Small Turbo Upgrade Question

[SS8_Gohan]

so not all 14psi actuators are created equal??

[R31Nismoid]

Probably not. I can see a lot of copies having problems too...

I remember my Turbosmart 45mm ext gate had a '14psi' spring, best it ever achieved was 12psi, so we just stuck a 7psi one in there as well and it was ~17psi off the gate.

I can see other actuators possibly having similar problems in either form

[Fry_33]

so not all 14psi actuators are created equal??

I don't think it's that you just need to check what the actuator is rated at.

For example the HKS upgraded actuator for R33 is a 1430-RN006. This has a boost rating of 78.5-88.3kPa (0.8-0.9kgf/cm2) = 11.4-12.8psi. I assume this is affected further by the turbo you have, how much preload you put on the actuator rod etc. I assume this means it has something like a 12psi spring. If you need something larger then you can always contact someone like GCG and get it made to what ever you need. This way your boost controller doesn't have to 'fudge' things as much.

Saying all that, it doesn't mean the ~12psi rated wastgate won't allow you to run 14psi with a bosst controller.

Edited March 27, 2009 by Fry_33

[SS8_Gohan]

yeah, i got an HKS at the moment, 12.5psi with the boost controller off i think it was...

can they be easily tested before they're put on?