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573 hp from an LS2 small-block with a cam, heads and intake.

 
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SMOKEmUP
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1979 Chevrolet Camaro

PostPosted: Tue Oct 17, 2006 9:48 pm    Post subject: 573 hp from an LS2 small-block with a cam, heads and intake. Reply with quote

Check this article out that popular hot rodding did on an LS2.

Get 573 hp from an LS2 small-block with a cam, heads and intake.
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clay
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1972 Chevrolet Nova

PostPosted: Wed Oct 18, 2006 4:19 am    Post subject: Reply with quote

Saw it and read it about 3 times - very impressive. I'll have to come back with a Hot Rod article covering Steve Morrison and his blow through pump gas motors. So far he has one up to 1740 h.p. on 93 octane Shocked - that's what I'm talking about. Clay
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Paul P
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1971 Chevrolet Chevelle

PostPosted: Wed Oct 18, 2006 8:12 am    Post subject: Reply with quote

I read that yesterday Clay that wagon is one sick behemoth!
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GrandSportC3
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1968 Chevrolet Corvette

PostPosted: Wed Oct 18, 2006 12:08 pm    Post subject: Reply with quote

Hmmm.. My Vette has a LS2.. Maybe I should think about H&C Very Happy
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SMOKEmUP
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1979 Chevrolet Camaro

PostPosted: Wed Oct 18, 2006 1:24 pm    Post subject: Reply with quote

For your car I wouldn't by a new set of heads. I would send the 243's you have out and get them ported by TEA. The CNC job was relatively cheap and they flow better than the AFR 205's.

Or you could go the L92/L76 route:
The problem with the LS1,2,6 is the intake manifold. GM has made major improvements with the new L92 heads / L76 intake manifold. As a combination they flow about 30 - 40 cfm over a ported Fast 90/90 and aftermarket heads. You have to run offset rockers but the cost isn't too crazy.

GM L76 intake manifold kit (with throttle body, injectors, fuel rail) $500.
L92 heads (bare) $350 Pair.
Offset rockers (GM): $160 set.
Springs Retainers Seals: $150 - $400 (depending on cam)
Pushrods: $125
Cam: $400
Exhaust upgrade: $1500
HPtuners Pro: $600
Wideband O2: LC1 $200

For around $4500 +/- you should be able to make close to 600HP running on 93 octane.
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SMOKEmUP
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1979 Chevrolet Camaro

PostPosted: Wed Oct 18, 2006 1:36 pm    Post subject: Reply with quote

Sorry for the double post but another option is to drop a crate LS7 in.

The crate motor is $13,000. Figure $2,000 in swap costs. Then sell the LS2 for about $4000. Net cost of around $11000 for an LS7 convertible. With only headers they put down close to 500 RWHP.
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gary67ss
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PostPosted: Wed Oct 18, 2006 6:01 pm    Post subject: Reply with quote

just wondering smokem who is tea ?
i want to get my gen 1 alum heads worked over
thanks
gary
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SMOKEmUP
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1979 Chevrolet Camaro

PostPosted: Wed Oct 18, 2006 10:18 pm    Post subject: Reply with quote

TEA is short for Total Engine Airflow.
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GrandSportC3
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1968 Chevrolet Corvette

PostPosted: Thu Oct 19, 2006 6:40 am    Post subject: Reply with quote

Well, for now I can't really do too much work on the engine as I'm still under warranty (until 4/25/08 ) and heads and cam would void the warranty (I assume)
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zo6vetteman2003
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PostPosted: Fri Nov 03, 2006 10:40 pm    Post subject: Reply with quote

I read it too. That cam was pretty small for that kind of output.
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03' Corvette ZO6, Vararam Widemouth intake, Carbon Fiber Powerduct, LSX FAST 90 Intake and Ported and Polished LS2 90mm throttlebody, 36# Fuel injectors, Kooks 1-7/8" LT's 3" X pipe, Borla Stingers, Comp Cam XR281HR (228/230 Dura.) 112 degree lsa. Stage 1 215cc/80cc 62cc combustion chamber LS6 heads ported and polished to Stage 2. Crane 1.8 Gold Race Rockers. Nitto 555RII's, SPEC Stage 3+ clutch.
Tuning by Slowhawk DEZ Racing Seekonk, Ma.
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SMOKEmUP
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1979 Chevrolet Camaro

PostPosted: Sat Nov 04, 2006 12:40 am    Post subject: Reply with quote

zo6vetteman2003 wrote:
I read it too. That cam was pretty small for that kind of output.

Have you dyno'd your combo? How much does it make? What does it run at the track?
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zo6vetteman2003
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PostPosted: Sun Nov 05, 2006 7:35 pm    Post subject: Reply with quote

I dynoed it recently at DEZ on Sunday 10/2//06. It made SAE 444rwhp/408rwt with a rich 12.0:1 A/F. I have a bottom feeder ram air setup and DEZ has a weak fan on their Mustang dyno. We tried leaning it out some, but she stayed rich. On the open road I get the air I need, so we put the fuel back in. Haven't been to the track this year.
_________________
03' Corvette ZO6, Vararam Widemouth intake, Carbon Fiber Powerduct, LSX FAST 90 Intake and Ported and Polished LS2 90mm throttlebody, 36# Fuel injectors, Kooks 1-7/8" LT's 3" X pipe, Borla Stingers, Comp Cam XR281HR (228/230 Dura.) 112 degree lsa. Stage 1 215cc/80cc 62cc combustion chamber LS6 heads ported and polished to Stage 2. Crane 1.8 Gold Race Rockers. Nitto 555RII's, SPEC Stage 3+ clutch.
Tuning by Slowhawk DEZ Racing Seekonk, Ma.
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hsutton
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PostPosted: Sun Feb 21, 2010 7:06 pm    Post subject: Reply with quote

clay wrote:
Saw it and read it about 3 times - very impressive. I'll have to come back with a Hot Rod article covering Steve Morrison and his blow through pump gas motors. So far he has one up to 1740 h.p. on 93 octane Shocked - that's what I'm talking about. Clay
The man's name is Steve Morris, not Morrison.
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hsutton
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PostPosted: Sun Feb 21, 2010 7:07 pm    Post subject: Reply with quote

clay wrote:
Saw it and read it about 3 times - very impressive. I'll have to come back with a Hot Rod article covering Steve Morrison and his blow through pump gas motors. So far he has one up to 1740 h.p. on 93 octane Shocked - that's what I'm talking about. Clay
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clay
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1972 Chevrolet Nova

PostPosted: Sun Feb 21, 2010 11:52 pm    Post subject: Reply with quote

Oops, you're right, my bad on the name. Clay
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