RCM has another batch of cosworth mainfolds…

[Gripless]

https://rogerclarkmotorsport.co.uk/collections/new-products/products/cosworth-subaru-inlet-manifold

 

Not sure when these came back but they were hard to find even 5 years ago.

cheaper option than process west 

 

 

 

[Andy_Mac]

A red one would be pretty sweet. Still kinda fancy the torque solution ripoff version with the vacuum manifold on the bottom but apparently general quality is no where near as good

[Loren]

11 hours ago, Andy_Mac said:

A red one would be pretty sweet. Still kinda fancy the torque solution ripoff version with the vacuum manifold on the bottom but apparently general quality is no where near as good

 

Personally I think the vacuum block on the top is the best idea ever... my manifold has the vacuum block at the rear almost underneath

and it's a huge pain in the ass getting the hoses on.

Edited October 28, 2024 by Loren

[Gripless]

The only reason I didn’t get one originally was the top mount mounts aren’t there.

If I’d managed to get the water air sorted then I’d have fitted this.

[Andy_Mac]

6 hours ago, Loren said:

 

Personally I think the vacuum block on the top is the best idea ever... my manifold has the vacuum block at the rear almost underneath

and it's a huge pain in the ass getting the hoses on.

 

Good point actually. I'd been thinking about it purely aesthetically no practically. Plus my car will never be winning any awards for a tidy bay anyway so there’ll always be something else less appealing to worry about

 

My other hesitation is fitment. My turbo is crazy close even to the factory manifold so highly likely something like this won't even clear it

[Loren]

2 hours ago, Andy_Mac said:

 

Good point actually. I'd been thinking about it purely aesthetically no practically. Plus my car will never be winning any awards for a tidy bay anyway so there’ll always be something else less appealing to worry about

 

I think it looks ok... they are not sticking up in the air, which would look bad. The manifold in general looks way nicer than the process west unit imo.

 

2 hours ago, Andy_Mac said:

My other hesitation is fitment. My turbo is crazy close even to the factory manifold so highly likely something like this won't even clear it

It's a chunky bit of kit alright. I like how the video points out it will likely hurt performance down low and even into the mids... and only benefit big power builds up top.

[Andy_Mac]

24 minutes ago, Loren said:

 

I think it looks ok... they are not sticking up in the air, which would look bad. The manifold in general looks way nicer than the process west unit imo.

 

It's a chunky bit of kit alright. I like how the video points out it will likely hurt performance down low and even into the mids... and only benefit big power builds up top.

 

Yea bottom end is why I've never bothered with one in the past. But they work well as running reversed with AC unlike any of the other options. 

[Gripless]

https://forums.nasioc.com/forums/showthread.php?t=1774491
 

seems power is lower until 4500rpm.

But then turbos now spool faster and make more boost by 4500. Mine is 26psi by then and that’s only on the 2.0L 

 

but given cosworth are usually road/rally product the losses should be small and the gains worth it.