Thanks mate, will look into it.. An upgrade looks like its necessary for me to get just over 200kwatw..

Formula I have to work out max power for injectors is as follows:

CC of injector divided by 5 x how many cylinders = Max BHP at 100% duty.

So 440cc injectors in a 99 will equate to a max BHP at 100% duty cyle of 352. Obviously I need to have a safety margin for acceleration enrichment and so forth so a max of 80% duty cycle would be very safe.

352bhp minus 20% is 281.6bhp which is just on 210kw's.. Given the common 15% drivetrain loss that would be about 178kwatw.. not enough...

550cc injectors will give me 223kwatw at 80% duty cycle

650cc 265kwatw at 80%

800cc 325kwatw at 80%