2002ws-6

iTrader: (5)

Just upgraded to the Tial 50mm on a rear mount setup. I got the 11psi spring cause my car pulls 21-22" at warm idle. When I give it a little gas but not quite boosting, and let off, the rattlesnake runs back through the turbo. Should I order the 9psi spring. I'll be putting the z06 cam in soon and that will pull a little less vacuum, I think? any suggestions. I just hate that sound makes me feel sick

Ryan K

iTrader: (11)

9psi spring...

2002/Black/SS

iTrader: (3)

is ur vacuum line before or after the throttle body? if its before the throttle body that would explain y it does that

2002ws-6

iTrader: (5)

Vacuum is taken off brake booster line. I had a smaller BOV before but it was open a little at idle so I never got the rattle snake sound, I just wanted a bigger BOV that would just stay shut at idle. I can rev the engine and let off and the 11 psi spring wont open. I think I am going to et the 9 psi spring

MiaSSmaro98

iTrader: (9)

wats the deal with selecting the spring?how do u go by choosing the springs

ninetres

iTrader: (35)

9 spi spring huh? ****...I have an 11 in mine and the car will be done in a week.

I was told to get a spring that was too high rather than too low...and told 11 was the ticket. Hope I don't need another one.

Smearin

you dont have enough psi going through the system to open the BOV .. so it backflows through the turbo

MiaSSmaro98

iTrader: (9)

okay so then what will be the right size spring on a t70 at 5 psi

Smearin

7 or 8....

they make only one of them... i dont member which tho or maybe they make both..

MiaSSmaro98

iTrader: (9)

its a 7,9 or 11 psi

frcefed98

iTrader: (16)

Can't you just cut a coil on the 11psi spring to reduce the spring pressure?

Quick fix until you get the right one ordered?

Smearin

7 one then...

Ryan K

iTrader: (11)

I had the 11 psi spring too, I just cut mine down... Never replaced it.

frcefed98

iTrader: (16)

Yep did the cut to my 11psi spring as well, those things are expensive for what they are

ninetres

iTrader: (35)

How many inches (lengthwise) did you guys cut off? Any tricks I should be aware of when I am removing it so it doesn't fly across my garage? lol

Thanks

Smearin

Use your HULK strength!!!

Mr_president

iTrader: (38)

ninetres has been going to the gym lately! I have a baby rattler in mine to. there is no way it will open just from reving it up. im not sure what spring i have but i have a turbo xs blow off valve. ill be cutting as well, however my bov is befor the intercooler

2002ws-6

iTrader: (5)

I put a steel washer in the bottom spring seat so that the cut spring won't cut into the aluminum base. I cut one full coil off first and that was almost perfect. But I wanted it to be perfect so I cut 1/2 of the next coil off. So the spring is about 1" shorter than stock but it is sitting up 1/8" up on the steel washer.