49 cc's of speed

**McJim** · 10th April 2008, 20:58

Apparently they go really fast when you drop them out of a plane.

**orange** · 10th April 2008, 21:00

still working on a couple of projects for me when time is avaiable.
there is going to be a return to open class BUT this time the game is going to be alot higher, new one off parts, alot more power. Over the last year or so my bike has come second to customers and I end up trying to get ready night before and it doesn't work.
this time the BZM will be a killer.

If you need help with your setup,let me know and will point you in right direction.

**skidMark** · 10th April 2008, 21:02

I used to have a 110cc mini chopper modified to do 120kph.

Also a 90cc prototype custom turbo'd pit bike that would do 140kph.

**Gadgit** · 10th April 2008, 21:05

Yea I have knoticed your bike came second to other ventures... always rushing to get it together on race day... I'll throw mine toghther and see how it goes (gaskets are cheep) then go from there... you may see the engine in the post one of these days ... might invest the money from my stolen bike into flowing the Duke...

**dangerous** · 10th April 2008, 21:10

50cc... easy try the Kreidler @ 210kph and that was in 1965

**Gadgit** · 10th April 2008, 21:17

I't's not all about top end...... it's how fast you can get there.... Polini 910 GP3 Duke Rep 39.8cc 5 port 2 stroke 0-100km/h in 4 sec.... lets see thats better then most large displacement production engines....

**orange** · 10th April 2008, 21:37

yep that right gadgit.
I would say most of these boys would need nappies if they rode a open bike.

**YellowDog** · 10th April 2008, 21:55

I weigh 95kg and could get 85kph out of my old Malaguti 50cc.

Still too slow!

**Dodger** · 11th April 2008, 09:46

My Chinese 50cc scooter has a speedo that indicates up to 90. I've had it past that on a very slight slope.

On the flat, 80kph

My weight is around 100kg.

**YellowDog** · 11th April 2008, 12:29

Originally Posted by Dodger

My Chinese 50cc scooter has a speedo that indicates up to 90. I've had it past that on a very slight slope.

On the flat, 80kph

My weight is around 100kg.

Like me, you also need to losse weight

**Aero165** · 12th April 2008, 09:58

Originally Posted by orange

yep that right gadgit.
I would say most of these boys would need nappies if they rode a open bike.

Bet I could do it without bowl movements!

**orange** · 12th April 2008, 15:48

Gadgit how is 14% increase in air flow sound?
We have found a couple of areas that respond very well, owner will let us know in about two and half weeks when cylinder gets back to his country.
it will be a jet and looking forward to getting mine on bench- open or other mod classes could be a whole lot different in future.

**Gadgit** · 14th April 2008, 12:16

Sounds like a good increase there Orange... international customer aye..hitting the big boys back pockets lol.. Yea I'd like to see the open engines really opened up, so far most of us are just bolting on HP (apart from yourself and Bretts old GRC)

**orange** · 14th April 2008, 21:05

trying to get mine on this week, will let you know what cfm we start with and might let you know where it finishes or well close. Will keep you posted.