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  #11  
Old 03-02-2013, 11:41 PM
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Don Jones Don Jones is offline
 
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Quote:
Originally Posted by GrayHawk View Post
Also since this is on the carburetor side of the air filter, what type of epoxy was used?
I used JB Weld. I felt the temps were fairly low here, but I haven't measured it. The air box itself is laid up with West Systems...no signs of any issues so far.

Quote:
Originally Posted by David Paule View Post
When the honeycomb finally fatigues and starts coming apart, what keeps it out of the engine?

Other than that -- nice.

Dave
The only thing between it and the engine is the carb venturi, so if for some reason it suffered a catastrophic failure it could end up going through the engine. However, the material is tough stuff and extremely rigid. ( I read somewhere it's 2024 T3, but can't find the reference) Back when I was racing, I saw something similar in use on the old Preditor carburetors that became popular for a while among some drag racers. 500 CI at 8000 rpm has gotta be a lot more abusive than our Lyco's

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Originally Posted by GrayHawk View Post
Change it every condition inspection?
That's a cheap enough possibility. I only have $50 and a few hours in it.

You are exactly right, it is nothing new. I found all of the links you posted during my research. Fact is, I bet the Ellison version would be a bolt in, but for 90 bucks and the fact it's kinda crude looking, I didn't give it much thought. The honeycomb is supposed to be extremely effective at straightening the air and I felt it would work better than Ellison's.

Quote:
Originally Posted by jrs14855 View Post
A couple days ago I posted this somewhere else on the forum. Bart at Aero Sport??? in Canada has some alternative ways of dealing with this. Superior has a sump that improves mixture distribution and Bart makes some further improvements to the Superior sump. If I were to make a flow divider for the top of the air box it would be made of steel. I think the openings can be much larger than 1/8".
Another thing that allegedly works is wrapping the leanest intake pipes with insulation-cooler mixture equals richer mixture.
I considered trying the Superior sump route, however after reading about distribution issues from turbulent air entering the carb it became clear to me in order to make a manifold modification everything would have to be flowed together on a wet flow bench. The carburetor, air box, even the ram air effect would have an effect on manifold tuning. I could see using a Superior sump with Bart's mods AND using an airflow straightener together as being an awesome combination, possibly nearing fuel injection distribution, course by the time you do all that you could almost buy a fuel injection system If you want one, which I don't, but that's another story.
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Last edited by Don Jones : 03-03-2013 at 12:15 AM.
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  #12  
Old 03-02-2013, 11:58 PM
JimS JimS is offline
 
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Quote:
Another thing that allegedly works is wrapping the leanest intake pipes with insulation-cooler mixture equals richer mixture
I think you got that temp/mixture thing backwards. Think of what happens when you apply carb heat.

JimS
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  #13  
Old 03-03-2013, 12:08 AM
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Originally Posted by Fred.Stucklen View Post
So where can we purchase this material? I've been looking for this type of solution for a long time.....
I got it here
http://www.c5racer.com/catalog/c5-c6...aightener.html

Don't let the picture fool you, it's only the material, does not come with the housing.
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  #14  
Old 03-03-2013, 07:00 AM
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I notice they're selling this as a better flowing alternative to "restrictive" 1/16" honeycomb. 1/8" holes are still pretty small though. Any noticeable decrease in MP with this installed?
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  #15  
Old 03-03-2013, 07:12 AM
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Quote:
Originally Posted by Alan Carroll View Post
I notice they're selling this as a better flowing alternative to "restrictive" 1/16" honeycomb. 1/8" holes are still pretty small though. Any noticeable decrease in MP with this installed?
None at all according to the Skyview data
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  #16  
Old 03-03-2013, 07:23 AM
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LifeofReiley LifeofReiley is offline
 
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Quote:
Originally Posted by Don Jones View Post
None at all according to the Skyview data

Nice work Don, will brew one up and test with you.
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  #17  
Old 03-03-2013, 07:39 AM
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Don Jones Don Jones is offline
 
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Quote:
Originally Posted by LifeofReiley View Post
Nice work Don, will brew one up and test with you.
That would be awesome. I would love the extra feedback. I also have another prototype I made with different straightening material I am going to have a local friend try. I never tried it because I felt the honeycomb was a better choice. The material is a high temp plastic material thas has small square holes. I salvaged it from an old Bosch airflow sensor.
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Last edited by Don Jones : 03-03-2013 at 07:43 AM.
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  #18  
Old 03-03-2013, 06:40 PM
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Bugsy Bugsy is offline
 
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Default Great discussion

McMaster Carr has some honeycomb material, search honeycomb.

1/2 inch diameter holes, this is a very interesting thread, can't wait to hear how it plays out.
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  #19  
Old 03-05-2013, 04:38 PM
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Don Jones Don Jones is offline
 
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Default Screenshot

Here is a screen shot from Sunday. Now that the weather is warming up I
am having cooling issues. Working on the fix for that now Gotta get those
wheel pants and gear leg fairings on too.

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Last edited by Don Jones : 03-05-2013 at 04:48 PM.
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  #20  
Old 03-05-2013, 06:27 PM
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LifeofReiley LifeofReiley is offline
 
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Quote:
Originally Posted by Don Jones View Post
Here is a screen shot from Sunday. Now that the weather is warming up I
am having cooling issues. Working on the fix for that now Gotta get those
wheel pants and gear leg fairings on too.

This change happened after the install? Seem like you're in slow cruise mode?
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