Well I am going to be ordering a Tial Q Blow off valve and am not too sure what spring to get with it. I know they have the vacuum at idle chart, but I've heard that doesn't work with everyone. My mods are stock 9 turbo at 28psi on e-85. Going to be running it with stocl MAF also. SD in the future. Any recommendations? Thanks.

 

what is your vacuum at idle

 

-22

 

All the info you need right here

http://www.tialmedia.com/documents/w3_tial_bovq_sp.pdf

 

Yeah I read that but was searching an saw some people went through a few different springs before they got it right. Thanks anyways.