Why Does Cold Fuel Make More Power? | Engine Masters
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- Опубліковано 25 сер 2023
- This time on Engine Masters, Freiburger, Dulcich, and Brule try to answer three main questions: Why does colder fuel make more power? How can you consistently keep fuel temps down, and what difference will it really make?
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How do you keep your fuel cool?
Instead of running fuel through a radiator, coil line through an ice can. Modify a catch can if that's what you have. It, also, works for trans lines, but they would be in car so you would need to shield it on case of a blowout
Why couldn't you use the coil idea but wrap it around the A/C coil.
I used to keep my bike in my house. On warm summer days, when I would start my ride, my tank was cold. It was a noticeable difference when everything got warmer. Also sometimes when getting gas, I could feel the cooler temp and I knew I was gonna have a touch more power. Been waiting for actual hard results for a long time. My buddies used to think I was crazy.
Drivers were adding "cool cans" to cars back in the 60's. They would use a coffee can and coiled copper tubing. Fill the can with crushed ice!
Good point!
We used cool cans for fuel, Trans lines, and brakes. Much of this was for derby, and some, also, for drag racing.
The brakes were only for derby, because they would be moot for any other applications. The Trans was a 5G bucket full of ice. It worked.
100 % think it would make more power on a hot day. Dyno test would be cool to see and maybe a room with 100° temps temps ambient on a chassis dyno.
Trans coolers are very useful for exactly this type of thing. Handy for heating and cooling almost any gas or liquid.
@@aldo6192 in quite a few modern day vehicles, the trans cooler is built into the engine radiator, with coolant being exchanged as the medium to regulate temperature. Helps bring trans temp up to operating in cold climates, and obviously in situations in which trans temp exceeds coolant temp, it removes some heat.
My 1993 Mercedes 400E had a fuel cooler incorporated into the low side A/C line.
You Guys Should Do An Episode Of The Advantages And Disadvantages Of Direct Fuel Injection And Super Coil Ignition
If it makes 10 hp it may be worth adding an evaporator type cooler to cool the fuel that runs off an ac compressor. Something like on the electric cars even. Not engine driven, and is basically a cooling block. They use it to cool the battery coolant.
Jaguar XJ6 and others cooled fuel off of the AC
🤔 get some soft aluminum fuel line and coil it around your low side ac line then insulate it there and to the fuel rails or carb
it wouldn't be a big hassle
Old school Moroso Cool Can filled with dry ice for the win. Hottest summer days the car ran the top end the way it would early spring and late fall.
Great stuff.. but I think the actual process is a bit different. The fuel actually absorbs heat from the air when it is mixed at the carb. The colder the fuel, the more heat it can absorb in that short trip from carb to cylinder. Colder air is denser so you get more in the cylinders and that is what actually makes more power.
i would agree because fuel has to vaporize to burn so getting heat from the air would would not only help it burn but more air is the key just like a turbo does, i did the opposite though many years ago, i had a gas preheater just before my carb and the engine ran soooooooooo much better once the fuel was heated especially in the winter time, gas has to vaporize to burn and more air helps and that is why chevy tried having a heated carb base in one of their cars, toooooo many variables to produce horsepower in engines but heating the gas helped my engine big time.
Agree , It would be interesting to see that difference using fuel injection rather than a carb that supports the denser air charge , cheers
With the ice cooler, add salt water. The salt will actually help make the cooler coils get colder. Also. You could do this test with liquid nitrogen, which boils at negative 320 defs F
Most Gas blends freezes almost solid starting around 145F, with the range being -40F to -200F. So hitting it with LN for as long as they needed to do the test would more than likely freeze the line.
AC coolant chiller from an EV used to chill the fuel would be cool. If you already had AC on the vehicle it could help keep the HP high.
Back in 1982 my friend and I were building his 1970 454 Chevelle in high school. It gets hot in eastern NC in the summer and the carb would starve after the second or third run street racing. We got a Moroso "cooler can" I think it was called. Basically a coffee can that you ran fuel line through and filled with ice. It worked.
