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Author Topic: Waste of money .....  (Read 54502 times)
MonsterHPD
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« Reply #180 on: February 05, 2021, 08:04:16 AM »
Quote from: howie on February 05, 2021, 07:03:23 AM
Under 10% is good, so you are fine.

Thanks. I can sleep well tonight :-)
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Monster 900-2002 (sold, alive and well in the UK), 749R / 1100 HYM combo for track days, wifes / my Monster Dark 800-2003 (not entirely "Dark" anymore and a personal favourite) , 50% of 900SSie -2000 track bike for rainy days-now with tuned ST2 motor and Microtec ECU. Also parked due to having been T-boned on track.
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« Reply #181 on: February 05, 2021, 11:31:26 AM »
I think the cranking cylinder pressures are low because of the ST2 cams.
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« Reply #182 on: February 06, 2021, 05:02:00 AM »
Quote from: koko64 on February 05, 2021, 11:31:26 AM
I think the cranking cylinder pressures are low because of the ST2 cams.



That could well be a factor. I do think I´ve done a cranking test at some time before I did the modification, but I don´t remember any numbers and I can´t find any notes. So as long as the numbers ar consistant and even between the cylinders I´ll be content :-)   
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Monster 900-2002 (sold, alive and well in the UK), 749R / 1100 HYM combo for track days, wifes / my Monster Dark 800-2003 (not entirely "Dark" anymore and a personal favourite) , 50% of 900SSie -2000 track bike for rainy days-now with tuned ST2 motor and Microtec ECU. Also parked due to having been T-boned on track.
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« Reply #183 on: February 06, 2021, 11:11:04 AM »
 waytogo Yes its all good and starting will be easier too as those cams will bleed off some cylinder pressure at cranking speed. The benefit is at other parts of the rev range as the dyno shows.  Guess it's a case of cranking and mechanical compression Vs Dynamic and Potential compression.

We fixed a very hi comp 944 Superlight that killed its starter motor and sprague bearing by using hotter cams from a 900ie (Speeddog sold them to me Smiley.). It was the highest compression desmodue street motor I had dealt with at 12-12.5 : 1. Reducing cranking cylinder pressure solved the starting problem and increased peak hp. The ST2 cams leave room for more compression and big bore cylinders for the next build Grin
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Howie
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« Reply #184 on: February 06, 2021, 02:01:52 PM »
I had no idea the ST2 cams were that hot.  What a wonderful way to increase cranking speed!
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koko64
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« Reply #185 on: February 06, 2021, 03:36:58 PM »
That Superlight could barely turn over after a few squirts of the FCR accelerator pump, comp must have been sky high with the fuel in the chamber. I remember thinking, "that bike could use some more cam!"

The 900ie and ST cams are the hot oem desmodue cams. A curious choice for a sport tourer though, you'd think 900V cams would have been better for the ST2. The ST2 cams have more duration than even the 900ie. I was surprised when I read the Bikeboy cam chart (which is like the great library of Alexandria for ducatista). waytogo

I'm looking at some 900V cams (and valves) right now, and at my 750.. bang head laughingdp
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MonsterHPD
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« Reply #186 on: February 15, 2021, 10:58:47 PM »
Quote from: koko64 on February 06, 2021, 03:36:58 PM

.......

I'm looking at some 900V cams (and valves) right now, and at my 750.. bang head laughingdp

I hope we will see a thread on that soon :-)
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Monster 900-2002 (sold, alive and well in the UK), 749R / 1100 HYM combo for track days, wifes / my Monster Dark 800-2003 (not entirely "Dark" anymore and a personal favourite) , 50% of 900SSie -2000 track bike for rainy days-now with tuned ST2 motor and Microtec ECU. Also parked due to having been T-boned on track.
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« Reply #187 on: February 16, 2021, 01:18:04 AM »
Quote from: MonsterHPD on February 15, 2021, 10:58:47 PM
I hope we will see a thread on that soon :-)

