Hi there,a couple of questions here
I currently have 800cc injectors in and a rcm 340 fuel pump,running syvecs on my 2.1.
if change the injectors to a 1000cc would it need a ramp?
Also if I changed the fuel pump to welbro bigger pump(Still keeping in in the tank)
would this also need recapping.
Hope someone could advise me please

 

New injectors would require a remap yes

just fuel pump should be fine without remap (normally but have been odd occasions where this hasn’t been the case)

 

if you have a fuel pressure regulator you could turn it down by 20% for on the way to a remap . if you cant turn down fuel pressure, it will wash the bores of oil and the rings will scrape away the honing marks designed to keep oil within the bores and you will end up with an old oil burner. No doubt some one will correct me if im wrong.
But just remind the mapper to adjust the regulator to his requirements or you will run out of injector duty on the remap, this happened to me just recently.

 

As you’re running a syvecs you could fit them and then get your mapper to log on remotely and adjust your map to make sure it’s running safely for your journey to the dyno.

 

Cheers for all ur replys, yeh a got a fuel pressure regulator all mapped by scoobyclinic