AlexI

Hi guys! I have 98' Z28 5.7l LS1 Camaro and I want to replace my fuel injectors. And I wonder what flow perfomance should I choose. Could you advice best choice of producer and perfomance for my engine. Engine is stock with no mods. Hope for your advice.
Sorry for bad English

Injuneer

If your engine is stock, there is absolutely nothing to be gained by changing fuel injectors. Stock injectors have more than adequate flow rating.

AlexI

Thanks for respond!
Yeah, I understand that I need stock injectors, but mine works poorly even after cleaning, so I believe I need replace them. I found out that 98' LS1 engine has 28lbs injectors in stock.
Would that one's fit?
New Bosch Fuel Injector Set 28lb HR Ford Mustang 4 6L Chevy Camaro 5 7L | eBay
P.S. Please, don't advice me to go to nearest GMC dealer cause I'm not from USA

Injuneer

Depends.... If those are Ford injectors, they are typically flow rated at 39.15psi (2.7bar). Your 98 operates are 58psi (4bar). If the injectors are flow rated 28#/HR at 39.15psi, they will flow 34#/HR at 58psi. That would require a tune.

They mention they are for a 5.7L Camaro application. Depends which 5.7L they are talking about - the LT1 5.7L runs 43.5psi (3bar) pressure. Your LS1 5.7L runs the 58psi pressure.

You need to ask the seller at what pressure they will flow 28#/HR.