Thursday, June 25, 2009

A Ducati 851/853 dyno chart


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I dynod an 853 kitted 748 a few weeks ago and thought I'd compare it to my old 851 just to have a look and then figured I'd put it up to show you all. It's the first 853 Strada I've dynod, with the conversion done by the owner. It's running 108/108 cam timing, 45mm slip ons and Doug Lofgren's UM097DL eprom, apart from that it's std. My 851 runs the same cam timing, open airbox lid, ST4 headers and slip ons and remapped eprom to suit. Compared to the 748 it has 1mm smaller valves and is longer stroke and smaller bore (2.5 and 2mm respectively). I also put the 853R I did late last year on for a bit more of a "this is what you can get from an 850cc 4v" sort of thing, although this run was an early one so it's a bit rough fuelling wise in places. red is 851, green is 853 and blue is 853R. As a comparison the 848's seem to be dynoing in the 115 - 120hp range, which would have seen them outpowering most 851 race bikes of 20 years ago I'd think.
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