How much hp from LT headers?
07-05-2012 | 04:30 AM
#1
Thread Starter
Junior Member
Joined: Jun 2012
Posts: 15
Likes: 0
From: van nuys, ca
Car: 88 c4
Engine: 5.7 tpi
Transmission: auto
How much hp from LT headers?
Currently i just have an ebay CAI.
Looking to get a bit more hp out of the small 305 LB9...
How much would full exhaust including LT headers would net?
Is the HP gain worth the money?
Looking to get a bit more hp out of the small 305 LB9...
How much would full exhaust including LT headers would net?
Is the HP gain worth the money?
Last edited by litemupp; 07-05-2012 at 04:35 AM.
07-07-2012 | 02:21 AM
#2
Thread Starter
Junior Member
Joined: Jun 2012
Posts: 15
Likes: 0
From: van nuys, ca
Car: 88 c4
Engine: 5.7 tpi
Transmission: auto
Re: How much hp from LT headers?
dang fellas, no replies?
I suspect at least half of members on here are running some sort of aftermarket exhaust...
I suspect at least half of members on here are running some sort of aftermarket exhaust...
07-07-2012 | 12:42 PM
#3
Joined: Mar 2004
Posts: 1,626
Likes: 43
From: Manitoba
Car: '91 GTA
Engine: 421sbc
Transmission: Powerglide
Axle/Gears: Ford 9" with 3.89
Re: How much hp from LT headers?
if all you have for extra's on the car is a CAI, I would think about 10% hp gain.
07-08-2012 | 01:04 PM
#4
Joined: Jul 1999
Posts: 10,947
Likes: 21
From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
Re: How much hp from LT headers?
The ground clearance issues and installation hassles of long tubes wouldnt be worth it on a stock 305. Go with a good 3" cat-back for now, and if you really want headers, a set of shorties is fine for your power level.
07-08-2012 | 11:25 PM
#5
Joined: Jun 2003
Posts: 5,025
Likes: 76
From: Desert
Car: 1991 Z28 Vert
Engine: 383 single plane efi
Transmission: T-56
Axle/Gears: 8.8 with 3.73s
Re: How much hp from LT headers?
Dyno Don's headers at top down solutions are a shorty header with a custom Y-pipe. You won't find a set up with better ground clearance. I believe they are 1.75 inch primary as well. Depending on your budget, the price may be steep. I have hooker long tubes, I am apprehensive about speed bumps.
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