Actuator Instead Of Boost Controller

[Crans]

I meant warranty on the actuator

[LANDSCRIBBLE]

Well thanks Stao

[Mitcho_7]

just get some small washers behind one bolt (that connects the actuator to the bracket) to angle it at the wastegate arm

[dan-0]

Well I ended up putting the actuator rod in my vice grip and straightend it out to fit.

It apparently has a 11.7psi spring in it so I hooked it up and went for a spin.

WOW! My over boost issue is gone and the car pulls all the way to 11.7psi! I will install my boost gauge again double check the boost levels are ok.

Here are some pics.

Edited July 29, 2012 by dan-0

[cobrAA]

Anymore review on these actuator, I need a pair to replace the one on my HKS GT-SS. I'm boosting over 22psi and have some issues ( boost is not stable)

[R31Nismoid]

It's not the actuators causing it. It's poor installation (things like VAC leaks, lines too long etc) and/or other issues like exhaust restriction.

I ran the HKS actuators for years without a problem. Boost was perfectly stable all the time.

[cobrAA]

It's not the actuators causing it. It's poor installation (things like VAC leaks, lines too long etc) and/or other issues like exhaust restriction.

I ran the HKS actuators for years without a problem. Boost was perfectly stable all the time.

It is at 17psi but at 22psi, its not. It drop by about 1.5 psi at 7k rpm. thanks

the hks are rated at 11psi.

Edited August 10, 2012 by cobrAA

[scotty nm35]

If you don't want it to drop psi you will need to upgrade the spring tension in the actuators to your desired boost level or as close as possible.

1.5 psi isn't much of a drop though. Most people are happy with that.

[Mitcho_7]

Most internal gate turbos i have seen drop a smidge of boost up top but that could be to do with there setups/actuators.

[R31Nismoid]

It is at 17psi but at 22psi, its not. It drop by about 1.5 psi at 7k rpm. thanks

the hks are rated at 11psi.

-9s will ALWAYS drop up to 3psi by 8200rpm when running 20psi+.

You need to remember they are small turbos and come on @ 3300rpm. You cannot expect them to hold for 5000rpm of powerband as they are a response turbo, not a top end one. Usually they start falling off around 7000rpm and by 7500rpm it's time to change gears.

[FR33ZN]

so the end result for the actuator good or bad ?????

[dan-0]

so the end result for the actuator good or bad ?????

For a stock turbo GREAT. No need to worry about over boosting, boost all the way through the rev range.

The ebay company I bought it off has pretty lousy customer service. I also had to alter the actuator arm to fit.

[jet2nv]

i got the same actuator fitted to my gt3067 with a 1 bar spring OMG it feels great no over boosting or boost drop off i threw my garrett big can one in the bin lol cant go wrong with this