled engineers are involved when developing and testing the car, including wheel and tire size. Generally it is set up at best value in combination of performance, fuel efficiency and cost with stock power level and suspension set up. If performance is the only thing you are looking for with stock power level, you are best off finding lightest forged aluminum wheels of same size, along with the best performing tire for your application (considering radials/r-compound/street max, wet/dry etc). If 'but that stance tho' is your thing, then priority of performance isn't as high on your list as you might think. Also wider tire creates more wind resistance, and more susceptible to hydroplaning.
Kotomi P1999,
"... best value in combination of performance, fuel efficiency and cost ..." depends on the relative priorities of all the factors you list, along with others like ride comfort, noise, etc.
Those same "Dozens of highly skilled engineers" are likely to arrive at a different sized tire and wheel combination given the same list of considerations prioritized in a different sequence, as different car owners might do. If the marketing team for a certain car told the engineers to get the best fuel economy and most comfortable ride at the lowest cost possible, they would specify a different wheel size than if better performance (acceleration, braking, cornering) was higher on the list. For example, with the same 160 hp engine, a 2014 Ford Focus S (15"x6.5") vs. SE (16"x7") vs. SEL (17"x7") vs. Titanium Handling Package (18"x8"), all have different sized wheels and tires, probably chosen by the same engineers.
Likewise, one owner might be happier sticking to the original size as you recommend, where another with different priorities would get "better" (for their priorities) results with a different size.
I don't know how noticeable any difference in wind resistance is with wider tires (never gave that much thought), but I learned the scary way how right you are about hydroplaning, at least in a lightweight rear drive car (Porsche 914). That seemed to be less of a problem when I switched to front-heavy FWD cars (VW Scirocco, Acura Integra, etc.), but sometimes brief lapses of traction can still be felt without the total disappearance of steering control the RWD car had. And it only gets worse as the tread wears down.
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Went from 175 on 13s to 215 on 16s on my 92 Golf 3 back in the day. It had 90PS and didn't really lose that much in fuel economy, most of it was my right foot anyway. It did gain a lot of grip in return and paired with a set of coilovers performance was way better. My brother in law actually loved to drive it since it was way quicker than his 850 wagon despite it having a bigger engine and over 40 more horses. Funny thing was i liked driving his car more xD
I bumped my Hellcat up to a 305. And it made a big difference in grip.
If course because it’s a hellcat
I have a 14 charger rt, moved from 245/45 to 275/40 and made all the difference in the world
Made it slower?? 😂. Jk bro sweet ride.
I went from 235s on my honda to 295
@@fabian-isf5310 Surprised a Honda has enough torque to turn that wheel.
"does wider hurt performance?"
Let me ask my wife......
This could go one of two ways...
Perfect
I love wide wheels and tires but you do not get hardly any more grip. Tire compound makes way more of a difference. The area of the contact patch is created by the weight of the car. Getting wider tires with stiffer sidewalls and softer compounds seem like best way to go for performance.
THIS
Yesss thank you. A lot of oversimplification on this topic.
One of the best investment for my Q50 RS was putting Pilot Pro 4S 275s for extra grip in a staggered setup.
You forgot that wider tires decrease wet traction and increase hydroplaning chances.
I witnessed this first hand😭😭
It's also important to recognise even if your acceleration goes down with some thiccboiz if you rip it though the twisties even in a shitbox wider tires will make a world of difference.
As someone who is trying to build a fun momentum car with honestly pretty low HP and torque numbers, this video was amazingly helpful.
Lol literally just got new tires on a few minutes ago
what size?
Mine are coming tomorrow, Continental extreme contact dws.
@@sypora2069 225/40/18 for my gt86. Any wider and this car loses what little fun factor it has
@@wolf-eat-tiger 245 and 275 staggered on mine. Completely disagree with losing any fun.
@@globalcitizen8314 have those...really good
I just slapped some 18x12 -33 TE37s with 305/35/18 R888Rs on my 350z and I’ve never felt so much grip in my life.
I've gone from 17s to 18s and an inch wider wheel running contisport contact 4s but same tyre width for a little stretch to make sure I don't rub, did loads of research before buying, the difference is amazing.... road glue!
