Wastegate adjustment screw?
 

Anyone know what the adjustment screw does on my HKS Wastegate?

adjust boost level

dur!!!

But to tighten is what and to loosen is what?

dur yourself!!!
think about it.
tighten, tense up spring, more pressure to push against spring, therefore increase boost

You the one who asked yo:p:

Rotary93, check your PM.

Thanks Josi,

I was just checking to see what other guys have done also...Ill adjust it tonight and report back.
thanks for the help
Anthony

Fustrated Now!!!

Josi,
I backed off the screw and there was no pressure on it!!
After I broke it loose it came out with my hands....No pressure on it at all!!!

Could it be my Profec B? I freaking hate this thing!@!

guess my theroy on a retarted monkey being able to install/ tune a profec b is out the window..

i thought the stepper motor was shot?
with it turned OFF you get 10 psi right?

len,

The Profec B was hooked up wrong! Actually the instuctions from Greddy were not too clear on how to hook it up to Single turbo

YEha I get 10 psi but at the upper RPMs it creeps to 14

creep with a external wg?!?!?

thats a new one..your cars pissed your only running it @ 14 psi...... its craving 17-20 ;)

From the pic in your other post, it looks like you have the same wastegate as me. The top screw does nothing in ours other than plug a hole. In one of their wastegates that screw adjusts the tension on the spring. Plug it.

You can make it adjustable by making a flat disk from 3mm Aluminium plate and making it round on a linishing machine then putting it in the top of the WG After you do this buy a long Alen head bolt and one nut and washer to lock it after you have screwed it down.

I did this to mine and find it far more accurate than a boost controler and totaly reliable.