I used one of those on my 76 Camaro 350. I only bothered actually using it at the track and packed it with ice between every run. It had a little drain valve on the bottom to remove the water too. Sadly, I never actually tracked how it affected my numbers in the eighth mile run but the engine did seem to make better time at a slightly higher shift point allowing me to shift a bit latter than without ice.
ive been cooling my fuel for a while now i did it to quieten my fuel pumps in my tank worked really well it also help with spark knock
Interesting evaluation here. Since I have an LS3 with stock rails that are metal, they get hot, same goes for my LT1 GEN II when I road raced that car. They got super hot because they were thick and bolted directly to the intake manifold. All of the aftermarket rails are aluminum too so they heat soak easily but also dissipate heat fast as well. Wondering if cooler fuel would actually keep the fuel rails cooler when the engine is working hard and if there is a benefit to that.
Would be cool to see nitrous purges aimed at your fuel lines for street racers
i always thought it was a waste when guys shot it out cowl
why not blast the exterior of your intake manifold or yes fuel lines
@@johnj2496 because unless your intake is completely sealed off and not drawing from under the hood you may be inadvertently drawing some of the cloud of nitrous into your carb.
Back in the 80s when I had a cool can under the hood... I would use that thick rubber insulation around the fuel line all the way up to the carburetor... The type you see on home air conditioner
Best content, hands down!
The trans cooler idea is genius in my opinion. Now I wonder the reliability of it on a road car or if it will last under multiple runs at the track. But I definitely think it's worth testing for longevity.
Alot pd and common rail disesls have fuel cooler as standard. Not as dangerous as petrol granted but never heard one fail except when mounted under the car and hit
I’ve got one on my racecar and haven’t had an issue in many years! Did it because we were getting fuel boil and it rectified it straight away!
I've seen this very thing done on dump trucks. Seems like a waste on those but whatever
Well in Florida I'd say it's necessary for anyone that wants to build a daily that can be raced at the track. My JEEP GC has a positive pressure system, I doubt it's high enough to make it leak so I'm gonna give this idea a try and see how it goes.
Had to do that with a fast ez- efi setup. Fuel tank would get so hot you couldn't touch it. Didn't think about the power but I'll take the secondary benefits.
The knowledge in that room can not be matched. You cant help but learn something. I love this show.
I have made a fuel cooler on my jet ski spraying water from the pump through oil cooler that that was sealed in a box, then the outlet fed a cooper tube that was wrapped around the supercharger (tvs1320) which exited the hull...alot of work but it does go a consistent 2.5 mph . Speed on jetskis is expensive and this was quite cheap but took many attempts to be done cleanly .
Just looking at the metal fuel cell in the bed of my Chevy luv. Cant imagine how hot that makes the fuel out here in Cali.
It would be great to know how colder fuel affects basic MPI fuel injection. I'm thinking not as much due to the pressure drop from 50ish PSI to the vacuum of the intake.
can you do the same test but on EFI and pressurized fuel rails?
Now that is a good idea. Cheers
probably to some temp it has sense but if fuel is too cool it will not have time to evaporate (cold start), it is better to cool down intake air
Old Mercedes C36 AMG has a fuel cooler mounted in enginebay.
Cooled by the Aircon pump.
My dad did the old school version of the cool can/ice can back when he used to drag race at the strip on the weekends, back in the early to mid 60's. They used to just use a coffee can or a paint can, mounted somewhere in the engine bay. They would run the fuel line from the gas tank to the can and use aluminum or copper tubing in the coil configuration inside the can, then route the rubber hose line from the can to the carburetor making sure that the line didn't get near the hottest parts of the engine. When it was time to make a run, they would fill the can with ice, put the lid back on it and make the run. It was never meant to be filled all the time, just for runs at the track. However, nothing says you can't put ice in it before a longer race. Today, I would use a mix of crushed ice cubes and dry ice. The ice can getup that was showed in the episode, is just the modern version of the hot rodders version. It's always been about two primary things, get the coolest air and coolest fuel you can going into the carb. I like the idea of the transmission cooler being used for fuel, but that whole thing has to be rock solid or yeah fuel everywhere.
