Should I Get A Fuel Pump And Injectors?

[Adz2332]

Hi all,

Just after a bit of advice, The car is a GTR R33 Skyline.

The items that are fitted is

N1 Turbos

exhaust - Just fap front pipe, highflow metal cat and cat back Kakimoto Regu 06&R.

Blitz SUS Pods

Trust FMIC

Have bought ready to install....

Greddy profec 2

Tomei Cam gears...

and

Power FC and controller

Standered fuel pump, injectors etc etc

Should i change the fuel pump? or injectors? Will the stock GTR items be ok? If need to be changed what would surfice?

Should i look at adding anything??? I want to do as much as i can before the tune so i know it'll all be right.

Just wondering what COULD be expected from this set up??

Thanks

Edited March 13, 2008 by Adz2332

[sewid]

You need both before installing the PowerFC or you'll be wasting your time and money tuning it. You'll max out the injectors before making any meaningful power and the workshop will most likely tell you what everyones told you already.

upgrade your fuel system....

[abu]

Injectors and fuel pump will go to about 270kw - people say 300kw but it never makes it to there as the are old and tired

I would personally go some bigger injectors and also a new fuel pump - NISMO/TOMEI etc

You've come this far so you might as well put everything on at once and get it all tuned together otherwise you would be just wasting money going back later for more boost + injectors & fuel pump

[Adz2332]

What size injectors would people go???

Also is the fuel pump the kind of thing i can replace and change myself?

[abu]

direct deplacement TOMEI or NISMO if you want to spend some cash

That will go straight in and they aren't that loud either

[johnbarry88]

700cc min but 850cc sards to have clearance and a 044 pump with surg tank & FPR or cheaper option 040 intank

[Adz2332]

Fitting injectors and fuel pump something i can do??

[abu]

Yes - Although the 040 might require you to modify the cradle to make it fit - had to cut the bottom of the cradle off in my GTST

TOMEI pumps go in way easier - use the stock fittings/mountings etc and come with new seal and shit

Yes - injectors are piss easy in GTR

there is a DIY somewhere as well

[Adz2332]

cheers thanks...

SARD injectors are pretty cheap... searched and no one seems to have much trouble with them....

Any good?

[johnbarry88]

ive got sard 700cc injectors good injector got mine off a mate in japan for $700 delivered

[Adz2332]

So 700cc would be enough for this set up??

other options are 660cc 800cc??

[Adz2332]

Also with the fuel pumps, all the nismo 276L/H, HKS 280L/H Tomei etc etc all around the same price etc So they all around the same??? or are any better than others??

Edited March 14, 2008 by Adz2332

[johnbarry88]

you might get away with one of those up 350rwkw maybe..yeah yeah I know heaps of ppl are making that on standard pumps blah blah blah...its about how much power you want know and in the end run, sure you can use it as a lift pump in the next upgrade but then that means another tune and more $$$ wasted...just do it rite the first time and be done with it, run new fuel lines like 3/8" lines again ppl say standard is fine but think 3/8" or 10mm is 20% bigger in size than standard...

[Adz2332]

bump :S

[Adriano]

660cc injectors will be great for your setup, they are good for up to about 380rwkw

[Adz2332]

At the moment greenline has a special on SARD injectors, so i was thinking some 700cc. Will they do the job?? As there the same price as the 660cc ones

Also with the fuel pumps, all the nismo 276L/H, HKS 280L/H Tomei etc etc all around the same price etc So they all around the same??? or are any better than others??

[johnbarry88]

get the 700 and a pump and see how it goes

[R338OY]

Nismo and HKS are better pumps than Tomei. A few ppl have said Tomei's lose voltage at high RPM and the engine leans out.

GET the pump and injectors. As soon as i cranked the boost (from stock to 12psi) the pump started to die.

Pump change is a DIY job, i'm not a mechanic and i got the old pump out easy. Injectors give the DIY sectin a read.

Get injectors that suit what you need from them. No use getting 1,000,000cc's when i.e. 660cc will suffice.

[The Mafia]

Don't put a junky Bosche 040 in your GTR if you want to make good decent power and reliably.

Get a Nismo 275lph @ 72psi pump. It will fit it like a glove and require no modifications. Oh, and you won't have pickup issues either.

[Adz2332]

Don't put a junky Bosche 040 in your GTR if you want to make good decent power and reliably.

Get a Nismo 275lph @ 72psi pump. It will fit it like a glove and require no modifications. Oh, and you won't have pickup issues either.

excellent thanks guys thats the info i was after!!

Glad there both a DIY job, will search for the info...

Ill get a price on the nismo 275lph and the sard 700cc injectors. cheers guys.