Greetings:
Hmm, I wonder how cutting the dome will affect compression?
High RPM Goals.
Moderator: Moderator
- Wheelman-111
- Moderator
- Posts: 11325
- Joined: Wed Oct 22, 2008 5:09 pm
- Location: Deepinnaharta, Texas
Re: High RPM Goals.
Wheelman-111
Most of my money is spent on scooterparts. The rest is just wasted.
"ISO": '03 Vespa ET4 Malossi187 74MPH
Flash 9: 2001 Elite SR Contesta 72 ZX Tran, 9:1 Gears, Stock Airbox/Carb/Pipe 58.8 MPH
Punkin: 2010 Vespa/Malossi S78, 61MPH
Most of my money is spent on scooterparts. The rest is just wasted.
"ISO": '03 Vespa ET4 Malossi187 74MPH
Flash 9: 2001 Elite SR Contesta 72 ZX Tran, 9:1 Gears, Stock Airbox/Carb/Pipe 58.8 MPH
Punkin: 2010 Vespa/Malossi S78, 61MPH
-
- Goped
- Posts: 58
- Joined: Fri Jan 19, 2018 11:25 pm
- Location: United States
Re: High RPM Goals.
Back at it again after doing some part swaps. New metro fork swap and a af16 on the side for real speed when i get tired of or ruin all my af05 jugs and cases. Flex hone, suzuki 41mm rings, and more on the way. I found out the honda hobbit head also fits our scoot so i have been looking at possible head mods. One of the hobbit heads has the spark plug off center which i wanted to try. Im chopping up the piston crown tonight to open the transfers and exaust port a lil earlier and aim the transfers to the intake port. The piston in the scoot only has the intake and exaust side of the piston cut to see what happens. Pistons exaust side is flush with the port now when the piston is all the way down. I will try to take snap some photos when i get a chance.
Re: High RPM Goals.
After burning a hole in a crown, I saw how thin it actually is. Mic the thickness before cutting and dont get too aggressive with it. I imagined it would be thicker than it was. Keep us updated!
I need to find some new haters...the ones I have are starting to like me.
-
- Goped
- Posts: 58
- Joined: Fri Jan 19, 2018 11:25 pm
- Location: United States
Re: High RPM Goals.
A few snapshots just to keep updated. I would like to start grinding on my 85 piston as i like the dished pistons a little better and i think its shape will aid what i hope to achieve.
- Attachments
-
- jug3.jpg (36.85 KiB) Viewed 3318 times
-
- jug2.jpg (35.77 KiB) Viewed 3318 times
-
- Piston is always in the way of incoming flow and as the piston comes up it abruptly cuts off flow. A 45-50 degree slant at the crown would open the port sooner and taper of the flow of air/fuel rather than just cut it off.
- jug.jpg (47.7 KiB) Viewed 3318 times
Re: High RPM Goals.
how did you disable the bystarter? its default off position is going to be choked.