header question
Pro
Joined: May 2008
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http://www.superchevy.com/how-to/eng...-motor-part-2/
LT's added 10 hp throughout the rpm band in this test, shorties would be I guess about 1/2 that.
LT's added 10 hp throughout the rpm band in this test, shorties would be I guess about 1/2 that.
Thread Starter
Le Mans Master
Joined: Dec 2000
Posts: 5,761
Likes: 47
From: munising MI USA
I would have expected a bigger gain with the long tubes. Most say 20 hp but i guess the dyno doesnt lie. kind of suprised the heads didnt add more in that test too. Seems like the real power is in the cam.
Last edited by Lloyd Smale; Jun 15, 2014 at 05:52 AM.
Melting Slicks
Joined: Mar 2008
Posts: 2,141
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From: Santa Maria, CA
The gains realized from any swap depend on the whole build. I recently had to swap my long tubes for the stock manifolds for a smog test. The power loss from stock manifolds was definitely more than 10 Hp.
Drifting
Joined: Jul 2004
Posts: 1,354
Likes: 291
From: MA
I can say that I feel more than 10 horsepower after installing my ARH
1 3/4" headers on my LT4. I used race my old Camaro at the dragstrip in the 80's-90's and I can tell you that long tube headers give more than 10 HP!
1 3/4" headers on my LT4. I used race my old Camaro at the dragstrip in the 80's-90's and I can tell you that long tube headers give more than 10 HP!
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http://www.superchevy.com/how-to/eng...-motor-part-2/
LT's added 10 hp throughout the rpm band in this test, shorties would be I guess about 1/2 that.
LT's added 10 hp throughout the rpm band in this test, shorties would be I guess about 1/2 that.
Something got to be wrong here unless that was a main line dynoThere are old threads here stating better HP gains wit LTH..
Team Owner
Joined: Aug 2005
Posts: 34,988
Likes: 515
From: Riverside County Southern California
Co-winner 2020 C4 of the Year - Modified
2018 Corvette of Year Finalist
2017 C4 of Year
2016 C7 of Year Finalist
St. Jude Donor '09 thru '20
New headers, new hardware, new catalysts converters, to modify existing exhaust or to buy a new one, a tune, and labor co$ts unless you DIY.
Instructor
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