porting intake manifold to match throttle body
03-06-2006, 06:15 PM
#1
HELP!!! porting intake manifold to match throttle body ok so i got a stock throttle body for lt1 ported to 54mm, do i need to port out the intake manifold holes as well? (im assuming yes) how do i go about doing that, do i need to take the hole thing off cause im sure there cant be a bunch of debris in the manifold. any help or special instructions are appreciated.
Last edited by LT1MAN; 03-06-2006 at 07:46 PM.
03-06-2006, 08:56 PM
#3
Originally Posted by LT1MAN
ok so i got a stock throttle body for lt1 ported to 54mm, do i need to port out the intake manifold holes as well? (im assuming yes) how do i go about doing that, do i need to take the hole thing off cause im sure there cant be a bunch of debris in the manifold. any help or special instructions are appreciated.
Last edited by BRETTINATOR; 03-06-2006 at 10:07 PM.
03-06-2006, 10:00 PM
#6
Originally Posted by LT1MAN
ok so i got a stock throttle body for lt1 ported to 54mm, do i need to port out the intake manifold holes as well? (im assuming yes) how do i go about doing that, do i need to take the hole thing off cause im sure there cant be a bunch of debris in the manifold. any help or special instructions are appreciated.
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03-07-2006, 07:20 AM
#8
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Originally Posted by White_LightningZ
No, stock is 48mm
what i did to get my 58 to work was stick the gasket on the intake, mark it so you know what to remove, then go to town with a dremel.
03-07-2006, 05:57 PM
#11
Believe it or not, the TB change will not give you **** on a Stock LT1. There are 500ci, 500hp Chevy crate engines with 48mm stock LT1 TB's on them. I have seen before and after Dynos on a TB change, and 1hp was the gain. 1hp for $300, bad investment. Don't waste the cash....
03-08-2006, 09:05 AM
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Originally Posted by the_merv
Believe it or not, the TB change will not give you **** on a Stock LT1. There are 500ci, 500hp Chevy crate engines with 48mm stock LT1 TB's on them. I have seen before and after Dynos on a TB change, and 1hp was the gain. 1hp for $300, bad investment. Don't waste the cash....
03-08-2006, 09:32 PM
#13
"thats funny we did that on my friends car and gained 8-10 all the way up the rpm band"
Your engine is not stock, different heads and cam according to your siganture....
We put a 48, 52,and 58mm on a stock LT1, and gained 1hp on the dyno. Bad investment on a stock motor.
Your engine is not stock, different heads and cam according to your siganture....
We put a 48, 52,and 58mm on a stock LT1, and gained 1hp on the dyno. Bad investment on a stock motor.
03-09-2006, 09:09 AM
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Originally Posted by the_merv
"thats funny we did that on my friends car and gained 8-10 all the way up the rpm band"
Your engine is not stock, different heads and cam according to your siganture....
We put a 48, 52,and 58mm on a stock LT1, and gained 1hp on the dyno. Bad investment on a stock motor.
Your engine is not stock, different heads and cam according to your siganture....
We put a 48, 52,and 58mm on a stock LT1, and gained 1hp on the dyno. Bad investment on a stock motor.
