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roverman
Art Gertz
Winchester, CA.
(3188 posts)

Registered:
04/24/2009 11:02AM

Main British Car:
74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L

Intake,Ramifications of dry/wet runners
Posted by: roverman
Date: November 26, 2010 04:21PM

I haven't seen any comparisons ,of wave densification projections between dry and wet runners.The tuned, wet runner should obtain higher densification potential,(ram tuning), but the fuel will displace "some" air compared to the dry runner. Depending on the fuel involved, intercooling should occur in the wet runner. Anyone ? roverman


hoffbug
Tony Hoffer
Minnesota
(323 posts)

Registered:
10/15/2007 05:25PM

Main British Car:
Olds 215 EFI

Re: Intake,Ramifications of dry/wet runners
Posted by: hoffbug
Date: November 27, 2010 01:07AM

Dont have an answer to your specific question..

But I do know that E-85 does require a somewhat larger runner with more volume to make up for the greater amount of air displacement compared to gasoline...

Some really cool research has been done with the new "wet" flow technology developed by Joe Mondello.. Wish I knew where to access the pertinent info...other than the changes to heads and intakes that Dart made after Maskin ordered one of the first units.


roverman
Art Gertz
Winchester, CA.
(3188 posts)

Registered:
04/24/2009 11:02AM

Main British Car:
74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L

Re: Intake,Ramifications of dry/wet runners
Posted by: roverman
Date: November 27, 2010 11:50AM

If I recall correctly, "stoich" for E85 is approx 9.7/1 ? Folks running E85, usually run 2-4deg more timing than gas at lower rpm., and then roughly parrallel to gas , on up. Since ethanol/metanol carries its own oxegen, I'm not sure wet runner needs to be proportunately larger than wet gas runner.


hoffbug
Tony Hoffer
Minnesota
(323 posts)

Registered:
10/15/2007 05:25PM

Main British Car:
Olds 215 EFI

Re: Intake,Ramifications of dry/wet runners
Posted by: hoffbug
Date: November 27, 2010 12:57PM

Friends I race with all say.. Larger runner for ethanol due to volume of fuel in suspension..


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