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Making turbo manifold for ef I6 need little hand 


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Posted: Mon Apr 09, 2007 9:45 pm 
Getting Side Ways
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Age: 30

Posts: 721

Joined: 31st Dec 2005

Ride: EF V8 Futura, 180sx

Location: Brisbane, Burpengary
QLD, Australia

I'm going top mount turbo and i was going to a T4 turbo

I did plan to get the flange machined after it is welded
so i should really have any problems with the manifold flange being warped after it shaved a mil or 2 off.

Why is it a problem on fords when all them skylines, wrx's, 180, etc they all got stainless aftermarket manifold and i havn't herd of any problems with them warping than they drive there car a hell of a lot harder then me.

so you guys suggest that i use a steel flange with stainless piping?




Ford EF Futura Black
18" koya Strykers, AU engine with port and polish EB head, crow valve springs, standard cam, Large aftermarket RX7 turbo, T5 manual 3" intercooler piping, 600x300x100 intercooler core, MSII with innovate wideband O2 sensor and guage. BA F6 bodykit

Posted: Mon Apr 09, 2007 11:09 pm 
Getting Side Ways
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Age: 64

Posts: 3552

Joined: 7th Nov 2004

Gallery: 4 images

Power: 482 rwkw

Location: Penrith
NSW, Australia

Because they are made in China...
And there's 100,000,000 of them made...
To prevent warping cut slits between ports on flange plate and drill outside holes on flange bigger....



As in ZOOM 126 edition
331 Dart block,3.25/ 4340 steel crank, Oliver rods,TFS ported track heat heads, TFS track heat inlet Twin SC61 turbo's
Project 1UZ-EF has started.. S475 Turbo 4.0 V8 Mustang Celica.....

Posted: Tue Apr 10, 2007 12:53 am 
Getting Side Ways

Age: 33

Posts: 868

Joined: 23rd Sep 2005

Ride: eb falcon

Location: kadina
SA, Australia

all those cheap ebay stainless manifolds do crack up..

a properly designed, fabricated and welded THICK walled stainless manifold will outlast a mild steel one of the same wall thickness...

what wall thickness stainless have you got???

for all intents and purposes, it is easier to make a fail proof mild manifold than it is to make one in stainless, it is a lot more forgiving due to its lower thermal expansion rate...

and something im not sure if you had considered when going stainless, is the extra effort required to work stainless ie, die-grinding/cutting... it is death on die grinder burrs and cutting wheels

10 points for giving it a go, i like looking at other peoples creations.. good luck with it and be sure to post some progress pics for us



EB 4L, 8.4:1, R154, GT4202r, 4in exhaust, Greenslade Engineering exhaust manifold, plenum chamber, 90mm throttle, Garrett W2A cooler, Surecam custom, autronic SM4, Bosch 120lb, Crane HI-6, LX-92, LM-1, Turbosmart Reg, 2x bosch 044, turbosmart 48 gate. 470kw+ @ 18PSI

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