ported tb or velocity stack
Thread Starter
Racer
Joined: May 2006
Posts: 431
Likes: 0
From: Houston TX
ported tb or velocity stack
i have a cam only c5 making 407rwhp with the stock ls6 intake mainfold, stock ls6 maf, stock ls6 maf and vararam. would it be worth it to port my throttle body or would i be better off with the velocity stack that i got with my vararam b2?
how much could i gain with a ported tb? v-stack?
how much could i gain with a ported tb? v-stack?
Le Mans Master
Joined: Aug 2003
Posts: 9,298
Likes: 4
From: American Canyon Lethal Injection
Originally Posted by 11sec_C5Z51
i have a cam only c5 making 407rwhp with the stock ls6 intake mainfold, stock ls6 maf, stock ls6 maf and vararam. would it be worth it to port my throttle body or would i be better off with the velocity stack that i got with my vararam b2?
how much could i gain with a ported tb? v-stack?
how much could i gain with a ported tb? v-stack?
Thread Starter
Racer
Joined: May 2006
Posts: 431
Likes: 0
From: Houston TX
Originally Posted by RstyNutz
What cam are you using? That is damn good rwhp for a cam only. Not much of a HP gain from a ported TB alone.Air intake will help to boost a HP gain.
pat. 226cam .585lift on a 112lsa A/F is at about a 13.2-13.3
would the velocity stack choke the intake?
Race Director
Joined: Mar 2005
Posts: 10,096
Likes: 17
I would sell you mine if you would like. I have used it successfully for over a year, but now I have the tools to port my own tb. $30. I can't vouch for its effectiveness, but in theory, I think it works all right.
Safety Car
Joined: Oct 2000
Posts: 4,949
Likes: 10
From: Monticello MN
Originally Posted by 11sec_C5Z51
pat. 226cam .585lift on a 112lsa A/F is at about a 13.2-13.3
would the velocity stack choke the intake?
would the velocity stack choke the intake?
Who did the dyno tune and do you have a dyno sheet you can post? Curious what torque you have. Ed
Thread Starter
Racer
Joined: May 2006
Posts: 431
Likes: 0
From: Houston TX
Originally Posted by C5XTASY
That's a tremendous amount of rwhp, with a cam of that size, for a cam only car. Who did the dyno tune and do you have a dyno sheet you can post? Curious what torque you have.
Ed
Who did the dyno tune and do you have a dyno sheet you can post? Curious what torque you have. Ed
torque was a disappointing 370rwtq
Cruising
Joined: Jul 2004
Posts: 14
Likes: 0
From: Smyrna Georgia
Originally Posted by gorillavet
Go ported and polished TB. You will not get a large amount of HP but it will really smooth out your performance. The velocity stack is right up there with the throttle body bypass
Don't think I'm sold on the stack. Ported and polished is the way to go
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