BOV spring rate question?
BOV spring rate question?
Hey guys so i have a 1992 FD with a single turbo and large street port. I have a Tial Q 50mm BOV, at idle I'm getting a surge in RPMs and the BOV opens and closes. I took it to a Rotary shop here in Japan and he said maybe it was to soft of a spring and i should try to swap it. My question is would that do it? What spring rate should the FD with my mods have installed? 
Im not sure whats installed now i have to check it in the AM.
Im not sure whats installed now i have to check it in the AM.
Last edited by ngirondo; Jul 25, 2017 at 06:45 AM.
Joined: Jul 2010
Posts: 498
Likes: 23
From: Greensboro, North Carolina
Hey guys so i have a 1992 FD with a single turbo and large street port. I have a Tial Q 50mm BOV, at idle I'm getting a surge in RPMs and the BOV opens and closes. I took it to a Rotary shop here in Japan and he said maybe it was to soft of a spring and i should try to swap it. My question is would that do it? What spring rate should the FD with my mods have installed? Im not sure whats installed now i have to check it in the AM.
Im not sure whats installed now i have to check it in the AM.
