Originally Posted by Snypa

Im going to take your advice on only running 6psi busa4. I looked at the stock compression and thought about blowing the engine. I dont want to do that.
What do you think about a wastegate set to open at 6psi but on the charge side?
Something like this:
http://www.ebay.com/itm/UNIVERSAL-jd...item563fd74945

Is that practical?

Or would making that acuator arm extend be good enough?


I accually found out that I can buy a 6psi acuator like this:
http://www.ebay.com/itm/160484289659...84.m1438.l2649

Should I scrap the cutting and just buy that? It will fit, and I like how it cracks at 3psi and is fully open around 7


but please, tell me if a wastegate has ever been used on the charge side. lol

Originally Posted by Snypa

I should add that I say I want to use a WG on the charge side because I cannot find another one of these with a 6psi spring...

http://www.ebay.com/itm/400267906727...84.m1438.l2649

I choose the WG idea because these^ are all 8psi release.


Side note, I found info on "WG on charge side"...I guess it is used to keep boost flowing(compressor wheel spinning freely) and closes when the driver is ready to launch in a race.
Keeping this little turbo spooled on a small setup desnt sound like a bad idea, cuts out the chance of turbo lag, when the turbo is always at 6-8psi.

Originally Posted by busa4

i think your looking for a pop off valve. a pop off valve is mainly used on a supercharger setup as a safety measure for over boost. a pop off valve will vent boost pressure over a specific spring rating in the valve.