New project:Adapting motorcycle Throttle Bodies, this should be "interesting" :) Options

[Mueller]

The cost of aftermarket throttle bodies is way up there, the bottom of scale we have the CB Performance units which are about $250 each and the rest are easily 2X that about.....

so I swung by the motorcycle salvage yard in Fremont today and picked up these beauties (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif)

45mm at the butterfly....they taper down to 42.5mm at the bottom...

includes a nice TPS and injectors...I doubt the injectors flow enough, but who knows, I'll find out once I get the specs....

no idea of what bike they came off of yet.....price was $125

top view:

[andys]

QUOTE (Mueller @ May 24 2005, 03:31 PM)

QUOTE (andys @ May 24 2005, 03:58 PM) Mike, You might consider the stock bike manifold rubber bonded aluminum adapters. I'm willing to bet they are a two-bolt pattern type with the correct coupling for the throttle bodies. Transfer the bolt pattern to your manifolds, and you're good-to-go. You may be able to find these aftermarket as well. Andy I've looked at the intake flange you speak of.......I cannot find them used (normally sold with the motor)...and brand new they are $35.99 each.....(I'd need 4 of those puppies...ouch)

Mike,

I'll have to dig through some stuff in hope of finding an aftermarket source for the boot adapters. In my mind, I can still visualize the catalog page showing them; it's just been a lot of years since I messed with this stuff. Try Dennis Kirk, or Chaparral. That internally molded-in o-ring for the rubber boot is a must have in order to keep the throttle body from popping off, though I have seen people use a short straight section of hose with clamps....not pretty.


Andy