Mazda RX8 Track Day + Temperature Update with New Cooling Mods
Вставка
- Опубліковано 9 лип 2020
- I took my 2007 Mazda RX8 to the track with new cooling mods. Unfortunately, it was so hot out, that my engine was still getting too hot. If you have any ideas of other mods I can do to improve water temperature cooling, please let me know in the comments below! Enjoy the video!
- Авто та транспорт
Get a tune for the fans to kick on sooner, thicker foam around the radiator, FAL490 fans. TREX Performance can get all that for you. Also hood vents that are closer to the front of the hood would help dramatically reduce back pressure on the radiator.
I'm liking the idea of a carbon fiber hood with vents too. Also carbon fiber won't absorb as much heat from the engine and the sun as the black steel one. I will look into the fans too, thanks!
Yeah you definitely need those fans during summer game changer 👍🏻
Japanda Tuning np, goodluck! And those fans will make a huge difference too much CFM!!!
@@TheBaccaClench Doesn't help in track conditions. If its overheating in traffic sure.
damn it! I am really impressed with the RX-8 riding together with the CAMARO which has more than twice the power. 🔥👑
yeah I agree
I was an 04 RX-8 Owner and as you can see we can do more with less, that is why I love those engines. I think you can upgrade the Oil thermostat from IR performance = it seems like an inexpensive mod. Here, check this link ua-cam.com/video/VgxgeM_sYnY/v-deo.html
and if you want to go Technical with more coolin' than i encourage you to watch this awesom vid.. ua-cam.com/video/rAyZesc4gMM/v-deo.html
maybe after these mods you get to pass the Camaro and leave it in your rear view.
Since this video is several years old, it’s probably too late, but I used to have the same issues overheating when tracking my RX8, and know several others that did too. The way I solved the problem was airflow. Nothing else worked, but now I can track it on the hottest summer day with no issues. First, get rid of the stock intake. Racingbeat intake just as bad, the point is to get rid if that huge box. AEM intake will allow much more airflow through radiator. Add some ducting (I used aluminum, but foam should work too) to force all air to go through the radiator, rather than escape around it. Then add hood vents (Good-win Racing is what I used). No need for carbon fiber, just get a stock hood from a junk yard, it will be plenty light and fitment will be perfect. For winter I put on the non-vented hood, summer or track day the vented. Four bolts, very easy. If you do this you will not have any more problem.
PS No need to get rid of your A/C
Love the rx8 mate, you aren’t half bad to 😘
GAYYY
I have this same struggle bro! In just daily driving out here in Arizona often 100°f Iv done almost everything. 70%water 30% coolant didn’t do much. Started running 20w-50 that helped prolong the temps rising but still get to 220°+ more often than I’d like
hood vents just make sure they actually work using the wool tuft test
You gotta love this car
I ran 100% coolant in my STI Subaru which helped.The other thing you can do,is turn your heater on,just full red,without the fan on.The coolant then circulates longer.Hope that helps.Thanks for your good videos.Greetings from South Africa 🇿🇦
Bad news. I just changed my oil cooler thermostat to 180. I track my RX8 at Blackhawk in illinois and Road America in Wisconsin with max 200 Fahrenheit. Stock radiator and A/C still installed. You did a lot of unnecessary work. Remove your catalytic converter and premix 1 oz per gallon.
i think it is kinda worth it if u daily drive it, atleast from my experience. (Im from Indonesia btw, the car runs super hot here)
I ditched my regular Mishimoto fans and got Mishimoto Raceline edition fans that produce way more CFM than stock fans. These fans coupled with fan relay manual switch mod, saved my butt on drift day when ambient temps were in the 90's
Hey bro, get rid of the thermostats in the oil coolers.. it’ll take some grinding etc unless you find short bolts that fit. Also get some tuning software so you can set both fans to come on at the same time at whatever temp you want. I use VersaTune and I have my fans to come on at 75 degrees celsius and with the oil cooler mods, stock rad and mishimoto thermostat, I never see above 90 degrees (that’s about 194 f). Also I’m planning to run an additional radiator connected in series to my stock one and place it in my under tray laying flat. That should make it much more efficient at cooling
Haven't seen anyone say this yet. The undertray is also very important to cooling. I also concur with oil cooler tstat replacement. Its a bit on the costly size but worth it.
I live in Thailand. Pavement temperature was around 40c. I have tried everything. Overhaul engine, thicker radiator, bigger and earlier radiator fan, anti-cavitation water pump, earlier thermostat, battery relocation, vent hood, de-catalytic converter, CAI, drill plastic behind oil oil cooler, water wetter, high grade engine oil, heavily premix. Overheat issue did improve but only by less than a minute. The only mod that make a different for me is aftermarket twin oil coolers without thermostat. I ran 30 minutes plus non stop in race track with water temperature stable at 102-103c.
