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Offline mcinturff

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Horsepower Question
« on: March 11, 2015, 02:00:44 PM »
What would it take to get a 750 up to the same power that a stock KZ1000 makes?
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74 CB750

Offline chewbacca5000

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Re: Horsepower Question
« Reply #1 on: March 11, 2015, 02:03:35 PM »
Quote from: mcinturff on March 11, 2015, 02:00:44 PM
What would it take to get a 750 up to the same power that a stock KZ1000 makes?

Short Answer is about $3 to 5k

Here read this

http://forums.sohc4.net/index.php?topic=98517.0
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Offline Powderman

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Re: Horsepower Question
« Reply #2 on: March 11, 2015, 02:06:38 PM »
Take the wheels off the CB and put them on the KZ and you have it.  :)
The CB makes what, 67-68HP?The KZ makes 83-90HP depending on year.
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Offline seanbarney41

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Re: Horsepower Question
« Reply #3 on: March 11, 2015, 05:43:51 PM »
Quote from: Powderman on March 11, 2015, 02:06:38 PM
Take the wheels off the CB and put them on the KZ and you have it.  :)
The CB makes what, 67-68HP?The KZ makes 83-90HP depending on year.
in realistic, modern day chassis dyno numbers the cb makes between 50-55 and the KZ makes 70-78?...pretty tough to do and still be streetable with a CB


...and expensive too!
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If it works good, it looks good...

Offline PeWe

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Re: Horsepower Question
« Reply #4 on: March 12, 2015, 04:25:13 AM »
836, ported head and hotter cam made my CB750 to be able to NOT being passed by the Kawasaki 1000 back in 1983-84.
It will cost some when the cam chain needed to be replaced by HD cam chain with opened cases, new primary chains and chain tensioners. While there discover bad bearings, clutch.

Head needed  some guides, valves, HD springs.....

My repair/upgrade back then costed like a NEW Kawasaki 1000J  :(  I'm happy today that I kept my old CB750!  ;D ;)
Who want a 1000J? ???

The last 3 years I have done it again!! I should have known when I started... ::) The total will be same or very close as a new CB11000.
But, I really like my CB750K6, full of memories when I was younger, 18-29.
« Last Edit: March 12, 2015, 04:29:07 AM by PeWe »
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CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline ekpent

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Re: Horsepower Question
« Reply #5 on: March 12, 2015, 06:20:21 AM »
This is an interesting chart showing what these people say is some true horsepower numbers. If you scroll down they list a 1970 CB750 , which should be stronger than other K's, at between 45-48 HP. http://www.factorypro.com/dyno/true1.html
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