Cant seem to make up my mind on what to get ,the HKS valve is a lot smaller than the TIAL , TIAL is 50mm, any ideas on what to get.Thanks.

 

You can use a large quality BOV as a pop-off valve/safety device, I'd go with the larger of the two. My greddy Type R can be used to accurately control max boost, and i use it as a safety device, turning the EBC up, then I set the BOV for my max boost(start full loose). Then go back, and set the EBC where you want it. Carl

 

Just be warned that the HKS race BOV does not seal fully when in the closed position.


-Ted

 

Tial=awesome!! I love mine, Some slight surge under low boost/light throtle, But thats just telling you your driving to slow LOL

 

No use in getting a racing blow off valve......... My HKS super sequential works fine @ 23 psi.

 

i forgot to mention that its going on a 20b with a GT42

 

hahhaah, yeah, that engine/turbo setup definately demands a tial. It's, in my humble opinion, the best blow off valve available for the general public...absolutely does the job!