Cylinder Head Battle !

General engine tech -- Drag Racing to Circle Track

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Post by wesmigletz » Sun Dec 28, 2008 12:22 am

Wolfplace wrote:Tod85
Looks suspiciously like Wes's deal :wink:
Hey Mike, that would be my test. Small internet, huh? Thanks for the Morel lifters, the con rods, and the advice!!!

With regards to the test, I tried to keep it as scientific as possible within the constraints of my application. One of the constraints was a low hood clearance, thus the Team G intake, the second being I wanted a somewhat mild cam. I'm sure a bigger cam would have delivered more top end HP, but I doubt my wife would have liked the idle when she is putting arond town, fouling plugs. Finally, I am currently running an 1800-2200 stall converter, and a 3.36 gear.

Driven as tested in the baseline test, with the flat tappet cam and Team G, the car went a best of 12.77 @ 107.XX (It's gone 108.XX, but not on that pass) at Famoso on 10/26/08. With the same engine and a Weiand #8120 intake, the car went 12.79 at Famoso on 10/19/08. The car is not optimized for sure. All shifts were at 5000 RPM (with the Stock shifter left in D), and the car is trapping around 5000 - 5100 RPM.

With that said, I was looking to go quicker and wanted to try another set of heads. I jumped in the middle of a nut-swinging love fest thread on another forum, and offered to put up or shut up with my car. I had no direct affiliation with any of the head manufactures at that point in time.

I've been happy with my 1962 Camel Hump heads that Mike Stark ported, and to be honest was kinda hoping to beat the aftermarket heads with them. They did better than most expected...

Any way, the results are posted above. During the course of the test, I was impressed by the difference the HR cam made, and the numbers put-out by the AFR heads.

1972 C10
1965 Chevelle
1962 Corvette
1959 Corvette

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Post by Wolfplace » Sun Dec 28, 2008 12:54 am

Hi Wes,
Yep, I am only two places, here or TC :lol:

You are welcome, thanks for allowing us to help a bit it is appreciated & thanks to Tod85 for posting the results over here

Happy holidays from
Mike, Darlene & the Pack
Lewis Racing Engines
4axis CNC block machining

A few of the cars I have driven & owned
A tour of my shop
The Dyno
And a few pics of the gang

"Life is tough. Life is even tougher if you're stupid"
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Post by 1989TransAm » Sun Dec 28, 2008 4:20 pm

Thanks Wes for spending the time, money and effort to conduct the test. It was very interesting. :D

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Post by wrenchbender » Sun Dec 28, 2008 9:19 pm

Thanks Wes...nothing like real world testing.

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Post by Bos's5.0 » Mon Dec 29, 2008 12:10 am

This is one of those tests that does not agree with Pipemax.

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