horsepower question

I bought a 1983 Canadian J model KZ1000 and it has an advertised horse pwer of 102. My 1981 LTD kz1000 has an advertised horse power of 92. Why is there a difference they both have the same bore and stroke ?

kboom36 wrote:

I bought a 1983 Canadian J model KZ1000 and it has an advertised horse pwer of 102. My 1981 LTD kz1000 has an advertised horse power of 92. Why is there a difference they both have the same bore and stroke ?

The most likely differences are: Valve sizes, cam timing and carburettor size. Of course it could just be marketing flim flam too. As these numbers are measured at the crank or counter shaft and not the rear wheel.

Sam

I think it was recently covered here somewhere but the LTD and CSR cams are slightly milder than the J cams. Most likely for more bottom end torque since they are considered "cruisers". The J gets some moderate cams since its considered a sporting maching.

Later, Doug

kboom36 wrote:

I bought a 1983 Canadian J model KZ1000 and it has an advertised horse pwer of 102. My 1981 LTD kz1000 has an advertised horse power of 92. Why is there a difference they both have the same bore and stroke ?

I know the canadian buikes for my 1979 KZ750 used bigger carburetor jets.

I doubt it would give +10, but US bikes were so smogged out back then it's possible.

Post edited by: bountyhunter, at: 2008/01/24 14:36

the kz had more cam and better carbs.

advertising;)

Might just be Canadian horsepower. Isn't it something like 1.2 Canadian horsepowers to one US Horsepower?:woohoo:

Jay

APE Jay wrote:

Might just be Canadian horsepower. Isn't it something like 1.2 Canadian horsepowers to one US Horsepower?:woohoo:

Jay

most people dont know but Ape Jay was actually doing the tuneups and slipping bigbore kits in the Canadian bikes for Kawasaki in the back of his shop in those days:P

APE Jay wrote:

Might just be Canadian horsepower. Isn't it something like 1.2 Canadian horsepowers to one US Horsepower?:woohoo:

Jay

:laugh: Used to be that way - but Canadian hp is now even with U.S. hp due to our weak economy.

As far back as the mid 60s all jap bikes for expoet to europe or britain were rated higher hp.than american versions.i was told by a honda dealer around 1972 it was a government reg.thing.

Here is a report about - Performance is all about TORQUE
A nice report.

www.msgroup.org/forums/mtt/topic.asp?TOPIC_ID=4634

APE Jay wrote:

Might just be Canadian horsepower. Isn't it something like 1.2 Canadian horsepowers to one US Horsepower?:woohoo:

Jay

you are refering to the uk "HP". they use a different standard (no im not talking std vs sae) they use PS. 1 PS = 75 kp·m/s = 0.73549875 kW = 0.9863201652997627 HP (SAE)

Post edited by: 77KZ650, at: 2008/02/02 01:40