Which oil coolers did you used?
@@pv4083 I used cheap Taiwan oil coolers which is currently used in racing in Thailand. But the expensive parts are connectors and stainless steal lines which have to be able to with stand the 9 bars oil pressure at 9000 rpm of RX-8's red line.
T-Nai Tan thank you for the reply!
Try the Cusco top radiator cooling plate its good for -3 degrees. Also take out your license plate grill and open every hole in it good for -6 degrees. If you haven't yet buy the larger aftermarket sump which adds 600ml of extra oil and cooler temps. One guy here in Australia also took out a section of plastic material in front of the front wheels to allow the front oil coolers to operate better this also dropped his temps on track. Bonnet vents also help.
Great video. Try more water and a bottle of Water Wetter to get those temps down. You could also try some weight reduction to reduce strain on engine, brakes and tires. Back seat, passenger seat and a Lithiumax battery are easy ones, go 2 piece rotors next time and lighter wheels. Also please do up your helmet and wear a long sleeve shirt as a minimum. It might be hot but burning flesh is hotter.
Is that a 16' Robalo in the background of the intro?!?! 😍😍😍
Maybe you should DIY a radiator sprayer. Get some inspiration from the Subaru intercooler ones..?
Try a tune for the fans, plus replacing them (possibly with an aluminum shroud), you can add a vented bonnet and if you're still not happy with these changes you can probably go ahead and add an electric water pump ( it removes completely the thermostat so I assume it's just for track car).
Use a stock denso radiator and duct it using aluminum. You can also put 25 row oil coolers on the car if needed.
Do those have plastic like the OEM? I would worry about cracking.
well unfortunately dual radiators wont do much, perhaps you can try dual fans? if that doesnt work methanol injection is common for cooling
Hey man I love the content. I’m a new subscriber and I love all sorts of cars. I’m really into Honda’s and Rotarys and I’d love to get an rx8. What do you think about daily driving a modded Rx8?
Horrible idea, take it from a guy who has owned two. The rx8 is best as a second car that you can enjoy on weekends. If you DO want to daily rotary you will need a lot of money an patience. I currently daily my 98 civic ex during the week, its reliable and only cost me $2000 the rx8 is my fun high maintenance car lmao
I daily drove my 05 RX8 For over 3 years, and 2+ years modded with Coilovers, Racing beat headers and Racing beat exhaust and well i guess it just depends where you live, road and weather conditions, but i put over 37k miles in 3 years with no problems! just regular oil changes, and I replaced plugs, wires and coils just as preventive maintenance ! was a hell of car and i would've still had her if Hurricane Harvey didn't take her from me :/
you can go faster around the corners if you drift you should try that next time
The brake squeal, was that your pad compound?
If u can find someone that has the software to hack into the ECU to change stuff, the simplest of things is to turn the fans on sooner. Factory fan low speed kicks on at 97C (206.6F) and then the high speed, "Please cool down cause I'm about to die" fan speed, kicks on at 102C (215.6F). At that point, you're already in the position to have to slow down. I had mine tampered with and I turned my low speed on at 92C and high at 97C, so a 5C lower temp kick on of the fans. Some use the relay mod with the temp gauge to turn the fans on sooner. Did you remove the padding from inside the engine bay? That stuff also traps heat (might as well remove it if you're only gonna track this car). In general, other ways of letting heat escape the engine bay are probably a good way to start. You can get some washers or spacers to put on the hood hinges to make the rear part of the hood stick up about an inch to let more air flow out of the engine bay (not sure how effective that is, but I've seen it on a few RX-8's).
Hey bro, ive had my rx8 for 5 months now and i live in australia, i wanted to know, whats the best way to drive it when hitting redline, is it okay to put it in 2nd redline the car then change gear into 5th because it is going so fast? and also my clutch starts feeling stiff when i do geae changes at a high rpm what could it be?
I recently removed my low temp thermostat which made 0 difference on track and blocked bypass in thermostat housing. I had a spare, so gave it a try. Car takes twice as long to warm up BUT the cooling on track was significant. somewhere around 97 c. My location is tropical so ambient is hot. Regular highway driving will send temps into 80s. I may try modding the thermostat so that the flow is better to the radiator and retain the stock warm up times. Car is 05 rx8, 6port, stock radiator, single stock oil cooler. 20-50 mineral oil.
where can i get low Temperature Thermostat? i mod my radiator fan rotate at 97celcius by adding fans controller
@@yoyyoy4789 google this "Mishimoto MMTS-RX8-04L Racing" this is one of a few available although i dont find it made anydifference.
