Recently tuned my car on Race Gas and the next day I went to a dyno shootout. While I was on the dyno, we made three pulls. The first one hit timing at about 6k rpm and the second-third pulls made about 100+ whp less then what the car was suppose to make. After the competition, I changed back to 91 and flipped maps, but my car now sounds like a turbo civic from the engine bay. It is extremely loud, but the car still runs fine. I am thinking it could be a gasket blown somewhere and leaking some fumes, but has anyone had experience with this problem. I am currently at my parents house, so I don't have a shop nearby to go to. Thanks .

 

I used to have the same prob on my turbo RSX and it turned out to be my downpipe cracked. sounded like crap and fumes all the time. Where in SD are you. im at scripps ranch. nice numbers anyways.

 

Check the exhaust manifold and the gaskets around it.. if still nothing.. check the wastegate...

 

Thanks guys, I'll check it today. I live in UTC btw MRQ06, come check out some SD meets .