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View Full Version : 900ss - Carbed vs IE Frame Weights

phillc
27-May-2009, 16:53
I seem to recall someone on here (Paul Payne?) saying that the 900ss carbed frame was lighter than the 900ss injected frame.

Can anyone confirm this? And confirm what the actual weight difference is?

What accounts for the weight difference? Is the carbed frame as strong as the injected frame?

Following on from that, how interchangeable are the two? Will an injected engine, swingarm and forks fit comfortably into a carbed frame?
paynep
27-May-2009, 19:40
I don't have an IE frame to weigh, but the carbed ones are all around the 10kg mark, which is lighter than a monster 620 one.

I'd already cut the diagonal rail between the carbs on my first frame to fit flatslides back in 2005, but the current one still has it in. Airbox, forks, yokes and engine are all IE (620 of course.....ahem) and I've discovered that the 750 and 900 parts are the same size! Don't know about 800 and 1000 but reckon they will all go as the frame is mainly the same as the 620/750/900.

Any post-92 swingarm should fit at the engine end and as only one Ohlins is listed for the entire range from 400-1000 I can't see a problem.

HTH
phillc
28-May-2009, 01:46
Thanks Paul.
ENGAKATS
28-May-2009, 05:55
Phill, it is possible to fit a 1000ds engine in a pre '98 SS frame. Look here: http://www.ducati.ms/forums/showthread.php?t=55069

http://i153.photobucket.com/albums/s210/floundering101/IMG_3057.jpg


I don't know what is the weight difference between the two frames though.

Many people racing SSs cut the rear part of the frame and install subframes similar to the SBK ones. They are lighter and in case of a (big) crash, you could get away by just replacing the subframe only. Are you allowed to do that on your race bike?
phillc
28-May-2009, 08:38
Many people racing SSs cut the rear part of the frame and install subframes similar to the SBK ones. They are lighter and in case of a (big) crash, you could get away by just replacing the subframe only. Are you allowed to do that on your race bike?

As far as I can see, according to the technical regulations overview published here - http://hottrax-motorsport.co.uk/2009%20HMRC%20TECHNICAL%20REGULATIONS%20OVERVIEW%2 02009-2.pdf - modifications to the frame and subframe are allowed in the Pro-Superbike class. This could be a good, cheapish way to save some weight for sure.