since i got my sapph the thermostat seemed to be stuck open so it was always running below normal temperature but car drove spot on
got a new thermostat and popped it in last night and car warms up to half way now no problem, all is well until you drive it hard when boosting between 1bar and 1.5 bar its starts to hessitate slightly and pop and bang a little bit , when drifting it and when its close to the limiter at full throttle its popping and banging mad , but seems to only happen since the car has been warmed up , car has no problem starting and driving normally when hot either, what do ye guys think may be the problem ?

 

Could be do many things mate. We could supply you with an endless list of things that could be wrong but unless you got money to burn it wouldn't help. Best thing you could do is take it to a tuner for a setup mate. Especially where your problem could be a broad number of things. Probably a decent setup would fix it.

 

ya but car never missed a beat when cold no tuners around me for 500 miles , car was awesome before the thermostat was swapped , i know theres an endless list of what could be wrong but just taut someone might have actual under bonnet experience , and may have seen a problem like this before , car is chipped and running greens , obviously a tuner could cud fix it bud ,

 

With your manner of engine sympathy I wouldn't worry most likely go bang soon anyway.
Before it goes bang I'd be seeing when the fuel filter was last changed, if unknown do it anyway, and put a new CTS in there, it sounds like it may be running very lean, the CTS is the main corrective factor for the co.
tabetha

 

I would be checking the CTS and CO.

Martin

 

ill swap the cts off another one and see how that goes the co is fine , , the cts is the only thing that would effect fueling when car has warmed up so id be hoping that will cure it