Hi guys


Recently had my hawkeye STi forged and its due its post build tune after being bedded in.


Looking for 400+ bhp. What's the limit of the standard injectors? Been advised to upgrade to 750cc injectors.


cheers


Lewis

 

depends how much north of 400 bhp ? ive ran 428 bhp on the standard injectors

 

depends on the engine, turbo and fuel type as well. You could likely clear 400 on standard injectors or with just a fuel regulator on to give a little more flow but you'll see better results usually with the upgraded injectors. I'd be looking at least 650cc to go for 400+ all day long so the 750's would be a good shout in my opinion.

 

I maxed my 2.5 hatchback standard injectors (565cc same as hawk) at 398bhp