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I would probably try JB Weld for holding the
bearings in place. Either that or a press/interference fit in the shaft
hole in the barrel of the throttle body. As someone has stated, if the
throttle body falls off at wide open throttle, you would probably not know
it until you tried to reduce power.
I started on making my own throttle body as
well out of a 4" dia aluminum tube with 1/8" thick walls. Here are a
couple of photos of as far as I got, then found the LS1 throttle body for $30
off ebay and decided to go with it.
Looks like nice work on your intake system.
Yeah, you may indeed change it down the road. This is the third intake
system I have built, the 1st one got me flying, the second one improved the
performance considerably, and this one is hopefully will also increase
performance, but it is mainly to cut the weight of my current manifold in
half.
I looked at your webpage, nice architectual designs
- your profession I presume. Also saw photo of your RV-6, nice job.
By the way, what aircraft are you putting the 20B in? I considered putting
one in my RV-6A, but decided too much weight without a lot of airframe
modifications.
----- Original Message -----
Sent: Sunday, June 29, 2003 7:15 PM
Subject: [FlyRotary] intake pics #2,
#3
3 1/2" throttle body utilizing stock
bearings and butterfly axle (is that what they're called?). need to
figure how to attach bearings - glue, weld, liquid steel? there is
plastic inside the press fit bushings which may melt from welding, I'd rather
not disassemble them.
there it is on the
engine. imagine, I've got $500+ into that mess :-) I figure it
will get changed at some point anyways after one of you guys starts building
pretty ones. I'll have a turbo some day too, so there's lots of messing
around yet to do.
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