Hi,
Has anyone here tried a fuel pressure regulator from another car on a Sierra Cosworth?


I would imagine that once a regulator blows off at 3.5 bar it would work, providing it would physically fit!


Cheers,
Dave

 

i have a power fse/malpassi one-it worked fine and is adjustable
the weber marreli one is "more" correct for the job though

 

Thanks for that Tony, do you know what the purpose of the vacuum pipe on the regulator is? If the reg is set for 3.5 bar why would you need a pipe to the inlet?
Thanks,
Dave

 

Its a rising rate type regulator,
The fuel pressure rises at the same rate as the boost pressure
The vacuum pipe is what conects it to the inlet to match thhe boost pressure
If you swap it over then you must swap it with another 1:1 rising rate pressure regulator

 

Cheers Jamie, that makes it clearer