Picked up a chipped stockie ECU last night

[GTRman1992]

Was the boost increased to get those dyno figures when you swapped ECU's ? Or was it purely better tuning that upped the performance ?

[riggaP]

Turned up the bleeder to get more power. With the stock ECU I couldnt run more than 10psi without running into misfire problems (which is the most infamous problem with 33 ecus). The chipped ecu has a much better ignition timing so I can push to boost to turbo annihilation

The overall power figure is not too much greater than the stock ecu but the car pulls to the redline A LOT quicker than before. People seem to forget its not just the top end power figure, its a combination of how quickly you can get there. If I had a scanner I'd post the before and after curves but alas I do not.

[Dr_Drift]

The re-mapped ECU has a higher boost (afm) cut than stock which allowed us to increase the boost a little. apart from that there were signifcant gains in mid range response, not to mention the removal of the 180 km/h speed limiter.

All nissan ECU's are reprogrammable. I have found the adaptors for the RB25 and late model RB26 ones and just parts is over $900 per ECU

All other nissan ECU's are easily remapped.

Doc.

[benm]

If I had a scanner I'd post the before and after curves but alas I do not.

Possible that you can find someone that does? I'd be interested in taking a look

[NickR33]

Interesting...my 33 is completely stock and I just discovered the 180km/h speed cut is disabled...(I think...the needle just kept going into the blackness)

I had a look for cut wires or switches that look aftermarket but couldn't find any and the ecu looks stock as a rock this is very weird...any ideas?

[Dr_Drift]

Take a photo of inside the ECU it's more than likely chipped ex-japan... lucky you!

[NickR33]

will do...have to work out how to take the cover off the ecu first...I am mechanically challenged;)

[Dr_Drift]

four x screws

Call me on 0411 878 961 or pop in the shop if you need more detailed instructions?

[NickR33]

I managed to take it apart... just took blurry photo

Can you tell if this is stock?

http://www.skylinesaustralia.com/forums/at...achmentid=10182

[Jay95R33]

I managed to take it apart... just took blurry photo

Can you tell if this is stock?

http://www.skylinesaustralia.com/forums/at...achmentid=10182

Nick - Check the MEC number on the main EPROM, if it matches the MEC number on the outside of the ECU then it's stock.

J

[Dr_Drift]

Looks stock but some in japan can flash burn the stock chips I think so may be chipped, but not reprogrammable by me