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Generation III Internal Engine 1997-2006 LS1 | LS6
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Am I missing something?

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Old Jan 19, 2013 | 01:39 PM
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Default Am I missing something?
The engine that I'm looking at is set up with the following:
99 LS1
LS6 intake
243 heads
Thunder cam 230/224 (.571 .563 111 LSA)
7.4 hardened pushrods
LS2 lifter trays
Patriot Extreme Gold dual valvesprings

Running through Hooker headers and a 3" exhaust it made 386 whp and 379wtq. I thought this combo would have done significantly better.

Anyone have thoughts on this?

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Old Jan 19, 2013 | 02:12 PM
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i have a feeling that it could do more HP and those cam numbers 230/224???
228/232 might have been better....
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Old Jan 19, 2013 | 02:19 PM
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Could just be a stingy dyno. I would have expected ~420whp out of a setup like that. Take it to the track and see what it traps. A H/C LS1 car should be around a 120 car.
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Old Jan 19, 2013 | 02:24 PM
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AmDWs6: I am assuming that the builder used this:
http://www.thunderracing.com/shop-by...ain/Camshafts/
The 230/224 comes with the Patriot gold springs...
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Old Jan 19, 2013 | 02:41 PM
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still don't like the numbers .. though to each their own ...
but i'm sure you could get way more hp/tq might even get higher tq.
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Old Jan 19, 2013 | 03:20 PM
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The engine is tuned?
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Old Jan 20, 2013 | 09:32 AM
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auto?

I would check those crappy valve springs and do a leak down on that engine.
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Old Jan 20, 2013 | 11:01 AM
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If it traps good at the track, then forget the dyno numbers
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Old Jan 21, 2013 | 03:31 PM
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Thanks for the responses. I'll see what else I can find out.
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Old Jan 21, 2013 | 03:51 PM
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Auto ? Are the heads ported?
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Old Jan 21, 2013 | 03:56 PM
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If it has stock haeds and maybe the exhaust/mufflers are holding it back a little, I would say that's about right.
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Old Jan 21, 2013 | 04:14 PM
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The heads are not ported, and it's a 6M. Run through Hooker headers and 3" Magnaflow.
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Old Jan 21, 2013 | 04:38 PM
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I have pretty much the same setup with a 228/232 and made 398rwhp
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Old Jan 21, 2013 | 05:01 PM
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Looks decent. Not all h/c cars are dyno queens. I wouldn't worry.
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Old Jan 21, 2013 | 07:45 PM
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OK, and I was thinking the same thing. I was thinking it might be worth an additional 10-20 hp, so it's good to hear that it's in the right ballpark.
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