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| jsup | Throttle body | ||
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Elite Guru
 
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Hey guys.....I don't think my stock TB is going to be sufficient with the 427.
Any suggestions as to size and brand? Thanks |
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Posted on: 2008/8/9 1:07
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Parts don't make power, engines make power. |
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| c4-zo7-91 | Re: Throttle body | ||
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Senior Guru
 
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hey jon,
how come,you dont want to reply to my 8 t/b intake thread and pm i sent you ?? surely you have seen my thread with your name on it and read your pm,two i sent you?? first you talk about a 8 t/b intake up grade and now you are talking about a twin t/b upgrade!! what do you want?? i dont under stand you..... or is it me you just dont want to reply too?? glen  :well: |
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Posted on: 2008/8/9 1:13
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| jsup | Re: Throttle body | ||
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Elite Guru
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Quote:
Sorry man NO, I'm going with the MR for now because it's in the budget. I would love to go to your platform, but it's far more expensive. That's my end game...not immediate. |
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Posted on: 2008/8/9 1:27
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Parts don't make power, engines make power. |
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| bogus | Re: Throttle body | ||
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Grand Imperial Pooh-Bah
 
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58mm is what you need for that monster.
no question. |
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Posted on: 2008/8/9 2:01
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The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
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| jsup | Re: Throttle body | ||
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Elite Guru
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Quote:
Brand? |
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Posted on: 2008/8/9 2:11
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Parts don't make power, engines make power. |
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| bogus | Re: Throttle body | ||
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Grand Imperial Pooh-Bah
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I have read good things about the Professional Products line.
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Posted on: 2008/8/9 4:03
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The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
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| CentralCoaster | Re: Throttle body | ||
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Senior Guru
 
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Those are chinese copies of the BBK. I have one, seems fine.
Doesn't fit the stock accordian duct though, and that's why its still on the bench. |
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Posted on: 2008/8/9 7:28
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1985 Z51, ZF6 |
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| biggrizzly | Re: Throttle body | ||
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2011 Memorial Day Car Show Winner!
 
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Jon,
I bought the Profesional Products 58mm. I haven't had the opportunity to actually test it in action yet but from appearance alone it seems to be a quality part. The finish is nice and if I recall it fits my stock late C4 intake duct. I'll check on that for you. Attach file:  TB01.jpg (176.69 KB) TB02.jpg (197.22 KB) TB03.jpg (175.70 KB) TB04.jpg (196.48 KB) TB05.jpg (149.94 KB) |
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Posted on: 2008/8/9 11:12
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Don Haller Corvette Club of America 94Coupe, 383Stroka, PeteK Trans, 3000stall, 3.54rear, Konis and bigger sways. |
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| anesthes | Re: Throttle body | ||
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Master Guru
 
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Quote:
I'm selling my miniram and 58mm throttle body soon if you have not purchased yet. Not sure what your timeline is though. -- Joe |
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Posted on: 2008/8/10 2:31
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| jsup | Re: Throttle body | ||
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Elite Guru
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COOL. PM me let me know how much.
Interested. how old, and in what shape is it in? is the TB set up for the 1990 linkage? Fuel rails and all? Timeline is a week. |
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Posted on: 2008/8/11 1:25
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Parts don't make power, engines make power. |
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| SpectatorRacing | Re: Throttle body | ||
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Elite Guru
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Don, you need an airfoil in that thing!
Careful with the "bigger is better" approach to the TB. Granted, a 427 is much bigger than the 383 I have, but I'm feeling more power with the stock 48 mm than the 52 mm TB I bought for my conversion two years ago. Dyno results on Friday will confirm what happened... Odd...I'm thinking more torque less HP with the OE piece. |
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Posted on: 2008/8/11 18:34
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aka Scaryfast |
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| CentralCoaster | Re: Throttle body | ||
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Senior Guru
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I don't think a smaller throttle body at WOT is any different than a larger one at 80% throttle. (Whether your engine can draw enough air through it to lose any measureable amount of power, is another story.)
IMO, anything upstream of the plenum is just a restriction to HP and torque. There are no wave tuning effects to take advantage of. |
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Posted on: 2008/8/11 19:19
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1985 Z51, ZF6 |
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| MK 82 | Re: Throttle body | ||
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Senior Guru
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I have the polished Professional Products 52 MM on mt LT4 and am happy with it.
One drawback is that the top plate gasket is non standard and not available. I think the limiting factor on getting more air may be the plumbing upstream of the TB. [IMG]http://i244.photobucket.com/albums/gg8/LT496/DSC01486-1.jpg[/IMG] |
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Posted on: 2008/8/13 16:34
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96 CE Roadster LT4 |
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