R33 Rb25de Mines Ecu Chip

[alex1991s]

Hey just wondering has anyone installed a Mines ECU chip for there 33 RB25DE and if so, whether its worth doing.

http://cgi.ebay.com/JDM-MINES-ECU-CPU-Niss...34.c0.m14.l1262

[Eug]

would think the japanese fuel maps would be unsuitable for australian road conditions.

[SKiT_R31]

yes, goes off its f**king head, 98ron fuel is fine, had one on my 30de when it had lower compression (a tad more than a stock 25de), went fine.

[Eug]

well i'd go with first hand experience... go for it then!

[SKiT_R31]

Did you end up getting it? Mine didnt have a limiter, had alot more timing in the top end, far better fuel mixtures, sharper midrange (change in vct?), and was alot happier over 6000rpm, seemed to work really well with my cams.

I've actually still got it, but for some reason it's dropped cyl 1, cant see anywhere inside it where anything may have happened and the plug is fine, would anyone know if the chip can be transplanted into another ecu and who can do it?

[alex1991s]

Na didn't end up getting it, I read in another thread that the turbo version of the chip could cause detonation because they are meant to run on 104ron, so I didn't want to risk it. There are more for sale I think, so ill have a look into it.

[SKiT_R31]

Na didn't end up getting it, I read in another thread that the turbo version of the chip could cause detonation because they are meant to run on 104ron, so I didn't want to risk it. There are more for sale I think, so ill have a look into it.

Detonation is less of an issue on an N/A engine, and i always found i could increase the ignition timing ALOT and never had detonation issues with stock compression. If your engine was to have detonation issues, you could always just wind the base ignition timing backwards, making the ignition map on the ecu the same just less a few degrees accross the whole range, which is all you need when running lower quality fuel. Alternatively you could get some colder spark plugs, etc.

The threads you are talking about would be for the turbo version, and i bet the users werent on stock boost, so it would have been a case of not being worth the drop in boost vs power increase from the more ignition timing etc, since you cant up the airflow of an N/A engine, i doubt you would have any issue (esp considering N/A's have alot of legroom as far as extra ign timing is concerned, whne stock).

Edited April 21, 2009 by SKiT_R31

[alex1991s]

Detonation is less of an issue on an N/A engine, and i always found i could increase the ignition timing ALOT and never had detonation issues with stock compression. If your engine was to have detonation issues, you could always just wind the base ignition timing backwards, making the ignition map on the ecu the same just less a few degrees accross the whole range, which is all you need when running lower quality fuel. Alternatively you could get some colder spark plugs, etc.

The threads you are talking about would be for the turbo version, and i bet the users werent on stock boost, so it would have been a case of not being worth the drop in boost vs power increase from the more ignition timing etc, since you cant up the airflow of an N/A engine, i doubt you would have any issue (esp considering N/A's have alot of legroom as far as extra ign timing is concerned, whne stock).

Alright so basically plug and play, and if I'm concerned about detonation, wind the ignition timing backwards, cheers. Ill have a look around for another one.

[adis]

I use one on my turbo gts and have no probs. Took the car on dyno, showed no problems on 12 psi, made 208KW. Mines made big difference.