A lil food for thought, I went from OEM 19" X 8.5" front 19" X 9" rear to 19" X 9.5" front 19" X 10.5 rear with Michelin Pilot Sports on my stock g37s Coupe 6mt. Each wheel weighs about 4lbs less than my OEM set. I've noticed improvements in grip, acceleration, handling & gas mileage.
Get a 370z way better
@@Nightboyvq If the 370z had 4 seats, I would've.
You guys really know how to waste half the time of the videos by self promoting or unnecessary ranting.
The friggin wheel slap sound effect at the beginning. Right off the bat, I'm already giggling my arse off 😂
Went from 225/40 uniroyals to 245/40 ps as 4 for meaty look, also the grip is insane. I don't spin the front wheels anymore when I wanna accelerate fast, obviously if I use 100% it will spin slightly but it's just much grippier. Also it feels more confident and tram like when going on and of ramps even in the wet.
I don’t care if it hurts performance I wanna fill both lanes babyyy
Straight line guys will want as narrow a tyre as they can without overheating - increasing width reduces length, and can reduce contact patch pending height/sidewall stiffness. For straight line acceleration you want as much length as possible vs lateral (cornering) grip wider is more betterer
Dont forget wider setups need bigger or stronger links, tie rods, tougher bushings, etc cause of all the extra forces. I daily a Starlet GT ep82 with a 1" wider than body stance and the alignment keeps going off due to super hard shocks and stock front end setup.
What should you replace after getting wider tires?
@@Monster33336, personally after getting a wider tire/rim setup, the next step i would proceed with is suspension tuning 😀
Looking for the best ride height, alignment, spring rates/ stiffness (Rebound & Travel) for your car('s) application 👍
I do apologize for the late response. This is just my opinon, my approach maybe right or wrong, best to cross reference through forums and experts 🙏
Everyone loves a little thickness 😉
A little cushion for the pushin
@@Imulligan1 o shet
To include your mom
With fwd cars you shouldn't go wider than stock in most cases, because it just ruins the drivability of the car. A fwd car that has stock 225s is much better of with staying with 225s than going 235s if there is no significant increase in power. Talking from experience and bad driving memories xD
Love the amount of uploads guys
Also in the case of snow (1 to 4 inches) or so on the road, a skinny tire is better. More PSI on the contact patch of the road. Wide tires don't work as well in snow. Wider tires on a light car can decrease the speed needed to hydroplane. I use a dedicated snow tire (skinny with plenty of sidewall) in the winter.
On my last 2 daily’s I went wider on the same aspect ratio and maintained ride, improved acceleration, braking, and handling, but lost gas mileage. Even less mileage at $4.50/gal on my XJ Cherokee, it was worth it.
Awesome video... just would like to add rolling resistance, they can actually slow you down if you have to big of tire in the front.
*Rolling Resistance*
It's a performance killer.
There are a handful of different videos of guys who run time attack explaining their setups - and how they wound up losing time on wider tires even though they gained lateral grip and were able to corner slightly faster than before.
I have a 1.4L golf tuned for 170hp which isn't much but its super fun. I run 245/40R18 Michelin PS4's, I think I've struck the balance between looks and performance, any wider and it would be too much but at the same time it looks meaty 👌
Some physics: basically the contact patch "usually" has nothing to do with tire width. Your 30 psi (sorry, someone else is gonna have to convert to metric -- it's early here) is divided into your cars weight (call it 3600 lbs to keep the math simple, NOT a Mazda MX5 obviously) and you get a total contact patch of ROUGHLY 120 sq. in. Divide this by the number of tires on your car (I have 4 on mine) for an average of 4 sq. in. (wider tires have a more narrow contact patch front to back, front wheel drive cars have more weight on the front so the front patches are bigger and the rear are smaller). Aerodynamics can reduce this patch at speed (or increase it if you have a really tricky setup -- most don't). Narrower tires handle better in the wet because of the narrower patch "plowing through" water. Things change a bit when you brake or accelerate, but the stiffer sidewalls are the real game changers for most drivers (who don't have the "feel" to manage the changes in contact patch precisely, AKA "trail braking"). So, stiffer side walls: check, looks slick: check, bigger contact patch: not so much (usually).
Guys also reading the comments you also have to remember when upgrading your car make sure that if you are gonna be going for more power it would behoove you to get bigger wheels and tires first so that way after you drop a massive snaily boi under the hood you can still have the grip necessary to make sure you don't mustang into a crowd of people at the car meet. Also if you're trying for a hotboi look wide wheels always look good.
