mhewitt

im new to the turbo game and am planning on boosting my ls/vtec. but i just bought a used tial wastegate n xs power bov n need to know how i can tell what spring is in it n what the difference in springs actually does

1DayIllBFast

open it up look at the color of the springs then go to their website and look what color represents what psi/bar.

mhewitt

ok thanks. now is that the psi in which the wastegate will open up at?

95skunkedgsr

do u know what a wastegate dose ??
and there is a chance your boost will "spike" with out a boost controller

1DayIllBFast

for the wastegate spring. say its a 7psi spring, that means you will be around 7psi and wont be able to go any lower can only go higher with a controller. and your BOV spring should prob be the 11psi spring if i had to guess and bov goes off of your vacuum.

mhewitt

just checked its large blue which is 14.5. im gonna run 10 psi daily and around 18psi track. so does that mean i have to get another spring that is rated around 10 psi then just use a ebc to jump it up to 18psi??

mhewitt

n so the bov will be releasing pressure at the psi level that the spring is rated at?

1DayIllBFast

tis is exactly right. with the spring you have now you wont be able to go any lower than 14psi so you will need to get a spring rated for what you want to run then use to bc to set it higher.

mhewitt

what about the bov?

95skunkedgsr

it runs off a vacum line

mhewitt

yea i know that but what doe sthe difference ni springs and psi mean with the bov? do i need that to be at the same psi spring as my wastegate?

mhewitt

bummp

mhewitt

lil more help?

1DayIllBFast

no it does not need to be the same psi as the wastegate spring. look at your vacuum gauge if you have one see what the vacuum is reading at idle and that is the spring rate that you want for your BOV.

TheShodan

iTrader: (14)

If he has an XS Power BOV, and not a TiAL, then the spring rate instructions will not apply. You will simply need to make sure that the BOV is hooked up to a good vacuum source and that the BOV is in good mechanical condition for it to work properly.

1DayIllBFast

^^oo thats right i was on the assumption that he had both tial BOV and wastegate and forgot he said xs power BOV. sorry for the wrong information OP.

good catch Shodan

mhewitt

thanks guys this info really helped me out!!!