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That should be a going combination with a 20B in an
RV-8! Yes, the old pre-pre-punch days were a pain compared to the matched
hole tooling kits of today. But, still a lot of work.
I can tell you that Tracy's EC2 EFI does NOT use a
trottle position sensor, so you are free to do what you want regarding the
throttle body. His system basically uses manifold pressure for its primary
computation element with air temp for his primary processor. Pretty basic,
but then thats all we need for the aircraft application.
Just I would certainly put in an adjustable stop,
however, there is an alternative. You can simply provide a "bleed" hole in
the throttle body and adjust how much air you let in by using a screw setting to
determine how much air you let into the manifold. Since I think you need a
throttle stop to keep the throttle plate (butterfly) from over rotating, I would
go with the adustable throttle stop for idle adjustment.
----- Original Message -----
Sent: Sunday, June 29, 2003 9:28 PM
Subject: [FlyRotary] Re: intake pics #2,
#3
I am building a -8 for the 20B, holding
on to Tracy's coattails. these new kits are SO damn easy to build in
comparison to the -6A I built 6 years ago. wings took 3 months, and I
added additional outboard fuel tanks which must have easily added a month,
heck, I had FOUR tanks to seal.
I wasn't sure how
well jb weld adheres, but then the bearings don't do a whole lot and total
failure still wouldn't be that big a problem. I ran out of the
marine-tex. that stuff seems to be pretty incredible.
So, I assume I just
need an adjustable stop to set the closure point of the throttle plate and
that's it. I hope Tracy's stuff doesn't use throttle position
info.
----- Original Message -----
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