Jump to content
SAU Community

Recommended Posts

Hey guys, i have a few questions in regards to wiring the EMS to an RB25. We're doing it ourselves and we have hit a few problems, the manual EMS provides doesnt have a lot of information so i was wondering if anyone with any experience with these could help me out.

1) Can you wire the VVT, and where to on the ECU?

2) Fuel Pump to Aux 1?

Tacho Out to Aux 2?

3) When wiring coils to the ECU, the ECU supplies ignition 1, 2 and 3. Does:

IGN 1 - coils 1 and 6?

IGN 2 - coils 2 and 5?

IGN 3 - coils 3 and 4?

4) Can you have TPS(from RB30) closed and TPS wide open with automatic transmission?

5) The ECU provides two wires for the injectors? Which 3 injectors go to each driver?

Any information would be awesome. Cheers for taking time to read anywayz!

Link to comment
https://www.sau.com.au/forums/topic/189892-ems-4424-v4-to-rb25-ser2/
Share on other sites

Hey guys, i have a few questions in regards to wiring the EMS to an RB25. We're doing it ourselves and we have hit a few problems, the manual EMS provides doesnt have a lot of information so i was wondering if anyone with any experience with these could help me out.

1) Can you wire the VVT, and where to on the ECU? If your EMS is not to old it will have 4 AUX outputs,Use one for the VVT,AUX to one pin on VVT and 12v to other. Tuner can setup.

2) Fuel Pump to Aux 1?Yes Turn on in software

Tacho Out to Aux 2?Yes Turn on in software

3) When wiring coils to the ECU, the ECU supplies ignition 1, 2 and 3. Does:

IGN 1 - coils 1 and 6?

IGN 2 - coils 2 and 5?

IGN 3 - coils 3 and 4? Yes to all.

4) Can you have TPS(from RB30) closed and TPS wide open with automatic transmission?Hook To the 3 pin plug that is a pot resistor not the one that is on/off.

5) The ECU provides two wires for the injectors? Which 3 injectors go to each driver?Should have 3 outputs so use INJ 1/2/3 batched.

Any information would be awesome. Cheers for taking time to read anywayz!

If your EMS has 2 Aux outputs and 2 inj drivers then this is not the ECU for you,Trade for later EMS or other. Read thru the reply as there is notes added. Edited by N I B

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

    • Yeop... binned it   This will be a summary will not many pics atm and cbf  Fixed the samsonas - it was totally munched Put a new precision 7675 T4 on with proper split pulse mani Got to Sydney to get to car - drove to canberra to get racecar - drive back to sydney that night Next day all day at Plasmaman putting on new clamps cleaning some things up and adding another large engine oil cooler sitting at the rear above diffuser to keep things cooler Next day - Tuesday - on Dyno - killer wikid awesome pumped out really good numbers - more mid range and on lower boost levels Wednesday - first prac - all day again getting the suspension right - had to borrow front suspension again - out do a lap come in - out do a lap - in - what i had just couldnt handle the load at the more consistent higher speeds - got a lap in at the end of the day that was pretty reasonable  Put it this way that lap wouldve had me in 4th in Pro am for the whole event - with only 700 hp and used tyres Thurs first official prac day - lap out warm up - with above setting and 80% effort took corners 1,2,3 and into 4 car felt awesome -  rear came around out of nowhere bang into the wall near front on at whatever 140 kmph Done, over, gone Just one of those how did that happen apparently as all indications show nothing out of the ordinary Got to spend the rest of the time at the event like I hadnt done before - was actually Ok mainly as I had my family and my boy is 9 and got treated like a rockstar Long trip home, lost a trailer wheel in nowhere land, X5 airbag suspension gave up half way across nullabour and rode on bumps stops (its now completely fine) had to do a 19 hr drive day on day 3 as accommodation got screwed up so just had to keep driving till found a town with some Now to reassess - hopefully the motor and other things are OK but yet to be seen too. There is no easy fix there is no i'll just order that part and get it sent - we'll have a talk to people see what can happen and what the go is but at minimum its rebuild from scratch struts forward and alot of time effort and $ should and if I return and if but maybe/ when  I have the cage tied into the front strut towers - if I didnt have that things couldnt been worse you can say its just a front end but if you know what goes into these cars... you'll know what that actually means in reality   Car was very fast. Disappointing we just didnt get to show it Effort doesnt win you races though     Apparently this is motorsport !  
    • Thanks, will do that.  Thankfully they still feel great.
    • Yeah man, absolutely. You can try pushing me all the way in swapping the R34 for an E9x M3 
    • It's almost certainly going to be some amount of pads compound transfer onto the rotors. It will probably go away after you've run them for a bit. If not, pull it all out, lightly sand the rotors, scuff the pads, and rebed.
    • no one recommending speedtek gearsets?   i'm in the same boat as Cosline but rwd, I am holding boost back in third to 600nm at the hubs to save the gear as i make nearly 750nm at the hubs on a mainline
×
×
  • Create New...