Stock Horsepower #

[mud99]

The number i've seen most often is around 145, with as low as 140.

Maybe 150 on a good day, at sea level. Maybe 160 with a leaf blower connected to the intake LOL.

 

[AKSNOWRIDER]

they have more then enough as delievered to at least keep up with the other brands..big diff is the chassis /clutching and weight are so much better then everyone else that its just a blast to ride..and just to give ya a idea of it...grab a 50 pd bag of dog food and strap it right across the frt of the seat..now go ride it..thats what the other brands 160 hp has to haul around that the poo doesnt.......

 

[Finnlandr]

150 on the dyno.


http://www.youtube.com/watch?v=_Z-3_M12GAI&feature=plcp

 

[Keithstone]

Sportin my pro

I rode my 11 pro when many were sceptical I punished the terrain all year
I rode my 12 pro last year and made it my B*#ch. I was going to move to the 13 but have decided more beef is the key. Stage 4 I can tow the cats and doos up the hill so we can all have a cold beverage together instead of me looking down on them like the past two years.

 

[xTonyCRx]

150 on the dyno.


http://www.youtube.com/watch?v=_Z-3_M12GAI&feature=plcp

According to the poster of that video the sled was running 89 Octane with the ethanol resister.

 

[snowmobiler]

wheres the beef?

 

[AndrettiDog]

According to the poster of that video the sled was running 89 Octane with the ethanol resister.

89 Octane is going to run hot which is good for that test. The ethanol plug does richen the fuel mixture though. Good test, there's plenty of room in there to get more.

 

[Dartos]

89 Octane is going to run hot which is good for that test. The ethanol plug does richen the fuel mixture though. Good test, there's plenty of room in there to get more.

Why does 89 run hot? Hotter than 91? Any different than 87?

 

[summ8rmk]

Octane has a higher flash point than heptane. So 89 %octane and 11% heptane will ignite sooner in the cycle than 91% octane and 9% heptane.

 

[Dartos]

89 Octane is going to run hot which is good for that test. The ethanol plug does richen the fuel mixture though. Good test, there's plenty of room in there to get more.

Why does 89 run hot? Hotter than 91? Any different than 87?

Octane has a higher flash point than heptane. So 89 %octane and 11% heptane will ignite sooner in the cycle than 91% octane and 9% heptane.

Ok. So why does it run hotter? And hotter than what?

 

[summ8rmk]

I can't answer that. I know that pre ignition from running to much heptane (or not enough octane) for ur compression will destroy a piston. I don't see how running a lower octane fuel would help with power

 

[High Velocity]

The higher the octane rating of the fuel, the higher resistance to igniting. You will make more HP by running the lowest octane fuel you can without doing damage (detonation). Running high octane fuel in engines that don't require it, is only costing you horsepower.


Done fishing. Let's go sledding !!

 

[Dartos]

I was trying to get BugIto to explain what he ment by the statement "89 is going to run hot"

I wrote about 4 different replies with questions to summ8rmk, but then deleted them all because it really had no bearing on my original question.

 

[summ8rmk]

The higher the octane rating of the fuel, the higher resistance to igniting. You will make more HP by running the lowest octane fuel you can without doing damage (detonation). Running high octane fuel in engines that don't require it, is only costing you horsepower.


Done fishing. Let's go sledding !!

I don't get it?
All gasoline as the same amount of energy!
It changes for the seasons winter grade - 112, 500 BTU
summer grade- 114, 500 BTU
and that is for all grades of gasoline.
If all grades have the exact same energy they produce the same heat.
Octane doesn't create less heat or less energy, it just prevents pre ignition from high cylinder temperature due to higher compression.
Please correct me if I'm wrong. I hate being wrong. Lol

 

[die hard poo]

The way I understand it, is the fuel will not reach its full energy potential within its combustion cycle when running too high of octane for your setup. It will be a slower burning flame and gets exhausted before its fully consumed. Running too high of octane fuel will not produce more hp alone. It just allows ur motor to make more potential hp without pre or post detonation when adding more compression, forced induction, more timing, or a leaner afr.

 

[summ8rmk]

I would like to continue this discussion about fuel. Mostly because knowledge is power and I want more power lol.
But this is off topic and I don't want to offend anybody so I must stop and get back on topic.

I would guess from riding the pro that it's even with the 09 cat at 145 hp.

 

[pura vida]

what die hard said. you'll never get 100% of the energy out of a given amount of fuel. the goal is to get as much as possible. running the lowest octane possible without destroying your motor will help with this goal. obviously most of us would rather error on the side of safe so we don't have to replace pistons and cranks due to detonation.

pv

 

[summ8rmk]

Most gasoline engines r 25-30% efficient
Diesel r 40-50% efficient

 

[AndrettiDog]

I was saying what others have commented on. You want to run as low of an octane as possible w/o detonation...and w/o ethanol. If I could choose I would run 89ish octane that had no ethanol. Let everyone else run race fuel (high octane)!

 

[akgiauque]

Most gasoline engines r 25-30% efficient
Diesel r 40-50% efficient

Exactly correct, If it were 100% efficient all that would be made is Carbon, Oxygene and Hydrogen. The bonds between the CO2 and H2O would also be broken. This does not happen in a combustion reaction.
Summer and winter gas have a similar BTU because they are oxygenated the Octane rating does not change they just burn more effectively.
I would love to give you a chemistry lesson on this but i have parent teacher conferences.

G