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Guest Message by DevFuse

EA82t Crossover pipes Qs

Started by [HTi]Johnson , Mar 18 2005 12:36 AM

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5 replies to this topic

#1 [HTi]Johnson

Lifted or Rally? choices.

Members
1,510 posts

Coburg, Or.

Posted 18 March 2005 - 12:36 AM

How big is the I.D. (Inside Diameter) of a stock crossover pipe? and what would be the perfect size for a happy medium...you know...not too laggy and pretty good topend?
[HTi]Johnson

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#2 rallyruss

Subaru Master

Members
1,653 posts

San Jose CA

Posted 18 March 2005 - 01:43 AM

the narrowest point is aprox 1 1/4" right at the bend to go up to the turbo. I choped that section out and put in a 2" section. posted it back when I did it. also smoothed the ports in and out of the up pipe. runs good but then again I did the TD04 at the same time so who knows what it really did. Posted Image

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#3 [HTi]Johnson

Lifted or Rally? choices.

Members
1,510 posts

Coburg, Or.

Posted 18 March 2005 - 01:53 AM

OOOH!! Pretty turbo. I was thinking of TRYING to make an equal length crossover pipe...out of 1.5" tube of .095 wall...so that makes it likea little smaller than 1.375"(1 and 3/8th inch)
[HTi]Johnson
EDIT: Oh yeah, the reason I can't make it bigger is because of my resources...everything I have access to is for some heavy duty tube. (I work for an Ornamental Iron company:-p)

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#4 rallyruss

Subaru Master

Members
1,653 posts

San Jose CA

Posted 18 March 2005 - 01:57 AM

OOOH!! Pretty turbo. I was thinking of TRYING to make an equal length crossover pipe...out of 1.5" tube of .095 wall...so that makes it likea little smaller than 1.375"(1 and 3/8th inch)
[HTi]Johnson

that would probably work well. leave the dump into the turbo a bit small to keep speed up. I was looking at the turbo off a 1.8T VW in my garage and it has a tiny inlet but can make some real good power.

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#5 garner

Brat Master Flash

Members
689 posts

Vilas, NC

Posted 18 March 2005 - 01:20 PM

OOOH!! Pretty turbo. I was thinking of TRYING to make an equal length crossover pipe...

Equal length will be a pita unless you have a very tight mandrel bender. I build mine out of stainless weld elbows and straight pipe (from coyote steel)

check it out http://usmb.net/gall...bum290/P6160094

The pipe is 1.5 schedule 80 (i think) the id is 1 5/8 which is too big but it flows like a mo fo

If I were to do it over, I'd go for about 1 1/4 or 1 3/8. reguardless of the id the design is far superior to that pos bathroom plumbing thing they car a header.

garner