Now that's a waste of money! laughingdp
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« Reply #188 on: February 16, 2021, 02:32:06 AM »
 waytogo
Quote from: koko64 on February 16, 2021, 01:18:04 AM
Now that's a waste of money! laughingdp
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Monster 900-2002 (sold, alive and well in the UK), 749R / 1100 HYM combo for track days, wifes / my Monster Dark 800-2003 (not entirely "Dark" anymore and a personal favourite) , 50% of 900SSie -2000 track bike for rainy days-now with tuned ST2 motor and Microtec ECU. Also parked due to having been T-boned on track.
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« Reply #189 on: July 03, 2021, 09:40:54 AM »
How is the summer riding and testing coming along?
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« Reply #190 on: July 04, 2021, 03:50:21 AM »
Quote from: koko64 on July 03, 2021, 09:40:54 AM
How is the summer riding and testing coming along?

Thanks for asking  Smiley

To be honest, there has not been all that much of riding and testing. We´ve had a cold spring, and now we´re having a quite warm summer (but nothing compared to what I see in the news from the US and also Australia, of course). The riding urge is not as strong as it used to be, I suppose I´m getting old and slightly lazy ...

What riding I have done has been very good, with the mapping we did last fall it runs much nicer, and I find the altered power caracteristics entertaining. Of course I would have preferred to have the higher low-end torque of the stock motor as well as the added top-end of the tuned motor, but you can´t have it all, I suppose ... Undecided   

I will probably leave the monster pretty much alone for the time beeing, as any further significant improvements would require major modifications. Maybe at some point I´d consider "proper" hi-comp pistons. I´ve stayed away from that so far so I could still run the low-octane fuel (95 RON, I think), but starting August 1st, Sweden (by government mandate) will go from E5 to E10 fuel, so I will only use the 98-octne fuel after that. So whenever I might decide to do something, I suppose hi-comp pistons would be the logical next step.

Most of my bike-related activities are now concentrated on the HYM1100 motor in my track day bike, I will eventually post an update in that thread.

Kind regards,
Torbjörn.       
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Monster 900-2002 (sold, alive and well in the UK), 749R / 1100 HYM combo for track days, wifes / my Monster Dark 800-2003 (not entirely "Dark" anymore and a personal favourite) , 50% of 900SSie -2000 track bike for rainy days-now with tuned ST2 motor and Microtec ECU. Also parked due to having been T-boned on track.
koko64
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« Reply #191 on: July 04, 2021, 04:05:33 AM »
Cheers chug

Look forward to that update too.
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« Reply #192 on: July 05, 2021, 11:52:38 PM »
Thanks, and cheers to you as well!

 chug

Torbjörn.
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Monster 900-2002 (sold, alive and well in the UK), 749R / 1100 HYM combo for track days, wifes / my Monster Dark 800-2003 (not entirely "Dark" anymore and a personal favourite) , 50% of 900SSie -2000 track bike for rainy days-now with tuned ST2 motor and Microtec ECU. Also parked due to having been T-boned on track.
MonsterHPD
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« Reply #193 on: September 01, 2021, 09:20:59 AM »
Hi all,

I just got this photo from a friend, with the questions "it should not be like this, should it ...". I suppose this is an illustration to what might happen with the "damped" clutch / primary transmission assemblies  ...

Clutch mishap by torbjörn bergström, on Flickr
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Monster 900-2002 (sold, alive and well in the UK), 749R / 1100 HYM combo for track days, wifes / my Monster Dark 800-2003 (not entirely "Dark" anymore and a personal favourite) , 50% of 900SSie -2000 track bike for rainy days-now with tuned ST2 motor and Microtec ECU. Also parked due to having been T-boned on track.
Duck-Stew
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« Reply #194 on: September 01, 2021, 11:37:42 AM »
Wasn’t the best design, that one…
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Bike-less Portuguese immigrant enjoying life.
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