Originally Posted by
massivewangers
Why not use a standard Focus 1.8/2.0 inlet? They have end fed injectors?
The port spacing can't be far off, as I've seen people use the ST170 lower inlet as the basis for a ITB conversion on a silver top engine with standard head? Exhaust manifold from ST170 can also be fitted to other Zetec lumps, so port spacing can't be a million miles out for either manifold?
Just seems a funny way to go, pissing about with adaptor plates, and an inlet that is even less related to the engine, when surely a normal Zetec one can do the job.
What did Simon who used to work on PF use when his ST170 was turbocharged?
Depends on what model but Fiestas and the such don't have the room for the plastic manifolds that use end fed injectors, they bend down too much and hit the bulkhead.
The port spacing isn't miles off no, and as the ports are bigger on an ST170 manifold they tend to OK to use on normal Zetecs. However it causes problems for Zetec manifolds on ST170 heads.
Exhaust ports line up fine; it's only the inlet.
Re: The CVH inlet, yes it's true it's messing around and I wouldn't do it, but the ports line up surprisingly well and they flow quite well, but it's mainly done for the fuel rail/injector set up.
Simon used a custom inlet as not much else worked/fitted, like I did
