Will adding 440 injectors prior to getting a re-map really screw up the running of the car or will it run the same but with that extra bit of room for fuelling when I come to map it?

Cheers

MAFFA

 

it will probably run. bit lumpy and crap. depends how many miles you've gota do.
it only an hr (MAX) to change them. bit crap at the side of a road, freezing your nuts off tho!

Turning fuel pressure down a bit may make it better - if you can adjust it !

if you're gona put a mappable ECU in before you set off, you could adjust fueling down too, but then you'll still be running an unmapped car.

I'd leave it till you get it mapped. test fit them and check they dont leak etc. and then do it on the day.

Steve

 

If they are drop in fit, it'll take even you only 15 mins to fit the set.