02-15-2018, 04:24 PM | #1 |
Drives: 2016 2SS M6 Join Date: Jun 2010
Location: McKinney, TX
Posts: 144
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Ice Packs and the Texas Mile
At the last Texas Mile event I participated in, I noticed those with TVS/Roots superchargers putting ice packs on the top of the supercharger between runs. While I understand that they are working to keep the IAT’s low for the next run, I have a couple of questions about the interval between runs.
It’s typically several hours between runs, which gives the engine time to cool down. Being that the engine has cooled down, is the ice needed? I’m guessing leaving the ice on helps while staging prior to the next run. If this is effective, is it better to leave the hood open with the ice sitting atop the supercharger until the last minute; keeping the IAT’s down? Seems to make sense, but I don’t want to look silly if it doesn’t make much of a difference when the engine had cooled down. Depending where you are in the line called up, it can take a bit to get to the front. I’ve always had a modded N/A car, this my first FI experience and I want to make the most out of my run next month. |
02-16-2018, 10:30 AM | #2 |
Speed Freak
Drives: 2013 ZL1 Camaro, 2016 Camaro SS Join Date: Jun 2013
Location: Ardmore, OK
Posts: 2,637
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I think I have 5 Texas mile trips and all of them were on forced induction, in theory every little bit helps... In practice the only thing that really keeps the IATs down over a one mile run is circulating about 10 pounds of ice through the intercooler system.... and the longer you idle the more ice you melt prior to the run, that is why it really makes a difference if you can push your car to the starting line.
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2016 SS -AGP twin Borg Warner 7163 EFR's, LT4 mechanical pump, LT4 injectors, Walbro 255 low side, Castrol SRF. 734whp/759 tq
2013 ZL1 -ADM - 427 LSX 6 bolt, O-ringed block built by LME. Twin PT6466 turbos. RPM custom manual trans, RPS Quad carbon clutch, 9" Hendrix rear diff & axles. ADM/squash fuel system, Ron Davis radiator, Spal fans, AGP air to air, turbo plumbing. LPE oil cooler, rear bushing upgrade, roll bar...etc. rwhp 1400+... 212.5mph, best Texas mile to date. |
02-16-2018, 01:35 PM | #3 |
Drives: 2016 2SS M6 Join Date: Jun 2010
Location: McKinney, TX
Posts: 144
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Thanks Jessrayo. I would need an ice box system be able to circulate the ice through the intercooler, correct?
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02-16-2018, 02:33 PM | #4 |
Drives: Black 2017 Camaro SS 1LE Join Date: Dec 2016
Location: Virginia Beach
Posts: 1,319
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Not to push people's channels on here but this guy was doing a rebuild and added the killer chiller. You see them touch the lines and blower and it was cold to the touch after doing dyno pulls. It's a gen 5 but gen 6 cars have installed them too. Long video but if you forward to when they are looking under the hood you'll see them talk about it.
https://youtu.be/nXLBFTpeJaM
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2017 1LE SS Black - Mods - Forged - lowered compression - BTR custom Cam - Whipple, 3.500 upper and 8.0 lower pulley, Roto-Fab, 1 7/8 Kooks headers, off road pipes, & 3" Kooks full exhaust. LT4 fuel system, with Alky single nozzle running 100% meth. (not installed yet) DSX Tuning flex fuel and DSX tuning Aux pump
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02-16-2018, 08:56 PM | #5 |
Drives: 2016 2SS M6 Join Date: Jun 2010
Location: McKinney, TX
Posts: 144
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Thanks Joe. I’ve thought of adding the same mod.
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02-17-2018, 01:03 PM | #6 |
Drives: 2001 Audi TT, 2016 Camaro Join Date: May 2016
Location: Eastern Washington
Posts: 833
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I'm playing around with thermal isolators and I'm finding that it takes about 24-36 hours for my TVS supercharger to fully cool down to ambient temp after a run. This is inside a temp controlled garage and the temp on top of the case at 110F right after shutting the engine down.
Sure surprised me. |
02-17-2018, 01:46 PM | #7 | |
Drives: Camaro Justice Join Date: Jun 2007
Location: Virginia
Posts: 20,174
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02-17-2018, 09:18 PM | #8 | |
Drives: 2016 2SS M6 Join Date: Jun 2010
Location: McKinney, TX
Posts: 144
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02-19-2018, 08:56 AM | #9 |
Speed Freak
Drives: 2013 ZL1 Camaro, 2016 Camaro SS Join Date: Jun 2013
Location: Ardmore, OK
Posts: 2,637
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We log all the data on my car at the Texas mile and the ice box really works, like max IAT of 90 at the end of the run. I have heard the chillers help at the mile but they cannot come close to ice. The chillers are driven by the a/c compressor and that turns off at wot. Plus think how long an ice machine has to run to make 10 pounds of ice and then think of how long you would have to run the a/c compressor on your car to get that level of cooling....the ice box is the answer.
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2016 SS -AGP twin Borg Warner 7163 EFR's, LT4 mechanical pump, LT4 injectors, Walbro 255 low side, Castrol SRF. 734whp/759 tq
2013 ZL1 -ADM - 427 LSX 6 bolt, O-ringed block built by LME. Twin PT6466 turbos. RPM custom manual trans, RPS Quad carbon clutch, 9" Hendrix rear diff & axles. ADM/squash fuel system, Ron Davis radiator, Spal fans, AGP air to air, turbo plumbing. LPE oil cooler, rear bushing upgrade, roll bar...etc. rwhp 1400+... 212.5mph, best Texas mile to date. |
02-19-2018, 11:13 AM | #10 | |
Drives: 2016 2SS M6 Join Date: Jun 2010
Location: McKinney, TX
Posts: 144
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02-20-2018, 08:55 AM | #11 |
Speed Freak
Drives: 2013 ZL1 Camaro, 2016 Camaro SS Join Date: Jun 2013
Location: Ardmore, OK
Posts: 2,637
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No, I can't afford to do it twice a year and have been going to the fall run. Best of luck to you.
__________________
2016 SS -AGP twin Borg Warner 7163 EFR's, LT4 mechanical pump, LT4 injectors, Walbro 255 low side, Castrol SRF. 734whp/759 tq
2013 ZL1 -ADM - 427 LSX 6 bolt, O-ringed block built by LME. Twin PT6466 turbos. RPM custom manual trans, RPS Quad carbon clutch, 9" Hendrix rear diff & axles. ADM/squash fuel system, Ron Davis radiator, Spal fans, AGP air to air, turbo plumbing. LPE oil cooler, rear bushing upgrade, roll bar...etc. rwhp 1400+... 212.5mph, best Texas mile to date. |
02-20-2018, 04:13 PM | #12 |
Drives: 2016 2SS M6 Join Date: Jun 2010
Location: McKinney, TX
Posts: 144
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