Long time lurker here. If we assume the inlet port is at 12 o'clock looking from the front . If we could twist the port layout clockwise to say 2 o'clock then more room for inlet re engine mounts and posibaly more exhaust clearance.
Cheers Jim
Search found 4 matches
- Thu Mar 05, 2015 11:44 am
- Forum: Lambretta Tech
- Topic: biggest bore on a lambretta
- Replies: 23
- Views: 9910
- Wed May 18, 2011 2:37 am
- Forum: Lambretta Tech
- Topic: Piston & Head Damage (Detonation???)
- Replies: 23
- Views: 9682
Re: Piston & Head Damage (Detonation???)
Hey, years ago when tuning a 150 I put the piston in back to front. Got the exact result you have.Just make sure the top ring groove hasnt tightened up and restricting ring movement.
Cheers Jim
Cheers Jim
- Tue Jun 22, 2010 1:06 pm
- Forum: Lambretta Tech
- Topic: Proxxon 220
- Replies: 0
- Views: 1191
Proxxon 220
Fellow Porters, will the Proxxon 220 fit down a 57mm bore? Alternatively whats my next cheapest option.Cheers Jim
- Mon Apr 19, 2010 2:49 pm
- Forum: Lambretta Tech
- Topic: Port Casting
- Replies: 1
- Views: 1400
Port Casting
Guys,
Currently porting another 150 barrel. It occurred to me to make a cast of the transfers before and after to check volumes and angles. What do you use? silicon?
Thanks in advance. Jim
Currently porting another 150 barrel. It occurred to me to make a cast of the transfers before and after to check volumes and angles. What do you use? silicon?
Thanks in advance. Jim