M44/42 intake head face angle, ITB's/ turbo

[e21jps]

I want to make an ITB manifold for this engine but i need to know what angle the engine sits and also what angle the face of the head (where the intake bolts on) relative to the engine and car etc

does anyone know this info??

[wazzu70]

I believe the engine is canted 30deg. Not sure what you mean about the intake angle, mounting face is perpendicular to engine centerline.

[e21jps]

cheers 30 degrees is what i thought, same as the m5x series

The second thing i was asking is the angle of the face that bolts the manifold usually they are not actually perpendicular to the head gasket face. For example the m20 leans out 10 degrees and the m50 leans in about 30 degrees etc

I guess what im trying to ask is the angle of the manifold face relative to the ground when the engine is in the car

[wazzu70]

Yeah canted angle is the same as the M20 and M5x. Unfortunately I dont have a bare head to measure the mounting face angle with.

I would think its safe to assume its the same as M5x, but just my luck that would be one small detail thats different :)

[MX339]

I've got an M42 up on the stand right now. I'll take a look tomorrow and get back to you on the angle of the mounting face in relation to the head surface.

I've been trying to come up with a fairly economical ITB setup myself, but I don't believe a chopped stock manifold mated to motorcycle ITB's is going to be the solution (which is what I was trying to do) as the manifold is no where near as rounded as the M20's is. Have you actually cut into an M42 manifold yet?

By the way, I appreciate the articles on your site. They're very informative.

[e21jps]

I've got an M42 up on the stand right now. I'll take a look tomorrow and get back to you on the angle of the mounting face in relation to the head surface.

I've been trying to come up with a fairly economical ITB setup myself, but I don't believe a chopped stock manifold mated to motorcycle ITB's is going to be the solution (which is what I was trying to do) as the manifold is no where near as rounded as the M20's is. Have you actually cut into an M42 manifold yet?

By the way, I appreciate the articles on your site. They're very informative.

Cheers, We will be casting proper ITB manifolds to fit my ITBs and also making Turbo plenums that bot to the same manifolds. We are doing them for all m50/m54 and m20 also

The m20 only sits at 20 degrees and the head face leans out 10 degrees so the net angle is only 10 degrees from vertical as it sits in the car.

The m50 sits at 30 degrees and the manifold face leans back in another 30 odd degrees so the face is actually at about 60 degrees from vertical.

From the looks the m44/42 leans back maybe 10 degrees?? so net angle would be around 40 degrees?? but i need to know a bit more precicely, so if you can sit the head flat on the bench and find a way to measure the angle would be a great help, then i can get some prelim models done up.