JET's 335Xi

[simulatedwood]

Originally Posted by JET

Yep, the car isn't happy about something. Racing a modded G35S tonight and it threw me in to the stock map after flashing the CEL. I also noticed on the first race with him that it was lowering the boost in the middle of the rev range(beat him by 2 car lengths to 80). I am going to toss the laptop in and do a little logging tomorrow after work.

How fresh are the plugs and coils? I wonder if you might be experiencing the carbon build up issue on the intake valves.

I cleaned my intake valves the other night and the car runs way smoother now.

[JET]

Originally Posted by simulatedwood

How fresh are the plugs and coils? I wonder if you might be experiencing the carbon build up issue on the intake valves.

I cleaned my intake valves the other night and the car runs way smoother now.

Plugs are fresh, coils are stock I believe. After the reset that night it has run just fine. I did some logging last night and it was holding good timing. It was not holding boost well though. I have the meth bung on my charge pipe and I am going to make an adapter to do a boost leak tester. I want to make sure I don't have any leaks. I don't really think it liked being on the dyno.

Hughes- running 10.2:1 compression and boost makes things a little trickier than normal, not to mention DI. It looks like everything is just fine now, I logged about 5 runs last night. I need to see what levels of E85 we have too, I don't have a tester.

[simulatedwood]

Originally Posted by JET

Plugs are fresh, coils are stock I believe. After the reset that night it has run just fine. I did some logging last night and it was holding good timing. It was not holding boost well though. I have the meth bung on my charge pipe and I am going to make an adapter to do a boost leak tester. I want to make sure I don't have any leaks. I don't really think it liked being on the dyno.

Hughes- running 10.2:1 compression and boost makes things a little trickier than normal, not to mention DI. It looks like everything is just fine now, I logged about 5 runs last night. I need to see what levels of E85 we have too, I don't have a tester.

Boost leak, makes sense, I wonder if that explains your lower then expected dyno pulls too? Also wanted to mention my MPG went up again, after the intake valve media blasting, I gained another 2 mpg for 27 mpg highway and no more cold start misfires.