Jump to content
SAU Community

Recommended Posts

Hey man

I have just installed about two months ago a 3076r. i got 271rwkw at 17psi

your 600cc injector might max out at 270rwkw man

you might need bigger injectors or a fuel pressure reg

i have 740cc injector and there at 80% cycle

My clutch had the dick at 270rwkw also

i just bought a Os giken twin plate too.

As for coils. Man you need them as then will miss fire hard

  • Replies 66
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Posted Images

Hey man

I have just installed about two months ago a 3076r. i got 271rwkw at 17psi

your 600cc injector might max out at 270rwkw man

you might need bigger injectors or a fuel pressure reg

i have 740cc injector and there at 80% cycle

My clutch had the dick at 270rwkw also

i just bought a Os giken twin plate too.

As for coils. Man you need them as then will miss fire hard

Get your car checked.

I am making 274rwkw @ 15psi on a rb30det, using 550cc and my duty cycle only reaches 72% MAX.

Wow boys nice replies.....................

With those injectors is there a Fuel presusure reg involved..........

I am using 740cc but my fpr isnt really in use ............

My turned name is Dave formally know as Dyno Dave. been tuning for over 20yrs

i believe he has some experiance

Charlie, without trying to start a shit fight or start throwing insults around, please confirm your injector size (don't just tell me they are 740's, take the number 1 plug off and confirm the colour, i'm assuming they are nismo's), the fpr base pressure and the fuel pump and wiring being used. 740's should be capable of a lot more if the rest of the fuel system is up to scratch.

Don't start claiming dave is the greatest tuner ever and what he tells you is gospel. Your results are significantly different to other results so find out why. Do not accept what one guy tells you. Either the dyno is reading low (which i know bel's doesn't) or there is some other issue.

Book in a run with UAS, CRD, Unigroup, JEM, whoever and get a second opinion.

I don't want to labour on duty cycles either, so can you post up the sheet on the result here?

270kW @ ~17psi with a 3076 on an RB25 is fairly typical, and a good stout result.

I saw from one of your posts that you are running an external gate. What manifold is it all bolted to?

I have just installed about two months ago a 3076r. i got 271rwkw at 17psi
Wow boys nice replies.....................

With those injectors is there a Fuel presusure reg involved..........

I am using 740cc but my fpr isnt really in use ............

My turned name is Dave formally know as Dyno Dave. been tuning for over 20yrs

i believe he has some experiance

:cheers:

Well hell in that case you may as well go and buy some 1500cc injectors so your "experienced" tuner can make 340rwkw @ 79% duty cycle. :)

No one questioned the abilities of your tuner, they are saying that something else may be causing your injectors to run harder; but a good tuner would know that 740cc injectors are good for 400+rwkw, so he should be looking at why your setup requires such a high duty cycle.

I do have an adjustable fpr, but it's currently running std pressure. Once my new engine is run-in, i intend to run more boost and hopefully crack into the 300+rwkw range. It is at this time i plan to see if i could get away with adjusting the fpr; If not i could always buy yours for a very cheap price ;)

Charlie, without trying to start a shit fight or start throwing insults around, please confirm your injector size (don't just tell me they are 740's, take the number 1 plug off and confirm the colour, i'm assuming they are nismo's), the fpr base pressure and the fuel pump and wiring being used. 740's should be capable of a lot more if the rest of the fuel system is up to scratch.

Don't start claiming dave is the greatest tuner ever and what he tells you is gospel. Your results are significantly different to other results so find out why. Do not accept what one guy tells you. Either the dyno is reading low (which i know bel's doesn't) or there is some other issue.

Book in a run with UAS, CRD, Unigroup, JEM, whoever and get a second opinion.

That is fair enough.. it is ok not shit fight is starting

I am not saying dave is the best tuner ever

but 20 years experience ..... he must know more than a bit dont you reckon

I have Nismo 740cc (red)

i also have a Sards Fuel reg

Walbro fuel pump

They are capable of doin more.... well except for the fuel pump

I don't want to labour on duty cycles either, so can you post up the sheet on the result here?

270kW @ ~17psi with a 3076 on an RB25 is fairly typical, and a good stout result.

I saw from one of your posts that you are running an external gate. What manifold is it all bolted to?

Im have a tial wastgate gate off the standard manifold

and i get 17psi at 3500rpm

:(

Well hell in that case you may as well go and buy some 1500cc injectors so your "experienced" tuner can make 340rwkw @ 79% duty cycle. :P

No one questioned the abilities of your tuner, they are saying that something else may be causing your injectors to run harder; but a good tuner would know that 740cc injectors are good for 400+rwkw, so he should be looking at why your setup requires such a high duty cycle.

I do have an adjustable fpr, but it's currently running std pressure. Once my new engine is run-in, i intend to run more boost and hopefully crack into the 300+rwkw range. It is at this time i plan to see if i could get away with adjusting the fpr; If not i could always buy yours for a very cheap price :)

Ill get my sheets on the comp and ill post them up asap....

