On the buicks, i run dual solenoids with a electronic controller. I also enlarge the wastegate hole to 1.20 and change the housing puck to a 1.25". I have a solid control of14-30psi of boost +/- 1.0psi. I'm thinking these mods would apply to DSM too.
What do most of you do, go external gates? I've had experence with HKS, Turbonetic delta and race gates.
I think that most DSMs either get their internal waste gates ported, have enlarged flappers, use the Super 16G or 20G (which is basically a modified internal wastegate arrangement guaranteed not to boost creep), or go with the external route.
This usually goes with having an electronic boost controller or something that a lot of fast DSMs seem to use are ball-spring type manual boost controllers.
Sounds like you have a fast buick, what times do you run?
First pass out 11.30 at 120. The car should go 10.90 at 123 with more boost and tuning. Had a guy leave me a deposit on the car last night, so it's pretty much sold. Looking for a different project this time.
Heh, 11.3? Now that's fast . Was that with slicks? I guess since you're looking in this forum a possible project might be a DSM?
One thing that always concerned me with highpower RWD vehicles is driving in the rain. Did you have much problems with that?
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