Gti6 Exhaust Manifold Thickness

[Rob Turbo 3]

How thick are the runners on a gti6 exhaust manifold and are they mild or stainless steel?

 

I'm going to be building a turbo manifold from one so need to know if the standard runners will be of any use or if I'll only be able to use the flange, I'm picking one up tomorrow but won't be able to cut it up until the weekend probably.

[welshpug 1,661]

stainless, and not particularly!

 

where's the turbo going to sit?

Edited March 30, 2009 by welshpug

[Rob Turbo 3]

It's going to sit above the gearbox, like the dp engineering jobbie

[Rob Turbo 3]

Picked the manifold up just now, it really isn't that thick is it!

 

Not sure if I'm going to use it anyway and see what happens, or chop it down to the flange and get some new pipe, not sure where to get the pipe from though, the only place local ish to me only does stainless and don't do it thick enough!

[Cameron 16]

Its most likely to be 16swg (1.6mm), but even if it is 18swg (1.2mm) that is still plenty thick enough even for turbo use.

[Rob Turbo 3]

Its most likely to be 16swg (1.6mm), but even if it is 18swg (1.2mm) that is still plenty thick enough even for turbo use.

 

Really? I was under the impression it needed to be fairly thick to cope with the extra heat, I've gone and ordered some 2.5mm thick bends now so might as well use it

 

Thanks anyway, I'll bear it in mind for next time.

[Cameron 16]

Jesus!!

No it doesn't really have to be any thicker unless you're running serious power! The thickest material we use at BTB is 1.6mm and we've never had any problems with primaries melting.

 

An example for you, Radical primaries (Hayabusa turbo) are 1.2mm stainless.

Edited April 5, 2009 by Cameron