One thing that these guys dont seem to take into account is not everyone will have room for a transmission cooler like that with an electric fan. most of us would only be able to run one of those radiant heat exchangers with the fins that are either a single or double pass.
I am personally running a 4150 stealth Sniper EFI system for my daily driver rig that I am putting the finishing touches on the engine. I am thinking about chilling the fuel mainly because its no different than a carb as the fuel is flowing through the intake manifold no different, its not like a port injection EFI system that sprays the fuel directly onto the intake valve. So chilling the fuel would have a benefit for me but on my truck I cant put a fan like they are running, the only thing I can do is use a single pass aluminum fin heat exchanger and now comes the big question, how efficient will that be mounted on the frame rail after my 99-04 Corvette fuel filter/regulator assembly but some 9 feet of 3/8 stainless steel line and 3/8" rubber fuel hose till the fuel hits the injectors.
Not something I want to do trial and error on seeing as I have a brand new 3/8 stainless steel hardline for the frame to replace my oe 5/16" carb line with so if I mount a inline cooler thats it I have to run it cause it would require me buying another hardline to remove it and go without.
For a track vehicle I think a cool can would be the best cause with an electric fan all you are doing is putting more load on the engine by having the alternator run that cooling fan which will eat up more power.
I've seen many drag&drive cars running a trans cooler on the fuel return line, not for power but because their fuel gets SO hot that it vapor locks the pumps. That's generally why you see double & triple pumps that aren't staged die quickly on the road.
When the weather starts getting cool outside between 60 and 50 my GY6 150 runs a lot better more power from the cool air I assume because the air is denser when it's cool and it's actually getting more
You guys should build a car version of this using the AC refrigerant and a plate style cooler (evaporator). There should be bypass to the cooler so that the fuel is not too cold when the engine is cold or you are operating at very low loads. I think the gains would be highest for a fuel injected turbocharged/ supercharged engine, medium gains for a high CR NA fuel injected engine and the lowest gains for for low CR carburetor engine.
I don't know if I missed an episode? But I've always been curious about engine oil coolers? Good bad or indifferent? And with that is there a change in oil velocity that should be considered? And if you did run an oil cooler for your oil is there a formula?
David: In the old days, the fuel line would be plumbed under the alternator and next to the engine block up to the carburetor (SBC). Hence, a simulation of vapor lock. If any of this adds incite to your pursuit to heat the fuel, try that!
That's also why nitrous is such a beautiful addition! Its the gift that keeps on giving 👍👍👍
The old Studebakers has spot where you can put dry ice to cool the fuel
How did temp effect A/F ratio?
Run the test w fuel injection.
Put an Air Conditioning evap coil on the air intake.
I would argue in turbo applications this could be really nice.
Use the pot style and use dry ice and denatured alcohol!
I’ve been running that exact fluid cooler on the return line of my street car for a while now. Before installing it as the fuel would heat up the fuel pressure would drop…. With the cooler fuel pressure never drops no matter how long I’m driving the car.
Guys have been using a Transmission cooler to cool Gas on Drag Week Vehicles for Years.
Hope you do the next vid to see if the engine can take more timing with colder fuels..
I love those videos, very educational. I do have one question tho, I have a 2018 Ram 2500 6.4L v8. It’s lifters are knocking really loud. What should I check?
How about your oil level/quantity?
Could try using thermal couplers to cool the fuel
"Science!"
-Thomas Dolby
p.s. Really digging the hair. Please do keep it up. I mean, pick a terminal point, we don't need no Crystal Gale stuff, but, rock on, brothers!
