freeplay

i have a turbonetics deltagate with a 7psi spring.... if i want to up the boost a little, like maybe 1-2psi, can i tighten it or do i have to buy a new spring? what's the most boost i can run on a stock d16?

civperc

you can use a boost controller and up the boost that way

I recommend the Turbo XS manual boost controller. http://www.ks-motorsports.com carries them.

freeplay

and what if i don't want to buy anything yet???? can i just tighten it? and what's the most boost i can run? would 9 be safe?

civperc

to my knowledge, there's no way to adjust an external wastegate spring. the boost controller is the proper way to up the boost.

9 psi will be alright, as long as you have the car tuned very well with a standalone unit such as Hondata. there's no safe psi, people blow engines at 0 psi, it's all about using your knowledge to make more power and have a reliable set-up.

ross1459

i think you can just adjust the wastegate spring for more boost. then you dont have to run out an buy anything.

civperc

and I recommend switching that deltagate out for a TiAL 35mm instead. the deltagates are known to allow boost creep/spikes, resulting in a possibly blown engine.

freeplay

so is 7psi the most i want with my vortech fmu as the only fuel management?

Teg4e

i think you can you tighten the screw on a deltagate for more boost, but don't go over 7 psi until you're using a standalone.

freeplay

Nobody in Boise can tune Hondata, but Idaho Speed Center can tune with the GReddy or AEM systems. Would these be OK to use as standalones and boost to 10psi? Thanks!