Jump to content
SAU Community

Recommended Posts

Personally, I am going with the SAFC 11 current version, for ~$400 this gives a good A/F ratio result. You can't play with ignition as the auto needs ignition retard to give smooth shifts and not overload the transmission with torque while changing gear (prolongs gearbox life). So looking at other options with ignition control capablity (EManage for example) is a waste of money.

Full ecu upgrades, Power FC for example, aren't on the cards for me as they have no programming for the auto. Sure they run the engine itself just fine, but not the auto for the reasons above.

I am looking at around 200 awkw (that's about double the standard kw) and I have seen plenty of SAFC's work perfectly well at that power level on other RB25DET's. So the decision is pretty easy for me.

Hope that helps:cheers:

http://www.bikirom.com/

do a plug in board to allow remaping a r34 rb25 neo

anyone know if its the same ecu in the neo equiped stagea's ?

what about the hardcore aftermarket ecu's like motec and autronic ? I have seen autronics control auto sr20s before .

what about the hardcore aftermarket ecu's like motec and autronic ? I have seen autronics control auto sr20s before .

Nope, they have no shift logic. What you can do is use one of their outputs to change gear. Stuff like at 60 kph change into second, at 120 kph change into third etc. This is OK for a drag car, but not realy "shift logic". Where you want smooth up and down changes, down hill, up hill, under load, cruising etc etc

I was told that the lines of code to get an auto to changes gears properly, all the time, was over 1,000 times more than that used to get the engine to run. That's why you can buy manual car ECU's easily, but very very few auto ECU's. In fact the only one I have seen is the Power FC for Toyota Chasers and my understanding is it has Toyota auto shift programming anyway.

:)

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

    • Drain it. I got official Matic D but you can get whatever is listed as Matic D compatible.
    • Thanks guys,  Yeah I should at least have them dynoed, at least then I know what I've got as a starting point.  The springs on these are hard as rocks. I vaguely remember Russman saying he was going to sell the shocks to me with the rocks fitted, as he was keeping the softer springs for his new setup.  I didn't click at the time but of course that was to let me know the shock/spring wouldn't be matched.  I also remember pricing up new springs around 2014-15, but, house, money etc. it never happened. So that was another reason to have them rebuilt. I have rebuilt the forks on many motorcycles so I think I could handle the seals on these easily enough, but getting the valving right would be a rabbit hole I cbf exploring.  Duncan, interesting to hear RP was tuning these back then. I might give them a call.  In the mean time I have been busy fitting sway bars. The Whiteline rear sway bar I purchased 15 years ago finally got fitted, along with the Whiteline front bar that showed up last week. Just waiting on new links for the front sway bar to finish that off.  And my spare set of advan AVS VS5's should be back from the powder coaters in a Pearl White finish sometime this week, with a set of Hankook RS4's lined up for fitting.  And then I just have all the suspension bushes to do. A comprehensive kit is on the way... Lots to do before the Ararat hill climb. Cheers guys 🍻   
    • Nice car! I’m glad folks in the US have gotten past the FnF and are buying real cool cars like the 260RS I was with a bunch of mates in Portland about a year ago and spotted a green Stagea (just a regular 2.5T AWD) parked about 2 blocks away and they were like “a what?” So I made a bet with them for a round of beers and said “ok one of you run down there and tell me if the steering wheel is on the correct side” 5 mins later the American comes trudging back up the hill and goes “he’s right guys. Ok what beer do you want?”
    • Should replace OR drop the tank, give it's good clean. Might be worth replacing that entire fuel level/pump/cradle thing with this: https://frenchysperformancegarage.com/products/fpg-s13-180sx-r32gtst-single-pump-hanger-kit-billet-hat-6-v3-fpg-089?gQT=2  
    • Thank you so much for the help
×
×
  • Create New...