That is fair enough.. it is ok not shit fight is starting

I am not saying dave is the best tuner ever

but 20 years experience ..... he must know more than a bit dont you reckon

I have Nismo 740cc (red)

i also have a Sards Fuel reg

Walbro fuel pump

They are capable of doin more.... well except for the fuel pump

Im willing to bet it is your pump and not your injectors i got my car tuned and it showed up around 80% duty cycle with 600cc injectors and was making only 245rwkw with 14psi...changed the pump, finished the tune and it showed 306 rwkw at 18psi and the duty cycle went back down to high 60s

On to the turbo I had a 3076r with a .82 IW rear made 306rwkw at 18psi and 260rwkw at 14psi it was quite responsive though i did have poncams to help, all up it was a nice linear turbo on the street not so much down low that it would wheel spin all over the place and not too laggy

Im willing to bet it is your pump and not your injectors i got my car tuned and it showed up around 80% duty cycle with 600cc injectors and was making only 245rwkw with 14psi...changed the pump, finished the tune and it showed 306 rwkw at 18psi and the duty cycle went back down to high 60s

On to the turbo I had a 3076r with a .82 IW rear made 306rwkw at 18psi and 260rwkw at 14psi it was quite responsive though i did have poncams to help, all up it was a nice linear turbo on the street not so much down low that it would wheel spin all over the place and not too laggy

hey mate,

Your 3076 was internally gated? Where did u source it from if u dont mind me asking?

:whistling:

hey mate,

Your 3076 was internally gated? Where did u source it from if u dont mind me asking?

:whistling:

I got my internally gated GT3076R through Slide on these forums.

Here is his new thread, i just happened to see: Slide's Garrett Turbos

hey mate,

Your 3076 was internally gated? Where did u source it from if u dont mind me asking?

:D

I got mine from this man here Elite Racing he was a few hundred dollars less than Slide at the time but i would get a prive from both.

What did you do about water and oil lines? also did it require a spacer plate?

How have you found the internal gate? No boost creep at the higher end? :thumbsup::D

Sorry for all the question!

Cheers mate

water and oil lines can be ordered from the above two guys it did require a small spacer, mine fitted on the manifold...but only by about 1mm so we thought it was best to space it out a little lol. I had a 14psi actuator I had no boost creep at all but if you had a lesser actuator I think you may strike the odd problem

That is fair enough.. it is ok not shit fight is starting

I am not saying dave is the best tuner ever

but 20 years experience ..... he must know more than a bit dont you reckon

I have Nismo 740cc (red)

i also have a Sards Fuel reg

Walbro fuel pump

They are capable of doin more.... well except for the fuel pump

why hasnt your experienced tuner told you that your running out of fuel! and recomended you change pumps?

as i suspected your running a walbro, which is a awesome pump for early stage 1 mods, but once past 250rwkws the walbro run's out of puff. change it soon if you like your bottom end.

why hasnt your experienced tuner told you that your running out of fuel! and recomended you change pumps?

as i suspected your running a walbro, which is a awesome pump for early stage 1 mods, but once past 250rwkws the walbro run's out of puff. change it soon if you like your bottom end.

Good pick-up

+1 to replace walbro pump.

