MTS 1200 airbox modification for "free" hp and torque - Page 3 - Ducati.ms - The Ultimate Ducati Forum
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post #21 of 84 (permalink) Old Oct 27th, 2012, 4:04 pm
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This map is fake.

The MTS doesn't make over 100ft/lbs of torque.

And if that isn't the scale on the map the torque and horsepower lines should cross at 5400rpm.

Will the real slim shady please stand up?

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post #22 of 84 (permalink) Old Oct 27th, 2012, 5:19 pm
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Mr. Sunshine:

The graph has mixed units. The power is hp and the torque is N-m.

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post #23 of 84 (permalink) Old Oct 27th, 2012, 5:26 pm
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Quote:
Originally Posted by t-bills View Post
Mr. Sunshine:

The graph has mixed units. The power is hp and the torque is N-m.
At 116N-m of torque that would be ~85 ft/lbs. That is still 7-8 ft/lbs more than the highest Multistrada dyno chart. Considering that's the OEM value something is way off.

Also why doesn't the torque and horsepower charts cross at 5400rpm? Horsepower is simply a function of torque over time...it should cross.

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post #24 of 84 (permalink) Old Oct 27th, 2012, 5:54 pm
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The lines are not going to intersect at 5252 rpm with mixed units. The torque at 5250 rpm is ~109 N-m. This is about 80 ft-lb. The power at 5250 rpm is 80 hp. It all works out just fine.

I'm not saying it is real, but I also have no reason to believe it is fake.

On a side note, here is an explanation as to why hp and ft-lb intersect at 5252 rpm:

1 hp is defined as 33000 ft-lb/min
power = torque X 2pi X rotational speed
power = (ft-lb X 2pi X rpm)*(hp/33000 ft-lb/min)
2pi/33000=5252
power in hp = (torque in ft-lb X rotational speed in rpm) / 5252
When the rotational speed hits 5252, your torque and power intersect when units are hp and ft-lb.

Hope this helps.

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post #25 of 84 (permalink) Old Oct 27th, 2012, 8:02 pm
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Ok..

To start, I am new to my MTS1200. So please excuse my ignorance. More of that later.

Second.. I am not new to bikes (20+ years of street bikes), racing, or road tuning and dyno tuning my bikes.

Third, I started a similar air box mod for my 07 FJR1300 about 5 years ago. It added substantial "free HP" to the FJR's. although, it did stir up plenty of Nay sayers on the FJRforum (Even a young lad who did my mod improperly and tried to blame me....dipsh*t). Until dyno results were posted. Also, I pioneered a air box opening mod on the Victory M/C sites (TheVMC & TheVog) for my 2010 Cross Country / Crossroads. Also, heard some nay sayers there too.. BUT was quickly adopted by most after the dyno results were posted. SO I WHOLE HEARTEDLY APPLAUD THIS EFFORT! GOOD WORK AND THANKS FOR SHARING!!

Fourth, What I am getting at.. Letting in more air is always worth it. So long as the bike can utilize it(which the MTS1200 obviously can). This along with less exhaust restrictions and the right amount of fuel added. Both my previous FJR and my current Victory Cross Country had traditional air box's. No ram air systems. They benefited greatly. All across the RPM range.

Finally, Does our MTS1200's have a true ram air system? If not, I am all over this mod. IF SO... I am not going to be a nay sayer BUT the benefits stationary on a dyno might be negated by losing the pressurized air box at speed.. BUT.. IT MIGHT NOT. Remember, a dyno test result will never duplicate the benefits of a pressurized air box. If our MTS1200 do have a true ram air system.. The only way to know would be to take two (say stock) bikes and chop one air box (dyno shows even chopping it without mods adds power). Run them side by side at speed.. Say a Fourth gear roll on.... See if the chopped bike falls flat on its face at speed compared to the intact air box.

Another concern for a chopped air box on a MTS1200 would be to not do any water crossings with it if you were to be "off roading."

Sorry for the rant.. Thinking out loud with my fingers.
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post #26 of 84 (permalink) Old Oct 28th, 2012, 7:59 am Thread Starter
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Mr Sunhine.
Ill ask tom to post a graph with hp/ftlbs. The graph i put up is for hp-Nm which we use here in europe. But rest assured that tom and myself have little intrest in promoting a mod that isnt prooven to work.

Webby
The mts doesnt have a sealed intake like th zx kawis.. The intakechannel is slipped onto the intake snout on the airbox, so i would seriosly doubt any overpressure.

But anyone can prove me wrong! Should be easy..

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post #27 of 84 (permalink) Old Oct 28th, 2012, 8:48 am
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Amullo.
Has this modification affect fuel consumtion in any way? I think these bikes are a little bit thirsty (compared to my old ST4 any way..)

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post #28 of 84 (permalink) Old Oct 28th, 2012, 9:26 am
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Can the ignorant please sit down?

Webby
There is no ram air on the multi. Crossing water, the holes are equally high up as they were.

Jens
Fuel consuption should be less than 0.60 litres per 10km, mixed riding.
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post #29 of 84 (permalink) Old Oct 28th, 2012, 9:49 am Thread Starter
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My consumption went down by ~10% or so. From 6.5L/100km to roughly 5.9-6L/100km (meassured, not what the ecu says).
Cant say if it was the mod or the mapping. Im guessing both.

A note:
This "how too" thread was posted because several people where intrested in the mod from my old mapped thread. Its proven and your welcome to use it. But please understand that i put this up on request and i wanted to share.

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post #30 of 84 (permalink) Old Oct 28th, 2012, 4:01 pm
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I appreciate the how to guide. I'm undecided on whether I want to do the mod. Regardless, I appreciate all of the info and providing the option.

Thomas Williams
2018 Multistrada PP, 2012 Hypermotard 1100 Evo SP, 1995 900SS/SP
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