Jump to content
SAU Community

Gt-r Injectors

Cam84

By Cam84,
in Engines & Forced Induction

 Share

Recommended Posts

full_stick Collaborator

full_stick

Posted
Posted (edited)

I had 255rwkw with stock injectors fuel pump and turbos before upgrading. The tuner advised at that point that my AFM were maxed out but the injectors were fine. I only just upgraded to nismo 600cc so if you're after some R34 gtr injectors I've a set for sale so PM me if you're interested mate...

Edited by full_stick
Link to comment
https://www.sau.com.au/forums/topic/303004-gt-r-injectors/#findComment-5024824
Share on other sites
Brandon Veteran

Brandon

Posted
Posted
I had 255rwkw with stock injectors fuel pump and turbos before upgrading. The tuner advised at that point that my AFM were maxed out but the injectors were fine. I only just upgraded to nismo 600cc so if you're after some R34 gtr injectors I've a set for sale so PM me if you're interested mate...

Doesnt sound right... anyway nothing is the same when you're comparing old cars.

Just to give TS an idea, I know someone on the forum with another 33 N1 that has 330rwkw with close to 98% injector duty cycle and the only mod he's done are ecu, avcr, catback and cat (not 100% sure about cat but should be right). The only difference between N1s and standard gtrs are the engine, oil cooler, oil pump, water pump and no a/c. The other features doesnt really affect your power as much anyway (kelvar front diffuser etc).

Having said that, thats with an aggressive tune according to him and mine's running a safe tune with 255awkw at less than 90% duty cycle.

Link to comment
https://www.sau.com.au/forums/topic/303004-gt-r-injectors/#findComment-5024947
Share on other sites
full_stick Collaborator

full_stick

Posted
Posted (edited)
Doesnt sound right... anyway nothing is the same when you're comparing old cars.

Hey mate just wondering what doesn't sound right? The maxed out AFMs at 255rwkw? It was Dr Drift who did that original tune and who provided that advice.

Edited by full_stick
Link to comment
https://www.sau.com.au/forums/topic/303004-gt-r-injectors/#findComment-5025847
Share on other sites
bigmikespec Veteran

bigmikespec

Posted
Posted
Hey mate just wondering what doesn't sound right? The maxed out AFMs at 255rwkw? It was Dr Drift who did that original tune and who provided that advice.

Yes, they should not be any where near maxing out at 255kW.

Link to comment
https://www.sau.com.au/forums/topic/303004-gt-r-injectors/#findComment-5026145
Share on other sites
Brandon Veteran

Brandon

Posted
Posted
Yes, they should not be any where near maxing out at 255kW.

+1. Never heard of anyone maxing out stock afm around 300awkw. Stock items should be sufficient for that but I must agree, injectors, fpr and fuel pump are very nice to have items to archieve that. Maybe check if the afm you have now are clean and in sound condition.

Link to comment
https://www.sau.com.au/forums/topic/303004-gt-r-injectors/#findComment-5026171
Share on other sites
OMGGTR Mentor

OMGGTR

Posted
Posted

being an ass n budding in... im after around 230awkw on my r32 rb20... will r32 gtr injectors fit my rb20 ? after reading they might save me buying new ones u kno... if so ill just get some 2nd hand gtr ones n get them cleaned

Link to comment
https://www.sau.com.au/forums/topic/303004-gt-r-injectors/#findComment-5026192
Share on other sites
Brandon Veteran

Brandon

Posted
Posted
being an ass n budding in... im after around 230awkw on my r32 rb20... will r32 gtr injectors fit my rb20 ? after reading they might save me buying new ones u kno... if so ill just get some 2nd hand gtr ones n get them cleaned

I think the difference between them are side and top feed + low impedance (gtr).

Link to comment
https://www.sau.com.au/forums/topic/303004-gt-r-injectors/#findComment-5026201
Share on other sites
OMGGTR Mentor

OMGGTR

Posted
Posted

Ok doing some research found a old topic (search feature didn't work found through google.)

http://www.skylinesaustralia.com/forums/Gt...det-t62674.html

In all gtr injectors fit but u need the resistor pack and u gotta do some soldering :thumbsup:

but i dont think that hassle is worth it coz if u get different injectors later on taking off the resistor pack again will be draining... but i dunno if you will need to meh...

Link to comment
https://www.sau.com.au/forums/topic/303004-gt-r-injectors/#findComment-5026276
Share on other sites
Rekin Grand Master

Rekin

Posted
Posted
Ok doing some research found a old topic (search feature didn't work found through google.)

http://www.skylinesaustralia.com/forums/Gt...det-t62674.html

In all gtr injectors fit but u need the resistor pack and u gotta do some soldering :thumbsup:

but i dont think that hassle is worth it coz if u get different injectors later on taking off the resistor pack again will be draining... but i dunno if you will need to meh...

