Author Topic: V9 max torque  (Read 1700 times)

Offline tris

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V9 max torque
« on: March 19, 2022, 01:30:10 AM »
I read somewhere the other day tha the V9 lump delivers peak torque at just 3000 rpm.

Is that right.

If it is,  it goes a long way in explaining why it feels similar to the B1100 I used to own at lower speeds
2017 V9 Roamer
2005 Breva 1100 (non ABS) "Bruno" - now sold
1995 Cali 1100 - carby   "Dino" -now sold
1993 TW125 "POS" - Resting

Offline chrisfer

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Re: V9 max torque
« Reply #1 on: March 19, 2022, 03:57:30 AM »
« Last Edit: March 19, 2022, 03:58:45 AM by chrisfer »
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Offline tris

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Re: V9 max torque
« Reply #2 on: March 20, 2022, 02:46:38 AM »
Cheers,  it was a similar article that prompted the question

The similar sized V7iii an V85 seem to have their peak torques at virtually double the RPM with not a massive increase in peak torque

I just find it interesting
2017 V9 Roamer
2005 Breva 1100 (non ABS) "Bruno" - now sold
1995 Cali 1100 - carby   "Dino" -now sold
1993 TW125 "POS" - Resting

Offline chrisfer

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Re: V9 max torque
« Reply #3 on: March 20, 2022, 03:49:30 AM »
The similar sized V7iii an V85 seem to have their peak torques at virtually double the RPM with not a massive increase in peak torque
Having a maximum torque at 6000 rpm does not necessarily mean that there is less at 3000 rpm.

2022 V7 850 Stone - 2019 V7 III Carbon - 2004 V11 RossoCorsa - 2002 V11 Le Mans - 1995 750 Nevada

Offline SSGG Geezer

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Re: V9 max torque
« Reply #4 on: March 20, 2022, 11:23:48 AM »
Cheers,  it was a similar article that prompted the question

The similar sized V7iii an V85 seem to have their peak torques at virtually double the RPM with not a massive increase in peak torque

I just find it interesting
I thought that the increase to 59 Ft/Lbs was significant. Even at 5000 RPM on the 21 V85 models.  The curve being fairly flat is the important part, at least to me when I ride. I see no big peaks when twisting the throttle a bit harder than normal.  I may need to test ride a V7 to see if the difference in character s great when combined with a lighter motorcycle.

Offline tris

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Re: V9 max torque
« Reply #5 on: March 21, 2022, 05:08:11 AM »
POSSIBLY SOLVED - it's another bit of random Moto Guzzi data /typo





Chart is from Moto Guzzi (blue dotted line is mine) and max torque is clearly not at 3K!

https://www.cycleworld.com/moto-guzzi-v9-motorcycle-engine-history-and-evolution/

« Last Edit: March 21, 2022, 05:23:41 AM by tris »
2017 V9 Roamer
2005 Breva 1100 (non ABS) "Bruno" - now sold
1995 Cali 1100 - carby   "Dino" -now sold
1993 TW125 "POS" - Resting

Online Kev m

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Re: V9 max torque
« Reply #6 on: March 21, 2022, 06:08:26 AM »
POSSIBLY SOLVED - it's another bit of random Moto Guzzi data /typo





Chart is from Moto Guzzi (blue dotted line is mine) and max torque is clearly not at 3K!

https://www.cycleworld.com/moto-guzzi-v9-motorcycle-engine-history-and-evolution/

I suspect strongly the error is in the graphic not that data.

It's an issue of resolution/accuracy of the graphic. Multiple separate Dyno reports (including CW in their verbal summary) give peak torque as listed at an rpm around 3k or within a few hundred rpm. It's much more likely that figure is exact from the Dyno summary than the graphic, especially the simplified graphic used in that CW article.


References:

CW: 45.7 lb.-ft. of peak torque at 3,000 rpm

Motorcycle.com: 46.4 ft. lbs. @ 3200 rpm



Rider: 47.3 ft. lbs. @ 3500 rpm




EDIT - that said, as others have noted, the more significant part is the flatness of the curve. But I also think the V9 motor feels different (better) than the V85, as it does in fact come on stronger/lower, and doesn't have the dip the V85 has shown in some curves. I also think I liked the V9 better than the V7III or V7850 when it comes to that feel.

I do know that I felt like I NEEDED to spin the V85 much more than the V9 in the same conditions.
« Last Edit: March 21, 2022, 08:03:44 AM by Kev m »
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Online bad Chad

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Re: V9 max torque
« Reply #7 on: March 21, 2022, 06:57:39 AM »
Just shift at 6500, like I do.  :cool:
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Offline Milosh

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Re: V9 max torque
« Reply #8 on: March 21, 2022, 07:28:58 AM »
But the torque "curve" is flat as can be. And it feels that way for sure. :bike-037:
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Offline tris

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Re: V9 max torque
« Reply #9 on: March 21, 2022, 09:31:56 AM »
I suspect strongly the error is in the graphic not that data.
...........

EDIT - that said, as others have noted, the more significant part is the flatness of the curve. But I also think the V9 motor feels different (better) than the V85, as it does in fact come on stronger/lower, and doesn't have the dip the V85 has shown in some curves. I also think I liked the V9 better than the V7III or V7850 when it comes to that feel.

I do know that I felt like I NEEDED to spin the V85 much more than the V9 in the same conditions.

A Fair point and I'm happy to concede it Kev!!

The flatness of the curve as Milosh says from 3k makes it great fun!!
2017 V9 Roamer
2005 Breva 1100 (non ABS) "Bruno" - now sold
1995 Cali 1100 - carby   "Dino" -now sold
1993 TW125 "POS" - Resting

Online Kev m

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Re: V9 max torque
« Reply #10 on: March 21, 2022, 10:16:51 AM »
A Fair point and I'm happy to concede it Kev!!

The flatness of the curve as Milosh says from 3k makes it great fun!!

 :thumb:

Cheers.... I still want a V9.... I just don't want to get rid of anything else in the fleet (well, I would get rid of the Duc, but Jenn would skin me alive so that's not an option).
Current Fleet

18 Guzzi V7III Carbon Dark
13 Guzzi V7 Stone
11 Duc M696

 


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