Originally Posted by Malc50
Hi Stu...
This might be a silly question but are greys really on their knees after 400bhp? I am not questioning ur knowledge
But I am getting really confused over the way to go above 400bhp. I know every tuner has thier own individual way but if a grey can't fuel it , it can't fuel it for anyone can it??
As I say I might be miles off but just need it clarified please...
Thks for your advice as always.
Cheers Malc
Hi, depends on your opinion of "On its Knees" i expect.
Given heavier fuel pressure they can literally fuel for 500bhp, but at standard fuel pressure, on a YB
(The engine type and tune matters due to VE), they are usually almost flat out at 430. Given its not great practise to regularly exceed more than 80% injector on time, i would say around 420 is probably the safe limit, although greys are proven in excess on 90% injector on time... its a tricky one to call, but given Jays particular requirements, I.E. he has not yet chosen an injector, then my advice for anyone who wants a 400+bhp injector has to be that he buys injectors that are having a party at 400BHP, not a nightmare. Especially as there is no cost penalty whatsoever, they dont even need fitting kits.