R/R = Relocated Redneck
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Actual measured power
Good afternoon y'all, one of the local dealerships had a deal last weekend where dynojet had one of their trucks on site. Just for giggles (and the other stuff...) I decided to let them twist mine up to see what the real hp and torque numbers were. My question is more for the folks who have other bikes. I've seen multiple sites where the hp number was around 60 and the torque was somewhere around 47. I didn't believe the numbers represented rear wheel power when I read them and the dyno confirmed it. Have y'all experienced similar findings with other bikes?
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Mods
Voltmeter/clock/temperature gauge
HD Electra Glide Fairing
Earshave/Coastered/CA emissions - gone...

R/R relocated
Nightster seat
Tombstone taillight
Drag specialties turn signals relocated
Sportster progressive shocks... Dropped rear 1 1/2"
Progressive Fork Springs dropped front 1"
NGK plug wires and iridium plugs
Coil Relay Mod
Paint
ACCT to MCCT
Honda Rebel luggage rack
VN800 Handlebars & controls
Screamin Eagle mufflers
F&S Engine Guard & Kury highway pegs
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Clean numbers there.
Most of the time advertised hp/torque is measured at the flywheel, thus a good 10% higher than reality.
Most of the time advertised hp/torque is measured at the flywheel, thus a good 10% higher than reality.
1986 Kawasaki Vulcan 750
NGK Iridium Plugs #7803/DPR7EIX-9
Duralast Gold ETX15 AGM Battery
Coastered & Shaved
TOC MCCTs
Metzeler ME880 [110/90-19, 170/80-15]
Balance Dampers Replaced
Tuxedo Mod
Rebuilt Forks w/ Progressive Springs
V&H Cruzers
VN750.com Grill Cover
Meanstreak Seat
Emgo 23-92411 Handlebars
MOSFET FH012AA R/R
1990 Kawasaki Vulcan 750
1998 Honda VFR800 FI
2014 Honda VFR800F
1989 Pontiac Firebird Formula 350
Yes most factories report horsepower at the crank, while magazines like Cycle World dyno their test bikes and give rear wheel figures.
"Reported" horsepower for the Vulcan is 63 I believe. I think a member had his earshaved VN dyno'd and reported 53-54 HP.
My FJR listed a HP of 145, dyno runs by owners are in the 125-129 range.
Shaft drive bikes eat up a bit more power than chain drive bikes BTW.
"Reported" horsepower for the Vulcan is 63 I believe. I think a member had his earshaved VN dyno'd and reported 53-54 HP.
My FJR listed a HP of 145, dyno runs by owners are in the 125-129 range.
Shaft drive bikes eat up a bit more power than chain drive bikes BTW.
If You Are Not Sure If I Am Joking or Not....I AM !!Photos:
http://www.flickr.com/photos/knifemaker1954/sets/
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Quote:
Originally Posted by Knifemaker
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Yes most factories report horsepower at the crank, while magazines like Cycle World dyno their test bikes and give rear wheel figures.
"Reported" horsepower for the Vulcan is 63 I believe. I think a member had his earshaved VN dyno'd and reported 53-54 HP.
My FJR listed a HP of 145, dyno runs by owners are in the 125-129 range.
Shaft drive bikes eat up a bit more power than chain drive bikes BTW.
"Reported" horsepower for the Vulcan is 63 I believe. I think a member had his earshaved VN dyno'd and reported 53-54 HP.
My FJR listed a HP of 145, dyno runs by owners are in the 125-129 range.
Shaft drive bikes eat up a bit more power than chain drive bikes BTW.
Quote:
Originally Posted by acisroc
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I think you are right knifemaker, my 750 had a little power loss up in the mountains loaded down with 60 lbs of camping gear last summer.

Quote:
Originally Posted by acisroc
View Post
Sure is nice to have the "Connie" now. I may take a trip this coming summer, sure is nice to have a 7.5 gallon tank and a thousand cc's.
There's no replacement for displacement........

My personal view is 900-1000cc is all a bike really needs.
If You Are Not Sure If I Am Joking or Not....I AM !!Photos:
http://www.flickr.com/photos/knifemaker1954/sets/
I was pretty happy with the numbers, I actually expected them too be lower because of drivetrain losses. Mine is earshaved and mildly jetted, so that seems like a consistent hp number.
I'm not as concerned with the HP number as the torque number. Add a hill and/or extra weight and she does tend to bog down.
Any feedback on what value there is in adding torque cones to the exhaust?
Sent from Motorcycle.com Free App
I'm not as concerned with the HP number as the torque number. Add a hill and/or extra weight and she does tend to bog down.
Any feedback on what value there is in adding torque cones to the exhaust?
Sent from Motorcycle.com Free App

Mods
Voltmeter/clock/temperature gauge
HD Electra Glide Fairing
Earshave/Coastered/CA emissions - gone...

R/R relocated
Nightster seat
Tombstone taillight
Drag specialties turn signals relocated
Sportster progressive shocks... Dropped rear 1 1/2"
Progressive Fork Springs dropped front 1"
NGK plug wires and iridium plugs
Coil Relay Mod
Paint
ACCT to MCCT
Honda Rebel luggage rack
VN800 Handlebars & controls
Screamin Eagle mufflers
F&S Engine Guard & Kury highway pegs
Bog down? How big are you? My Vulcan with passenger and 60 lbs of luggage went up hills with no problem. Perhaps your jetting is a bit off, or you forgot you can downshift....
Not sure what "torque cones" are but sounds like they just constrict the exhaust...the bike as stock has a well tuned exhaust. Guessing torwue cones are for folks that run straight pipes....

Not sure what "torque cones" are but sounds like they just constrict the exhaust...the bike as stock has a well tuned exhaust. Guessing torwue cones are for folks that run straight pipes....
If You Are Not Sure If I Am Joking or Not....I AM !!Photos:
http://www.flickr.com/photos/knifemaker1954/sets/
I did that 600mi trip with full luggage and my 250ish pound self, and had no issues. I always just downshift on hills and keep the RPMs over 4k. It is a Japanese engine so it's not afraid of mid-to-high RPMs

1986 Kawasaki Vulcan 750
NGK Iridium Plugs #7803/DPR7EIX-9
Duralast Gold ETX15 AGM Battery
Coastered & Shaved
TOC MCCTs
Metzeler ME880 [110/90-19, 170/80-15]
Balance Dampers Replaced
Tuxedo Mod
Rebuilt Forks w/ Progressive Springs
V&H Cruzers
VN750.com Grill Cover
Meanstreak Seat
Emgo 23-92411 Handlebars
MOSFET FH012AA R/R
1990 Kawasaki Vulcan 750
1998 Honda VFR800 FI
2014 Honda VFR800F
1989 Pontiac Firebird Formula 350
Quote:
Originally Posted by thtanner
View Post
I did that 600mi trip with full luggage and my 250ish pound self, and had no issues. I always just downshift on hills and keep the RPMs over 4k. It is a Japanese engine so it's not afraid of mid-to-high RPMs 

i think people are afraid to push the RPM on the VN750, but i swear this bike LOVES screaming above 4K RPM

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Light Bar mounts:https://www.vn750.com/forum/showthread.php?t=23644
Turn signal light inserts LED:
https://www.vn750.com/forum/showthread.php?t=21752
https://www.vn750.com/forum/picture.p...pictureid=2537

2006 VN750
VROC # 34354
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