Jump to content
SAU Community

Rb25/30det Issues :(

Finny

By Finny,
in Engines & Forced Induction

 Share

Recommended Posts

Finny Community Regular

Finny

Posted
  • Author
Posted

Dude.... I walked into a dyno shop which had 2x R33s out the front in so I assumed yeah they might know something.

I was like yeah I have an RB30DET, 40 thou oversize, big cams, forged internals, lots of head work, big injectors, big turbo blah blah blah...

Then he was like umm... why are you running a VL engine in your car..... I was like omfg I hate people who say that.. its an RB30 block with an RB25 head. he looked very confused and then said well $1500 for a tune. leave it with us for a few weeks and we will see what we can do.

A guy owns a performance shop here, I buy a lot of stuff off him and hes from QLD. He said that all of the tuners here he wouldn't even trust them to do a power run and that he is getting a tuner down from QLD to tune his car for him and hes going to hire a dyno for him to use. I am going to get him to tune his car for me when he comes down.

Cubes Grand Master

Cubes

Posted
Posted

Well go to some one else who has half an idea. Unsure how it is in tas but in little old country town Adelaide we have over 5 good tuners. There's only one that I wouldn't trust with my car.

Im sure there is a decent tuner there in TAS surely there not all numb nuts.

Regardless there's nothing special about an rb30det. Its simply a stroked rb25 so a dyno would have shown there's a fuel issue; at that point the fuel return would have been dropped and straight away it would have been known there is a fuel supply issue. That is standard fuel supply troubleshooting regardless if he didn't know an rb30det existed or not.

If the dyno tuner can't do the above then he would not be operating.

I hope you have a little more luck running the 30det on the stock ecu than I did. Anything above 6psi at 3000rpm saw fuel cut.

:D

bubba Grand Master

bubba

Posted
Posted
I hope you have a little more luck running the 30det on the stock ecu than I did. Anything above 6psi at 3000rpm saw fuel cut.

Ditto, CEF11E's remap sorted that till I could get in for a remap to suit z32 afm and bigger injectors.

  • 5 months later...
SSHatch Collaborator

SSHatch

Posted
Posted

Guessin that he has found a DYNO Tuner he can trust and that is not an idiot as he has finally got it booked in for a tune next week...

Or maybe I should ring Brad up and tell him some of the shit you been sprouting on here about the idiots that cant run dynos in TAS.

Seriously, do you think that nobody reads this crap you post and that it wont come back to bite you in the ass someday??

I am almost embarressed to admit that I have just bought a Skyline now.

Might go join a VOLVO forum...

but then your probably a technical expert over there as well arent ya Finny??? :ninja:

  • 2 weeks later...
WHITER33GTS-T Veteran

WHITER33GTS-T

Posted
Posted

How much power are you expecting from your 25/30??? Or how much did it make???

Brad at boost automotive tuned my old RB25 to 399rwkw at only 17psi, and I will be taking my engine setup there for a tune also. With a big shot of NOS to get things moving.

How does a 023 pump compare to a 044???

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

    • dbm7
      R33 GTS25 NA - Stalling when vehicle is at operating temp

      By dbm7 · Posted

      For sure the later RB26 variants had a different setup (6 cam voltage sender?), but the RB25DE/DET share the same ECU pinout/PCB footprint, and at the ECU plug it ends up being 'throttle sensor in' & 'throttle sensor out' (to A/T TCU) ...you stick a multimeter on these pins and you'll find them directly connected (0 ohms) ; I had an pair of Nissan ECUs on the bench long ago, and I noticed this throttle sensor in/out link, actually linked to an op-amp ...which was unpopulated on the NA board, but present on the T board and I went 'ah-ha!' in some moment of clarity... ...it wouldn't surprise me if they changed strategy here though (in the software and actual monitoring of this signal), because they did with other stuff (A/T signals).. and 0.45v as a trigger point makes sense, as that's what the external TCU units expect at idle ; kudos, thanks for that insight...I suppose it boils down to whether or not Consult can display real time data of that signal's voltage... ...in any event, it presents the same target...ie; rotate TPS unit to achieve 0.45v to suit both ECU&TCU, and where do you goto from there? Just disconnect TPSwitch connector and/or that plus TPSensor connector....or do you go for the throat and disconnect IACV solenoid and see if it still stalls? (probably throws a recoverable fault code and goes for default idle strategy?)...
    • PotatoCake
      Exhaust silencers/varex exhausts

      By PotatoCake · Posted

      I’m also conscious that e85 is slowly being phased out. Not all United’s have them anymore. Can’t take the risk of being low on petrol and assuming the servo will have it. 
    • The Bogan
      NC MX5

      By The Bogan · Posted

    • Kinkstaah
      Mistakes were made, my R34 Story

      By Kinkstaah · Posted

      MR HAMMER has said his piece. Painted up to avoid Rusty Rusty. Actually lines up well. (i.e it lines up the same as the unmolested GTR guard). Turns out the GTR Strut brace does foul on the bonnet vents ever so slightly. May need a little bendy bendy if intended to keep using with a strut brace. So spacing it out to clear the FAST102 is not an option. Annoyingly, the bonnet vents also foul on the heater lines running over the engine. Given this engine does not EVER require a heater, a delete loop is going to be used. Don't worry, the defogger uses the AC. The heater is basically "Do not use the aircon and turn the fan on". It will still be effective, I promise.... once I get the system regassed... Will have to revisit with unvented bonnet I suppose, and suitable strut brace. There's plans to do this and other things tonight and bleed brakes (there was a weep) and put the bumper back on, and take Good Friday morning - Because troubleshooting on the side of the road limping it home at midnight tonight is ... not very smart.
    • GabsReDeal
      R32 GTS (RB20DE) Injectors Replacement

      By GabsReDeal · Posted

      Thank you all for you assistance. I contacted Nistune regarding the support for the RB20DE along with my ECU Code (23710-10U00). They do have a map for it and added the RB20DE as a purchasable option now as well. They also added Malta as a Billing and Delivery options as this was missing. I was honestly amazed at their quick response and action, it took less than 24 hours. I also looked again at direct fit options for injectors, just in case I were to replace them. DeatschWerks seem to use a Bosch EV14 base and makes ones that fit mine at 440cc lowest, but also have 550cc at the same price. I tried looking for other direct fit options and managed to find one (also Bosch EV14 based) which includes a plug and play adapter on ebay. Did a small test with a Noid Light on the troubled injectors and all seems good, so they are pulsing properly electrically. One weird part is that they are missing on the same two cylinders as before I got the injectors cleaned. Mechanic also found this weird as he did not label the injectors and it is unlikely to have the faulty injectors be installed in the same cylinders.  
×
×
  • Create New...