Jump to content
SAU Community

Recommended Posts

2000 cc injectors are way overkill.

Let your tuner decide what it needs. They know what they are doing.

Not sure what Marko needs but I am taking this advice and will see what Jim feels he needs to make it work in together. It seems it might be a bit easier for the injectors to work better on the dyno then under more stress on the road maybe??

I'd also rely on the tuner...which Jim is tuning it and what power level are u aiming for?

From memory I think my tuner only hit 65% duty cycle which was impressive

Edited by Marko R1

CRD, we have only spoken about 400awkw ish on pump, E85 ? having the Haltech Flex Fuel Sensor installed just in case I ever get a chance to use it. To be honest I would not be using the E85 for the extra GO, but it seems a good all round fuel for the engine..

Haha , I do not even know what a duty cycle is, I will go and look it up but I would guess it means they are not pushed to the limit :)

just had a look and my guess was right but terminology was a little rocky :)

Seems that it is not a good idea to exceed 80% to 85% duty cycle and if you are at 100% there is no injector control as it is open 100% of the time

Paul, get back to work :)

The world of modifying cars is certainly much different than I expected, I saw alcohol abusing, cigarette puffing, drug taking, tattooed , mullet cut yobbos and thats why I joined but now I am consorting with a bunch of fairy blokes that use their big head, gotta get out of here :/

Off topic

Does it make it over kill to have injectors at , say 55% cycle. Just thinking that you never know what you will do in the future. Does it cause a problem, rough idle or anything like that ??

Edited by TT350GT

With the old wrecks of injectors (Sards, Rochester, whatever else) that was an issue. Today with the ID/Bosch 14V's for example, it's not really an issue.

Look at that. ID 2000's on a pissy 1.8 NA.

Did they install these to prove a point?

Yes. The point being that there isnt any downside to using the larger ID injectors.

Aftermarket Industries stock a new 1650cc bosch injector that is worth a look too. Direct plug-in connector compatability with the RB26 loom, so no cut/solder job.

http://www.aftermarketindustries.com.au/injectors-c49/bosch-1650-p206/

Well I am sceptical of larger than necessary injectors. Being able to control it is one thing, but what about the fuel mixing thoroughly with the incoming air?

What ecu is used in the video? I'm sure bit all ecu's would be able to control such low opening times.

For sure allow some head room, but be realistic about the flow you really need.

At a stoichiometric idle? Which the video wasn't. ...

Going off my wideband they were fine (which I'm sure Brett is referring to in his post). The old wreck Sard 800's were 10 times more grumpy than the ID2000's are.
  • Like 1

I have the Haltech pro R34GTR platinum ECU, I would think it should do the job if we went that way. Just getting my head around injectors, well the best I can in a day or 2 :) haha

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



  • Similar Content

  • Latest Posts

    • Reasonably hard, although I haven't run it with the new Endless setup yet. The old brakes were F50's on 335mm rotors and the car did a 1:40.6 at Phillip Island which is a reasonable time, I'm seeing high 600s on the temperature paint. A guy I know ran the Endless fluid at WTAC without issues and he was doing 1:33's I think (Evo) with a 355/332 setup. I don't get out to the track as much as I'd like but we put the car on the hoist and spanner check every bolt and re-paint mark everything, bleed the brakes, change the fuel, check the coolant system and re-bleed blah blah blah before every event. Motorsport is expensive, RB's are expensive so a couple of hours before an event is time well spent. It's also a net time saving because if you can keep your RB from self destructing it saves you time in the long term!
    • Welcome Alice......hope you have a bit more luck from here on! What was done in the build?  
    • Hello! I'm new here, I have an R33 GTST that is currently being finished up! Last year was pretty rough, blew two stock turbos so I decided to build the car. Has been down since November, but I get it back next weekend!
    • Hello, I believe my car was imported to America in the 2000s by Kaizo Industries. Would anyone be able to help me find more info on them? I've only found all the basic stuff like that paul walker bnr34, them being shutdown by feds, just stuff like that. Any help would be much appreciated, thanks!
    • I am using Motec M150.  I am not working on the car myself actually.  My workshop is giving all these info, they are quite reputable in the industry and are very familiar with Motec and RBs and have done a few big setups with VCam and single turbo on RBs.  In fact, they built and tuned my engine from day one.  But they are stumped with my engine at the moment and cannot work out how come the compression is so low with the VCam. They told me that they have now swapped in some Kelford cams (without the VCam) and can achieve around 130psi compression and the low end torque is better, but now the engine is doughy as.  It boosts and peaks at more than 1000rpm slower, with twin HKS GTIII RS, it doesn't get full boost until over 5000rpm. I have always thought the VCam was a bit disappointing at the low rpm. To a point I had to ride the clutch a fair bit to get up a small hill from stand still.  That was when I had a clutch.  Now changing to a 8HP, I don't have that luxury and this problem has become a major issue. I am beginning to think the VCam never work since the day it was installed.  Maybe it was just sitting at the most advanced point, that is why it went good at top end but very ordinary at the bottom.  Therefore, with the help of the Holinger 6 speed and paddle shift, as long as it was moving, it drove pretty good.
×
×
  • Create New...