Even though altitude is a matter of geography, not weather, elevation plays the biggest single role in the horsepower/performance equation. For every 1000 feet you climb above sea level, there is a reduction in air density of approximately 4.5 percent, according to Marcellis. So, for every 1000-foot gain in altitude, there is a corresponding loss of horsepower.

5000 feet in Denver, 4.5x5=22.5. Assuming my 954 with full Arata has 135 horsepower to the wheel a sea level, I would lose 30HP making my total HP 105. If it has 75 TQ at sea level I would lose 17, making my total TQ 58.

I'm not gonna talk about it anymore, but you guys act like it doesn't matter when it does, especially on a 600 that barely has 100hp and 50tq to begin with.

 

Yes but 100hp is MORE than enough to wheelie your bike properly

 

Yeah I know, it's probably what my GSX-R600 would feel like at sea level, which is more than enough for me to handle right now. It roll on wheelies at 7k in first gear just like a 600 would.

 

I'm tired of you blaming altitude for your lack of skill.
You can easily get a 600 up in second gear here.
Get out and ride.

 

Holy ****, I can't believe i am posting here, but yes alititude will give you less HP, but not like the old days on shitty carbed bikes. You will get less power with height, but your mixture will stay correct on a FI bike. Turbocharged engines are not effected as much with lower air density due to the fact that they compress air to a certain pressure and then bleed the extra off. Supercharge engines will be more effected by altitude change due to the fact that their air compression ratio is more linear with engine RPM.



So, buy a frickin TURBO for that 954 and stunt the damn thing.


Just stop posting and go PRACTICE!!!

 

Get a razor blade, open up your sack. Take out those tiny little ***** and replace them with ones that work. Tape up sack and go wheelie.

 

even if you lost 30hp on your 600.... assuming it had 90hp to start.... 60hp is plenty. think about it.... you can clutch up a wheelie at what rpm? exactly. you are not using full potential of the engine when you wheelie.

you dont need a bigger bike.. you need bigger *****. just like mikem said. go get some damn implants little boy

 

I used to wheelie a Honda cx650 custom. 45hp or so with an opposing v-twin and shaft drive.. :YEAH

 

Ya, ok, so we all know that you can wheelie with less horsepower, but it's just NICER to have that extra boost. Esp. if you're getting up at highway speeds and stuff.
Not to mention racing stoplight to stoplight and whatnot. To me it sounded more like a question, not a complaint.

 

I just think it was funny when FHL said he couldn't wheelie his BICYCLE as well because of the altitude... LOL

 

Josh, do yourself a favor. Clickon FLH's name and look for all his posts.......... you will understand a lot more my juvenile friend.

 

Your logic is wonderful except you require the difference in air density to be 1:1 ratio to that of horsepower. which i highly doubt because when i went to Prescott, AZ which is at 5300 ft above sea level on my 1997 F3 i could wheelie it just fine. that would mean that my mean 85hp became about 66hp and it sure didnt feel that way. Altitude is a gay excuse for not putting the time practicing. and if it is that much of a factor why not go -1 in front to compensate for lesser air pressure.

 

I dont have any advice for anyone in here...

 

get a life dude!

 

Just put more air in the tires

 

 

Even better, run helium in the front tire...... :YEAH

 

It would be funny explaining that one to a cop while your front wheel is floating in the air

if only............