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408 Hp guess?? anyone

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Old 12-19-2007, 05:48 PM
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Default 408 Hp guess?? anyone

I am building a 408 using a HKE 408 SB, prc cnc'd L92s, L76 intake, and a
246° 0.614" 248° 0.615" 113°+3° cam This will be in a A4 car with a 3600 stall anyone have any guesses on what the power might be. I know i left out some factors just trying to get an estimate.
Old 12-19-2007, 05:52 PM
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I'd say 500+
Old 12-19-2007, 05:57 PM
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450. Bad cam.
Old 12-19-2007, 06:51 PM
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1 rwhp Bob!

Nah, definitely into the 500s at the wheels I would think.
Old 12-19-2007, 06:54 PM
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470-490
Old 12-19-2007, 08:28 PM
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Thx for the replys all seem good the cam i used was just for an example the cam i will actually use will probably be custom since these L92 heads seem to like a different style of cam then the normal lsx.
Old 12-19-2007, 09:05 PM
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Originally Posted by 95FbFormula
Thx for the replys all seem good the cam i used was just for an example the cam i will actually use will probably be custom since these L92 heads seem to like a different style of cam then the normal lsx.

Yes, they do. They like an earlier intake valve opening/ intake center line, and longer exhaust duration/ more exhaust lift. Bigger cubes like a tighter LSA (in general).
Old 12-19-2007, 11:22 PM
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heads and cam stock bottom ends can make almost 500 so with that 408 heads and big cam you definitly should
Old 12-20-2007, 01:03 AM
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Why guess dyno numbers? You haven't said what shop's dyno you'd use, and every dyno is different. YES, even the same brand has variances. We could talk track times instead of dyno numbers. That way we talk what matters. What a concept!




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