Quote:
Originally Posted by CaliforniaKid
Any updates OP? I’m thinking of getting one for my ZLE. I also love to go to the road course and don’t want any knocking/heat issues. From what it seems you can order them now that come with a map meant for 91 octane on a stock car.... 700whp or so? I’ll link the video I saw from Magnuson at the bottom. I wouldn’t mind doing a 50/50 100 octane to 91 octane mix on road course days just to play it safe. Opinions?
https://youtu.be/qeXS1QpzadY |
Don't do it unless you are prepared to make a lot of other changes to the car. The default 90mm pulley is too much boost for the stock fuel pump to keep up on a road course. I told Magnuson about this but I don't know if they ever did anything about it. At a minimum you'll need a JMS voltage booster to keep fuel supplied. Don't even consider the supplemental kits like the one from DSX Tuning. It's junk and completely worthless for road course use on a car with a saddle tank.
The next problem you'll have is heat. With the extra power comes a lot more heat. The stock cooling cannot keep up on a hot track day. My coolant temps are going 240+ and my oil temps are 290+. The transmission temps were a lot hotter too (about 240). I've fixed the trans temps with a supplemental cooler. I have a new primary radiator, center heat exchanger for the supercharger, and a custom oil cooler coming.
I plan to follow up at some point after I get all of the issues sorted.