1.8 rocker question ??
Dec 4, 2003 | 10:19 PM
Thread Starter
Safety Car
Joined: Dec 2000
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From: Norman Oklahoma
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St. Jude Contributor
1.8 rocker question ??
What if any HP/TQ gains would 1.8 rockers give an LS6 ?
Dec 4, 2003 | 11:25 PM
Drifting
Joined: Aug 2002
Posts: 1,538
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From: Central MO
Re: 1.8 rocker question ?? (RPO_Z06)
Wondering what size are the stock rockers in the LS1 and what size you can change to get the most gain?
Dec 5, 2003 | 12:31 AM
Drifting
Joined: Nov 2002
Posts: 1,587
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From: Colorado Springs CO
Re: 1.8 rocker question ?? (AZGASSER)
I have read 10-20Hp but have not seen any before and after dynos to prove it.
Dec 5, 2003 | 03:56 AM
Burning Brakes
Joined: Oct 2003
Posts: 1,162
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From: Dubai
Re: 1.8 rocker question ?? (Yano)
Stock size is 1.7 . Hp increase is between 10-20 rwhp depnding on mods. BTW the actual new size is 1.85. Which set you went for ? I went with the Comp Cams 1.85 Kit.
Dec 5, 2003 | 11:34 AM
Thread Starter
Safety Car
Joined: Dec 2000
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From: Norman Oklahoma
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Re: 1.8 rocker question ?? (V8_Club)
The Comp set is what I'm looking at but I would like to see some kind of proof as to the gains before shelling out for them. :cheers:
Lets say it's a stock engine.
Dec 6, 2003 | 02:04 PM
Burning Brakes
Joined: Oct 2003
Posts: 1,162
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From: Dubai
Re: 1.8 rocker question ?? (RPO_Z06)
I don't have any Dyno Pics but the ratio increase is guaranteed to give you more power. Your are increasing lift hence power goes up. I have read in LS1/LS6 Performance Modififcation by Chris Endres that this particular mod ( However, he used SLP's ) produced 20 hp he even put dyno pics. Too bad I have no scanner. I'll try & take a photo then post here.
Dec 6, 2003 | 02:12 PM
Race Director
Joined: Oct 1999
Posts: 17,708
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From: Phila PA, Bonita Springs FL
Re: 1.8 rocker question ?? (V8_Club)
On the dyno, I got 8 hp 10 tq... on my fully bolt on LS-1 car.
Expected more, or double that.
NO STOP feel or ET at ALL!
Unless you're doing it for a little strength, with stock cam, I say its a total waste of time & money.
Please listen to me, because I didn't listen to all the others who told me not to do it.
The SLP rockers, springs, titanium retainers cost me $700 & another $500 for the install & dyno after.
I completely WASTED $1,200.00.
I have written to SLP, but so far no reply.
Anyway, my advice... DON'T DO IT! :nono:
[Modified by indypace78, 2:14 PM 12/6/2003]
Dec 6, 2003 | 03:44 PM
Thread Starter
Safety Car
Joined: Dec 2000
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From: Norman Oklahoma
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Re: 1.8 rocker question ?? (indypace78)
Quote:
On the dyno, I got 8 hp 10 tq... on my fully bolt on LS-1 car.
Expected more, or double that.
NO STOP feel or ET at ALL!
Unless you're doing it for a little strength, with stock cam, I say its a total waste of time & money.
Please listen to me, because I didn't listen to all the others who told me not to do it.
The SLP rockers, springs, titanium retainers cost me $700 & another $500 for the install & dyno after.
I completely WASTED $1,200.00.
I have written to SLP, but so far no reply.
Anyway, my advice... DON'T DO IT! :nono:
[Modified by indypace78, 2:14 PM 12/6/2003]
Thanks man ! I think I'll spend my hard earned money elswhere.
I'd do it if it would gain 15hp/10tq but less than that and I'll wait for another mod.
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Dec 6, 2003 | 04:00 PM
Race Director
Joined: Oct 1999
Posts: 17,708
Likes: 1,218
From: Phila PA, Bonita Springs FL
Re: 1.8 rocker question ?? (RPO_Z06)
You're doing the right thing..
I don't know why, but I for some reason thought my car would gain 15-18 HP maybe even more..
Man, was I wrong! :nonod:
Embarassed about it too.... :yesnod: :mad :cry
Dec 6, 2003 | 05:26 PM
Thread Starter
Safety Car
Joined: Dec 2000
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From: Norman Oklahoma
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St. Jude Contributor
Re: 1.8 rocker question ?? (indypace78)
Ellis, your making me really happy I asked questions first. :yesnod: