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when you say spring pressure.. I would have thought the ideal control mode for these would be a very light spring and a 4 port solenoid feeding both sides of the actuator. enough to close it when no boost is present and thats about it. You don't have exhaust manifold pressure as part of the mechanical feedback loop like a regular poppet valve does. however, the control strategy for a butterfly valve is a bit more complex than just holding a PWM value. or a % position for the e-gate. a poppet valve self regulates due to exhaust manifold pressure on the valve face, these balanced butterfly valves do not, so feeding boost to an actuator is only half of the normal wastegate control equation. you really need an exhaust manifold pressure correction on the output (either measured or simulated) to have it stable. but still, that is a lot of creep. whats the runner off the manifold look like? -
I'd be using your approach if I had the light. Some measuring, get some vernier calipers, measure, draw, make another one as a slightly smaller hole and start cutting. -
Hi guys really sorry if its a silly question, but im trying to figure out if a r33 gtr front reinforcement bar will fit on a r33 gtst series 1. Need it for road worthy but also wanted to get the gtr one as I wont need to cut the reo when I upgrade my fmic apparently? TIA!! -
For a more simple method you could look into Dakota Digital and see if their cruise control retrofit kit would work on the stag. -
In which case I still think my approach would be just as easy. In fact, easier, because of all that guidance on the front side.
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