S14Drift! Posted August 12, 2003 Share Posted August 12, 2003 I will reprogram a 300ZX ECU for my RB25DET / Silvia, cause I can't find a R33 one(I live in Canada), and cause I can't reprogram R33. So my question is, what are the stock timing map like? I guess it will be very close to RB20DET , does it make sense? I already got the RB20DET...but I would prefer to make sure that they are like RB25DET. Also, does anybody as the firing order for RB25DET ? (I have to compare with a 300ZX engine..if there are not the same, I will switch injector and coil pack wiring. Link to comment https://www.sau.com.au/forums/topic/22514-where-can-i-find-timing-map-for-rb25det/ Share on other sites More sharing options...
BOOSTD Posted August 13, 2003 Share Posted August 13, 2003 You can get a RB25 ECU for $100, I would save all the heart ache and buy one. If you are still keen on re-inventing the wheel do a search for "power fc map" I posted my ignition and fuel maps a while back. Link to comment https://www.sau.com.au/forums/topic/22514-where-can-i-find-timing-map-for-rb25det/#findComment-482935 Share on other sites More sharing options...
meggala Posted August 13, 2003 Share Posted August 13, 2003 the ecu might be different you could do defiatly use a rb20 one. the maps and address files are on a site called http://www.925style.com Link to comment https://www.sau.com.au/forums/topic/22514-where-can-i-find-timing-map-for-rb25det/#findComment-482953 Share on other sites More sharing options...
TomR33 Posted August 13, 2003 Share Posted August 13, 2003 There is an R33 Ecu for sell on ebay: http://cgi.ebay.com.au/ws/eBayISAPI.dll?Vi...&category=31250 Try getting 95 model as they have better fuel maps. I got 204 rwKw with stock 95 model ECU and stock turbo. Link to comment https://www.sau.com.au/forums/topic/22514-where-can-i-find-timing-map-for-rb25det/#findComment-483868 Share on other sites More sharing options...
Lippo Posted August 13, 2003 Share Posted August 13, 2003 So if i have a 93 or 94 model,then it will go better with a 95 computer in it? Link to comment https://www.sau.com.au/forums/topic/22514-where-can-i-find-timing-map-for-rb25det/#findComment-483891 Share on other sites More sharing options...
S14Drift! Posted August 13, 2003 Author Share Posted August 13, 2003 Is there Daugtherboard available for this ECU?? did Badbiki made one for this ECU ? Link to comment https://www.sau.com.au/forums/topic/22514-where-can-i-find-timing-map-for-rb25det/#findComment-484579 Share on other sites More sharing options...
TomR33 Posted August 14, 2003 Share Posted August 14, 2003 Lippo: Yes, it will probably go better with a 95 model ECU S14Drift: The Daughterboards are not easily available and expensive. Badbiki doesn't have one, they are more complicated. You can get a new Hitachi H8-534 CPU from www.grid.co.jp and program it with new maps but it's like $300 windowed (reprogrammable) CPU and that's not all you need. Link to comment https://www.sau.com.au/forums/topic/22514-where-can-i-find-timing-map-for-rb25det/#findComment-484732 Share on other sites More sharing options...
S14Drift! Posted August 14, 2003 Author Share Posted August 14, 2003 Originally posted by TomR33 You can get a new Hitachi H8-534 CPU from www.grid.co.jp and program it with new maps but it's like $300 windowed (reprogrammable) CPU and that's not all you need. Sorry but I don't read japanese.... I have an eprom programmer, eprom eraser...and all that, I have been tuning SR20DET in Montreal(Canada) for almost a year now... I can get a 300ZX ECU for less than 100 Aus...and then reprogram it... so paying 100$ for something I can't retune doesn't make sense to me. Did the R32 RB20DET had the VTC too ? if so I can probably buy on of these (cause the have eprom on board) and tune that? I would prefer a RB ECU for only one reason, they have 2 knock sensor input...and the 300 ZX only has 1.... Link to comment https://www.sau.com.au/forums/topic/22514-where-can-i-find-timing-map-for-rb25det/#findComment-486239 Share on other sites More sharing options...
TomR33 Posted August 15, 2003 Share Posted August 15, 2003 S14Drift:Try this if you can't read Japanese, it will give you a rough English translation: http://babelfish.altavista.com/babelfish/u...ml%2F28_07.html The Rb20DET don't have VCT. That is the biggest problem in adapting Rb20DET ECU to RB25DET engine. Some people have done it by adding an additional board with a specially programmed PIC microcontroller and a transistor to control VCT. Would you be able get me one of those 300ZX ECUs for less than $100 AUD? Link to comment https://www.sau.com.au/forums/topic/22514-where-can-i-find-timing-map-for-rb25det/#findComment-486480 Share on other sites More sharing options...
S14Drift! Posted August 15, 2003 Author Share Posted August 15, 2003 Where can we get data sheet for that chip ? (pin out and instruction) Link to comment https://www.sau.com.au/forums/topic/22514-where-can-i-find-timing-map-for-rb25det/#findComment-486592 Share on other sites More sharing options...
S14Drift! Posted August 15, 2003 Author Share Posted August 15, 2003 Originally posted by TomR33 Would you be able get me one of those 300ZX ECUs for less than $100 AUD? The best place is Ebay.com There is a lot of these ECU for sale (at least 3 to 5 per week), some went for 38 $ US, and the last one I missed went for 43$ US... If people don't want to ship it to Australia, I could have it ship here in Canada, then ship it back to you Link to comment https://www.sau.com.au/forums/topic/22514-where-can-i-find-timing-map-for-rb25det/#findComment-487553 Share on other sites More sharing options...
rs73 Posted August 16, 2003 Share Posted August 16, 2003 I was told that you can't put a S2 ECU into a S1 car. However if 95 model ECU is also a S1, they might work with 93-94 car. Link to comment https://www.sau.com.au/forums/topic/22514-where-can-i-find-timing-map-for-rb25det/#findComment-487807 Share on other sites More sharing options...
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