Lets talk header, primary, collector sizes, exhaust guys come in
Oct 9, 2008 | 09:28 PM
#1
Thread Starter
Joined: Apr 2004
Posts: 16,820
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From: In a van DOWN BY THE RIVER
Lets talk header, primary, collector sizes, exhaust guys come in
Leave your two cents please...Whats the best route to go.. Lets get to the point. I am in the market for new headers.. What I need to know is, will a LT header with a 2.5' collector CHOKE my setup..(full bolt on 6.0, slight head work, blower) I know that a larger primary, collector will move the power band up, a small prime, collector will move it down, but to what effect.. What is the result of a larger prime size, a 2.5 collector size.. What I am getting at is should I worry about running a small collector like 2.5 or will there not be a difference between the 2.5 and 3in collector.. Thanks for any advice, info or your personal exp with this.. Or a link to who i could contact that would know
John
John
Last edited by Mangled03gmc; Oct 9, 2008 at 09:34 PM.
Oct 9, 2008 | 09:57 PM
#2
There was some good collector info in this thread, check out the link to the article in the 14th post...
https://www.performancetrucks.net/fo...d.php?t=426383
https://www.performancetrucks.net/fo...d.php?t=426383
Oct 9, 2008 | 10:35 PM
#3
Thread Starter
Joined: Apr 2004
Posts: 16,820
Likes: 2
From: In a van DOWN BY THE RIVER
Def a good read, but I am not running merge collectors, nor do the headers i am looking at have them. I guess I am asking for right out of the box will a 2.5 collector sufice for me.. i know I am a tard..
John
John
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Oct 10, 2008 | 03:32 PM
#8
Adkoonerstrator
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From: Deep in the seedy underworld of Koonerville
I don't remember what you are running right now(stock?) for exhaust manifolds but, 1 3/4" headers with 2.5" collectors will not choke your setup over stock. I think you will feel a nice increase in torque down low, cruising when you are not in boost. Also, the headers will help reduce backpressure in your exhaust and strengthen the top end.
I have had several sets of 13/4" long tube headers over the years on different LS engines and they all gained a nice SOTP feel down low/midrange over stock. With the blower ANYTHING you do to free up the exhaust will help on the topend.
I have had several sets of 13/4" long tube headers over the years on different LS engines and they all gained a nice SOTP feel down low/midrange over stock. With the blower ANYTHING you do to free up the exhaust will help on the topend.
