Hey all,
Got a 32 gtst with...
Full 3inch turbo back exhaust, split front/dump pipe, gutted cat, Straight pipe
RB25 neo turbo, running 12 psi
Turbotech boost controller
Front mount intercooler
Adjustable cam gears
Bosch 040 fuel pump
Just Jap coil packs
K&N panel filter
Safc2, tuned by re customs (186kw atw)
since i bought the car there has been a rattling noise coming from around where the turbo is, which ive always assumed was an exhaust leak. However a month ago or so i put my foot down on full throttle. The car started boosting then got to roughly 6,000 rpm/ around id say 9psi or so. and then all of a sudden lost all boost and the revs dropped down to about 2,000 rpm. I was abit worried when it happened and thought it might be a vac line or something, but it never happened again, so i just forgot about it...
So yesterday took my car to get an unexpected timing belt change done, and the mechanic heard the rattle from around the turbo, and thought that it would be that exhaust leak, So they changed the gasket just after the turbo going into the dump, hoping that it would improve the performance and stop the horrible rattling noise.
So i went to pick the car up today, and the rattling was still there, Then they tell me they think its the waste gate. i thought i should take it for a drive before i leave... so began to accelerate, as soon as it began to boost it started shuttering and loosing all boost.
I just want to know, what everyone thinks it might be?
If it is in fact the waste gate, that means a new turbo because its internal wastegate obviously. So where to go from there? I am thinking just going the same turbo so i dont need to re tune the car?
Could it be just vac lines etc?
cheers, jack.