Modified XJ Cherokee Tech XJ (84-01)
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butterfly valves

Old Feb 20, 2012 | 11:42 AM
  #1  
99superjeep01's Avatar
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From: Buffalo, NY
Year: 2001
Model: Cherokee
Engine: 4.0
Default butterfly valves

i'd like to bore out my throttle body to a larger size and i'd only need a new butterfly valve and all i've been seeing online is companies or people that'll do the whole thing for you. does anyone know where i can get just the butterfly valve in a larger size?
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Old Feb 20, 2012 | 06:47 PM
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From: Prescott, Az
Year: 1990
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Nope. but for $90 exchange, this place can't be beat:

www.strokedjeep.com
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Old Feb 21, 2012 | 07:46 AM
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Yeah but I can machine it for free, all I need is the valve.
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Old Feb 21, 2012 | 03:51 PM
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Originally Posted by 99superjeep01
Yeah but I can machine it for free, all I need is the valve.
Contact them. Perhaps he'll sell you one. Can you slot the throttle shaft bigger also?
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Old Feb 21, 2012 | 11:14 PM
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Year: 1988
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Originally Posted by 99superjeep01
Yeah but I can machine it for free, all I need is the valve.
Why not machine the plate as well? Figure out what size you want, find some bar stock, and cut & turn the plate out. Problem solved!
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Old Feb 22, 2012 | 09:51 AM
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From: Buffalo, NY
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Yeah I probably could make it, but I haven't pulled anything apart to see how the valve is made and I figured it couldn't be too pricey for a small piece of metal so I figured I'd just buy one.
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Old Feb 22, 2012 | 11:36 AM
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From: Gads Hill, Ontario
Year: 1996
Model: Cherokee
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I bored mine out without even removing the throttle plate. Maybe I don't get the full gain of being bored out all the way through, but I like it.
Got the outlet diameter to the same as the intake manifold hole, and tapered up towards the throttle plate as far as I could reach without hitting it.
It only came out of the chuck once
Finished up by sanding by hand, to make smooth transition.
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