What are these manifold from

[LeD ippen]

I have 2 exhaust manifold and not sure which one is which it is for ca18 is all i know and both have different angle

[Seishuku]

FWD SR20 manifolds? That's what they look like to me. lol

[themadscientist]

How do you know they are for a CA; did you try bolting them on?

[LeD ippen]

Yes I did try both of them on and they bolt fine. it just both have different angle for the turbo. the brown one looks like the more common one i see on ca.

[LeD ippen]

You can see difference in first picture and where the collector gather the brown has a big hump and angle down more.

[themadscientist]

Coud be a FWD unit. They might have to tip the turbo up away from a motor mount. It could also be from an S12. They had a different intake with no intercooler so they might have had a different exhaust manifold as well.

[Packrat182]

if that is indeed an FWD one...i could reaallly....reallllllllyyy....use that. (kn13 + ca18det + RWD mani = outlet bangs into transmission mount...)
Rat

[float_6969]

To me, the brown one looks like a RWD manifold, and the black one looks like a FWD manifold. Although, I though the FWD manifold had the collector centered, so maybe TMS is on to something with it being for an S12.

[themadscientist]

The SR20 FWD is hung in the center so there is reason to expect the CA18 might as well.

[mdb4879]

SR20's and CA18's are both "hung?" Naw, only the CA is "hung," lol.

[Packrat182]

I think madscientist is right tho...the AWD one's ive seen in person the turbo mount is moved closer to the middle. Maybe that one IS from a ca18et powered s12? Tho i personally have never seen a FWD one, i can't imagine there would be a whole lot of difference btwn AWD and FWD...
Rat

[Seishuku]

CA18ET has paired ports, no... It's a DET manifold, but I think he may have been referring to the CA18DET that came in the S12 (MK2 RSX), as it was a bit of an odd-ball CA18DET.