Author Topic: Honda CB750 1204cc RPE race engine 130whp Wakefield Park  (Read 2348 times)

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Offline whiteryno111

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Offline turboguzzi

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Re: Honda CB750 1204cc RPE race engine 130whp Wakefield Park
« Reply #1 on: December 21, 2015, 02:54:26 PM »
very nice, but now that i see that the thing runs on methanol, the hp numbers make a bit more sense :)


Offline joesmotos

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Re: Honda CB750 1204cc RPE race engine 130whp Wakefield Park
« Reply #2 on: December 21, 2015, 05:07:40 PM »
thats just cool i dont care who you are...

Was the class you run in a combined race?
Thought i was watchin Rossi there for a  minute,you passin all those guys..

Offline Jerry Rxman Griffin aka MuthaF'er

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Re: Honda CB750 1204cc RPE race engine 130whp Wakefield Park
« Reply #3 on: December 21, 2015, 05:32:31 PM »
4th fastest lap and on a '750'. Sounds like a monster.

How much HP bump from the methanol would you predict or did you do a comparison? What size pistons? Modified stock block? You're here now so you gotta talk  ;) ;D

You going to make any parts, etc available in the States?
As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline Sam Green Racing

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Re: Honda CB750 1204cc RPE race engine 130whp Wakefield Park
« Reply #4 on: December 22, 2015, 07:45:22 AM »
Jerry, the methanol its self don't give a power increase, it's the compression it allows you to run that gives it.

Sam. ;)
C95 sprint bike.
CB95 hybrid race bike
CB95 race bike
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JMR Racing CB750A street ET drag bike

Offline whiteryno111

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Re: Honda CB750 1204cc RPE race engine 130whp Wakefield Park
« Reply #5 on: December 23, 2015, 03:46:38 AM »
Hi

They did combine classes in that event, next race will be at Philip Island in January 2016 against the Harris XR69's.

The methanol allows you to push the engine further, more compression, more timing advance, helps the air cooled run cooler which is a big deal.

That engine was never tuned for pump fuel, it was always on methanol.

Pistons are 78mm, modified stock barrel with hardened bores.

Presently we only build complete engines because we aren't able to sell anyone a kit because the engine is modified top to bottom so if we were to sell something it would be basically a complete engine, or, something that wouldn't be any different from what you can get off the shelf in the states already.

Merry Xmas
Regards

RPE Racing


Offline stikman

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Re: Honda CB750 1204cc RPE race engine 130whp Wakefield Park
« Reply #6 on: December 24, 2015, 07:14:31 AM »
Sounds so mean, and that acceleration is glorious!  Well done
1977 CB750A "High Horse": 836cc, mild porting, custom cam, K5 roundtops, v-stacks...
1973 CB750K D5 plunger frame chopper currently building..