Alright guys, i have just fitted an eaton charger to my G it has an uprated chip and a smaller pully. I also have a set of blue top i think there 314cc, and was wondering if i can put them on or do i need a remap?
you need to find out for definite just what size the injectors you have are. Get the bosch part code off them and find it on this list:
http://www.polog40.co.uk/article_injector_table.php
However, even injectors that have the same flow rate can be quite different. For example, some 310cc injectors have a single pintle where as some have quad pintles. This makes them deliver fuel quite differently at low and part loads so the map needs to be quite a bit different (as Andy found when mapping my car).