chris cdti

A quick question about duratec turbo conversions. Has anybody used the Mazda Mps engine/block instead of replacing pistons etc in a regular duratec he. I'm sure a regular head from the HE will bolt onto the mps block as its still basically the same engine. But would the mps turbo fit onto the HE head?

excursion

Why bother with the Ford version at all? The MPS engine is an HE, so just use the lot?

chris cdti

The head is a direct injection head so the intake side is different from the ford heads and intake manifolds. Injectors go in on the bottom.

excursion

Weren't the earlier prefacelift ones standard injection, or am I mistaken?

chris cdti

The engine/car that's in the unit is a 2007 car. Fas as I know all the mps units are direct injection but the next time I'm down my dads unit ill take the manifold off to double check.

excursion

Just had a look online - you're right: they all are.

The ports are totally different to a regular HE:

DI


HE:


...but, the actual flange and studs are in the same space. If you had to you could make it work by bunging the DI injection ports. If not the HE head will bolt on to the MPS block though.

chris cdti

Ok, so if the HE head was used would it be better usi g the mps cams over the HE ones

excursion

Yep, they would be ideal assuming they fit (should do, but they may have an additional drive for the DI pump)

chris cdti

The DI has a pump on the exhaust cam and the pump bolts on the side of the head (gearbox side) I have a feeling it attaches to the cam where the slot is ro time the cam up