P7 vs P8 Ok can anybody tell me how to tell the difference between the P8 and P7 ECU ?? I need to check which ECU is fitted coz if it's a P7 I'll be chasing after a P8. cheers Neil |
What's the number on the sticker, or stamped on the mounting lug? Alternatively, if you're feeling adventurous, whip the lid off and find the clock chip - if its 4.000Mhz it's a P7, if its 8.000Mhz its a P8. Hope that this helps |
the number on the sticker is: WU43.07/20A.20 |
99.99% sure that's a P7 as its almost identical to the number of the ecu on my 851, which has an FIM chip, open airbox and a 50mm full system on it. [Edited on 3-5-2005 by paynep] |
My 916 (that has a P8) has an under-seat sticker that reads: Engine Family: SCG.92P8GARA |
so does anybody know if the 916 P8 ecu is compatable with the 851 ? I've been told that it's a straight swap but I'm not sure if the unit from a 916 is the same size etc ?? Can't you tell I'm new to Dukes !!! |
Well the P7 is your basic FI computer, with the P8 you can get rear cylinder correction. I have a P8 on my 1990 851 Strada and what a differance it made. Smoother power over entire rev range, better idle. This is possibly due to map for 888 that I had made as a starting map is closer to bikes actual needs. My P8 came from a 1998 Laverda 668 Ghost that I parted out, and was a straight bolt in. If youd like I can get some pics tomorrow of the side by side of them. [Edited on 7-5-2005 by Ducman851] |
I think you can swap them but you'll need a P8 chip for your bike. They come up on E-bay but I'd get one from JHP so you know exactly what you've got. Rgds, Rob |
Note on P7 vs P8 ECU's: All 851's and 888's up to serial #'s 000508 have P7 ECU's. 888's from # 000509 onwards have P8 ECU's. |
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