09-08-2023, 05:02 PM | #1 |
Drives: 2019 Summit White ZL1 Join Date: Mar 2020
Location: ZL1 Nirvana
Posts: 103
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MAT- What is considered too high?
Ok so I recently installed a bunch of bolt ons. 2 inch headers , Flex fuel, JMS Fuel Max, wide band, 12% lower pulley, Banks IDash, rotofab.
I live in the South where is currently hits 100 plus every day. My MAT reaches 168 degrees fairly regularly. What do you guys consider normal and what is the point where you get concerned? |
09-08-2023, 05:06 PM | #2 | |
Drives: 2017 Camaro 2SS A8 Join Date: Aug 2018
Location: Petersham MA
Posts: 5,124
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Quote:
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2017 Chevy Camaro 2SS A8 Whipple 3.0, Mast Black Label heads, Fore triple in-tank pumps, 112mm TB, LPE +52% injectors, LPE BB HPFP, 15” conversion 1059 WHP/944 WTQ, 9.48@150
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09-08-2023, 05:17 PM | #3 | |
Having FUN in the SUN...
Drives: 2022 M6 ZL1 1LE Join Date: Jan 2022
Location: San Diego CA
Posts: 1,195
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Ambient 90F = IAT.3 of 115-120F Low Speed (light to light)... Ambient 90F = IAT.3 of 130-140F Red Light (extended idle)... Ambient 90F = IAT.3 of 145-155F Personally, I think my car does great, so i really don't worry about it, although I check the gauge constantly (more for learning). I assume the car is pulling timing over 150F, but when doing hard pulls its always between 110-130F so I think i am OK.. I would be concerned with anything over 150F for pulls... Just not an issue here. I agree with Josh about running some E. Also consider a larger HX and fender tank. I also changed my fan settings, so that helps alot when at idle.
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2022 M6 ZLE: Katech Standard Ported Blower + Ported Heads + 103mm TB + Oil Pump + C5R Chain + Valve Covers + Coil Relocation Kit
TSP VVT and DoD Delete Covers + LME Chain Guide + DSX Billet Lid + ATI Damper + 9.17" Lower + 2.4" Upper + MM Wild CC + RF BG Coated AR Headers + GESI UHO Cats + V Bands + AWE Touring + Magnaflow Center X + MSD Coils + Banks iDash + JMS Booster ALL the BMR Read End Goodies + BMR Motor Mounts + JRE Terminator Cam Package + FIC 30 + DMS Front HX + Fender Tank GMS High Flow Impact Bar + GMS Stage II Oil Cooler + GMS Stage III HX System = 770rwhp 815rwtq @E55 13.5psi |
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09-08-2023, 09:24 PM | #4 |
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
Posts: 6,953
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168 is pretty toasty for pump gas, but no biggie for E85. E85 likes heat pump gas doesn't. I agree with Josh that you should consider a flex sensor and running a blend of ethanol. You also would be better off porting the supercharger vs smaller pullies. Especially if limited to pump gas.
For example, on pump gas you need to pull timing around 132 degree air temps or you will get knock and be limited to 17-20 degrees timing max depending on fuel quality. On E50+ you can run 26 degrees timing even at 170 degree air temps and the engine is happy. A lot of people to this day still don't understand Ethanol fuels. It's like liquid intercooling...no amount of air to air intercooling or heat exchangers remove heat from the cylinder as effectively as E85 does.
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2016 NFG 1SS A8
Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA |
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