Injectors

[steves180]

Hey everyone!

I will be after new injectors in the not to distant future, and i will want as must power out of them as you can get. Seeing as i have no idea on the topic i was wondering if you guys had any advice/experience on what to get, where to get it and who to install it.

Cheers

[MKDR33]

SARD 550s id recommend.. good for max power out of stock internals.. unless ur willing to work ur internals and get more hp..

[steves180]

It will all happen in the end but first im after injectors and turbo up grade, that should be more than plenty for a while.

Has anyone done them changes to your skyline and what was the power difference?

[tridentt150v]

nismo 555cc injectors and a GCG hiflo plus other mods = 240rwkw at 60% duty cycle.

Must admit I didn't install the injectors, but as best I can tell they are nismo 555's. They are yellow top ones, the only mob that I can find that makes this colour is nismo, and the only size that is yellow is 555cc.

[Now I'll wait for ppl to tell me how wrong I am......lol].

I've got to get back to Ed and a dyno and tune for my nismo fuel pump [get rid of the walbro], hard intake, split dump and tomei cams. Soon I hope, but its all in the timing [pun intended....]

[low200]

ill be after some injectors when i get my car back. ive heard SARD 550cc are the best bang for your buck.

[tridentt150v]

Don't listen to me...............I just found out my turbo is not a std one at all, I don't know what it is [a mongrel probably], all I know is that it came from japan on the car.........jeez I'd like to be living next to someone with a std so I can compare turbo's right about now!!!! Royston Vasey is a long way from anywhere!!!

[leech_]

give it to me maybe its a VG30 turbo ???

Don't listen to me...............I just found out my turbo is not a std one at all, I don't know what it is [a mongrel probably], all I know is that it came from japan on the car.........jeez I'd like to be living next to someone with a std so I can compare turbo's right about now!!!! Royston Vasey is a long way from anywhere!!!

[race_snooze]

Don't listen to me...............I just found out my turbo is not a std one at all, I don't know what it is [a mongrel probably], all I know is that it came from japan on the car.........jeez I'd like to be living next to someone with a std so I can compare turbo's right about now!!!! Royston Vasey is a long way from anywhere!!!

post some photos i just had mine off so ill be able to compare for you.

[tridentt150v]

I won't hijack Steve's thread, see my new one!

[Sinista32]

Once decided on Injectors (SARD 550 or higher) check out nengun for prices. Found I couldn't beat the price when buying mine.

[Amaru]

Check out Croydon for injectors as well. They stock all the Denso injectors (Sard, Nismo, TRD etc... theyre all made by Denso) in a variety of sizes. They are fractionally more expensive than greenline/nengun but for the extra $100 or so you pay they will be here overnight.

And as a rule of thumb, 1cc of injector flow equates to 1hp at the crank (assuming you havent jacked up the fuel pressure).

[steves180]

I won't hijack Steve's thread, see my new one!

lol thanks mate.

Ill look into all that guys thanks alot.

[Lazy-Bastard]

Sard's will require collars (they are not a direct fit) I would go Nismo, they are a straight swap

[Sinista32]

Dont beleive the Sards needed collars for the 32. I could be worng as the mech did the change over. I just didn't see him do it. Seemed a straight swap from where I was standing.

Would like to know for certain.

[Amaru]

Sards are a straight fit in the RB26, not sure about others. Just get some new O-rings ($10) and lube them up as they are a tight fit

[R3sp3ct]

Thanks for all that guys

[JaiJai]

Ive been hunting for new injectors as well - 555 big enough (270-280rwkw) or jump up to 740?

[tridentt150v]

Ask your mechanic, or read through the forced induction forum for R33 turbo results. What you want to avoid is way overfueling, and if you start doing that you could damage something real quick [besides your wallet..lol]. Overfueling washes the oil off your bore, contaminates your oil, and gases the car behind you.

If your doing a gradual build up then I'd go 555 [and you'll probably find you won't need any bigger], if you are pulling it all off the road and going gangbusters with the whole kit [forgies, biga$$ turbo, fmic, ecu, cams, etc etc etc] then 740's would be OK.

A lot of ppl are running with 555's and getting 250rwkw at around 60% duty cycle, so the system is no way maxed out. I'd think that 555's could handle close to 300 before they need upgrading.

[race_snooze]

just go the bigger ones, and cut the duty cycle down to suit your application.

But yes ask the ppl who will tuning the car as to what they think.

Edited September 20, 2006 by race_snooze