I am going to install the turbo again on my 6port vert... I came across a SS autochrome manifold for cheap and was wondering if the stock S5 turbo will bolt up to that thing? Anone using a stock turbo on the SS autocrap manifold?

I am going to re-weld the joints on the manifold so it won't leak.... ANY thoughts?

 

They make two different types, a stock fit manifold and a T4 pattern manifold- the stock turbo will not bolt to the T4 pattern unit.

 

I can't see how an aftermarket manifold for the S5 turbo can be any better than the stock one without relocating the turbo. The size and position of the exhaust ports is fixed, the size and position of the turbine entry ports is fixed, so you're basically connecting the dots, which the stock manifold does as efficiently as can be expected. It also won't need to be rewelded...

On my S5 turbo I port-matched the manifold to the turbo, making the ports a bit wider to (hopefully) improve flow. You won't be able to do that with a tubular manifold. Just a thought.

 

They advertise it for S4 guys to ditch the twin scroll system without having to pull the flapper and plug it themselves.

 

I used one for about 3k miles. after that the flange warped like .065 and one of the welds cracked.

 

We're talking about an S5 turbo here. The S4 and S5 manifolds are completely different and not interchangeable.

 

he posted this in regards to fitment issues between the n/a LIM and the turbo as is always an issue when turboing an n/a.

SSAC only makes S4 turbo manifolds and T4 type manifolds for aftermarket turbos, as far as i know the S5 turbo is not a T4 flange so it won't bolt up to either an S4 stock or aftermarket manifold nor will it bolt to any T4 flanged manifold so your only real option is to use spacers, modify the LIM or go with a S4 turbo.

 

Besides the lack of a twin scroll flapper and equal sized turbo-side ports, whats different between the two?

 

the S5 manifold is much shorter and looks like a stump compared to the more intricate and longer/angled S4 manifold.

 

More importantly, the S5 manifold is completely divided, i.e. two seperate paths to the turbine's two scrolls.