I know this has been asked many times, but i've spent hours looking through all the posts relating to it, and not come up with a clear cut answer.
My cupra is currently running jabbasport stage 1, std turbo etc (think boost peaks at about 20psi, and drops to 12-13psi), altho i can't say i've ever watched the gauge properly.
Should i upgrade to the yellow spring??
Reason i ask is i hear a loud sort of hissing/air moving kinda noise when i'm on boost for more than a few seconds, and i'm not sure if it's simply the turbo sucking noise (first turbo car, and i'm running a forge tip), or if it's the D/V leaking (i think i maybe down on power also, but it may just be me getting used to the car, only had it a couple of months)
I've done the simple test on the valve that forge tell you to do (leak back or something), and thats fine, but thats not the problem.
It would be interesting to hear forge's view on this aswell?
Cheers
Paul
My cupra is currently running jabbasport stage 1, std turbo etc (think boost peaks at about 20psi, and drops to 12-13psi), altho i can't say i've ever watched the gauge properly.
Should i upgrade to the yellow spring??
Reason i ask is i hear a loud sort of hissing/air moving kinda noise when i'm on boost for more than a few seconds, and i'm not sure if it's simply the turbo sucking noise (first turbo car, and i'm running a forge tip), or if it's the D/V leaking (i think i maybe down on power also, but it may just be me getting used to the car, only had it a couple of months)
I've done the simple test on the valve that forge tell you to do (leak back or something), and thats fine, but thats not the problem.
It would be interesting to hear forge's view on this aswell?
Cheers
Paul
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