toss the throttle body completely?
DeWitt Harrison
de at aztek-eng.com
Tue Jan 30 09:16:01 EST 2001
A fellow posted (Turbobricks) the results of a little experiment he
performed on his Bosch CIS equipped ovloV turbo motor. I thought
it was a clever thing to try though probably fraught with difficulties,
such as passing emissions testing. What says the list? What is
the basic conceptual flaw in redefining the air sensor plate to be the
throttle?
DeWitt Harrison
Boulder, CO
88 5kcstq
> I tried this today. I wired the throttle wide open. Drilled a hole in the
> top of the 90 degree hose fitting at the fuel distributor ( directly above
> the center of the sensor plate). A rod (phillips screwdriver) was slid
> through the hole until it just touched the sensor plate. Started car. Sensor
> plate became the only throttle.I had to hold the screwdriver down at idle.
> Allowing it to rise increased engine speed. There was quite a bit of force
> pushing up on the screwdriver. It took some practice but I had it acting
> like a throttle. The response seemed much better. I can't think of a reason
> why the drivers foot could not be directly tied to sensor plate. If the
> original setup could be compared to a constant velocity carburator then this
> ,perhaps, could be likened to a Holley with accelerator pump. An actuator
> (cable??) could be rigged tha allows the sensor plate to rise (open) as
> apposed to forcing it open. This would keep the mixture correct or perhaps a
> little on the rich side during acceleration.
> What am I overlooking ? Will this work?
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