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plumbers bends for inlet manifold?

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simon k

Post subject: plumbers bends for inlet manifold?

Posted: Mon Sep 18, 2006 1:26 pm

Yay For Hay!

Joined: Wed Sep 08, 2004 9:27 pm
Posts: 15912
Location: Wodonga - Vic/NSW border

heya all.... is it OK to use these sort of bends to make an inlet manifold - I'm going to (shut up Andy) use a pair of downdraft webers on my honda and I'm curious if they'd be OK, or I'd have rust problems.... or any other reasons not to. I really should just sort out how to weld stainless steel, but you know...

(pic courtesy of JC)

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Mokesta

Post subject:

Posted: Mon Sep 18, 2006 1:31 pm

1275cc

Joined: Sat Nov 19, 2005 1:37 pm
Posts: 2495
Location: Vegus, Brisvegus

It's ok to use those but for an intake I'd just use madrel tube bends. Much lighter and smoother surface finish. See your local truck exhaust shop for the Fleetline catalogue.

M

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9YaTaH

Post subject: Re: plumbers bends for inlet manifold?

Posted: Mon Sep 18, 2006 1:33 pm

1360cc

Joined: Sun Apr 11, 2004 11:32 am
Posts: 12390
Location: Sthrn HiLoLands, NSW, Australia

skssgn wrote:

Cheapskate :!:

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simon k

Post subject:

Posted: Mon Sep 18, 2006 1:46 pm

Yay For Hay!

Joined: Wed Sep 08, 2004 9:27 pm
Posts: 15912
Location: Wodonga - Vic/NSW border

Mokesta wrote:

It's ok to use those but for an intake I'd just use madrel tube bends. Much lighter and smoother surface finish. See your local truck exhaust shop for the Fleetline catalogue.

M

sigh... you're not meant to say that.... cos then I'd be welding thin stuff and I'd have to learn to weld properly and I'd have to get a decent mig as well as my trusty monster arc welder and my crap little gasless mig, and I might as well be using stainless mandrel bends.... see, I'm a slacker, and a cheapskate!

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cush

Post subject: Re: plumbers bends for inlet manifold?

Posted: Mon Sep 18, 2006 2:07 pm

THIS SPACE FOR RENT

Joined: Wed Jun 09, 2004 3:35 pm
Posts: 11847

skssgn wrote:

I'm curious if they'd be OK, or I'd have rust problems.... or any other reasons not to.

you want to be carefull with plumbers bends....

as the plumbers bend, you quite regularly see a crack appear....

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gzeVan

Post subject:

Posted: Mon Sep 18, 2006 2:44 pm

848cc

Joined: Mon Sep 26, 2005 4:56 pm
Posts: 461
Location: warrimoo nsw

may also be pretty heavy, and every kg adds up

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DTrain

Post subject:

Posted: Mon Sep 18, 2006 5:40 pm

998cc

Joined: Sat Jan 07, 2006 11:52 pm
Posts: 966
Location: Bald Hills, Brisbane

yep definitely watch out for plumbers crack :oops:

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Archangel007

Post subject:

Posted: Mon Sep 18, 2006 8:14 pm

1275cc

Joined: Fri Jun 17, 2005 10:31 am
Posts: 3183
Location: Burpengary, Queensland - Home of Tricky Performance Engineering

Err excuse me, but didnt we discuss EFI some time ago...........

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simon k

Post subject:

Posted: Mon Sep 18, 2006 10:03 pm

Yay For Hay!

Joined: Wed Sep 08, 2004 9:27 pm
Posts: 15912
Location: Wodonga - Vic/NSW border

Archangel007 wrote:

Err excuse me, but didnt we discuss EFI some time ago...........

that's why I said "shut up".... I just want my webers :cry:

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Archangel007

Post subject:

Posted: Tue Sep 19, 2006 6:54 am

1275cc

Joined: Fri Jun 17, 2005 10:31 am
Posts: 3183
Location: Burpengary, Queensland - Home of Tricky Performance Engineering

(grumble, grumble.......)

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cush

Post subject:

Posted: Tue Sep 19, 2006 11:05 am

THIS SPACE FOR RENT

Joined: Wed Jun 09, 2004 3:35 pm
Posts: 11847

DTrain wrote:

yep definitely watch out for plumbers crack :oops:

don't go un-subtlising my jokes now...

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Blokeinamoke

Post subject: Re: plumbers bends for inlet manifold?

Posted: Tue Sep 19, 2006 1:19 pm

1360cc

Joined: Mon Jan 16, 2006 7:59 pm
Posts: 11749

cush wrote:

skssgn wrote:

I'm curious if they'd be OK, or I'd have rust problems.... or any other reasons not to.

you want to be carefull with plumbers bends....

as the plumbers bend, you quite regularly see a crack appear....

I thought that was all behind you now.

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minstar

Post subject:

Posted: Tue Sep 19, 2006 2:01 pm

998cc

Joined: Wed Aug 18, 2004 2:41 pm
Posts: 1145
Location: ACT

Sorry couldn't resist...

Works fine. And even webbers are a damn sight lighter than a decent size turbo...

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Blokeinamoke

Post subject:

Posted: Tue Sep 19, 2006 3:49 pm

1360cc

Joined: Mon Jan 16, 2006 7:59 pm
Posts: 11749

Building my new inlet manifold

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