Hi there,

Anyone know if the inlet manifold off of an XR3i efi is the same as a fiesta efi's?

Also what about the head?

and lastly....

Any one know what standard cosworth injectors are good for bhp wise

Cheers all

Rob,

 

inlets are the same, although ACT sensors are different.
heads are the same IIRC (only erst's (S1??) had different sodium filled exhaust valves).
depends on condition really, but they fuel 200bhp fine on a cosworth(204-227bhp), probably ok to about 250bhp depending on condition, duty cycle and fuel pressure.
does depend on volumetric efficiency, turbo spec, cam etc.

 

Cheers for the reply mate. Are 701's the next size up from standard?

Rob,

 

Sorry, above regards injectors

 

If your going after market mangement then get some 480cc VXR Injectors, brand new set of 4 for around £100 and they will have a much better spray patern than worn old Cossie ones! Good for 300bhp+!

 

Karlos mate where did you get your VXR injectors from?? had a change of heart and am about to become a megasquirt distributor, the new ms3 looks pretty good,

Rob,

 

identical bar the ACT sensor. In fact the XR EFi top end is exactly the same as the turbo bar having a cam pulley that runs a bit more retard

 

Cool thats useful to know, cheers mate,

Rob,

 

I think it was from Matt Lewis Motorsport mate.

 

Good stuff,

Cheers