Self Tuning Eprom's For Such Vehicles As Pulsars And Vn Group A

[REdges O Rails]

Hi there, Has any one programmed their own copgy back EPROM's and then soldered them back for cars such as Nissan Pulsar 90 and VN 88 Group A Aero.?? Apparently when they are tuned correctly you gain more power than the chips you can buy for power gains..

Im trying to find a walk through or someone with some knowledge on self tuning and programming stock ECU's..

If i can find a detailed walk through in regards to removing, programming and can find a decent base tune map i might have to invest in an EPROM programming kit from dick smith for $100... Maybe that degree in Computer Systems Engineering will come in handy after all..

It should be an interesting learning experience self programming these EPROM memory chips and finding the correct ratios and timing positions... I could imagine it would be quite straight forward once the existing assembly language can be accessed and altered and i would be changing around a few array values which would correspond to the throttle mapping positions for the A/F ratios.

If someone could tell me where these EPROMS are available in Australia and what type they are...(I think that the 1.8 litre 90 pulsar and the VN commodores from that era have the same type of EPROM and can be replaced with the Holden Camira type EPROM which is fully reprogrammable and i beleive is a type 808 27C256 -- dont quote me on those numbers... If someone with some tuning knowledge could back that up for me that would be very much appreciated as i would not mind buying a coupleof chips and having a play around to get some more power from my rides..

REgards... Chris

[Jack88]

As this is a skyline fourm your probly shit outa luck with advice from us. try a holden fourm.

[BLSTIC]

Ummm... Yeah...

A guy called Ken (or was it Kevin?) Young did this ages ago. His program is called kalmaker and can completely and utterly reprogram any of the Australian GM-Delco computers. Google 'Kalmaker'.

Alternatively the DIY-EFI crowd (Which can also be googled) can help you out. I'm subscribed to their mailing list, but most of the stuff goes over my head, I'm more interested in the mechanical side of their problems (Turbocharged 350 chevs using a holley 4 plate throttle body and a re-programmed computer that came off a 6 cylinder car are quite interesting things to read about).

[wisey18]

Jump on PGA (Pulsar Group of Australia) and ask there. I don't know much about the N13's.

[mad082]

pulsar group of australia will tell you all you need to know about this. pretty sure they have been doing it for a while now (i remember seeing a thread on there about it a while ago)