Zen onto CY crankcase

[flarcer]

I have a tired CY 23cc motor, if I get a Zenoah head and piston kit, will this bolt directly on? What are the pros and cons? Thanks

 

[voo2doo]

Yep! It will. I have done this with three engines and I flog my cars! They hold up as good as any full Zen mill.You do have to use the CY spacers in the wrist pin though.Heres a vid or two to show the grunt they have.
J.
http://www.youtube.com/watch?v=g1Kawq_vUQw
http://www.youtube.com/user/jackobyte7#p/u/12/RS7xdm3F924
http://www.youtube.com/user/jackobyte7#p/u/14/ADEFdYWNzk0

The first vid is me breaking the engine in.The second is my truck against my mates.The third is my beetle bashing with my mate. The beetle has a CY bottom end.
J.

 

[voo2doo]

Oh,p.s,don't put a 23 back on,go for the better 25.5cc or higher.
J

 

[flarcer]

This is going back into an onroad car, so I will stay with a 23. Should I look into upgrading the crank bearing?

 

[voo2doo]

Just use new standard bearings and new crank seals.
J.

 

[flarcer]

Thanks a whole lot.

 

[voo2doo]

Hey,have you just tried re-ringing it yet? That will put a load of compression back into a tired mill.
J.

 

[flarcer]

No I haven't. I just wanted an excuse to pump it up.....way up.

 

[voo2doo]

Ha ha.Got ya now.
J

 

[zouz10]

I have also done this. My mills are like Frankenmills.. LOL

I've heard people say that the plating on the CY heads are not as good as the Zen. Personally, i don't really care because i just change the head as soon as it starts loosing compression.

I would do what voo2doo says on the ring, however, the walls are usually all scratched up..


Chris

 

[Bigger the Better]

A 23cc head can be had for about the price of a ring. Get them both if changing the other. Or you could go for a G230 head and upgrade the motor to one that you can just change rings. a ZEN! You could also upgrade the crank to a stroker.

 

[flarcer]

I'm getting the complete G230RC head/piston kit. Stroker in an onroad? Is that a good idea tractionwise?