“So you want a vip Lexus?”
i threw some 295 35 20 bridgestone potenza re070r tires on my stock wheels and oh boi let me tell you grippy is an understatement i could not break traction even in the rain and on the tail of the dragon they let me an almost stock base model challenger absolutely leave a bolt on tuned gti in the dust i was parked for a good 2 minutes before he got to the bottom so granted i also have bc coilovers but just the tires alone changed the whole cornering feel of the car
Wider looks better 🤷♂️
“Cause race car bro”
Went from 18x8 square setup with 225s all the way around the a 265/35 and 18x10.5 in the rear and 18x9 front with 235/40 and was literally a little sad when it was a touch slower however, the handling and road feel is a lot more pronounced. The ride got more harsh but you can feel every ridge and crack in the road which is really good for steering feel and handling so give and take. Also going from stock height to springs soon with an inch drop interested to see how that will work and if it will ride like absolute shit or just sit flush and handle more like a go kart than it already does. 06 BMW 330i.
Hahaha the stomach wheel slap was hilarious.
Also depends what you're doing, a bit narrower may be easier to keep some heat in it or a bit wider if you need it cooler
Got a 8th gen SI civic. I'm running 18x9.5 +35 255/35/18 and I love it. I need new koing hypergrams for the front because of a wreck.
When you’re too wide, she complains and wants you to slow down🥺😭
Something you have never heard.
I have an NA Miata. Of course I dumped the 185 pie cutters and put on some 205x16's and lowered it. Gave it a different look, for sure. Then the engine died and I ...... LS SWAPPED IT! Then, all of a sudden, the 205's were woefully inadequate. I want to remain mostly stock looking but yet get most of the 300 hp to the ground, so I put some stickier and wider 225/45zr15 Hankook Rs4's on some xxr527's. First gear is still the smoky gear as 350 lb/ft of torque, the T56's gearing and the CTS limited slip diff I put in ensures BOTH tires light up with embarrassing ease. Second gear is similar and can smoke 'em by dumping the clutch at 4000 rpm. I have fenders rolled all the way around, but if I wanted to go wider, I would likely have to permanently alter the body and put flares on it and as stated, I want the exterior stealthy and as stock looking as reasonable. I may be incorrect, regardless, I have removed the power steering and as it drives now, I don't have any problem steering at low speeds as I don't turn from a dead stop. Wider tires can make low speed turning an activity that will give ya Popeye arms, LOL! The feel of wider tires and the manual use of a depowered rack is confidence inspiring at higher speeds, for sure!
My cars top trim level wheel and tire was 235/45/17 on 17x7.5. I put 235/45/18 on it with a 18x8. It’s perfect! The car originally came with 225/60/16 on 16x7 wheel.
I always dig your videos, they're entertaining but to the point. Keep up the good work team FI!
“So you want a 2nd gen Lexus IS”
I’m running ds02 18x9.5 front 215/35/18and 19x10.5 225/35/18 +22 offset and I really enjoy that set up and looking really good
Next should be "so you want a 2nd gen Lexus is350"
Buy it
These guys make a wheely good point...
Thank you for addressing a crucial issue.
For the same type of narrow and wide tires (same brand) there is hardly any contact patch increase or decrease, so announcing wider ones have more grip due to larger contact patch is a myth.
The difference is the shape of the each tire's contact patch. While narrow one would be more like square, the wider one would be like a rectangular (elongated to the sides).
The question is what are these people referring to the improved grip level when they switch to wider tires?
I guess it's a misconception and overall lack of testing knowledge to judge situations.
In Technik, if you gain something, generally you loose something else, it's a tradeoff..
For an example, by wider tires car gains more cornering capability but loses at braking and launching performance in return.
Fuel efficiency? What the heck is that? Never heard of it.
NOW it's called $5 a gallon for gas....
Hmmm...well, a blanket statement of going bigger means more weight just isn't always true. A case in point, I went from a stock 225/55R19 on a 7" wide rim to a 245/45R20 on an 8.5" wide rim and LOST 12 lbs! Also, when you mention "performance" you tend to leave out handling and focus only on straight line acceleration. Going to a wider tire, all other things being equal, normally improves lateral acceleration in the dry.
