Porting the throttle body
Thread Starter
Race Director
Joined: Sep 1999
Posts: 12,437
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From: CONCORD NC
Porting the throttle body
I notice the TB in the LS2 has a very steep change from the inlet area, to where it goes "straight" into the blades. I have a spare (from the WC car), and was thinking of blending this area.
Since the TB is really HUGE compared to the LS1/LS6, I wonder if it is worth the trouble.
Any thoughts?
Since the TB is really HUGE compared to the LS1/LS6, I wonder if it is worth the trouble.
Any thoughts?
Tech Contributor
Joined: Mar 2003
Posts: 12,094
Likes: 197
From: Colorado Springs, CO
St. Jude Donor '08-'09-'10-'11
I was going to take it a step further and cut a bigger blade on the milling machine. I would then open up the entire thing to the new size blade and blend. The air is already metered so it is a good move.
The thing that really bothered me on the C5 TB that I got rid of was the front edge that is in the path of airflow so I sharpened that to a dull point.
I'll be doing this free one myself. My calipers show it being 94mm when done. The bottle neck is still the MAF and will require a SD tune but weather up will require seasonal retunes.
The thing that really bothered me on the C5 TB that I got rid of was the front edge that is in the path of airflow so I sharpened that to a dull point.
I'll be doing this free one myself. My calipers show it being 94mm when done. The bottle neck is still the MAF and will require a SD tune but weather up will require seasonal retunes.
Safety Car
Joined: Dec 2004
Posts: 3,565
Likes: 5
From: stafford country, va. Avatar: Me on turn 3 @ Bristol (The World's Fastest Half-Mile)
Originally Posted by SpinMonster
... The bottle neck is still the MAF and will require a SD tune but weather up will require seasonal retunes.
what alignment position do you run your maf ? are you rotating it to align the diffusor in the maf with the trottle body bf ?
