nismo 555cc fuel injectors

[240DRFT]

how much hp will the nismo 555cc injectors hold up to?

[goofynick6]

I'd say around 450whp safely

[Demonic240]

I get something different then goofynick6, someone what to verify

I calculate 390 hp.

Here is the Equation I use.

For Injectors in CC: (((Injector size in cc's / 10.50) x Duty Cycle) / B.S.F.C.) x Number of Injectors

For Injectors in LBS: ((Injector size in lbs X Duty Cycle) / B.S.F.C.) x Number of Injectors

Duty Cycle I used = 80%B.S.F.C. I used = .65 (Brake Specific Fuel Consuption)

This is why I used .65 for B.S.F.C.NA Engines Typically = .45 - .50 B.S.F.C.Supercharged = .55 - .60 B.S.F.C.Turbpcharged = .60 - .65 B.S.F.C.

[goofynick6]

I'm just going on street knowledge vs. the equations..

I put down around 360whp in my 2.5 V6 probe running 440cc injectors and they were still at low duty cycle according to my SDS. However, it depends on the amount of boost you'll be running and the pressure they're run at..etc etc. I'd say unless you're going for big big power, 550's are great, anything larger you should already know what they're good for by now.

Nick