:::RHMT::: Real Home Made Turbo
General Category => Fabrication => Topic started by: weirtech on March 30, 2009, 10:44:09 AM
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i'm going to be getting some 1/2" flanges soon and was just curious if anyone would be interested in them or be more inclined to buy 1/2" over my standard 3/8" thick flanges. obviously the price would be a bit more since they would be thicker, but also because they will most likely be waterjet cut instead of laser. i know a lot of people want the 1/2" so i'm stepping up to meet the demand, just want to gauge interest. they are probalby going to be around 50% more expensive than the 3/8".
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i'm going to be getting some 1/2" flanges soon and was just curious if anyone would be interested in them or be more inclined to buy 1/2" over my standard 3/8" thick flanges. obviously the price would be a bit more since they would be thicker, but also because they will most likely be waterjet cut instead of laser. i know a lot of people want the 1/2" so i'm stepping up to meet the demand, just want to gauge interest. they are probalby going to be around 50% more expensive than the 3/8".
I have an upcoming cummins project, and 1/2" would be my only choice.
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I only use 1/2 for head flanges.
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1/2", hell yeah! Might need a new intake flange from you if you're ready now. ;)
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I dont understand why people think they need 1/2" thick flanges. Unless you warp the shit out them when welding and need the extra meat to grind off.
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I dont understand why people think they need 1/2" thick flanges. Unless you warp the shit out them when welding and need the extra meat to grind off.
Well in the case of the cummins manifold I am building, @ 3/8" it will warp just under the 1800+ degrees F of egt. After all it is like a 4 ft long head.
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Is there a large space between the bolts? Another thing that would be a plus in your case would be to leave more material between the ports.
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Aaron - Most common 1/2" flanges we sell are turbo inlet/outlet flanges. We do some head flanges in 3/8 and some in 1/2 but people don't seem to care either way most of the time for those.
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I just did 2 manifolds using Weir's 3/8 head and turbo flanges - no problems for me. Is there anyway you can offer both? I think the reduced cost helps us DIY guys a lot more.
my $0.02
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oh, i'm not going to stop making the 3/8" flanges. just want to see if it will be worth while to do 1/2".
thanks for the input adam.
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All the 3/8" flanges I have used have been just fine. I would probably continue to just order the 3/8 as I dont see a need for the thicker flanges for what I am doing and dont think I could justify paying 50% more for them. my .02
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I would rather buy 1/2" flanges for my first try at migging up a manifold, would have less of a chance of warping shit.
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1/2" CnC here. Love it.
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12" CnC here. Love it.
12" or 1/2"?
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Is there a large space between the bolts? Another thing that would be a plus in your case would be to leave more material between the ports.
Well it's a 4ft head with 6 ports, so yeah there is a fair bit of space, it will be a solid flange, just cut for ports and holes. It will be milled after it is welded. Oh and this isn't my first dance. ;)
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12" CnC here. Love it.
12" or 1/2"?
Figure it out... Youcanhazcontext???
AND MY FINGERS ARE FAT
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half inch flanges seem kinda overkill, three eights look pretty beefy. i suppose if you can use half without any problems, why not? bigger is better.
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Well I know the grass is always greener, but worst case you sit on them for a while. Its not like they take up space like a manifold. I'm guess you're just hoping to get a better quantity discount on the steel (not that I blame you)?
I've used 1/4" flanges for shit before :yes:, and managed no warpage, so 1/2" is overkill at least for Hondas IMO.
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I need a set of LB7 Flanges and 1 6BT Flange :-*
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Keep in mind you might start to get some warpage with laser cutting on 1/2" flanges, there is going to be much more heat input on the material.
And a cummins head flange is like 26.5" IIRC, I still use 1/2" flanges for them though.
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My 3/8ths head flange warped on me fawk. Ground it down, warped again ...
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if you build it, they will come.
we are all cheap fucks.
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Nothing wrong trying to offer some other options
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Maybe do a group buy here
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Aaron you have a pm. :-\
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I dont understand why people think they need 1/2" thick flanges. Unless you warp the shit out them when welding and need the extra meat to grind off.
It isn't that they warp so much as looks for me. i like the looks of 1/2" and so do my customers.
aaron i talked to you about these before, nice your getting around to making the 1/2" flanges.
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Could you make iintake adaptor flanges to go from lets say a toyota head to a honda manifold?
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the only retards who think 1/2 is necessary for manifolds are honda-techers.
by the way all those sweet CNC'd 1/2" flanges are really only .450 thick because they loose .050 getting milled flat because they are made from crap hot rolled. ill stick with the 3/8 joints for 50% less :noel:
aaron just make sure they use the same steel on the 1/2". look how baller your 3/8" flanges welded tonight 8)
(https://realhomemadeturbo.com/forum/proxy.php?request=http%3A%2F%2Fi30.photobucket.com%2Falbums%2Fc320%2Fcoreyr1%2Fmani005.jpg&hash=327efac978adb414626314dd39426bb09222f788)
(https://realhomemadeturbo.com/forum/proxy.php?request=http%3A%2F%2Fi30.photobucket.com%2Falbums%2Fc320%2Fcoreyr1%2Fmani006.jpg&hash=392ac6f4ceb68bdcca2bbf417bc90c508975c264)
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Wow, that is some hot action Corey. Ill be down this weekend to pick up those flanges!
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the only retards who think 1/2 is necessary for manifolds are honda-techers.
by the way all those sweet CNC'd 1/2" flanges are really only .450 thick because they loose .050 getting milled flat because they are made from crap hot rolled. ill stick with the 3/8 joints for 50% less :noel:
aaron just make sure they use the same steel on the 1/2". look how baller your 3/8" flanges welded tonight 8)
Depends who you get them from, I mill mine from crs. I prefer milled flanges not only for aesthetics but the fact you can pocket the flange as well to help get rid of some heat. Really though, 3/8" laser cut flanges are fine.