Check out my thread for info on how to fit the resistor pack. A bit simpler than ripping apart the whole loom.

http://www.skylinesaustralia.com/forums/Gt...hl=gtr+injector

Link to comment
https://www.sau.com.au/forums/topic/303004-gt-r-injectors/#findComment-5026285
Share on other sites
Parag0n Mentor

Parag0n

Posted
Posted (edited)
Meh, higher than 85% is ok if they are in good nick.

You'll end up leaning out, if you want to blow your engine run your injectors at 90% duty cycle + for a small period of time and watch what happens :(

The injectors go static and your fuel delivery goes out the window, you'll end up with a blown head.

A tuner shouldn't be tuning your injectors to run close to 100%, if he is, then he is a moron and just wants you back into the shop so he can rebuild your engine and get some extra cash :laugh:

Check out my thread for info on how to fit the resistor pack. A bit simpler than ripping apart the whole loom.

http://www.skylinesaustralia.com/forums/Gt...hl=gtr+injector

I don't really reccomend the resistor packs, they are usually dodgy, spend the extra and get a FJO Injector Driver and it will work properly.

http://www.fjoracing.com/products/injdrvr/

Edited by Parag0n
Link to comment
https://www.sau.com.au/forums/topic/303004-gt-r-injectors/#findComment-5039990
Share on other sites
Brandon Veteran

Brandon

Posted
Posted
You'll end up leaning out, if you want to blow your engine run your injectors at 90% duty cycle + for a small period of time and watch what happens :)

The injectors go static and your fuel delivery goes out the window, you'll end up with a blown head.

A tuner shouldn't be tuning your injectors to run close to 100%, if he is, then he is a moron and just wants you back into the shop so he can rebuild your engine and get some extra cash :)

I already know of someone who ran Targa with 98% (max) a couple of times.

Link to comment
https://www.sau.com.au/forums/topic/303004-gt-r-injectors/#findComment-5040167
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • soviet_merlin
      RH9 R32 GTR Build Thread

      By soviet_merlin · Posted

      Oof, I will forevermore have those shredded gears in mind whenever someone talks about showing mechanical sympathy towards their car. Thanks for the photos, fascinating stuff!
    • Dose Pipe Sutututu
      RH9 R32 GTR Build Thread

      By Dose Pipe Sutututu · Posted

      Curious to see how the SpeedTek stuff holds up
    • OST Micah
      RH9 R32 GTR Build Thread

      By OST Micah · Posted

      The holdups last year were drivetrain related. I had the car out right after getting the bearing issue resolved. Third launch and the car didn't move after releasing the clutch. It had sheared all the engagement teeth off the 1st gear.    Thankfully no other damage was done. I set an aftermarket gear beside an OEM gear and found that the engagement teeth on the OEM gear were much larger and better supported. Looking through my bin of spare transmission gears I found that there are two types of tooth on the OEM first gears - the larger tooth and the smaller tooth. It looks like most aftermarket gearset manufacturers base their design on the smaller tooth. OEM large tooth left - Speedtek, OS Giken, etc or OEM small tooth right Decided to give that larger engagement tooth a try. Pressed the ring off an OEM gear and sent it to a transmission manufacturer here in the States. They did their "faceplating" operation with my synchro ring on the Speedtek gear.   I reassembled it, took it back to the track and promptly destroyed the gear itself.  I'll rebuild this and use it as a spare - thankfully just first gear and the countershaft are damaged beyond repair. Definitely disheartening but my welded on engagement tooth ring held up!  Moved to Speedtek's dog engagement design as the gears appear to be much stronger. So far they have taken much more abuse at the track. Also scored a Stillway lockout from the Netherands for super cheap. It's for some other RB transmission so it took a bit of fabrication to fit but honestly a very easy job. I also had to heavily modify the gates as they were very different.   Then for some reason at the last test and tune a silicon coupler below the throttle blew off and took out the radiator and fan. Thankfully it was in the burnout box and not down track. This car is really beating me up - I still haven't made a pass in it. Ran it through the gears many times on the street but it keeps biting me at the track.  Currently in the process of replacing the radiator and remaking the throttle pipe to remove the coupler and use a cast 90 and a vband. I WILL get this thing down the track...
    • Ozdavroz
      Dumb rich kid tries modding for the first time

      By Ozdavroz · Posted

      Covers most of the above points really. There's a few exceptions but most just see driving as an irritating but necessary task they must complete if they want to get anywhere on time. Also see it as a good time to show their awesome multi-tasking abilities on their mobile and/or doing their makeup.  
    • OST Micah
      RH9 R32 GTR Build Thread

      By OST Micah · Posted

      I don't believe I posted pictures of the second oil pump pickup I added so here they are. Data shows it gets oil pressure up to the relief pressure much earlier in the RPM. Is that important? Not likely... This was just another attempt to fix the bearing issues.   I also heavily opened up the inlet to the pump since it now had to flow oil from two pickups. I believe the diameter increased about 1/8".
×
×
  • Create New...