When i did my turbo swap i put in an 83 turbo motor that came out of an automatic zxt.Since then i have been reading a couple of posts stating that the automatic didn't need a blow off valve but, rather had the pop off valve.

I am running a 5 speed with my swap and just need to know if i do in fact need the blow off valve.Sorry if this sounds stupid.I am just confused.Any help would be greatly appreciated.

 

are you running stock or adding more boost?

 

Just stock for now

 

The pop-off valve functions as an emergency release valve, if pressure gets too high in the manifold it will open and release the pressure. Similar in theory to a blow off valve, but it only opens around 9psi I believe. So really this isn't going to help you like a blow-off valve will. So yes you will need a blow off valve.