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

    • Well, that's kinda the point. The calipers might interfere with the inside of the barrels 16" rims are only about 14" inside the barrels, which is ~350mm, and 334mm rotors only leave about 8mm outboard for the caliper before you get to 350, And.... that;s not gunna be enough. If the rims have a larger ID than that, you might sneak it in. I'd be putting a measuring stick inside the wheel and eyeballing the extra required for the caliper outboard of the rotor before committing to bolting it all on.
    • OK, so again it has been a bit of a break but it was around researching what had been done since I didn't have access to Neil's records and not everything is obvious without pulling stuff apart. Happily the guy who assembled the engine had kept reasonable records, so we now know the final spec is: Bottom end: Standard block and crank Ross 86.5mm forgies, 9:1 compression Spool forged rods Standard main bolts Oil pump Spool billet gears in standard housing Aeroflow extended and baffled sump Head Freshly rebuilt standard head with new 80lb valve springs Mild porting/port match Head oil feed restrictor VCT disabled Tighe 805C reground cams (255 duration, 8.93 lift)  Adjustable cam gears on inlet/exhaust Standard head bolts, gasket not confirmed but assumed MLS External 555cc Nismo injectors Z32 AFM Bosch 023 Intank fuel pump Garret 2871 (factory housings and manifold) Hypertune FFP plenum with standard throttle   Time to book in a trip to Unigroup
    • I forgot about my shiny new plates!
    • Well, apparently they do fit, however this wont be a problem if not because the car will be stationary while i do the suspension work. I was just going to use the 16's to roll the old girl around if I needed to. I just need to get the E90 back on the road first. Yes! I'm a believer! 🙌 So, I contacted them because the site kinda sucks and I was really confused about what I'd need. They put together a package for me and because I was spraying all the seat surfaces and not doing spot fixes I decided not to send them a headrest to colour match, I just used their colour on file (and it was spot on).  I got some heavy duty cleaner, 1L of colour, a small bottle of dye hardener and a small bottle of the dye top coat. I also got a spray gun as I needed a larger nozzle than the gun I had and it was only $40 extra. From memory the total was ~$450 ish. Its not cheap but the result is awesome. They did add repair bits and pieces to the quote originally and the cost came down significantly when I said I didn't need any repair products. I did it over a weekend. The only issues I had were my own; I forgot to mix the hardener into the dye two coats but I had enough dye for 2 more coats with the hardener. I also just used up all the dye because why not and i rushed the last coat which gave me some runs. Thankfully the runs are under the headrests. The gun pattern wasn't great, very round and would have been better if it was a line. It made it a little tricky to get consistent coverage and I think having done the extra coats probably helped conceal any coverage issues. I contacted them again a few months later so I could get our X5 done (who the f**k thought white leather was a good idea for a family car?!) and they said they had some training to do in Sydney and I could get a reduced rate on the leather fix in the X5 if I let them demo their product on our car. So I agreed. When I took Bec in the E39 to pick it up, I showed them the job I'd done in my car and they were all (students included) really impressed. Note that they said the runs I created could be fixed easily at the time with a brush or an air compressor gun. So, now with the two cars done I can absolutely recommend Colourlock.  I'll take pics of both interiors and create a new thread.
    • Power is fed to the ECU when the ignition switch is switched to IGN, at terminal 58. That same wire also connects to the ECCS relay to provide both the coil power and the contact side. When the ECU sees power at 58 it switches 16 to earth, which pulls the ECCS relay on, which feeds main power into the ECU and also to a bunch of other things. None of this is directly involved in the fuel pump - it just has to happen first. The ECU will pull terminal 18 to earth when it wants the fuel pump to run. This allows the fuel pump relay to pull in, which switches power on into the rest of the fuel pump control equipment. The fuel pump control regulator is controlled from terminal 104 on the ECU and is switched high or low depending on whether the ECU thinks the pump needs to run high or low. (I don't know which way around that is, and it really doesn't matter right now). The fuel pump control reg is really just a resistor that controls how the power through the pump goes to earth. Either straight to earth, or via the resistor. This part doesn't matter much to us today. The power to the fuel pump relay comes from one of the switched wires from the IGN switch and fusebox that is not shown off to the left of this page. That power runs the fuel pump relay coil and a number of other engine peripherals. Those peripherals don't really matter. All that matters is that there should be power available at the relay when the key is in the right position. At least - I think it's switched. If it's not switched, then power will be there all the time. Either way, if you don't have power there when you need it (ie, key on) then it won't work. The input-output switching side of the relay gains its power from a line similar (but not the same as) the one that feeds the ECU. SO I presume that is switched. Again, if there is not power there when you need it, then you have to look upstream. And... the upshot of all that? There is no "ground" at the fuel pump relay. Where you say: and say that pin 1 Black/Pink is ground, that is not true. The ECU trigger is AF73, is black/pink, and is the "ground". When the ECU says it is. The Blue/White wire is the "constant" 12V to power the relay's coil. And when I say "constant", I mean it may well only be on when the key is on. As I said above. So, when the ECU says not to be running the pump (which is any time after about 3s of switching on, with no crank signal or engine speed yet), then you should see 12V at both 1 and 2. Because the 12V will be all the way up to the ECU terminal 18, waiting to be switched to ground. When the ECU switches the fuel pump on, then AF73 should go to ~0V, having been switched to ground and the voltage drop now occurring over the relay coil. 3 & 5 are easy. 5 is the other "constant" 12V, that may or may not be constant but will very much want to be there when the key is on. Same as above. 3 goes to the pump. There should never be 12V visible at 3 unless the relay is pulled in. As to where the immobiliser might have been spliced into all this.... It will either have to be on wire AF70 or AF71, whichever is most accessible near the alarm. Given that all those wires run from the engine bay fusebox or the ECU, via the driver's area to the rear of the car, it could really be either. AF70 will be the same colour from the appropriate fuse all the way to the pump. If it has been cut and is dangling, you should be able to see that  in that area somewhere. Same with AF71.   You really should be able to force the pump to run. Just jump 12V onto AF72 and it should go. That will prove that the pump itself is willing to go along with you when you sort out the upstream. You really should be able to force the fuel pump relay on. Just short AF73 to earth when the key is on. If the pump runs, then the relay is fine, and all the power up to both inputs on the relay is fine. If it doesn't run (and given that you checked the relay itself actually works) then one or both of AF70 and AF71 are not bringing power to the game.
×
×
  • Create New...