Who makes the most NA RWHP with L92 heads?

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06-08-2013, 08:02 AM

texas94z

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Who makes the most NA RWHP with L92 heads?

Touched or untouched, doesn't matter. I'm just curious to see what the top percentile are making to the wheels with L92s.

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06-08-2013, 08:34 AM

Gray86hatch

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I don't dyno my stuff but mine makes 675-680 baised on the Et and MPH. This year should be 50-60 more than that.

Tim

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06-09-2013, 04:32 AM

texas94z

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Quote:

Originally Posted by Gray86hatch

I don't dyno my stuff but mine makes 675-680 baised on the Et and MPH. This year should be 50-60 more than that.

Tim

Impressive. Engine details?

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06-09-2013, 10:02 AM

Gray86hatch

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418ci
Hand ported ls3 heads. FTI cam Mast intake.
Nothing super trick just matched parts.

Tim

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06-10-2013, 02:32 PM

badassracing

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Quote:

Originally Posted by Gray86hatch

I don't dyno my stuff but mine makes 675-680 baised on the Et and MPH. This year should be 50-60 more than that.

Tim

Are those suppose to be flywheel or rwhp numbers?

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06-10-2013, 02:35 PM

Gray86hatch

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Flywheel

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06-10-2013, 04:21 PM

Alvin@PCMofNC

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Quote:

Originally Posted by texas94z

Touched or untouched, doesn't matter. I'm just curious to see what the top percentile are making to the wheels with L92s.

We've had really good luck with WCCH and AI. The best thing you can do is buy a set of LS3 valves right off the bat.

Watch the cam specs. These heads share very little in common with what the cathedral port heads like.

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06-11-2013, 07:49 AM

Stage7

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Check with Kevin WKCMD. He has a stout engine with LS3 based heads ported by WCCH I believe.

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06-11-2013, 07:59 PM

Blackpanther99

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Quote:

Originally Posted by Gray86hatch

I don't dyno my stuff but mine makes 675-680 baised on the Et and MPH. This year should be 50-60 more than that.

Tim

Thats beast!

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06-13-2013, 01:01 AM

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Quote:

Originally Posted by Gray86hatch

418ci
Hand ported ls3 heads. FTI cam Mast intake.
Nothing super trick just matched parts.

Tim

That Mast intake is an awesome piece on a 418....Nice setup!

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06-13-2013, 03:09 PM

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jlrz28

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Which intake are you guys talking about from Mast?

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06-13-2013, 03:16 PM

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Gray86hatch

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06-13-2013, 03:19 PM

#13

Gray86hatch

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06-13-2013, 03:48 PM

#14

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I'm no where near the top percentile but I'm making just over 500whp/500tq with bone stock L76 heads (only upgraded springs), stock throttle body, MAF, plastic manifold, baby cam, on a 416.

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06-13-2013, 08:47 PM

#15

litle88

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Ran outta money for slicks n skinnys but my best run was a 11.3@126.98 on 17" Nitto DR.
I dynoed on a mustang dyno at 545/525 thru a moser 9" and 4.11 spooled gears.

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06-15-2013, 07:57 PM

#16

WKMCD

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Quote:

Originally Posted by Stage7

Check with Kevin WKCMD. He has a stout engine with LS3 based heads ported by WCCH I believe.

Thanks Roberto. I am using Richard's - WCCH - Stage 3 heads. My little grocery getter made 656 on the engine dyno and 577 to the wheels. Just a small cam but pretty well optimized build. It idles at 800rpm with a chopped up FAST and a 107mm NW TB.

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06-16-2013, 12:08 AM

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m2426pma

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I have 6.0 GTO and have a intake and i believe cat back system. I want to do L92 heads with L76 intake and put long tube headers with high flow cats (I live in emissions tested Colorado) top it off with a mild cam as in HP performance mag. Has anyone done this and how is driveablilty and punch??? What HP can I expect??