[Celticsfan34life]

Does anyone track their car with a jb4 installed? How are your experiences with it?

[D_SheerDrivingPleasure]

Originally Posted by Celticsfan34life

Does anyone track their car with a jb4 installed? How are your experiences with it?

The car does not lack power. My advice is to spend the $ on good driving instruction, brakes and suspension (in that order).

Last week a guy in GT3 cup car ask if I had a tune. I'm bone stock but I've done 20+ events at that track including several ride alongs from racers.

All the speed comes from the corner enrry and exit. Bump, set, spike.

[McLaren720s]

My understanding is that some people got check engine lights with JB4 on while tracking.
Maybe someone can confirm or deny this.

Needless to say, I would just turn it off regardless. You're only generating more heat and stress with it without much benefit.

[djpapeleta]

Originally Posted by McLaren720s

My understanding is that some people got check engine lights with JB4 on while tracking.
Maybe someone can confirm or deny this.

Needless to say, I would just turn it off regardless. You're only generating more heat and stress with it without much benefit.

I did do a novice track day over the weekend with map 5 running e35. When I got in a strait away I went full throttle and got a drive train malfunction. I restarted the car and it went away. Changed to map 4 and didnt get it again. I think map 5 was to hot.