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WinRice WinRice is offline
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Join Date: Jun 2005
Location: Colorado
Posts: 700
Originally Posted by 911st View Post
Stepper Motor.

Yes, this is workable and it could be concealed inside the metering housing. We just need to replace the control plunger valveing with some other type of valving.

Both approaches would probably remove the metering plate, arm and the WUR. If one wanted they could just leave the WUR in place even if it is not functional.
Pull the WUR and block off the CP to the fuel head so the plunger has the most freedom (least resistance) to move. Remove the arm and plate, then drill and tap the bottom of the plunger for connection to the stepper. Then build a mount for the stepper. That would be the cheapest approach.

Now all you need is the stepper motor and the control electronics. Something open source like MegaSquirt could be adapted with a change in the source code. And it already has the basic input devices covered like MAP, IAT, RPM. We need an EE to step in!

I've had this rolling through my head for years, just never did anything with it, and don't have the EE skills to dig deep into the MegaSquirt.
1986 911 Turbo
3.3L, K27HFS, Tial 46mm, TurboKraft Intercooler, 964 Cams, Monty Muffler, MS3Pro Evo, M&W Ignition, Zietronix WBO2 Data Logger, Wevo shifter, coupler and motor mounts.
Old 09-23-2010, 11:45 AM
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