Honda VTX 1300 / VTX 1800 Motorcycles Forum banner
Cancel

How is HP calculated?

2317 Views 21 Replies 11 Participants Last post by  dugsamin, 
GR8RALLY
How does Honda calculate the HP rating for the VTX? The 2003 VTX 1800R from what I can tell has 106 HP and 120 lbs of torque. Are these ratings at the rear wheel, or is it like with some car manufactures the "engine/flywheel" numbers? The reason I ask is that the previous owner of my bike had it dyno and it was rated at 112 HP with the following upgrades; aftermarket Pro-Charger, V&H Big Shot exhaust and PCIII mapped aggressively. Do the numbers sound about right?:hmm2:
Reply
Save
Like
21 - 22 of 22 Posts
GR8RALLY
Good to know Cheeseman316, many other members with our similar bike set-up have reported those exact results. The previous owner I purchased my bike from stated that to his best recollection, the dyno reported 112 HP. Im starting to think that was the Torque number, rather than HP. Either way, plenty fast enough for me. Im more into the cruising aspect, but it never hurts to know what the bike is capable of. Now me on the other hand is another whole story on what I'm capable of....lol :eek: Rod.
Reply
Save
Like
dugsamin
GR8RALLY said:
Im more into the cruising aspect, but it never hurts to know what the bike is capable of. :eek: Rod.
Click to expand...
More power is a lot like insurance, or a gun. You may never need it, but it's nice to know it's there.:choppersm
Reply
Save
Like
21 - 22 of 22 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Honda VTX 1300 / VTX 1800 Motorcycles Forum
VTX Cafe Forum is for owners of Honda VTX 1300 or VTX 1800. Join this community to discuss mods, specs, parts & more!
Full Forum Listing
Explore Our Forums
Honda VTX 1300 Forums General VTX/Motorcycle Topics Introduce yourself and say hello if you like... Honda VTX 1800 Forums 1300 Parts /Accessories For Sale
Top