raceland 4-2-1 manifold - Saxperience

_THE_STIG_ · 9th June 2008, 23:51

how does this actually improve performance, what are the advantages of this..?

onzakieron · 9th June 2008, 23:54

Better air flow, better design. The standard Manifold is designed with budget, emmisions, noise, manufacturing costs, material availability etc in mind where as a 4-2-1 is pretty much an all out performance mod.

Anyone know that rover K type engines come with a 4-2-1 as standard? Amazing.

_THE_STIG_ · 9th June 2008, 23:57

cheers, rep'd

RCD-Performance · 10th June 2008, 09:31

Quote:

Originally Posted by onzakieron

Better air flow, better design. The standard Manifold is designed with budget, emmisions, noise, manufacturing costs, material availability etc in mind where as a 4-2-1 is pretty much an all out performance mod.

Anyone know that rover K type engines come with a 4-2-1 as standard? Amazing.

So do many engines, the toyota 3SGE for one.

SaxoAlex · 10th June 2008, 09:59

Plus in mk2's. the cat converter is in the mani. And decatting gives a relatively large improvement in performance as it is. Not to mention the better design of the 4-2-1 in comparison with the standard fanimold.

raunchz · 10th June 2008, 11:10

the vts comes as standard with a 4-2-1 manifold