OK guys, go easy on me. I'm new to "performance" cars, having just bought a MY99 Turbo with SS back-box. Mostly stock otherwise except a Panel air filter. My question is, why does the engine "sing" when I change gear under heavy acceleration? Is it the turbo or the clutch? Is it normal? Is it OK? Or, do I need to improve my gear changes? Oh, while I'm at it - is it normal for Scooby catalytic converters to smell so bad?

 

what does it sing.... LOL

 

Very good Mr Horwich but I was hoping for something a bit more helpful.

 

sorry mate just didnt get what you meant.... just me been thick...

If it helps mine doesnt make any noises when driven hard like you said..... apart from normal engine noise when reving at 7000rpm..

Dan

 

The brake/clutch(?) pipes that run across the back of the engine bay on the drivers side have a habbit of resonating on high revving gear changes. The sound is more of a barking than a singing but can be very loud. If you think it is this, just stuff something between these pipes and the metal behind and see if the noise goes away.