Jump to content
SAU Community

Recommended Posts

Ok I know its been covered before I read all the post on it and cant find what I need know, hence I am asking this question. I am thinking about doing the z32 ecu into rb25 and just wanted to know besides the wire swaps and rom editing is there anything else you have to do in order to get the car. I read somewhere that you have to jumper something on the z32 ecu so that it reads from external memory. Is this true, and if it is what do you have to jumper? Or is it just a matter of rewire and install daughterboard with the new tune?

Link to comment
https://www.sau.com.au/forums/topic/232544-ecu-question/
Share on other sites

agreed i do ALOT of the rb20 remaps on RB25, no loss anywhere, just a few tricks to make it work perfectley.

Do some of those tricks include something to make the VCT work, or do you disable the VCT.

From what I understood the advantage of using the Z32 ecu was that it was able to be remapped and has VCT function

Link to comment
https://www.sau.com.au/forums/topic/232544-ecu-question/#findComment-4083874
Share on other sites

Another similar cheap and easy method is buying an rb20 ecu, and installing the nistune chip. Theres also two types of z32 ecu, make sure you get the right one (cant remember off the top of my head)

I know about three types the 8bit the 16bit with the section for the 20 pin header and then the 16 bit that doesn't have the section for the pin header. Is that what you were talking about? I know you can use the first two but the last there is noway to chip it.

Link to comment
https://www.sau.com.au/forums/topic/232544-ecu-question/#findComment-4084118
Share on other sites

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

    • For once a good news  It needed to be adjusted by that one nut and it is ok  At least something was easy But thank you very much for help. But a small issue is now(gearbox) that when the car is stationary you can hear "clinking" from gearbox so some of the bearing is 100% not that happy... It goes away once you push clutch so it is 100% gearbox. Just if you know...what that bearing could be? It sounding like "spun bearing" but it is louder.
    • Yeah, that's fine**. But the numbers you came up with are just wrong. Try it for yourself. Put in any voltage from the possible range and see what result you get. You get nonsense. ** When I say "fine", I mean, it's still shit. The very simple linear formula (slope & intercept) is shit for a sensor with a non-linear response. This is the curve, from your data above. Look at the CURVE! It's only really linear between about 30 and 90 °C. And if you used only that range to define a curve, it would be great. But you would go more and more wrong as you went to higher temps. And that is why the slope & intercept found when you use 50 and 150 as the end points is so bad halfway between those points. The real curve is a long way below the linear curve which just zips straight between the end points, like this one. You could probably use the same slope and a lower intercept, to move that straight line down, and spread the error out. But you would 5-10°C off in a lot of places. You'd need to say what temperature range you really wanted to be most right - say, 100 to 130, and plop the line closest to teh real curve in that region, which would make it quite wrong down at the lower temperatures. Let me just say that HPTuners are not being realistic in only allowing for a simple linear curve. 
    • I feel I should re-iterate. The above picture is the only option available in the software and the blurb from HP Tuners I quoted earlier is the only way to add data to it and that's the description they offer as to how to figure it out. The only fields available is the blank box after (Input/ ) and the box right before = Output. Those are the only numbers that can be entered.
    • No, your formula is arse backwards. Mine is totally different to yours, and is the one I said was bang on at 50 and 150. I'll put your data into Excel (actually it already is, chart it and fit a linear fit to it, aiming to make it evenly wrong across the whole span. But not now. Other things to do first.
    • God damnit. The only option I actually have in the software is the one that is screenshotted. I am glad that I at least got it right... for those two points. Would it actually change anything if I chose/used 80C and 120C as the two points instead? My brain wants to imagine the formula put into HPtuners would be the same equation, otherwise none of this makes sense to me, unless: 1) The formula you put into VCM Scanner/HPTuners is always linear 2) The two points/input pairs are only arbitrary to choose (as the documentation implies) IF the actual scaling of the sensor is linear. then 3) If the scaling is not linear, the two points you choose matter a great deal, because the formula will draw a line between those two points only.
×
×
  • Create New...