Larger Throttle Body
Thread Starter
Instructor
Joined: Dec 2007
Posts: 156
Likes: 0
From: Powhatan Virginia
Larger Throttle Body
I have a 96 LT-1---I'm wondering if a larger throttle body on a stock engine is worth doing--I have a hypertech programmer-170 thermostat--K&N filter--IAT relocated--magnaflow mufflers---but nothing internal to the engine---I was hoping someone would know either by before and after dyno runs or track times---from my younger days I know that a larger carb was not always better unless you were also doing cam heads headers etc.--I don't want to loose any low end response/torque and will likely at a later date be installing 1.6 rockers and springs---anyway-- opinions anyone??? Thanks in advance.
Team Owner
Joined: Oct 2004
Posts: 35,065
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From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
The consensus is that it's a waste of money...people are running as much as 500 HP on stock TBs.
I'd be wary too of re locating the IAT, take it up in the tune.
I'd be wary too of re locating the IAT, take it up in the tune.
Melting Slicks
Joined: Oct 2006
Posts: 2,241
Likes: 10
From: College Station TX
Doesn't add power.
Doesn't add power.
Adds maybe a little.
Only screws with the tune, much better ways to do that.
Adds a little.
Then you don't need a larger TB.
You don't need a larger TB. In fact, you really haven't improved performance much at all. 1.6 RR and headers would add WAY more than you've done so far.
Drifting
Joined: Mar 2008
Posts: 1,756
Likes: 0
From: Wichita KS
Bigger is Better
I installed an Edelbrock 52mm TB. The car already had long-tube headers, 4:10 gear, tune, K&N-like filter. You can feel the difference driving it with a larger TB but like others have said, wide open my engine may not register any more horsepower then it did before. I look at it like this.....The engine will grow into it
Le Mans Master
Joined: Aug 2000
Posts: 8,838
Likes: 31
From: Australia
Drifting
Joined: Mar 2008
Posts: 1,756
Likes: 0
From: Wichita KS
But....but....but it looks so cool. Surely it wasn't a mental thing where I just "thought" it had to be faster (unlike an air-foil) because it looks so much better then stock. I just went with the 52mm. I intend to do some internal mods at some point.
Look at this and tell yourself, no, it's not going to help.
Look at this and tell yourself, no, it's not going to help.
Melting Slicks
Joined: Oct 2006
Posts: 2,241
Likes: 10
From: College Station TX
But....but....but it looks so cool. Surely it wasn't a mental thing where I just "thought" it had to be faster (unlike an air-foil) because it looks so much better then stock. I just went with the 52mm. I intend to do some internal mods at some point.
Look at this and tell yourself, no, it's not going to help.
Look at this and tell yourself, no, it's not going to help.
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