Please make some videos about grill sizing, no grill for the radiator, even running just water or types of coolants
Id be interested in seeing how much timing you can add with the cooler fuels due to the cooler combustion charge, probably where the biggest gains would be, especially on a turbo application. Fuel cooler instead of intercooler??
Both would be ideal, no?
Why not both? Or fuel cooler and meth injection? But why not all three?
A lot of diesel vehicles come with fuel coolers from the factory
That usually is in the return line and has to do with the injection pump or high pressure pump being diesel-cooled . Running high loads in high temps on an almost empty tank could otherwise heat the diesel to much deminishing it's lubrication and cooling capabilities.
But still I'm thinking if it might make more power 🤔. It's definitely going to be denser = more fuel into the cylinder but also might have problems atomizing
Yup, particularly on the higher load models. Typically on return line to keep tank temperature down.
I thought Diesel fuel had to be heated in order to combust under compression?
@@ChronoTangopressure does all that
@@ChronoTangothe combustion chamber is hot enough, especially under the high compression ratios on diesel engines. When starting a diesel engine cold the glowplugs taken care of the heating.
On old diesel engines you can actually notice the engine gaining power as it comes up to temperature on a cold start in winter.
What if instead of cooling you just added a tiny shot of nitrous into the fuel system. Would that cool anything? Just a thought. Cool video
I believe there's a trade-off in there yes cold is good but Smokey made the hot vapor motor for a reason and it worked and I believe that fuel was like 400 and some degrees going into the engine I believe that pre-heating to do the same thing just like the hot Vapor motor
Hey MT, look at videos and resources for cooling CPUs in modern day gaming computers. Tons of valuable information that I imagine could be applied. Biggest reliable idea is more surface area and grab airflow
Wonder if the ultra cold fuel in the bowls works to lower the temperature of the main body of the carb as well? Possibly cooling incoming air as well.
So would you install this on the return or feed side?
My grandpa told me a story about his 60s chevy that had some sort of dry ice cooler for his fuel system he said they would try all sorts to get it to freeze
Does this mod matter with regard to return or returnless systems? ie Hellcat boosted 6.2L running E85 is returnless.
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when i had my subaru, i i was making about 600 wheel and running my pump at 100% duty cycle, and i was considering running a fuel cooler for a long time because i was concerned with my fuel temps
So much for Smokey Yunick's Hot Vapor Engine...perhaps the turbo he used was the clincher?
Would it not make sense to run a larger cooler to possibly get a little more out of it like for a trans cooler
I think there needs to be a vid of Brule's cars!
I found this researching if a return line is really worth the trouble on a system that doesn't require it. Deadheaded fuel is just sitting there soaking up heat waiting to go into hot fuel bowls. May be worth 3 hp/tq or could be worth 10, but this proves cooler fuel definitely makes a difference.
I love the transmission cooler idea, though the comment about a pinhole near an electric fan gives me pause to actually try it. But I would think that electric fans are sealed waterproof units. make sure the wiring connections are waterproof too and maybe there isn't as much risk, after all the fuel pump itself is often electric.
thing with a return added on a system that doesnt need it, it would keep the fuel cool in the hardline but if you run the engine long enough it will eventually heat up the fuel in your fuel tank and now you are back where you were to begin with. Some people swear up and down by using a cooler on your return line to prevent this from happening. But OE doesnt do this when they have electric fuel pumps mounted in the fuel tank. Their fix to cut down on excessive heat being introduced into the fuel tank was by first removing the return line from the engine bay by putting the regulator on the frame so it isnt soaking up heat from the engine bay. Now many are using a returnless system where the bypass is in the fuel pump module itself in the fuel tank where it simply acts like an oil pump by dumping the fuel right back into the fuel tank.
Could you thermal wrap the fuel lines
You'll ever seen the super hot vapor feiro I think it was Carrol Shelby that came up with it but it made more power somehow
colder fuel is harder to atomize, so you need to keep that in mind as well. if you cant atomize the fuel, then its worthless, and could get the opposite effect
This is why in the old days they had a cool can, metal fuel line in a coil sat in a can filled with dry ice.
