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Larger throttle bodies...

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Old May 7, 2006 | 08:43 PM
  #1  
Z28Quetzal's Avatar
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Joined: Jul 1999
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From: Greenville, South Carolina
Larger throttle bodies...

Guys,

I am sure you all can probably explain this to me: suppose you have a fuel injected engine, stock cam, stock computer, and headers.

Suppose you remove the smaller throttle body and replace it with something bigger. This would allow the engine to breathe better, yes?

So, given the above scenario, would the engine run like crap? Would it perform pretty decent? I have read already that an engine is an air pump. It will only 'breathe' what it needs. BUT, with the bigger throttle body it will breathe a little better at higher RPM's, right?

I realize that to get the full bang for the buck you would have to do all the other mods such as a cam and endless other things. However, am I pissing in the wind or is a bigger throttle body something that might help a 'restricted' engine?

any help would be appreciated...

thanks,
joe
Old May 7, 2006 | 09:43 PM
  #2  
my94blackz's Avatar
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Joined: Jan 2003
Posts: 1,064
From: Dobson, NC
Re: Larger throttle bodies...

I lost .5 RWHP, going from a stocker to a BBK 52MM. This was 2 consectutive pulls on a dyno.
Old May 7, 2006 | 11:02 PM
  #3  
OrbitalChris's Avatar
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Joined: Sep 2005
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From: NJ
Re: Larger throttle bodies...

yeh.....definitely get some other mods first, it wouldnt do much without them. good luck
Old May 7, 2006 | 11:19 PM
  #4  
Speed_Kills's Avatar
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From: Charleston, Sc
Re: Larger throttle bodies...

Cam, LT's, CAI, ported Intake manifold before bigger TB
Old May 8, 2006 | 01:17 AM
  #5  
Bersaglieri's Avatar
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Joined: Sep 2003
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From: The Wild West
Re: Larger throttle bodies...

Originally Posted by Speed_Kills
ported Intake manifold

I hope if your taking off the intake manifold your taking it off to port and polish the heads. The HP gain from porting the intake manifold would probably be just as unnecessary as with the TB. At least on an LT1.

-Dustin-
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