Rode an 80hp CR500 today.

[2T Institute]

90hp dream on. To get to approach 80hp you need to be on methanol with 44mm carburetor, then the bike is not 'fast' at all they only go well on dirt track/sand/road racing with certifiable nutcases riding.
HRC riders were de-tuning the 500 to make them ridable back in the mid 90's.

[Recovered]

It was a 95 CR.  It was 1.25 over, ported to hell, among other things, and dyno'd at the wheel at just under 80. 

You can sit o the internet and argue about it until your ****ing balls fall off though, dudes.  I don't care.  I rode it, and I can tell you it was more than 65hp, and virtually unridable. That is why I ased the owner, to which I got the response "It dyno'd close to 80."  So, If you REALLY want to get out the calculator and figure out crank hp, that number would be over 80.  I burned both my boots on both side of the pipe and bruised both my inner thighs from squeezing the tank so hard to keep from flying off the back of the bike in 3rd gear.  My eyes hurt when I got done, and I realized it was from not blinking. 

[twosmoke595]

It was a 95 CR.  It was 1.25 over, ported to hell, among other things, and dyno'd at the wheel at just under 80. 

You can sit o the internet and argue about it until your ****ing balls fall off though, dudes.  I don't care.  I rode it, and I can tell you it was more than 65hp, and virtually unridable. That is why I ased the owner, to which I got the response "It dyno'd close to 80."  So, If you REALLY want to get out the calculator and figure out crank hp, that number would be over 80.  I burned both my boots on both side of the pipe and bruised both my inner thighs from squeezing the tank so hard to keep from flying off the back of the bike in 3rd gear.  My eyes hurt when I got done, and I realized it was from not blinking.

i cant imagine that lol
i would be very surprised if a 500 4 stroke could get 80 horsepower, and that 500 2 stroke would last 10X as long i would bet

[factoryX]

90hp dream on. To get to approach 80hp you need to be on methanol with 44mm carburetor, then the bike is not 'fast' at all they only go well on dirt track/sand/road racing with certifiable nutcases riding.
HRC riders were de-tuning the 500 to make them ridable back in the mid 90's.

You mad bro?

All kidding aside, I wasted a small chunk of my teenager years on trike/quad forums where drag racing is being done. Ever heard of a Puma motor? its a 400cc cylinder mated to a atc/trx250r cases. Here is a dyno sheet of one running on Methanol..With the counter balancer..


Tell me again that cr500's can't pull off 90hp..

[cnrcpla]

Why is it so hard to believe a 500 pulled off just under 80HP? I don't see why not  I mean that would be a bit of a handful on the track and almost impossible to ride in tight woods, but I guess it is nice to say you "tamed" the beast hahaha 

[citabjockey]

just under 80HP? I don't see why not  I mean that would be almost impossible to ride in tight woods hahaha 

Someone says 80HP and you picture riding it tight woods? Wow, your imagination goes places mine cannot contemplate!

Riding on a breathed on CR500 -- it does kinda sound like something to put on one's bucket list!

[factoryX]

Well... 

[Jeram]

90hp dream on. To get to approach 80hp you need to be on methanol with 44mm carburetor, then the bike is not 'fast' at all they only go well on dirt track/sand/road racing with certifiable nutcases riding.
HRC riders were de-tuning the 500 to make them ridable back in the mid 90's.

You mad bro?

All kidding aside, I wasted a small chunk of my teenager years on trike/quad forums where drag racing is being done. Ever heard of a Puma motor? its a 400cc cylinder mated to a atc/trx250r cases. Here is a dyno sheet of one running on Methanol..With the counter balancer.

Tell me again that cr500's can't pull off 90hp..

There is a huge difference between a stock ported cylinder and a big dollar CR500 LIGER cylinder (Not PUMA, the LIGER is the CR cylinder made by CPindustries, who also make the PUMA).
With a 660cc liger cylinder, a completely unusable 100hp is possible on methanol.

But compared to this cylinder which resembles a scaled up 7 port GP125 cylinder, the standard CR cylinder looks primitive in comparison.
No amount of porting on a stock CR500 cylinder will get it anywhere near one of those liger cylinders. Thats why they make the LIGER cylinder from scratch, not a simple core swap port job.

[Jeram]

90hp dream on. To get to approach 80hp you need to be on methanol with 44mm carburetor, then the bike is not 'fast' at all they only go well on dirt track/sand/road racing with certifiable nutcases riding.
HRC riders were de-tuning the 500 to make them ridable back in the mid 90's.

You mad bro?

Tell me again that cr500's can't pull off 90hp..

The only CR to get close to 90hp with a stock cylinder (at the crank) was Dr Robert Tullie, he was the head of development at Renault F1 and the creator of the Tul-aris racer.
he build a bike called the Tul-da, a CR500 road racer.

But Ill tell you now this bike is in a whole different league




"Close to 80" as said by some bloke could have meant 75hp, and that 75hp could have been on a 'happy dyno' bringing it down to a more realistic 70hp. Which by all accounts is still a ****ing powerful bike.

[cnrcpla]

Someone says 80HP and you picture riding it tight woods? Wow, your imagination goes places mine cannot contemplate!

I would like to try it in the woods, granted I doubt I could keep it on two wheels, or even on the actual trail for that matter 

[Recovered]

Anyone actually ride?

[Recovered]

Someone says 80HP and you picture riding it tight woods? Wow, your imagination goes places mine cannot contemplate!

I would like to try it in the woods, granted I doubt I could keep it on two wheels, or even on the actual trail for that matter 

I over shot a couple corners and just stayed in the throttle to make it look like I was trying for an "outside" line.  Don;t think I had anyone fooled though.

[Recovered]

90hp dream on. To get to approach 80hp you need to be on methanol with 44mm carburetor, then the bike is not 'fast' at all they only go well on dirt track/sand/road racing with certifiable nutcases riding.
HRC riders were de-tuning the 500 to make them ridable back in the mid 90's.

You mad bro?

Tell me again that cr500's can't pull off 90hp..

The only CR to get close to 90hp with a stock cylinder (at the crank) was Dr Robert Tullie, he was the head of development at Renault F1 and the creator of the Tul-aris racer.
he build a bike called the Tul-da, a CR500 road racer.

But Ill tell you now this bike is in a whole different league




"Close to 80" as said by some bloke could have meant 75hp, and that 75hp could have been on a 'happy dyno' bringing it down to a more realistic 70hp. Which by all accounts is still a ****ing powerful bike.

You just have it all figured out don't you.

[eprovenzano]

Someone says 80HP and you picture riding it tight woods? Wow, your imagination goes places mine cannot contemplate!

I would like to try it in the woods, granted I doubt I could keep it on two wheels, or even on the actual trail for that matter 

I over shot a couple corners and just stayed in the throttle to make it look like I was trying for an "outside" line.  Don;t think I had anyone fooled though.

No matter the actual HP...  (Who really cares)  that is still one fire breathing, underoo changing machine...  My question is how were the vibs of the big bore...  although I bet you were gripping the bars so tight it was hard to notice.     I bet they could hear you laughing (or was that crying in shear terror) as you went around the track.   

[Recovered]

Vibration is pretty bad, but when it starts to vibrate, is when it starts to move.  Its more like having your cellphone in vibrate.  It's a little annoying but you know something is going on when it shakes.