Maybe utilize the stock ac system to consistently drop the temperature like the co2 does.
Heres a different question, does cold fuel let you run higher compression or more timing where you would normally get engine knock?
Neat
Should improve on knock too right, opening up for all kinds of mods för efficiency, boost, cheaper fuel etc?
I wonder if the same results would happen with a modern port fuel injection engine?
Reckon you could go way more extreme with a Phase change cooler, get it to -100°C.
So do we need to keep motortrend+ ?
I would have liked to see any change in AFR
Wow, I actually am looking a a small trans cooler I got from derale it has 6an fittings already. I ordered it last week for my car, but I am fuel injected. Don't know how much that matters. It's just crazy that I was just thinking about this. Now I guess it might be worth my time to install it.
Fuel injected gonna be running at a lot higher psi meaning any leak extra bad and more likely. I'd check what the pressures the Trans runs through the cooler and see if it's close
1) make sure the cooler is rated for EFI pressures, many are fine up to 10 psi which is fine with mechanical fuel pumps but not good for EFI that is 30+ psi.
2) it will make a difference if you have the injectors spraying like a throttle body into the intake manifold, if you have ported EFI where the injectors sprays the fuel directly against the intake valve you wont see a difference. The throttle body style setup that sprays the fuel at the mouth of the intake manifold acts no different than a carb and the cool fuel will have a cooling effect more so.
I personally am looking at doing something like this for my 4150 Stealth EFI setup I have for my daily driver I am putting the finishing touches on. I am on the fence on if I want to cool the line or not. I already have the return line out of the engine bay by taking a page out of chevrolet`s book for the 99-04 Corvette by using the fuel filter/regulator assembly mounted on the frame infront of my fuel tank. I also am retaining cold air intake through the use of an aftermarket airbox that has a second duct so I can improve air flow while retaining OE cold air intake by pulling air from outside of the engine bay. I dont know how ever if cooling my fuel with a single pass inline heat exchanger type cooler would be worth the money and effort to do it. I dont see it dropping temperatures that much especially seeing I am running 3/8" stainless steel fuel line on the engine and I have a high flow 190* thermostat like my truck called for. I used to run a 180* thermostat but since going to EFI, hotter is better for efficiency coolant wise.
@Milner62 yea it's a transmission/oil/fuel cooler. It csn handle a few hundred psi
I USE TWO COOL CAN AND DRY ICE IN THEM AND DRY ICE AROUND MY CELL....WORKING ON USING THE AC IN THE ENGINE BAY LIKE DODGE DOES..... SCIENCE!!!!! IMAGINE THAT!!!!
Guys, you live in CALI… do some smog legal engine masters.. take a LS and add legal bolt ons or a cam that will still pass smog, or modern hemi. And would also love to see the fuel changes to power 89/91/race fuel/e85 on same engines… the other thing… your spark plug engine master was incomplete… really want to see that again with the e3… thanks guys.
Years ago I used a 6x12 cheap transmission cooler in front of the radiator. Needless to say My fuel bowls really never went over 95°.
You guys need to check and see if that helps with detonation (i.e. trans cooler)
What happens if you put dry ice in the cool can?
Can we use an extra ac unit to cool the fuel. Nvm use the main one I have windows
SLR Mclaren cools its gas using the AC system
lots of marine diesel engines run the fuel through a seawater cooled heat exchanger before it hits the injectors.
You should fill up your vehicle early in the morning.
The fuel is more dense at a cooler temperature. therefore, you are getting more fuel for the same price.
So I believe what you all just measured was more fuel being delivered into the combustion chamber.
By chance...did you all have a wide band O2 sensor installed?
