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Reprogramming Shift Points On A Series 2 R31 Auto

busboy
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busboy Apprentice

busboy

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Hello again,

A while back I wrote in to say I was thinking of putting a RB30 motor in a small Toyota bus. I got lots of very good advice, thank you, but it left me with lots more investigation to do. Well, to cut a long story short, I went through just about every engine combination recommended (or possible), but I kept coming back to the RB30. It came down to a two things: (1) the RB30 has a terrific reputation and (2) the diff ratios available to me were just too low for the bigger holden V6s or a Ford straight 6.

Finally, after a long trip on the original 2.4 litre a month back it struck me that the RB30 would have HEAPS of power for the job, so I fished around and found a pretty decent 88 model skyline with 200,000km on it, registered and in very driveable condition. Aside from one sticky lifter and a slighty rough shift on the auto, it seems good, and it is in having the auto serviced now just to be sure.

Assuming they come back to me and tell me it is ok, I will be fitting the engine and auto in the bus this weekend. But it has occured to me that the shift points on the auto might be a bit out. On the one hand it will be pushing around the equivalent of the old Pajero in weight, with a lot less rolling resistance but more windage, on the other hand it will be doing so with a lower diff ratio, working out at 2600rpm at 100km/h.

So can anyone tell me if it is possible to reprogram the auto computer on these? From what I have read it seems that I have a series 2, and I have read that these use the engine management computer to control the auto. I can see how to reprogram the injectors etc in the engine, but I can't see any reference to reprogramming the shift points.

Thanks you,

Matthew

P.S. At the end of the process I will have a very stripped out 88 skyline to dispose of, from the north west peninsula of Adelaide, and it is too good to throw away. I'll be open to offers.

ClutchBurndout-:( Grand Master

ClutchBurndout-:(

Posted
Posted

dont go exactly off what i say but, you will need an aftermarket computer, they can do everything, i remember speaking to someone in regards to ecus for fords and they can adjust the point in when the gear changes, i doubt you could change a stock ecu

busboy Apprentice

busboy

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Posted
dont go exactly off what i say but, you will need an aftermarket computer, they can do everything, i remember speaking to someone in regards to ecus for fords and they can adjust the point in when the gear changes, i doubt you could change a stock ecu

Right... sounds like it will best if I see how it goes then.

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