Tial Q BOV 10psi spring

[Anthony Yacullo]

Hey all,
just got my tial in my car and thought I picked the correct spring. But I am still having issues with flutter/surging. At part throttle if lift off my foot, it takes a sec or two to open, cruising is where it surges on low boost, but wot open great.

My vac is between 17-19, but I think I should have gone with the 11 psi (boost gauge could be off) if you guys have any suggestions I would like to hear or thought about it!

Thanks,

 

[dustyboner]

10 psi spring looks like the correct one. Your vac/boost line is as Tial calls for, correct?

you may wanna check your vacuum with diagnostic type gauge or if your set up for it, get if from a datalog. it doesn't take much for an autometer gauge to get off by a few psi. make sure the car is fully warmed up when you check idle vacuum

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