Exhaust manifold

For all your twin cam conversion questions and hints
YellowJA
Dorifto!
Posts: 52
Joined: Sat Jul 11, 2009 9:51 pm
Location: Melbourne

Exhaust manifold

Post by YellowJA »

Where can i get a top mount turbo manifold for the twin cam head, The VR4 one is a low mount type
OLD FART
Austarion Occupant
Posts: 3448
Joined: Sun Jun 19, 2005 1:34 pm
Location: Brisbane

Re: Exhaust manifold

Post by OLD FART »

YellowJA wrote:Where can i get a top mount turbo manifold for the twin cam head, The VR4 one is a low mount type
You may have to go custom steampipe as I have done
I've had mine since 03 07 92
85 JB 2323cc DOHC 4G63
THE OLDER I GET THE FASTER I WAS
GROWING OLD IS MANDATORY GROWING UP IS OPTIONAL
Mick
Enthusiast
Posts: 643
Joined: Sun Mar 12, 2006 1:37 pm
Location: Hobart, Tas

Post by Mick »

as oldy said, custom champ, at least then you can make it to suit the lack of space and your turbo
FS: Ford 302ci Windsor. Race prepped block, Clevite bearings, ARP fixings, Hypertectic pistons, nitrided rods, knife edged crank, Gilmer drive, chrome moly rings, Yella Terra stage 3 heads, manly valves, Comp cams 294* solid roller, YT roller rockers, Funnelweb manifold, 2 inch spacer, Proform 830cfm carb, K&N 10" stack, ICE ignition. - 0437900210
User avatar
Sargeant_Khan
Enthusiast
Posts: 673
Joined: Thu Dec 16, 2004 9:31 pm
Location: Ipswich

Post by Sargeant_Khan »

you can buy a $150 stainless off ebay, cut the pipes off as close to the plate as possible, then flip it and re weld it. Works like a charm.
:beer
Image
PIZZA DELIVERY GUY....No more
enthuzed
Austarion Occupant
Posts: 3578
Joined: Tue Apr 06, 2004 1:21 pm
Location: Melborno
Contact:

Post by enthuzed »

Got a link for that SK? I imagine it's chromed & would need rechromibg after welding. Has yours stood the test of time? Did it require extra bracing?
Got pics you could put up here please?
Reduce fuel costs by 15-20% & cut emissions by 1/3rd...
Increase engine performance & prolong engine life...
How?
Click the website button below & watch the 3 minute video.
fugazi
Enthusiast
Posts: 716
Joined: Thu Oct 02, 2008 10:30 pm
Location: Stockholm, Sweden
Contact:

Post by fugazi »

enthuzed wrote:... I imagine it's chromed...
Stainless... bracing e-bay-stuff is good! :D
Last edited by fugazi on Thu Mar 03, 2011 4:48 am, edited 1 time in total.
Image
Lummy
I love starions
Posts: 494
Joined: Sat Jun 07, 2008 9:58 am
Location: Victoria

Post by Lummy »

Here's my VR4 Top mount exhaust manifold - it was a custom job.

Works nicely, but if I had to make another, I'd design for a little more space between the dump pipe and the clutch master.

Image
enthuzed
Austarion Occupant
Posts: 3578
Joined: Tue Apr 06, 2004 1:21 pm
Location: Melborno
Contact:

Post by enthuzed »

Bit of a stupid late night comment from me fugazi. :oops:
Link to the eBay unit & pics of the install would be awesome.
Reduce fuel costs by 15-20% & cut emissions by 1/3rd...
Increase engine performance & prolong engine life...
How?
Click the website button below & watch the 3 minute video.
User avatar
Sargeant_Khan
Enthusiast
Posts: 673
Joined: Thu Dec 16, 2004 9:31 pm
Location: Ipswich

Post by Sargeant_Khan »

I dont have anypics on me. Just search it on ebay, you WILL find the one im talking about. It was off the shelf from someone who imports them in sydney, came in 3 days.

Bracing? You mean to take the weight off the turbo?
:beer
Image
PIZZA DELIVERY GUY....No more
enthuzed
Austarion Occupant
Posts: 3578
Joined: Tue Apr 06, 2004 1:21 pm
Location: Melborno
Contact:

Post by enthuzed »

I remember reading ages ago that someone bought an eBay manifold and it cracked between the tubing and the mounting plate. The turbo weight would add it's own stresses to the manifold plus the heat cycles...so yes, something el cheapo bought from eBay that stands the test of time is worth knowing about.
Reduce fuel costs by 15-20% & cut emissions by 1/3rd...
Increase engine performance & prolong engine life...
How?
Click the website button below & watch the 3 minute video.
stariontron
I like starions more
Posts: 198
Joined: Thu Jan 08, 2004 11:12 pm
Location: auckland, NZ

Post by stariontron »

enthuzed wrote:I remember reading ages ago that someone bought an eBay manifold and it cracked between the tubing and the mounting plate. The turbo weight would add it's own stresses to the manifold plus the heat cycles...so yes, something el cheapo bought from eBay that stands the test of time is worth knowing about.
ive bought 2 aftermarket stainless manifolds from trademe and they have both cracked. got a custom one made up and it is noticeably thicker and heavier than the cheap ones. should hopefully last the distance
enthuzed
Austarion Occupant
Posts: 3578
Joined: Tue Apr 06, 2004 1:21 pm
Location: Melborno
Contact:

Post by enthuzed »

Where are the failing points?
Reduce fuel costs by 15-20% & cut emissions by 1/3rd...
Increase engine performance & prolong engine life...
How?
Click the website button below & watch the 3 minute video.
stariontron
I like starions more
Posts: 198
Joined: Thu Jan 08, 2004 11:12 pm
Location: auckland, NZ

Post by stariontron »

they always crack around the flange. without fail. some people say its just the weight of the turbo, others reckon its caused by an insufficiently secured exhaust acting like a 2 meter lever on the back of it
stariontron
I like starions more
Posts: 198
Joined: Thu Jan 08, 2004 11:12 pm
Location: auckland, NZ

Post by stariontron »

ive also heard that its just thermal fatigue. apparently stainless just really isnt the right material for exhausts
enthuzed
Austarion Occupant
Posts: 3578
Joined: Tue Apr 06, 2004 1:21 pm
Location: Melborno
Contact:

Post by enthuzed »

What is? Mild steel with it's highly corrosive (well, iron oxide) properties?
Reduce fuel costs by 15-20% & cut emissions by 1/3rd...
Increase engine performance & prolong engine life...
How?
Click the website button below & watch the 3 minute video.
Post Reply

Who is online

Users browsing this forum: No registered users and 16 guests