Hood spacer, add some washers to lift at the hinges and remove rubber seal. It could lower engine temp.
Install manual fan override switch to keep them running all the time.
In general this idea doesn't work because of high pressure zone at base of windshield; you'll be cramming more air into engine bay raising under-hood pressures especially behind radiator. Hood vents do a better job for helping a radiator do its job.
If you're going to do more videos like this, maybe put a wireless mic in the helmet. Can't really hear what you're saying, over the wind. Love the videos, though. I'm rebuilding my RX-8, right now. Got into a little scuffle with a little deer. Wish I could be racing it, instead... :P
Hood louvers strategically placed at a low pressure zone to extract the hot under hood air while increasing air flow (do not use hood spacers, that area at the base of the windshield is at high pressure.) And Use Redline water wetter at 100% water, no antifreeze when at track.
So hood louvers lower, closer to radiator and fans?
Put the fans running all the time While driving like ac on so hock up the ac relay
I highly recommend the ECU Reflash. Your fans will start sooner, your OMP will use more oil, and theres some timing changes on the shutter valves that improve torque, and the best one yet... 10K REDLINE! Also you can delete the thermostat as this car is not a daily.
there is no need for 10k redline, the 6 port engine already dies down past 8200-8500rpm...
Dalvaru Ciprian but with the ECU Reflash fuel cut off will be disable. You dont need to rev up 10K, but with shutter valve timing change and more fuel.... More power!
@@joselperez9384 the rev limiter is there for a reason. Firstly most rx8 engines are poorly balanced, secondly, your injectors can only put down so much fuel at that rpm, so you risk lean spikes. Sure, ecu tuning an rx8 is very benefical and i have invested myself into mazdaedit, but my revlimit is untouched.
Dalvaru Ciprian Your right, my tunner ask me what mods did i have before reflashing the ECU. Mazda put a lot of limitation on RX8 for Emissions regulations. When those limitations are gone, is a brand new beast! For example, when you press the clutch and released the throttle, the fuel cut off immediately, when you disable that and let the Throttle body and injectors to close gradually, the engine behave much better when up shifting.
Dalvaru Ciprian Can you reflash and program a new ECU with Maxdaedit?
You can do what i did to mines. Make the fans turn on sooner. They turn on around 200 if im correct
Doubt fans will keep the car cooler at track speeds, because the natural airflow is probably higher than what the fans can do.
@@1cipi it helps me. My car stays around 190-210 tops even when i push it. But my rx8 is also tuned
for cooling you want to focus on making the air pass through the radiators and not so much on ramming air into it, although ramming air can help but what good is that if doesn't really have no where to go except for a high pressure zone. Hood vents are your answer and if you want to diy your own use a magnehelic gauge. Keith Tanner of flyin' miata has some good info hood vents: ua-cam.com/video/MCXhU0IeyTg/v-deo.html. And wool tuft test to confirm air flow exits the hood.
ecu will read different rotation for radiator fan coz of different thermostat temperature, is it true?
Also, is your rx8 N/A? Or turbocharged?
Battery relocation in the rear
Get your ECU tuned, remove thermostat.
Oil cooler second or biger
Where do you usually track at ?
Thicker foam around the radiator helps a lot. May also want to consider Mazmart water pump if you live at the high RPMs. Hood vents should also help a lot, RB said the hot air does not escape very well. Check out this: www.rx8club.com/series-i-aftermarket-performance-modifications-23/hood-ventilation-ideas-123434/
I have an 04 and when I make a right left turn I experience fuel starvation. Are you having the same issue?
Yeah the rx8 has a dual saddle fuel tank, the only way you could fix this is by getting a different fuel tank, it also helps to always keep the fuel levels at over half a tank.
What about running E85? Hood vents, could be the perfect excuse to get a carbon fiber hood 😉
+1 e85 helps reduce temperatures ans detonation
Or a snow performance water/meth set up
Is this NJMP?
where can i get low Temperature Thermostat? i mod my radiator fan rotate at 97celcius by adding fans controller
I got an ecu gauge works brilliant
Use a water wetter
E85
I’m thinking of changing my rotary engine is it worth it?
no
yes you should
Remove the oil coolers thermostat,
I made this
Oil coller
Install fan controller
Do you have Instagram?
19:07
Peter Armour don’t be such a simp, japanda can answer his own comments