I had this lil engine commisioned for the next project

Zunspec4 · Post by **Zunspec4** » Tue Apr 21, 2009 10:42 am

Should run even harder when the proper chambers are fitted:

http://www.motorcyclenews.com/MCN/News/ ... to-200bhp/

Should drop straight into a T500 frame no worries , might have to upgrade that 2ls F/brake

Cheers Zunspec

jaybob · Post by **jaybob** » Tue Apr 21, 2009 11:19 am

200 measured bhp without a tuned expansion chamber??? I am speechless, all I can say is good on ya!!! Sounds awesome. It would take more of a man than me to twist the throttle to the stop.

Zunspec4 · Post by **Zunspec4** » Tue Apr 21, 2009 11:37 am

It's not really mine unfortunately jaybob

. Who knows what the engine cost to develop but it would have been more than I could afford (or engineer).

If it goes into a bike chassis it will make one interesting ride

.

Cheers Zunspec

tz375 · Post by **tz375** » Tue Apr 21, 2009 2:55 pm

Someone forgot to tell them that a 3 into 1 or 4 into one absolutely will not work.

Bloody Kiwis, never listen

Post by **oldjapanesebikes** » Tue Apr 21, 2009 3:43 pm

Incredible !

Probably gets poor gas mileage though ...........

MikeH1A · Post by **MikeH1A** » Mon May 04, 2009 3:08 am

In the true tradition of Burt Munro and John Britten - go brothers

rngdng · Post by **rngdng** » Mon May 04, 2009 3:23 am

"You'll shoot your eye out kid!" What a beast.

Lane

H2RICK · Post by **H2RICK** » Wed May 06, 2009 9:17 am

Where would I get a chassis to contain that brute ???

Too bad they had to use brand H top ends.

Say, I wonder what a V6 with 2 injected Buffalo top ends would do for power ??
Now that's a project for Allan Millyard to consider.....

diamondj · Post by **diamondj** » Wed May 06, 2009 9:22 am

I've always wanted to build a Dodge Tomahawk clone out of a 200hp Suzuki V-6 two stroke outboard engine. Single wheels front and rear so it handles (and more importantly turns) like a motorcycle but I've not been able to find a cheap (read nearly free) used V-6 outboard to play with.....

Jim

pjmcburney · Post by **pjmcburney** » Wed May 06, 2009 6:20 pm

tz375 wrote:Someone forgot to tell them that a 3 into 1 or 4 into one absolutely will not work.

Bloody Kiwis, never listen

Heh... nice one Richard.

Makes one think though - can size (i.e. cc's) overcome the limitations of a non-tuned exhaust on a two-stroke?
Conversely, how much hp can be wrought from a big-bore engine with a properly tuned set of pipes?

On very small engines (125's for example) it's absolutely imperative that the exhaust system is correct otherwise the sheer size (or lack thereof) can't possibly overcome its cc's limitation.

On that engine, the fact that it's four CR500's bolted together would preclude the need for an efficient exhaust, surely?

Food for thought
Cheers
Paul

Buffalo-guy · Post by **Buffalo-guy** » Wed May 06, 2009 11:11 pm

The potential is almost mindboggling. A well designed, 4 cylinder, twostroke race bike of a few years back was capable of more than 200 HP at the rear wheel from 500 cc's. Simple math puts this beast at more than I would be willing to swing a leg over. It does make for interesting thoughts though. Cheers.
Fred

Zunspec4 · Post by **Zunspec4** » Thu May 07, 2009 3:02 pm

Fantastic as that engine might be I have a feeling it may be destined for a car chassis rather than a bike frame

What engine would you build if you had the funds avaialble. My own musings go for a 1000cc V-twin 2st. If the old Suzuki 250 V-twin can put out 100 BHP in Aprilia form you should be able to make a stonking big version. Keep the power down to moderate levels and trade it for tractabilty for a broad spread of power. Anyone got a few million to spare

Cheers Zunspec

Suzukidave · Post by **Suzukidave** » Fri May 15, 2009 7:42 pm

The article said the engine was designed for this http://www.martinjetpack.com/ .

Suzukidave · Post by **Suzukidave** » Fri May 15, 2009 7:44 pm

Zunspec4 wrote:Fantastic as that engine might be I have a feeling it may be destined for a car chassis rather than a bike frame

What engine would you build if you had the funds avaialble. My own musings go for a 1000cc V-twin 2st. If the old Suzuki 250 V-twin can put out 100 BHP in Aprilia form you should be able to make a stonking big version. Keep the power down to moderate levels and trade it for tractabilty for a broad spread of power. Anyone got a few million to spare

Cheers Zunspec

Aaen has a 850cc V4 that puts out 200hp already or a 1025cc that put out 275 http://www.aaenperformance.com/V4_racing_engine.asp