I plan to put 16 inch rims on my W201. With this in mind, I also considered picking wider wheels. The factory wheels are 185/65/15, and it feels a bit like a boat sometimes, the steering is quite sensitive on the highway, so I gotta be gentle with it. I've seen some people going for 205/50/16 on their W201. One of my friends says that it'll feel much more stable and grippy. The steering however, might get a bit stiffer. I think I wouldn't mind having a little bit of resistance in the steering, it could compensate for its sensitivity because it feels a little too easy to turn.
My take is, step up the compound first, then consider width if you still need more grip OR you're facing tire heat issues. Narrower tites are lighter and less picky about suspension geometry. A Porsche 914 handles amazing on skinnies, but wide tires reveal that the geometry isn't perfect. If your car is on struts, chances are it'll perform better over a wider range of conditions on OE width tires. If you want to run fatties on a big-camber track alignment, you will take a hit on braking and wet performance in exchange for that turn-in. Narrow tires put more pressure on the contact patch, keeping it square on the road.
Thin wheels are better on wet roads, dirt roads and any slippery conditions other than deep mud and snow.
The reason why is the exact opposite reason wider tires are better on regular, dry roads. When you place more weight on a smaller surface area, it’s less likely to slip because the tires are pushing harder through the material that makes it slippery.
Obviously mud is a different animal because thin tires will just sink through mud. If the mud is just a small puddle it’s fine, but if it’s really deep mud you’d be better off with mud tires.
My cars tyres already went from 175 to 185 before i bought it🤔
But I'm going to buy 195 wide tyres for that extra grip 😈🔥
Just a couple extra cons to add to wider tires
-hydroplaning
-tram lining
- inability to get up to proper temps in certain weather
New video on my birthday, thank you.
Happy bday after two years😳
Went from 14" 60 175's povo brand tyre's to 17 " 45 225's Bridgestone potenza adrenalin re003's.
Fwd Mitsubishi 4g63t hatch back 2100lbs 330bhp
Night and day difference as expected , went from tyre frying all the way to 90mph to 0 wheel spin and crazy acceleration.
How did it affect the ride, like going over potholes?
@KirbysDad Our roads are pretty good , the bumps in the road's are rougher than a normal car that's because I have set up my suspension really stiff in the rear to keep the ass end from squating on launches and hard accelerations and keep the weight over the front tyres where it's needed.
I do have boost by gear just for 1st gear but that is still making 260whp and 390nm of torque .
Potenza re003's work well at street temperature and that is what they were designed for , you here guy's complaining all the time that they crap on the track and yes they are that's because they are designed for street use with a little bit of fun in some tight curves every once and while.
If you can't break tire, from a dig, you DEFINITELY don't need a wider tire. A wider tire will improve handling, at the cost of high speed stability. The unsprung/rotating weight is a huge factor, especially in lower powered cars. And you are putting more stress on your steering components and suspension. What I was really hoping to hear about, was whether or not reducing rotating/unsprung weight would require different suspension? I am switching from my OEM 19 BMW wheels to BBS RGR's; a weight saving of 7-8 lbs/wheel.
I just went one step up too. 1" bigger wheelsl and went from 215 to 225 tires
I went from 205/65r15, down to the stock size of 165R15 on my 74 TR6.
The 205s were new Falkan Ziex ze960's made the steering heavy at low speed and when driving fast, it felt unpredictable at the limit. Maybe with suspension tuning this could be improved as the body roll is pretty bad with the stock spring rates and sway bar.
The 165's are new Verdestein Sprint Classics. The car feels way more manageable and fun. The limit is slower and the break away is way more predictable and progressive. Plus, the the narrow tires on stock, zero offset steel rims just looks right on the car.
It does, I made the mistake to put 275/45/20 on my 4cylinder turbo Camaro and that just added more ego to the turbo lack of it😓😅
Also: fender rolling (if needed) and tramlining.
Unsprung weight hurts handling, rotational mass hurts acceleration mainly. All unsprung weight is not rotating necessarily, so the non rotating parts have the same impact on acceleration as weight resting on the suspension.
