Author Topic: Drug out the Polonda (Read 7112 times)

Polonda · « **Reply #15 on:** July 19, 2013, 08:44:56 AM »

Quote from: genoapb;4577

How in the world do you keep that front end down with those paddles and that swingarm? I think black rims would look great on there too. Post some more pics of that beast.

In the picture it has a +6 swingarm on it. I run that arm with my bar at the track to get more weight over the rear tires. For the dunes I have a +12 I run. But due to a stock chassis and no weight being removed at all it's still pretty Heavy in the front. I can actually sit on the back of the seat when launching and not pull the front tires. I have the front shocks strapped also(street bike drag racing trick)

ISU · « **Reply #16 on:** July 19, 2013, 08:33:59 PM »

Did you ever get it to run right? I thought I remembered you having a ton of problems with this motor, might be thinking of someone else though.

I always thought polandas were cool!

Polonda · « **Reply #17 on:** July 19, 2013, 09:17:54 PM »

Quote from: ISU;4690

Did you ever get it to run right? I thought I remembered you having a ton of problems with this motor, might be thinking of someone else though.

I always thought polandas were cool!

Your thinking of a different member from .net a while ago. I believe he finally sold the motor. No problems with mine!

GO OVRIT · « **Reply #18 on:** July 19, 2013, 10:04:16 PM »

Can you post some details about the engine. I'm sure I probably read about it on .net long time ago, but I don't remember. What bore and stroke, rod, intake, reed cage.... Does it have much low end, or is it mostly top end?

Polonda · « **Reply #19 on:** July 19, 2013, 10:26:33 PM »

Quote from: GO OVRIT;4705

Can you post some details about the engine. I'm sure I probably read about it on .net long time ago, but I don't remember. What bore and stroke, rod, intake, reed cage.... Does it have much low end, or is it mostly top end?

72mm stroke
84.5 mm bore
15.5:1 UCCR
~220PSI
201 exhaust
130-132 transfer(can't remember exactly off the top of my head)
Ktm rod
tins welded
welded transfers
rotax 800 reed box
custom intake
vforce reeds
stock head dome filled and machined to my specs
cylinder bolt hole ears have extra material added so don't brake off
48 Lectron dual power jets and cast dual inlet bowl
Alky
1-4 override trans

Think that about covers it....

All work on the motor was done by me including machining. Even though the port timings are drag timings this thing has a ton of torque. Motor runs really well in my opinion, especially since some back yard hack built it. :wink-new: