Injector Size For 400-450rwkw

[VB-]

replacing the rb25 head with a rb26 with some nice 270 cams.

hoping for around 400-450rwkw with a hks t04z.

but wanted to know would 800cc injectors be big enough or should i get the big 1000cc?

[R31Nismoid]

800cc

[VB-]

will 800cc give me enough leg room incase the cars in the wrong situation? or pushed hard enough?

[R31Nismoid]

well I'm putting in 700's for 400rwkw

[DCIEVE]

I'd go 1000's, straight up.

[Luke_ENR34]

Would 1000cc Sards be ok to Run a 26/30 on E85 pushing 400-500kw?

Sorry to hijack

[VB-]

I'd go 1000's, straight up.

i would buddy but theres like a 500bux differnece in price, bitch of a cold start and exhaust idle. =[

Would 1000cc Sards be ok to Run a 26/30 on E85 pushing 400-500kw?

Sorry to hijack

theyd be fine, only reason im asking is maybe they might be to overkill.

Edited April 8, 2009 by VB-

[R31Nismoid]

You would need 1000's for E85 without question. 30% more fuel required.

[DCIEVE]

i would buddy but theres like a 500bux differnece in price, bitch of a cold start and exhaust idle. =[

I went with 750's and now looking at having to move them on for something bigger - given hindshight I would have saved money if I'd gone 1000's first time around.

What ecu are you using to be concerned about injector control?

[VB-]

I went with 750's and now looking at having to move them on for something bigger - given hindshight I would have saved money if I'd gone 1000's first time around.

What ecu are you using to be concerned about injector control?

well ive always planned to use the PFC D jetro.......but some have raised the question about Haltech.....problem is i dont think they have a plug and play unit =[

[Al]

I would go 1000cc, low impedance. Trying to make motor with 1000cc, high impedance, injectors idle would be an absolute prick.

The reaction time of a low impedance injector is a lot faster, hence the motor will idle more smoothly, than if you were to use a high impedance injector.

[VB-]

i always thought the bigger the injectors the more problems with idle lol

[Marko R1]

I would go 1000cc, low impedance. Trying to make motor with 1000cc, high impedance, injectors idle would be an absolute prick.

The reaction time of a low impedance injector is a lot faster, hence the motor will idle more smoothly, than if you were to use a high impedance injector.

im in the same boat, in the sard range there are 2 options:

1. black top/orange tip, lag time 1m/s

2. light blue top/green tip, lag time .85m/s

is the 1st injector low impedence you are referring to?

[N1GTR]

Call tuner for info like that Marko

[unique1]

i run 1000cc sards and bigger cams than mentioned and idle is no problem at all. cold start idle was never the greatest but i aint running the idle air control valve any more and never really cared as it wasnt a daily driver. I had to keep the revs up a touch for 30 secs and then it idled itself fine, dont think this is the injectors fault though.

[T04GTR]

1000's in a 14mm fuel rail. 1600's if you want to run e85. i have 1000's and at 376kw they are on 75-80% cheaper to get 1 set not having to buy smaller ones only to run out of RELIABLE headroom..

1000's idle perfect, just depends on your tune,, oh and ecu

[WHITER33GTS-T]

Im running 1000s in my 25/30 and have no trouble to idle when cold. But have haltech E11v2