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I've seen one or two custom sheet metal intake manifolds for the rotary (can't remember where or whos) and was wondering what thickness aluminum is used for these? Especially under boosted conditions.
Anyone know the answer or know a fabricator who can give advice? I know the flange should be thick as hell but what about the rest of the intake plenum/runners? thanks, Owen |
[quote name='REZCAR' date='Sep 6 2005, 09:58 PM']I've seen one or two custom sheet metal intake manifolds for the rotary (can't remember where or whos) and was wondering what thickness aluminum is used for these? Especially under boosted conditions.
Anyone know the answer or know a fabricator who can give advice? I know the flange should be thick as hell but what about the rest of the intake plenum/runners? thanks, Owen [snapback]755774[/snapback] [/quote] http://www.hogansracingmanifolds.com/ Look under their catalog page 5 and they do have the prices on their price sheet. |
Originally Posted by REZCAR' date='Sep 6 2005, 08:58 PM
I've seen one or two custom sheet metal intake manifolds for the rotary (can't remember where or whos) and was wondering what thickness aluminum is used for these? Especially under boosted conditions.
You have to worry more about vacuum implosion than boost. In any event, unless you're building something huge with flat sides, it will be a non issue. If it's thick enough to get a good weld on it, it's thick enough. What you should be concerned about is supporting the weight. Depending on what you're doing, you could wind up with something bogus like having 20 inches of runner and a heavy throttle body all torquing on the block flange. Support both ends well and you could practically use rubber hose for intake runners. |
[quote name='heretic' date='Sep 7 2005, 09:19 AM']You have to worry more about vacuum implosion than boost.
In any event, unless you're building something huge with flat sides, it will be a non issue. If it's thick enough to get a good weld on it, it's thick enough. What you should be concerned about is supporting the weight. Depending on what you're doing, you could wind up with something bogus like having 20 inches of runner and a heavy throttle body all torquing on the block flange. Support both ends well and you could practically use rubber hose for intake runners. [snapback]755885[/snapback] [/quote] Vacuum implosion, huh? So the intake just collapsing in on itself? Good advice on the structurals of the whole thing. I'm gonna mess with some 1/8 aluminum and make some low profile car ramps or something, my aluminum welding needs lots of practice! Thanks Owen |
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