I wanna see this on a 5.0 302 215hp motor it won't change much
I beg to to differ sir!!!!I use dry ice and two cool cans and I've dynoed and seen a almost 19 gain and on my boosted one a 28 gain and almost ten mpg gain.... SCIENCE!!!!CAR COMPANIES WANT YOU TO USE A CERTAIN AMOUNT OF FUEL YOUR CAR CAN RUN ON MUCH LESS WITH NOT MUCH LOSS...BIG OIL MY FRIEND THEY RUN THE 🌎🌍🤯
On a 640 hp engine it made 7 more hp. Not worth it. On a 215hp 5.0, the gain (if any) would be imperceptible.
Back in the day they used cool cans under the hood at the race track and it made the cars go a bit faster and when your racing .5 or .8 seconds or more faster in the quarter mile could win the race and the money.
The older engines are where you will find the major improvements. Not the newer new tech engines with major design upgrade's.
Run the motor on straight methanol that will make a great difference
Gonna make me a Frieburger fan cooler❤
What about buying gas in the morning when is cool so get more fuel in your tank vs hot noon vapors
Mercedes at least older ones routed the fuel lines through the A/C sytem it must be a super chiller of some sort
The cool can should be filled with dry ice and alcohol. May need to add a bit of gas line antifreeze to the fuel tank.
In the old days. I just used a coffee can with the fuel line coiled around on the inside. Put a drain in the bottom. Just add ice
I thought about using a trans cooler asa fuel cooler years ago but I thought it would be dangerous to have fuel going through a cooler not designed for fuel. I also thought about using an a/c evaporater as an air intercooler for a turbo or supercharger system
There's no worries with that.
It's only a few psi with a carb , and maybe 100psi at the most for injection and any decent trans cooler should be able to hold many times that.
When one is to cool the fuel one also increases the density of the fuel. Thus, some of the power increase could be to the decrease of the air/fuel ratio. The results kind of speak for themselves, but the test could have also included the data of the mixture. Perhaps a bit unscientific.
Where is the video for the cooler coolant temperature makes more power?
Fuel cooler would probably be best positioned under the vehicle connected to fuel lines heading towards the engine.
Under hood position is likely to heat fuel
The engine compartment is where it's likely to gain the most heat, so as close to the carburetor or fuel rails as possible would be the most efficient, it just needs a fresh air duct for the cooler.
@@edgarpryor3233, For a track car it probably would be ideal. For a driver that will be driven for hours at a time, it would be better off under the car in the cool air flow out from under the hood. The fuel will still cool, and the engine bay temperatures wont have that big of an effect on it. Thats assuming you are seeing a 40* temp drop minimum in fuel temperature with the cooler. The fuel wouldnt have enough time in the heat of the engine bay to lose that 40* temp drop fully.
also have to take into account Carbs and TBI when going down the road they get ice cold by the low pressure being created by air flow, this cooling effect also helps offset any heat you might have picked up from the fuel line.
So as with the co2 being discharged from a high pressure to a low pressure and getting cold as a result. Would not fuel do the same thing. like two thoughts:
1 a recirculation pump of fuel through an inline venturi back into the tank making the whole tank cold over time.
2 a high pressure fuel feed from the tank through a venturi into a surge tank at low pressure suitable for feeding a carb.
IDK just thinking out loud.
I will break this theory down which is how things really works since no one else has.
When you increase pressure you generate heat by increasing the pressure, this increased pressure how ever will transfer to anything cooler that is around it. When you drop the pressure it becomes super cooled.
This is how your A/C system works, you take refrigerant pump it up to 250 psi that puts it well above ambient air temperature, heat is attracted to the cooler air and thus the condenser drops in temperature. You then hit a regulator that allows pressure to drastically drop, it drops down to around 30 psi which causes the now ambient air temp gas to become ice cold. The air blowing across the evaporator is warmer and is attracted to the cooler gas in the evaporator so the air becomes cool as the heat transfers and then the AC compressor pumps it up to pressure again to start the cycle all over again.
