hi all, im getting a fluctuation in boost in 4th and 5th gear, ive been over everything its been mapped and on rolling road about 5 times but still no one knows why its doing this, also the latest thing to pi** me off is when it was on the rollers the last time the fueling went through the roof rich, it went off the chart on the dyno, this only occures upto 3500rpm.

can anyone please help with posabilitys its been months now with no result, sorry about the spellings.
thanx

 

Maybe an upgrade to a 3 port boost controller?

 

Graphs would help if available?

 

what ecu you running? as said what boost control?

if fuelings going off the chart then theres def something up, where you been taking it to be looked at? would have thoguht they could advise :s

 

Sounds like it could be compressor surge again, do you have a silicone turbo intake pipe?

Cheers Iain

 

Ecutec standerd 2port, thi inlet is the standerd hard plastic one, its funny that the fueling was ok and I changed nothing on the car then a month later its over fueling, the boost has I think allways fluctuated. Sometimes very rare it will feel ok.

 

get it to someone who knows what there doing would be my best bet

 

I've took it to a few people and no one can tell me as yet, that's why I'm asking everyone on here: -)

 

maf???