Exhaust plume
#1
Scooby Regular
Thread Starter
A mate off mine has a 98 STi typeR, a year ago the engine let go on the no 3 cylinder, the engine was rebuilt & fitted with Cosworth pistons, the car runs great but uses a little oil, when planting his foot down at the near end off the rev range a large plume/puff off mainly brownie smoke appears, what hes asking is that is this because the car was rebuilt using cossie pistons or is there a prob lurking round the corner??
Regards
Andy
Regards
Andy
#4
Scooby Regular
Thread Starter
No hes not using any octane booster just plain old optimax, he was told that the brown smoke was a common occurance when using cossie pistons but hes just being careful by asking me to ask the collective, anybody else using cossie pistons care to reply?
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fatboy_coach
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18 June 2016 03:48 PM