Why don't you use a rubber 4" elbow or a 4" steel elbow from Walker? i got alot of silicone rubber from my car at hightempsilicone.com
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I have a 4" cobrahead right now, that can suck closed under boost, if i could get a 4" steel elbow to fit, it would be a smooth curve of the air to flow other then the cobra head...
the walker 90 would need fab work it is tight in there....
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Why don't you use a rubber 4" elbow or a 4" steel elbow from Walker? i got alot of silicone rubber from my car at hightempsilicone.com
During testing we managed to suck shut a 4" elbow that was a 5ply which was a little thicker then 1/4" of silicon. This was at about 9psi on a car with a 3.2" pully i belive. I think the rubber peice would do just the same. What we need is a cobra head in plastic.
Send me apic of what your running now-I can probably fab you up a steel one?
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Bro I can probably make you a steel one just like that, Have any pics of it on the car? Do you have any pics of of the one you want? I'm sure we can play American Chopper at work and fab something up-pull an allnighter like i did friday night installing my rad. Email me at abcocustom@bellnet.ca any ideas you have. My shops at your disoposal bro.
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I bought the cobra head but I haven't installed it yet. With 22 psi, I think that it'll get sucked closed pretty quickly. I was kind of bummed out when I received the cobra head... it's too flimsy. Make that thing out of plastic and we have a winner.
I bought the cobra head but I haven't installed it yet. With 22 psi, I think that it'll get sucked closed pretty quickly. I was kind of bummed out when I received the cobra head... it's too flimsy. Make that thing out of plastic and we have a winner.
Ditto...I bought the 4" inlet size and was very disappointed when I opened the box. I haven't found anything yet that works like I want it to. Everything seems to be too restrictive except for my "temporary" fix below. If someone could fab up the Cobra Hat in Aluminum that would be the ticket. I do have someone looking into that right now.
I hear there is a "Donut" out there that works for very limited, space challenged, guys like us that have decided to keep their A/C and run a fan shroud. I've kicked the bottom of my radiator/fan/condensor assembly as far forward as I can but still can't find anything I can use that doesn't restrict air flow...heres a pic of how tight everything is...tried a 4" aluminum elbow cut down with no luck, ATI's heavy, wire re-enforced duct directly off the blower (collapsed on itself under boost) so I think we all need to put our heads together and come up with a solution without killing our air flow and resulting in lower boost levels...
Ditto...I bought the 4" inlet size and was very disappointed when I opened the box. I haven't found anything yet that works like I want it to. Everything seems to be too restrictive except for my "temporary" fix below. If someone could fab up the Cobra Hat in Aluminum that would be the ticket. I do have someone looking into that right now.
I hear there is a "Donut" out there that works for very limited, space challenged, guys like us that have decided to keep their A/C and run a fan shroud. I've kicked the bottom of my radiator/fan/condensor assembly as far forward as I can but still can't find anything I can use that doesn't restrict air flow...heres a pic of how tight everything is...tried a 4" aluminum elbow cut down with no luck, ATI's heavy, wire re-enforced duct directly off the blower (collapsed on itself under boost) so I think we all need to put our heads together and come up with a solution without killing our air flow and resulting in lower boost levels...
I have an LT1 and there is a little more room than an LS1. I had a tube fabricated, but it is a little bit restrictive... 6 psi to be exact.
Just a protoype that me and Jer came up with-does the trick!
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Would an HKS Mushroom style filter fit in there ??? HKS Super Mega Flow
They dont look as if they flow that well, but there are plenty of skylines and Supras that use them to good effect.
The larger version is 8" diameter, and can be had with a variety of mouth sizes, and would be about 3" tall.
it could maybe mount directly onto the blower ?
I think we will once we get our jigs sorted out so welds come out much cleaner.
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Who can fab a 4" elbow ? 
-typical racecar 
