GT-R injector cc question??

[ipattacker]

Hey guys first post here. Im a mod on calaisturbo.com.au and alot of the fellas there a wanting to fit GTR injectors to there cars. Just have 2 quick questions for a injector or GT-R guru.

How many CCs are R34 GT-R VSPEC INJECTORS??

Are GT-R VSPEC Injectors the same as GT-R injectors?

Im not very cluey on skyline so please excuse my naive ness.

Regards,

[GZ R33]

Hey guys first post here. Im a mod on calaisturbo.com.au and alot of the fellas there a wanting to fit GTR injectors to there cars. Just have 2 quick questions for a injector or GT-R guru.

How many CCs are R34 GT-R VSPEC INJECTORS??

Are GT-R VSPEC Injectors the same as GT-R injectors?

Im not very cluey on skyline so please excuse my naive ness.

Regards,

Injectors are the same for v-spec, 414cc for the r32 & r33 pretty sure they would be still the same on a r34.

[ipattacker]

Thanks for that

What kind of power has been made with these injectors. Can the make 300rwk at 80% duty cycle???

[Laurence]

No... not even close.

Well maybe, with a shedload of fuel pressure.

[GZ R33]

Put it this way I've got 600cc and there just enough for 320 4wkw

[ipattacker]

mmmmmmm too small then thanks for the feedback guys..

[GunMetalR33]

What can GTR injectors make?

[ipattacker]

414cc will be good for about 85 hp per cylinder...

[DCIEVE]

thought they were 440cc??

[Sydneykid]

Hi guys, rule of thumb, in a 6 cylinder engine 1 cc per injector = 1 bhp. So 414 cc injectors = 414 bhp. Divide by 1.34 to give you kw = 310 kw. Take away transmission losses, say 60 kw and you end up with 250 rwkw. From experience that's about the best you get out of standard GTR injectors at standard fuel pressure. You can increase the fuel pressure with a larger pump and adj fuel pressure regulator. I personally would only do that for around a 10% increase, so 275 rwkw would be it.

Hope that helps

[Laurence]

Just on a trivial note, the Group A Gibson cars used 550cc injectiors and 115psi-138psi of fuel pressure!!!

[Sydneykid]

Just on a trivial note, the Group A Gibson cars used 550cc injectiors and 115psi-138psi of fuel pressure!!!

Using an inlet camshaft driven, mechanical fuel pump.