Manifold bracing - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

T_Terror · 10-03-2004, 02:35

I had a chat to the place that im planning to get my exhaust done at.

We were talking about building my turbo manifold as well, and while we were on it he was telling me how hes had guys with turbo manifolds hanging off the head without proper sealing. He rekons that building a brace from the manifold/turbo to the engine bay/engine is an important step that most turbo conversions skip.

Ive noticed a few cars in mags doin the same like Kyles EA turbo.

Wats ur opinions on this?

AU2XLSV8 · 10-03-2004, 06:06

to the engine sounds like a pretty sound idea! Not to the engine bay though. When the engine twists as you rev it this could be worse for manifold sealing. my 2c

ebxr8240 · 10-03-2004, 06:59

Yep have to be carefull as there is varying temps and expansion rates..
A strap thats reasonably flexable would be good support...
Usually a brace is welded from top of primary pipe to flange on each one..Over flange weld and 30mm down primary pipe...

T_Terror · 10-03-2004, 22:19

Yes, im not sure where i got the manifold-to-enginebay bracing idea.

Actually i mainly see a little thing that looks like a mini-shock abosorber connected from the turbo-manifold to the engine so it takes into account thermal expansion and engine rocking.

But my main question was "How important is a brace"? I havent noticed any on any of the FF members cars.

AU2XLSV8 · 10-03-2004, 23:50

If your talking BIG boost or HP then you maight look at it but not for a mild application. Or maybe if your joining a custom steel/stainless inlet to an alloy head (differing expansion). But imo for moderate/non crazy application not overly important.

ebxr8240 · 10-04-2004, 01:07

There isn't one on mine! For street its no bigdeal imo..The forged steam pipe manifolds don't need them..
I can't see a brace here???
http://www.fordforums.com/attachment...26402&viewer=1

RAPTOR · 10-04-2004, 01:20

Nice pic ebxr8240!

What manifold is that? Something NIZPRO is developing?

ebxr8240 · 10-04-2004, 01:58

Quote:

Originally Posted by RAPTOR

Nice pic ebxr8240!

What manifold is that? Something NIZPRO is developing?

Yes mate it was posted in the pub...Here's link..
http://carsguide.news.com.au/news/st...E21822,00.html

460Fairmont · 10-04-2004, 09:45

Standard XR6T has a "H" brace from the bottom 2 turbo/manifold flange bolts to the top 2 mount bracket bolts. But BAs have 5 struts on the intake and a "H" brace on the throttle body. They all reduce NVH (noise, vibration, harshness).

ebxr8240 · 10-04-2004, 10:55

Yes I have to agree about nvh.When mine idles the internal sounds from engine are transformed to turbo manifolds etc.But a brace is no big deal either way...Like its no big deal to fit one or two...