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408 L92 power estimates

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Old 08-12-2007, 05:47 PM
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My408 L92 combo made 776 rwhp @ 6200. D1 thru a Beck sheetmetal . Heads were out of the box with patriot gold springs.
Old 08-13-2007, 08:54 AM
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Originally Posted by RGKSR
I'm not in California, but I am a little disappointed in my 402/L92 setup.

451 RWHP/414 RWTQ. I was hoping for about 460-480 RWTQ, but I'm still working on it. I'd love to see a better intake.

Bob K.
auto or m6? on thing other than stock intake is a sheetmetal.
Old 08-13-2007, 12:37 PM
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Default M6 & 4:10's

Originally Posted by SSilverSSurfer
auto or m6? on thing other than stock intake is a sheetmetal.
The car is a M6 with 4:10's.

Bob K.
Old 08-13-2007, 07:44 PM
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Very nice numbers kcmags, i bet that thing is fun to drive. Just think what a set of worked heads would do for it.
Old 08-13-2007, 10:12 PM
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Originally Posted by RGKSR
The car is a M6 with 4:10's.

Bob K.
he had a 408 with an A4 and stock rear and gears. are you still working on the tuning?

izzy
Old 08-14-2007, 01:41 PM
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Default Yep, still working on it!

Originally Posted by SSilverSSurfer
he had a 408 with an A4 and stock rear and gears. are you still working on the tuning?

izzy
I'm getting the heads milled a little more and rechecking the coil bind on the springs.

Bob K.
Old 08-14-2007, 08:46 PM
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Originally Posted by RGKSR
I'm getting the heads milled a little more and rechecking the coil bind on the springs.

Bob K.
what kind of compression you sitting at right now? still using the MAF or speed density?
Old 08-15-2007, 06:39 AM
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Default Current Compression & Tuning

Originally Posted by SSilverSSurfer
what kind of compression you sitting at right now? still using the MAF or speed density?
SSilverSSurfer,

My compression is 10.7 and I'm using a Z06 MAF. I getting the heads milled a little more and going with .041 gaskets.

Bob K.
Old 08-15-2007, 07:24 AM
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Originally Posted by RGKSR
SSilverSSurfer,

My compression is 10.7 and I'm using a Z06 MAF. I getting the heads milled a little more and going with .041 gaskets.

Bob K.
Bob,

How far out of the hole are your pistons?
Old 08-15-2007, 09:57 AM
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Default my results

I don't mean to hijack the thread, but I just posted my L92 results from my 413 in this forum.




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