The 2TH PWR Track Car conversion
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From: London, Ontario, Canada
Thread Starter
New Member
iTrader: (21)
Joined: Sep 2006
Posts: 8,159
Likes: 107
From: London, Ontario, Canada
stock intake i guess with his 90mm throttle body and my 5/16 plenum spacer for the upper plenum.
Sasha estimates 320 whp? We shall see. I might run a tune for oxygenated race fuel for CSCS which will bump the power some?
Run 94 octane for accessibility, then jump up to the oxy race gas when I have to battle the Vettes and RX7s.
Sasha estimates 320 whp? We shall see. I might run a tune for oxygenated race fuel for CSCS which will bump the power some?
Run 94 octane for accessibility, then jump up to the oxy race gas when I have to battle the Vettes and RX7s.
Ya I was wondering if you were going to use a aftermarket plenum or a spacer. Sasha is a wise young man it'll do what he says!
90mm TB is awsome too. Stock air box? 06+? Or Injen?
90mm TB is awsome too. Stock air box? 06+? Or Injen?
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From: London, Ontario, Canada
After reading on a friends blog about this program called optimum lap I thought I would use it in conjunction with my data to see how my car should do at TMP. After painstaking recreation of my car's physics and the websites TMP data an "optimum" lap time of 1:21.11 was achieved. Very cool. I set the star specs lateral grip at 1.05G which I think is reasonable as those numbers were seen occaisonally within my GPS data. While some sector speeds are off when put up to scrutiny, I think both my friend and I found this program to be very accurate overall. When I increased the lateral G of a tire to that of Hankook TD's lap times dropped significantly. I'd highly recommend checking this out. http://www.optimumg.com/software/optimumlap/ TMP GPS data has been saved on the website once you have downloaded the program so there is no need for you to have your own map. You can just import it. Simulate. And have fun.
Predicted optimum lap.

One of my best laps from real GPS data. 1:20.969 here.

And stunning predictions with 1.24 G tires. 50 hp more. 2700 rpm more. A little downforce. And 110 lbs weight loss.
Predicted optimum lap.

One of my best laps from real GPS data. 1:20.969 here.

And stunning predictions with 1.24 G tires. 50 hp more. 2700 rpm more. A little downforce. And 110 lbs weight loss.







