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PostPosted: Sun Jan 02, 2011 5:45 am 
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Supercharged
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Joined: Sat Nov 27, 2004 8:03 pm
Posts: 9497
Location: IRWIN PA
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Thanks for Sharing Mark!


THis will bee interesting...


Greg

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PostPosted: Sun Jan 02, 2011 7:29 am 
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Poser
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Joined: Thu Nov 29, 2007 3:18 pm
Posts: 3128
Location: Indy
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Mark, how about I split the plenum on my huricane and loan it to ya for some testing? May require a larger carb then an open plenum intake and some fiddlin' with linkage. Just a thought - keep the pics coming. Thanks, Wayne.

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PostPosted: Sun Jan 02, 2011 10:56 am 
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Turbo EFI
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Joined: Wed Sep 20, 2006 7:08 pm
Posts: 1114
Location: The Hand
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Port the Hurricane intake but you will have to cut it in order to port it all the way.

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PostPosted: Sun Jan 02, 2011 11:58 am 
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Board Sponsor & Moderator
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Joined: Thu Oct 17, 2002 7:27 pm
Posts: 14493
Location: Park Forest, Illinoisy
Car Model: 68 Valiant
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We have tried all sorts of epoxied in things in Offys and Cliffords. The problem in my mind is NONE of this has been Dynoed. Just a "track" results of switching a manifold and Not retuning the carb or timing dont yield true results.
Mike Jeffrey and Doug Dutra (as well as many others) have done many, many tests with intakes and did all the required rejetting, etc. I know Mike and Blaine spent countless hours and dollars trying to find every last .1 HP they could get trying to run S/Pro at an altitude track with an N/A Slant.

A flow bench will never find the off-idle stumble that plagues a long runner style intake, and a dyno won't find a high speed lean/rich condition from using a hood scoop.

Bottom line is that while flow benches and dynos make numbers that are good for bragging rights, the ET slip will trump a dyno every time.

Not baggin' ya Frank, just don't want to see good intentions get in the way of reality. :D

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PostPosted: Sun Jan 02, 2011 1:35 pm 
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Turbo EFI

Joined: Tue Jan 06, 2004 11:21 pm
Posts: 1391
Location: long beach ca
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I agree with Zilla,steering wheel dyno works better with my car.Mark


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 Post subject:
PostPosted: Sun Jan 02, 2011 9:17 pm 
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Joined: Mon Oct 21, 2002 11:08 am
Posts: 16793
Location: Blacksburg, VA
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Great stuff, Mark. I also would love to see this car run!

I can say that my 2bbl Hurricane, to my surprise, has ZERO off idle stumble with the 500 Holley and a big cam (260 @ 0.050"). I don't recollect having a carb/intake combo that did this well off idle, and it behaves well even when cold and no choke. My motor runs out around 5400, but that is likely not the intake. Still workin' on probing that issue...

Cheers,

Lou

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