Jump to content
SAU Community

Recommended Posts

While on the topic just a quick question because i can't be bothered searching through 100 posts. You can't run an RB20 remapped ECU on an RB25 Series 2 because of the internal ignitor, correct???

Hm... ive never heard of this problem... keen to hear more also.

Pretty much what i remember reading a little while ago is because series 1 has an external ignitor for the coil packs and series 2 doesn't, a remapped RB20 ECU wont run on a series 2 unless you run an external ignitor.

Hmmm i guess i might just do some searching.

Another guy in another thread posted that, r32 ecu was straight plug in.. Only concer is no VCT support..

quote:

no probs what so ever, plugs straight in, however the 20 ecu cannot run the VCT, was no real issue for me as with the remap done, timing changed, boost raised it still has bucket loads of torque down low anyway!

Getting full boost at 2500 rpm, makes 215 rwkw on 0.9 bar with stock turbo. Drives like a dream, smooth clean power with awesome responce!

Hmmm, the reason i asked about the RB20 ECU on a series II is because one of my mates is a tuner and has a spare RB20 ECU that he could put an RB25 map on and tune it for me. At the moment my car is hitting boost cut/ airflow cut (whatever the hell you want to call it) at 4000rpm on 1 bar of boost on my HKS turbo.

I have 2 options that are possible to do at the moment:

1) Modify a standard actuator to fit the HKS turbo instead of the HKS adjustable actuator and run less boost to avoid the boost cut.

2) Remapped RB20 ECU to get rid of the boost cut and be able to tune it.

Now i know that a full ECU replacement is the best choice, and i will be doing that in the future, just dont have the funds at the moment so im looking at only the 2 above solutions.

So yeah thats my problem at the moment, if i can get the RB20 ECU to run on the series II its going to solve the boost cut problem, because at the moment its giving me the sh*ts.

I didn't know nistune could do the R33 stuff yet.... hmm might have to chat to Matt...

We use daughterboards and real time emulation same as we have on the RB20's for a couple of years now :)

Edited by Dr_Drift

i just heard that they are testing.. it was on their site. They will need someone to test it for them lol

I didn't know nistune could do the R33 stuff yet.... hmm might have to chat to Matt...

We use daughterboards and real time emulation same as we have on the RB20's for a couple of years now :thumbsup:

I think if you remove the kick panel and lie it on the floor, it won't be standed anymore.

ROFL....i kill me !!! >_<

:laughing-smiley-014: the lame/funny approach to being a spelling nazi :thumbsup:

if your in sydney, i've heard hills motorsport does remaps for r33 gtst's for $350

Edited by into oblivion
if your in sydney, i've heard hills motorsport does remaps for r33 gtst's for $350

These are the simple plug in chip upgrades, and to the best of my knowledge CANNOT be tuned in real time, and also require purchase of a new SINGLE USE CHIP every time you want a new map loaded...

The method we are using is converting the R33 to run a single 27C256 eprom, which can be re-used, as well as tuned in real time with full map tracing etc etc... Hence, the initial $$ are a bit higher, but the end results are WELL worth it.

hehe yea the $$ is scarin me a little.. But i might be a guinee pig and try it out..

so when did you say you are coming to sydney?

Also you got any dyno figures sam? just to see what a similar rb25 with basic mods can acheive..

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

    • Yes. You will need to get the original boost sensor and wire it in. That is.... if you plan to use a stock ECU - even a Nistuned ECU. The Nissan ECU will not operate correctly without it connected. And yes, it will do annoying stuff like you are experiencing. You will almost certainly be better off with some aftermarket ECU, than trying to hunt down rare sensors.
    • Ok so ABS/TCS is "not" the problem. Yeah i know now about the ABS with Nistune(i told that to the Nistune guy) but iam not 100% why or why i dont have ABS. ABS cube is in the engine (always has been) but i had braked couple of times rly hard and brakes just locked and scream. Does all Skylines have ABS cube? That boost sensor https://www.sau.com.au/forums/topic/367633-wtb-r34-gtt-turbo-pressure-sensor-pics-inside/ Is this it? I need to ask but i have a picture of engine bay and i do not see that (100% is not in that place) If i do not have this the car can do what mine is?(cutting around 4000 rpm) Here is the pic of my engine bay(only one i have) BUT i think i dont have that cuz loom was used from my RB20DE NEO and i know (obviously) that it does not have boost control or any wire to that...) so maybe that is the problem? (i dont know for 100% if that car where the engine is from had that)...but i dont have the loom from that
    • I'm with you here. It's either loom has an issue, OR, injectors are not functioning properly. It could even be they're just constantly dribbling, hence the wet, but not firing.
    • Depending on how long the car sat it is very possible for injectors to be stuck open or closed, I'd get them cleaned and flow tested. Other than that, obviously when the loom changes and the car doesn't start any more....the loom is suspect so some tracing / comparing may be required
    • Harness is for a s1 Rb25det, and it is engine and lower harness.  the old harness had broken off plugs and was in very rough condition/exposed wires and splices etc. it is not able to be put back on the car, I could visually inspect to see if they had rewired any pins on the ecu plug. The fuel pump definitly isn’t turning off it’s an external pump and very loud you can hear it. Will look at the other harness tonight, am also going to pull the fuel rail and watch the injectors spray, will update here with what I find. Pretty sure at this point it has to be something to do with injectors because car will fire up on starting fluid and cas is clicking the Injectors. Fuel pressure is steady 43psi 
×
×
  • Create New...