LE3 Flow Numbers!
Registered User
Joined: Mar 2003
Posts: 4,287
From: Palm City, Florida
Re: LE3 Flow Numbers!
Originally Posted by SStrokerAce
Yeah BS... If my heads really flowed that I would ship them out and pay to ship them back just for clarification. You know cause flow numbers mean everything. Those heads can move 300cfm, but not without a lot of work.... hell both Lloyd and Phil do a lot of those heads and have played with everything and don't put out 300cfm heads.
Bret
Bret
Registered User
Joined: Aug 2002
Posts: 1,509
From: Red Oak Texas
Re: LE3 Flow Numbers!
I agree, Ai was never big on flow bench racing and actually down played alot of people chasing flow #'s.
Since so many people lie about flow #'s and even if you can reach 300 cfm, how well does the head "work". I am sure it can be done but you can actually gain power by pulling some CFM from the heads and restricting the flow a lil if that makes the port more stable. Making the venturi too big and using a high lift valve job will allow this area to suck alot harder on the port and the port needs to be shaped certain ways to have this "work" right on the engine. It will almost always work as far as flow #'s go but the engine wants things MUCH more stable than a flow bench and if you cant ontrol the air or let it move where it wants and remain laminer, you will lose power.
With out welding certain areas, I cant see an LT1 casting working well at the 300 CFM mark but Larry Meaux or Dennis at AFD might have a different answer since these guys are light years ahead of me.
Heck, do not buy ANY heads because of provided flow #'s, especially if they are provided by the person selling/porting the heads. You should buy heads because you have seen results as far as how they work on similar set ups.
Lloyd Elliott
972-617-5671
Eportworks.com
Since so many people lie about flow #'s and even if you can reach 300 cfm, how well does the head "work". I am sure it can be done but you can actually gain power by pulling some CFM from the heads and restricting the flow a lil if that makes the port more stable. Making the venturi too big and using a high lift valve job will allow this area to suck alot harder on the port and the port needs to be shaped certain ways to have this "work" right on the engine. It will almost always work as far as flow #'s go but the engine wants things MUCH more stable than a flow bench and if you cant ontrol the air or let it move where it wants and remain laminer, you will lose power.
With out welding certain areas, I cant see an LT1 casting working well at the 300 CFM mark but Larry Meaux or Dennis at AFD might have a different answer since these guys are light years ahead of me.
Heck, do not buy ANY heads because of provided flow #'s, especially if they are provided by the person selling/porting the heads. You should buy heads because you have seen results as far as how they work on similar set ups.
Lloyd Elliott
972-617-5671
Eportworks.com
Registered User
Joined: Apr 2001
Posts: 971
From: Colorado
Re: LE3 Flow Numbers!
Originally Posted by A/G
I thot it was the other way around. Posts from AI I had read, have been pushing real and useable flow that translate into power, with reduced emphasis on #s.So what are they racing then? We know it isnt at the racetrack.. Besides, who wants paper thin heads
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