I am sorry that i even have to post this thread, i should be able to figure out how to keep the boost down. I have the stock 15 pound spring in my apexi external wastegate, and was wondering if there was any way to run about ten pounds of boost without getting a 5 or 10 pound spring. I have searched but have not found a definative answer to the question. I have no problem in 1st gear, but when i hit 2nd the boost jumps all the way up to 15. I have a profec b hooked up and both vacuum lines coming from the wasegate to charged air into my intercooler pipe. any ideas would be great.
thanks
brad

 

if your wastegate has a 15 pound spring in it then thats as low as its going to go ! if you want less boost then the best way to get less is to buy a lower spring...

 

does anybody know where i could get a lower spring, or if i should cut the one i have now, and how much i should cut it?

 

i dunno if you should be cutting **** up on satan's car man. anyway, contact turbonetics or your wastegate manufacturer.

 

That is what spring I had in My Apex WG and everyone was telling Me that it only came in a 10 PSI. It sucks but You should be running 15 PSI anyways with that turbo and maybe a little bit more. Mine stuck shut and I boosted a nice 22 PSI once so make sure that valve guide has been changed out or was a ss one from factory. Get a new spring if You have too. I would not cut that one You will screw it up.

 

satan is a PIMP!!!!but you better not cut your wasegate spring!! buy a lower pound spring...make sure the spring is from the same manufacture!!! APEXI

 

ok, thanks guys, i will make sure to buy the 10 pound spring, i wasnt sure if cutting was going to be a good idea.
brad

 

You can run a Pop Off valve and adjust it to bleed off anything over 10 or 12 or whatever psi you want. It will only allow up to that amount of pressure to reach your intake manifold. The rest blows out into the atmosphere. Its also great for anyone who wants a safeguard against overboosting due to a failed wastegate etc. Your turbo will still be pushin 15 psi but only 10psi will get to the motor.