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415 LS3 623RWHP 587RWTQ Stock Heads!!!

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Old 11-09-2010, 10:13 PM
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Just watched the vid, very impressive. What kind of trans is in there and do you think it helped put that # down because of less parasitic loss?
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Old 11-10-2010, 08:39 PM
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Bought my iron 415 from them. Very fast and were helpful in many ways! Def recommend
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Old 11-11-2010, 08:27 AM
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Originally Posted by gnx7
That torque seems impossible with this compression and displacement.

I know my buddies 440ci setup with TFS 235's put down a lot less than that.... and it was with 11.5:1 compression.

I assume they are stepped headers fully optimized for this setup as well?

Gotta love methanol and the proper cam for the application!!!
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Old 11-11-2010, 08:28 AM
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Originally Posted by stoverz28
Wow, very impressive #'s.

So what is the secret with the truck intake? Do they just work that good? I couldn't believe it pulled to 7k and never fell off!
Yep, kinda funny that the "crappy" truck stuff works!!!!
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Old 11-11-2010, 08:30 AM
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Originally Posted by stoverz28
Just watched the vid, very impressive. What kind of trans is in there and do you think it helped put that # down because of less parasitic loss?
Yes, it def. helps, but it is still going through a quick change rear end, which don't have the greatest drag numbers.

It is a Jericho trans.
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Old 11-12-2010, 04:45 AM
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This is one of the thread that makes my head goes nuts

the power level is extremly high with stock LS3 head/manifold Truck with 415ci

What will be happen if you have a 427 or 434 ci toped with a proper supporting manifold and the CNC LS3
Last edited by LS6; 11-12-2010 at 05:10 AM.
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Old 11-12-2010, 06:01 AM
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I want to see what it will do with 93, i am guessing it will be somewhere in the 520rwhp range. I just cannot see 93 making 10-20hp less than the 110 did.
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Old 11-12-2010, 10:15 AM
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Originally Posted by Gordon0652
I want to see what it will do with 93, i am guessing it will be somewhere in the 520rwhp range. I just cannot see 93 making 10-20hp less than the 110 did.
I really don't see 93 knocking it down that far, but I guess the world will never know, unless you get one and try it!!!
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Old 11-12-2010, 10:44 AM
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Show a graph with SAE correction?
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Old 11-12-2010, 11:39 AM
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Originally Posted by Gordon0652
Show a graph with SAE correction?
SAE corrected it still made 580 on race gas, it is the second graph on my original post.
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Old 11-12-2010, 12:31 PM
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580rwhp is good. I didn't realize the original numbers were non SAE. Now I don't feel too bad making 521rwhp SAE through a 4L80E with 12 bolt/4.56 gears on 91 octane.
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Old 05-27-2011, 02:33 AM
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Every time I read this one, I feel proud of LS3 engine and the capabilities
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Old 05-27-2011, 07:48 PM
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^^^^definately drunk^^^^

Bringing it back from the Internet abyss lol
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Old 05-27-2011, 09:31 PM
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If the correct numbers are 580hp that seems more like it. Remember nick williams did 570hp on pump gas with that stout 402ci..
The numbers here were so high i thought it was on an engine dyno and not in a car.
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