Wider tires and rims are good but it depends on the application. Street or strip and horsepower to weight ratios. Also, how is your car going to track with frame setup and suspension setup. Go look at the 1990 BMW 850 and the F1 cars, The front end is up and the back end is close to the ground. With this configuration the car car handle great on open roads. Especially at high speed driving above 160MPH. Finding the right wideness and overall height that is tricky. If you want more information drop me a line here and I can help you out on it.
I put 9 inch wheels on my gti and if I'm on a uneven road it grips the road and pulls in whatever direction it wants lol
Fuel ⛽ efficiency 😂 @6:57
225/45R15's are definitely not wide enough to harness all of the hrsprs and trqs of my cammed LS engine. First gear is obviously useless and second gear can broke free the rear end so easily. Even getting rubber to scream hitting third gear is common. I'll try put 235's on it next time, but I may have to pull the front fenders a wee bit for clarence ;)
235 is still really narrow and you won't really notice a difference between 225 and 235 unless you decrease profile
I went from 175/60/14 to 225/45/17 the day after I got my car 😅😂
i just fitted 265 30 19's all around my bmw E91 it looks awesome
Add it up to the gallery and show us homie! 🙌🏽 -Edgar
www.fitmentindustries.com/add-wheel-offset
Alil yess it does 275s Slows you down dramatically
Surprised didnt mention that biggest disadvantage to wider is the drastic decrease in wet traction due to the amount of space the water has to move to get out from underneath. Wider also causes tramlining which means your car will want to steer in all those grooves in the road a lot easier. Theres a lot more but im not a youtuber, but for a channel called fitment industries i think a little more research is due.
"The wider, the better"
My friend went from 275/40 too a 335/35 18" with the same power band(300hp). He was getting smoked from the line like never before. its not better if you dont have the proper power going to those tires.
@@jairoguerra5149 I hear you man. Bottom line : Dial in the perfect size to match your requirements
@@shaun0162 agreed too the max!
Went from a 225 to a 265 after I upgraded my turbo and it was definitely a necessity. With 225s I spun going into third gear
You have a rwd ? Which car
I have all season random 215s on all 4 corners and I CAN'T WAIT to finally put on my summer Nitto g2 race tires on :)))
So I have a stock drivetrain 12v mk4 vr6 gti... 17x8.5 inch wheels on Velozza ZXV4 205/45Z tires, I have the stock 180 hp and tq, I still roast the tires anytime I launch, and I dont even rev up for launch. I'm thinking I need to get 225 tires
A wider tire without a wider rim will probably also have a negative effect. On track you need a wheel that can support the tire. Example a 245/40R18 on 8 inch well will result in slower times than 225/40R18 on 8 inch wheel.
V1 nismos w/ indy 500’s on my Q for daily and forgestars with mickeys for racing 🤌🏽
355x 16”’hooked and booked on my 87 gn. 245s on my r/t charger stock just spins.
i learn more from these videos than i have in my 4 years of high school ❤️
Yes but you gotta do your alignment make sure your not too wide for the wheel
If you use wheel that have lower offset, but still using the stock tyre width, does it increases the performance and improve cornering?
maybe 1%
My 91 sw20 turbo feels so much more planted after putting wider wheels and tires on. Currently running 245s in the rear and 215s up front. Stock it came with 205s on the rear and 195s up front.
Massive improvement over stock in every way except gas mileage. Worth it.
I'm buying a 2012 honda civic si, wanted some opinions. Should I get a bit wider rim and tire set up to get the look i want or should I just go with spacers.
This vid just made my decision for me. Thank you 😁
That RX7 ditched those wheels on a fly😂😂
Just put the wider tire on drive wheels an really skiny wheels as opposed
Thank youuuu for teaching these kids
Got smaller thread than stock but 2" more width
i made the mistake of putting 255's on my miata, it felt so much slower.
I guess now i have to LS swap it
Send er bud
i’m throwing some wheels and tires on my civic from fitment industries i’m going from 18x8 by 235s to 18x9.5 by 255s hopefully going to turn out okay
245 on a k bolt on civic was perfect
The B roll in these videos is second to none
My uncle is super cheap and doesn't know anything about cars.
Dude used to have a Nissan Pulsar back in the 80s, and he tried running the skinniest tires because they were the cheapest tires he could buy at K-Mart. Didn't work.
Welp thats that, im putting spacers and stretched tires on my 7.5s