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Old 07-30-2014, 02:10 PM   #1
Kip Fabre
 
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Cam + ARH Headers LS3 498.2 RWHP

http://ls1tech.com/forums/generation...er-street.html ^First thread with Low Lash Solid Roller No Header.
I just picked up my car from Lethal Racing. They installed my new ARH headers
and a new dyne tune. Picked up 63.7 RWHP with the new headers. While I was there Nick checked to valve lash after 1500 miles no adjustment needed. Engine HP showed 572.9 so thats about 142.9 over stock. After headers RW 498.2 HP 459.5 TQ I think that's good.
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Old 07-30-2014, 02:58 PM   #2
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63rwhp pickup with headers alone??
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Old 07-30-2014, 03:05 PM   #3
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Quote:
Originally Posted by lbheat View Post
63rwhp pickup with headers alone??
That is correct. Shawn at Lethal put it back on the dyne after the headers were installed. ARH 1 7/8 long tube no cats stock mufflers.
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Old 07-30-2014, 03:07 PM   #4
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Damn! Impressive gain!!!
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Old 07-30-2014, 04:38 PM   #5
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VERY nice wow!
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Old 07-30-2014, 05:33 PM   #6
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Nice, got me feeling even better about my new cam!
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Old 07-30-2014, 06:51 PM   #7
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Why is it that the LS3 in the Vette's tend to make just a little bit more than the LS3's in our cars? Less parasitic loss through the powertrain?
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Old 07-30-2014, 07:49 PM   #8
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That's what I'm guessing as well. My cam in a vette makes about 15 or so more whp.
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Old 07-30-2014, 07:50 PM   #9
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Still with stock airbox?
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Old 07-30-2014, 11:21 PM   #10
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very impressive gains!
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Old 07-31-2014, 05:23 PM   #11
Kip Fabre
 
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Quote:
Originally Posted by That_Guy View Post
Still with stock airbox?
No not stock it has a Callaway air box.. Only other mod is a under drive pulley.
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Old 07-31-2014, 10:44 PM   #12
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Great numbers, congrats.
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