In a EFI system where you are dealing with 60 psi fuel pressure, in theory it would chill down when the injectors sprays it dropping the pressure down to 0 psi. The problem is at 60 psi the temperature of the fuel you most likely wouldnt see a temperature high enough to cause a heat transfer from the fuel to the air around the fuel line in the engine bay. You might see a heat transfer to the fuel line which would result in no temperature drop of the fuel. Im sure there is some math formula out there for calculating this, I dont know the math to it but I do know with AC systems at 250 psi the condenser temperature is around 250 degrees though and when you drop the pressure down to 40 degrees it will drop it down to 40 degrees.
The big change is with air, youll see this with TBI and Carbs quite often if there is humidity when you are going down the road the low air pressure being created causes a freezing effect and can actually ice up your TBI or carb. Ive seen around here TBIs sitting and idling and start sweating as they are so cold just from idling and the humidity is condensing on the outside no different than on a glass with a iced drink in it.
In certain European sports cars the fuel circulates to the carbs & back to the fuel tank to help keep the fuel cool.
it is not made to cool fuel it is made because fuel system is so designed(always on engines with carb)
not always its just the way they regulated fuel pressure
fuel injection can do the same some have a return and some are dead end systems not for cooling but side benefit but if there's no heat sink in a cool place most of the times it will actually just heat up fuel from engine n exhaust heat then flow back into fuel tank hotter than it left so your heating up the tank
@@johnj2496, that is why manufacturers started moving the pressure regulator out from under the hood so the fuel return back to the tank didnt pick up excessive heat from the engine bay.
Its why my EFI conversion will be using a 99-04 Corvette fuel filter/regulator assembly mounted on the frame rail, this will have the fuel come from the sender to the filter just infront of the tank and the return right back to the tank with only a single pressure line running to the engine bay. Only heat being generated will be from the in tank electric fuel pump which is only putting miniscule mount of temperature to the fuel under compression.
I how ever have thought about a inline aluminum fin cooler mounted on the frame after my filter/regulator assembly to chill the fuel down before it gets to the engine bay. Just havent found enough information out there to have me dead set on it as being a benefit so far I am seeing it as a waste of money with no real world benefit.
On low pressure fuel systems that is a great way to reduce vapor locking. On EFI you dont have the vapor lock issue but you need the return to reduce pressure down for the system. Manufacturers have gotten away from the regulator under the hood because the return line under the hood was soaking up heat and transfering it to the fuel tank. Today most have the regulator on the frame rail by the fuel tank or they use a returnless system where the regulator and bypass is in the fuel pump module in the fuel tank itself.
Aftermarket Fuel Injection still does this with the regulator at the throttle body, such as the Sniper. The Stealth 4150 Sniper I got didnt have the regulator and requires a external regulator this allows me to use a 99-04 Corvette filter/regulator assembly that I plan to mount on my frame infront of the fuel tank so the return line is short and doesnt absorb heat from the engine bay.
Just a idea why not try to put dry ice in the tank with the coiled fuel lines
Surely not enough of a performance gain to warrant adding multiple failure points.
Use something like an interchiller too cool the intercooler and the fuel
Anyone have any ideas on why this might be?
Gotta change your name to "Coolberger" or "Iceberger"! LoL!
You forgot to try adding Liquid Nitrogen into the gas tank!!!!!
However, it would probably freeze the fuel from all the water in it these days.
Vizard came up with a better method: Water Injection cools the air charge very efficiently, & also adds additional expansion & increases compression ratio, he really put an interesting spin on it in his latest vid: "Worlds cheapest and MOST EFFECTIVE octane booster".
Doesn't a return style fuel system completely negate this? The fuel in the tank will be right around ambient temperature, so pumping any hot fuel out of the rail and back to the tank means you're always supplying the engine with the coolest available fuel
I think Smokey Yunick tried this in the late 50s early 60s
What if the ice cooler was using freon in the coils