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Holley 68mm TB.

  #1  
Old 01-07-2009, 02:50 PM
S/C SI's Avatar
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Default Holley 68mm TB.

A friend of mine gave me a brand new 68mm throttle body from Holley. It's for my 95 D16Z6. I realize that the manifold would need to be ported to match. Is anyone here running one? Pros? Cons? Thanks.
 
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Old 01-09-2009, 12:37 PM
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Nothing?
 
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Old 01-09-2009, 09:46 PM
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Not using one, but i'm sure it'll be fine since it's a reputable name brand. But yea, IM will have to be port matched as you said.

Though, what I would do in your situation is sell the Holley throttle body and just buy a larger than stock Honda throttle body like a 60mm one, to make some cash. I've heard that 68mm is pretty unnecessary, and that ~60mm is more optimal.
 

Last edited by trustdestruction; 01-09-2009 at 09:49 PM.
  #4  
Old 01-10-2009, 08:29 AM
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Yeah the 68mm is quite a bit larger. For some reason I was thinking stock was 65ish when I took it. Even if I got a 60mm I'd still have to port the IM as it is only 56ish. I did some more reading on porting the IM. Apparently it's not a good idea to port the stocker that much as it will cause idle issues and possible vacuum leaks. If I want to use the 68mm TB I'd have to get an aftermarket IM too.
 
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Old 01-10-2009, 10:42 AM
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stock TB is 56mm (just an FYI) - I think you figured that out already though


If you end up getting an aftermarket IM, i'd go with an edelbrock performer X.
 
  #6  
Old 01-10-2009, 01:01 PM
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Yeah I read the sticky about the TB sizes. The performer X is nice. Most aftermarket IM's are 62mm so I'd still need to do some port work to take full advantage of the 68mm TB. Thanks for the help.
 
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