The little Ducati Featherweight

[jag767]

Never thought i'd hear it....moaning at how easy and quick a motor swap was : ;D

Made for it.

Haha after what I went through on my other motor swap build I was ready for a fight. I think I can have the metal work done today, then I'm just waiting on parts from Australia and the UK. Exhaust, 12v conversion, cdi, coils, and carb from amazon. I think a realistic goal is to have it completely done, including fresh powder on the frame and fresh paint on the tank in a month or less. If I wasn't waiting for parts I'd say a week. Damn, that means I have to wait a month to ride it!

Oh and something else kinda funny, with a slight shave a cb175 exhaust header fit, lol.

 

[jag767]

Lol chain is the right length and lines up. This is odd.

 

[jag767]

Exhibit A

 

[Green199]

You've stumbled upon something...expect to see more of these swaps in future!

It's gonna look cracking.

 

[Hurco550]

Dang near like it was meant to be ha. Looks great man

 

[jag767]

Hah thanks guys, even a broken clock is right twice a day!

 

[Erskine]

A bit freaky for sure.
And an anti climax, I was looking forward to some open frame surgery.

 

[jag767]

A bit freaky for sure.
And an anti climax, I was looking forward to some open frame surgery.

Me too! I guess the bright side is for anyone who wants to do something different, this is a very easy motor swap!

 

[jag767]

Alright wiseco called me back, great customer service! They will make me the piston of my dreams, if I want 12 of them, lol! Anyone want a high compression ducati 160 piston? $200 each if they don't get coated in anything. They will do them in 62mm, so +1 overbore, and the whole thing will take 12 weeks. Wiseco also needs a bunch of measurements, and someone to send their head in. If someone wants to take care of that part, they can have a free piston.

 

[Barnburner]

Since I need motivation to work on mine, I"m happy to send my 160 head in. Want to PM me the details?

 

[jag767]

Since I need motivation to work on mine, I"m happy to send my 160 head in. Want to PM me the details?

I will forward you all the measurements wiseco needs too. I'd do it myself but I can't guarantee when I'd have time. Now we need 10 more people haha.

 

[Barnburner]

Maybe try posting something on the Motoscrubs forum?

 

[jag767]

Maybe try posting something on the Motoscrubs forum?

Never been there, will check it out.

 

[jag767]

Needs to be sanded to the exact shape but you get the idea.

 

[cxman]

Check with j e pistons they may do one for you

 

[teazer]

If you are serious about pistons, it might be a good idea to pop the head off and see if a better crown shape is possible. Maybe go even larger and change the squish band for example and try to keep the crown as low as possible to optimize the compression/combustion balance. You need a high crown to get high compression and a low crown to get faster flame propagation for better power and somewhere in there is a balance that works best overall.

 

[jag767]

If you are serious about pistons, it might be a good idea to pop the head off and see if a better crown shape is possible. Maybe go even larger and change the squish band for example and try to keep the crown as low as possible to optimize the compression/combustion balance. You need a high crown to get high compression and a low crown to get faster flame propagation for better power and somewhere in there is a balance that works best overall.

100% serious. This little guy will never do what I want it to without it. And if I really get adventurous a cam would be thereafter.

 

[jag767]

In the spirit of lightweightedness (is that even a word?) 3 inch led headlight coming up. And if the doesn't tickle my fancy, I have a whole mess of these and will do something outside the box!

 

[jag767]

Header and exhaust nut got here. Im noticing there may be a problem getting air/fuel in and gas out, the ports are tiny! Like half what i would expect. The exhaust diameter is only 35mm.

 

[jag767]

Quick photos. First real problem in the last one. No place for the carb, may need someone to make me a side draft manifold and face the carb out. I dont do aluminum. Any takers?