Do the HPS cans really make 5 hp gain has anybody put one on the dyne yet?
HPS cans
- Thread starter J-Dog
- Start date
Lol. Maybe at sea level.
Just be happy for the weight loss. But KEEP IN MIND!! Quiet exhausts will be the best for everyone !!
Just be happy for the weight loss. But KEEP IN MIND!! Quiet exhausts will be the best for everyone !!
Noise always gives the illusion of power.
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There site claims 5hp so I was thing why buy a slp pipe if they only make 7hp.
I
1 year horse power win loss sound winner.... Yeah I got 400 bucks to burn
I've seen somewhere where the claim from HPS was "up to 5 hp in the midrange and 1-2 hp peak". Rich Daly who owns Dynaport has a great video on You Tube (sorry, I don't have the link) that gives the straight scoop on cans. Lighter weight - yes, louder sound - yes, more power - mmm... watch the video.
Thanks that is about what I figured.
A
https://m.facebook.com/ddracingllc/
Some dyno numbers posted on there for stock and there can also they tried more timing but lost power. Looks like 3 hp is achievable.
Some dyno numbers posted on there for stock and there can also they tried more timing but lost power. Looks like 3 hp is achievable.
At what elevation!?
I ride my mountain sleds at mountain elevations. 8-13,000ft.
I don’t give a rats azz what power a mountain sled with a mountain can makes at “corrected” numbers. Give us REAL NUMBERS! At the elevations a mountain sled rides.
No one has the balls to give those numbers. No one!!!!
I ride my mountain sleds at mountain elevations. 8-13,000ft.
I don’t give a rats azz what power a mountain sled with a mountain can makes at “corrected” numbers. Give us REAL NUMBERS! At the elevations a mountain sled rides.
No one has the balls to give those numbers. No one!!!!
B
Probably not many dyno cells at 13k ft.
Real HP
Haha no one wants to see that their 170HP sled only makes 150HP @ 10,000 feet.
Haha no one wants to see that their 170HP sled only makes 150HP @ 10,000 feet.
Honestly. Who doesn’t want honest, MOUNTAIN elevation hp numbers with their mods!?
I’m not even sure when mountain riders started buying into the hp gains from cans and pipes came from. But wow!!! What a gravy train these pipe and can guys have had with it!!!
Good ol. Noise equals power trick I guess.
Don’t get me wrong. A twin pipe set up with a free breathing can running at 3000’- 0’ elevation is Gunna scream and add lots of HP too. Some even seen nice gains at 5-6000ft. But from where I’m from. We don’t unload until 8000ft. Good snow starts at 9000ft. And the great stuff is between 9 and 12000ft. I dare you Try to even create enough pressure to run twin pipes at 8000+ft. You’ll be loosing power. But it’ll sound Kewl!!
Good ol. Noise equals power trick I guess.
Don’t get me wrong. A twin pipe set up with a free breathing can running at 3000’- 0’ elevation is Gunna scream and add lots of HP too. Some even seen nice gains at 5-6000ft. But from where I’m from. We don’t unload until 8000ft. Good snow starts at 9000ft. And the great stuff is between 9 and 12000ft. I dare you Try to even create enough pressure to run twin pipes at 8000+ft. You’ll be loosing power. But it’ll sound Kewl!!
B
Ah I see what you're getting at now. I thought you wanted to totally eliminate the BS associated with correction factors.
Al in Revy used to drag the chassis dyno to the hills to work on clutching, that's the only effort I know of to factor in the true power loss. Someone must have a dyno at a shop above 6-7K.
Clutching/RPM is a good indicator of power gain/loss...at least at peak RPM. Probably not able to tell 2-3, but if you drop a couple hundred rpm, same conditions, temps, elev., that's a good indication it dropped power. Have seen that a number of times, swap silencers and RPM is back.
HPS has been one of the few that seems to work as good or better than stock, at least at the elevations I ride....typically 4-7K.
Clutching/RPM is a good indicator of power gain/loss...at least at peak RPM. Probably not able to tell 2-3, but if you drop a couple hundred rpm, same conditions, temps, elev., that's a good indication it dropped power. Have seen that a number of times, swap silencers and RPM is back.
HPS has been one of the few that seems to work as good or better than stock, at least at the elevations I ride....typically 4-7K.
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