Right, Iv had a ZVH built with EFI and Cosworth management. Should i be changing my fuel pump to a cosworth 1 or a higher pressure unit? Any help????

 

think its the 3dr cossie pump thats a direct fit


sure someone will correct me

 

Can any1 else shed any light???

 

If its healthy and your not looking for mega power there really isn't any need mate

Rob,

 

it all depends on how much power you're running, or more importantly your fuel requirements.
get it on the rollers and see if it can cope.
mine did fine on my zvh for a bit till i upgraded injectors to 630cc ones and whacked the boost up to 23psi, so i changed to a 979 pump just in case before i did the later, only flows 165litres per min or something like that, but better than the 4wd cossie pump which only did 130litres per hour.

 

Its started to make a loud buzzing sound as if the pump is empty but its not?????? Any one else had this?

 

if it starst gettign really noisey then replace it, it's only a matter of time, i keep my old rs turbo pump just in case.

 

I think im goin get a 204 lph one. that shoud be ok for what i want.