My friends and I rent out a track for 2 hours, been doing this since last year. Only upgrades were sways and tower bar. My car would go into limp mode before the end of 2nd lap.

This year I was able to keep going on until I was too tired and need to take a break and pit in after 7-8 laps each session and no limp mode, I was shocked because I was totally expecting it after 2 laps. Only mods I added since last track day was KW V3's and HKS exhaust, short shift kit and SS brake lines. I am thinking this could be the exhaust because of heat transfer.

I found this: "According to Stainless Online, a stainless-exhaust kit manufacturer, stainless-steel exhausts are more efficient ventilation systems, which reduces heat buildup in the engine. This may justify their increased cost. "
Read more : Advantages of Stainless Steel Exhaust | eHow

Anyway very happy with this. I was able to truly test out the capabilities of the KW V3 and very impressed. My diff did want to act up a little bit at the end of the day when I stared the car again to drive home, thinking because the diff oil was too hot. But after shutting it down and let it cool down longer, it was all good throughout another 2 hour drive home.

 

Sweetness. I've got to get some track buddies

 

I didn't go into limp mode either at the track. Not sure if my aftermarket exhaust was part of the equation but cool info nonetheless.

 

If you're not going into limp mode, you aren't pushing it hard enough.

 

Ran flat out for 20 minutes x 6 sessions. I ran so hard I boiled my clutch fluid so either I'm just lucky or these cars are hit and miss when it comes to this problem.

Obviously if I ran for a full hour things might have been different.

 

Hey SkylineG where are you located? Or better yet where is the track you and your friends rent out?

 

Definitely pushed it to the limit. I made sure of it and since I have coils this year I was able to go all out. Also was able to keep up with my friend's e46 M3, he dusted me last year without my coils. He also has coils. My diff oil boiled at the end and my titanium exhaust tips are scorched.

 

I am in Toronto, Canada. It's a track called Shannonville.

 

Your location explains it, as your ambient temperature is 25 degrees F cooler than it is where I am. But the main this is that you're having fun driving your G and getting better on the track. Happy M3 hunting!

 

Ok somebody plz explain limp mode to me. I'm fully expecting to get reemed here but I've gotta know

 

When the car senses certain dangerous operating conditions (bad misfire, low oil pressure, high oil temperature) it cuts power and allows the car to still operated but with decreased power. In other words, it will still run but only enough to "limp" home or to a service location.

RPMs are cut to 2500. On a manual this allows you to gently accelerate and shift up to 6th gear and run about 60 mph. If you attempt to rev the engine above this, you get pimp slapped by the limiter. Once the condition is resolved (or reset via OBD II device) it goes away. Such as when it cools off or oil pressure is restored.

 

I guess I'm not driving it hard enough yet. Need some track time

 

nvidia test pipes + aftermarket y-pipe + extension pipe + tomei = XXtra Loud