1100EVO Does it really have 100 hp?

[He Man]

You answered your own question.  Crank HP is fictional coz in reality its not what you get.  As you've identified, losses can be many and varied.  Motorcycle (and other vehicle) manufacturers like to quote crank numbers.... coz they're more impressive, but they're fairly meaningless when attempting to compare one bike's stats against another's.
^^ What koko64 said.

Well, for the sake of arguing... When you build a motor for a vehicle, do you test the ENGINE for proper HP output, or do you put the whole car together then dyno it to make sure the CAR is making the right power?

When you transplant a motor from one vehicle to another, do you use crank HP or do you use RWHP from a totally different car? I am using this reference because the same motor is used in many different cars but maintains the same HP rating, however the drive train is completely different. Think about the V8 ford uses in the Econoline and F150. Same motor different drive train.

And when you add non engine mods to the bike, you can only "Free up" hp. So if you bolted on a bunch of stuff, ligth weight wheels blah blah blah, you know you can never actually make your M1100EVO a 100hp bike  because its 100hp crank, which means thats the max output of the motor. The average car joe knows that rwhp has about 15-20% lost. so u just multiply and subtract. But going the other way around, u have to set up a mini equation which is annoying to do. 15% of what = my RWHP?

I know all this stuff is just mumble jumble cause in reality all you want to know is how much useable power your getting when your putting it down on the road. but i dont think crank HP is a fictional bs number at all. it would be great if they advertise both.


And for the record my 1000DS puts 82rwhp.

[Goat_Herder]

Anyhooooo.  1100EVO engine is rated at 100 hp.  That's the story and I am sticking to it. 

[koko64]

My modified M900 makes 81 STD rwhp or 80 SAE rwhp corrected on the same dyno. It stomps on a freezing cold day with low humidity (and measured with uncorrected hp) .

I know of a dyno that will give me nearly 90 .

Hey He Man if I go to that dyno my bike will blow yours out of the water! (As long as you don't take your bike there too) .

[Raux]

i look at it this way..

if Ducati rates all its motors the same way then it has more than any previous 2v ducati motor.

[koko64]

Thats true Raux.
Compared to my old girl,
more capacity, better ports, bigger valves, more efficient combustion chambers, better cams, more compression, better fuel delivery, better ignition.
Its just evolution.

[Kopfjager]

i look at it this way..

if Ducati rates all its motors the same way then it has more than any previous 2v ducati motor.

They didn't used too, but fell victim. If you want to know real numbers, put it on the Dyno.

[bikepilot]

Its totally true that dyno operators can fudge the numbers.  I once witnessed a dyno operator at a dyno day stress a bit when he saw that a bike he "built" for a customer (to the tune of $6k for the engine work) got beat out by an older, stock bike.  His sollution was to fiddle with the dyno and run the customer's "built" bike an extra six times until it finally spit out a winning number 

[WhiteStripe]

I have spent a couple decades on car forums.  For purposes of the internet, the most relevant measurement is the butt dyno.

The formula to get to HP is easy. 
- Take stock HP as quoted by manufacturer, wheel or crank doesn't matter. 
- Add 10% because your vehicle is special. 
- Add 20% for drivetrain loss (whether you started at wheel or crank is irrelevant)
- take a +5% bonus for any stickers from tuners or local street racing clubs.
- add 50hp on top of that if you "smoked" some guy in a Porsche GT2 the other day

then....put that you are putting down 500HP in your signature and join the argument about Mustang vs. Dynojet.

My S2R 1000 is easily putting down a 100+ HP at the wheel, i destroyed a guy on a Yamaha R1 this morning on the way to work.

[koko64]

I have spent a couple decades on car forums.  For purposes of the internet, the most relevant measurement is the butt dyno.

The formula to get to HP is easy. 
- Take stock HP as quoted by manufacturer, wheel or crank doesn't matter. 
- Add 10% because your vehicle is special. 
- Add 20% for drivetrain loss (whether you started at wheel or crank is irrelevant)
- take a +5% bonus for any stickers from tuners or local street racing clubs.
- add 50hp on top of that if you "smoked" some guy in a Porsche GT2 the other day

then....put that you are putting down 500HP in your signature and join the argument about Mustang vs. Dynojet.

My S2R 1000 is easily putting down a 100+ HP at the wheel, i destroyed a guy on a Yamaha R1 this morning on the way to work.

 

[He Man]

in that case i fixed my signature.

[Autostrada Pilot]

in that case i fixed my signature.

That's the funniest thing I've ever read, today.

[koko64]

The best part was "pregnant doges", I just keep thinking of "Talladega Nights".