R33gts-t Upgrades

[Turbo Dave]

I have a Nismo Pump, Nismo Fuel Reg,Highflow and a Z32 on the way.

Wanting 250rwkw...Should I do the injectors or max out the stock ones as I have been told it will work no problem?

My Gut tells me to get em but my wallet and wife says "Use the ones you've got"

Help!!!!! Is it too much of a risk???

Dave

[paulr33]

250kw is really on the border line of the stock injectors

with an FPR they might be ok or they might be on their knees and risk engine safety

[fob2nv]

spend the $700-$800 on injectors.

its better than spending a few grand on building a new motor.

thats my advise.

[Turbo Dave]

OK, I guess that will be the answer Im going to get from the majority....

They say it only the depth that varies.......Out with the Shovel

[evil_weevil]

def go injectors.

I upgraded to nismo 555cc injectors with my hi-flow set up. the standards were 90% duty cycle when giving it at the track.

got the 555cc's and max I have seen would be 60% with 235rwkw

[Simon-S14]

if all you are after is 250 rwkw then spend 300-400 on S15 injectors which will be a great little upgrade.

[MR 33]

Anyone reccomend an injector other than nismo 555cc?

[Turbo Dave]

Are S15 injectors hard to source?...What size/cc are they?

[Adriano]

They are 480cc, but that is at s15 rail pressure which is a bit higher than the rest, in an r33, they equate to 440cc(unless you bump the pressure up) There is a set in the for sale section at the moment.

[Dragonforce]

Nismo 555cc's from sponsers are your best bet.

Good price and drop straight in.

[NYTSKY]

Anyone reccomend an injector other than nismo 555cc?

I could....But Nismos are the best.

[MR 33]

Hmm thats what i thought but my tuner doesn't want me using them. Just nismo's 555 have certain issues, 740s are fine apparently. He said anything other then nismo 555's. Sards are too much stuffing around and not sure if tomei 555s are the same as nismo. I did have a reason, but forget at the moment. Will ask him again what the prob with them is....

[NYTSKY]

Hmm thats what i thought but my tuner doesn't want me using them. Just nismo's 555 have certain issues, 740s are fine apparently. He said anything other then nismo 555's. Sards are too much stuffing around and not sure if tomei 555s are the same as nismo. I did have a reason, but forget at the moment. Will ask him again what the prob with them is....

555s have issues???? Only the biggest and best tuning companies in the world use them not only on customers cars but their own cars.

Ive had them in my car for a year now,no complaints.

[MR 33]

Yes i know this, that's why i'm asking the questions. Wish i could remember what he said to me lol, he explained a little problem they tended to have. Might be awkward rocking up with nismo 555s after he said not to haha. Dunno what to do?? Should i just buy em and say yeah i'm gonna run with 555s? Or go nismo 740s (i will have close to 300rwkw in the end)?

[NYTSKY]

555s will easily handle 300rwkw.

EDIT:Nismo 555s and 740s are the same price anyway.

[MR 33]

Yer i know that but like i said, my tuner doesn't want me to run the 555s. Said i can run the 740s as they are different. Price is of no concern. Will have to call him up tommorrow and get the low down on the situation.....PM me if ya like to talk further

[Turbo Dave]

Getting excited now, have just sent turbo to be hiflowed... been told its getting a TO4 compressor and 56mm exhaust wheel, dunno what that means really but it sounded good....Bigger than whats in there I bet so thats a bonus.

Next are injectors then off to the dyno I go.

Dave

Edited March 11, 2008 by Turbo Dave