Search found 149 matches
- Sun Apr 07, 2013 6:29 pm
- Forum: Lambretta Tech
- Topic: Croft
- Replies: 19
- Views: 4992
Croft
Congratulations to Darrell Taylor and Joe Ravenscroft with 3 out of 4 wins this weekend on the group six Lambretta. Great result for there first race meeting.
- Fri Oct 12, 2012 7:53 pm
- Forum: Lambretta Tech
- Topic: Lambretta Boost Port & Cylinder Scavenging
- Replies: 62
- Views: 25861
Re: Lambretta Boost Port & Cylinder Scavenging
Is that it!!!!!!!!! Lol
- Fri Oct 12, 2012 7:49 pm
- Forum: Lambretta Tech
- Topic: 225 TO 230
- Replies: 9
- Views: 3427
Re: 225 TO 230
Best advice is to give Darrell Taylor a message on here, 60 mil crank and a good tune should be around 30 hp and over 20ftlbs depending on exhaust and carb, from low revs and not a high rever either.
- Thu Oct 11, 2012 12:47 am
- Forum: Lambretta Tech
- Topic: Lambretta Boost Port & Cylinder Scavenging
- Replies: 62
- Views: 25861
Re: Lambretta Boost Port & Cylinder Scavenging
Wot benefit is gained by having the boost port open before or at the same time as the main and secondary transfer ports??
- Thu Oct 11, 2012 12:38 am
- Forum: Lambretta Tech
- Topic: Advice about crack in casing
- Replies: 6
- Views: 2520
Re: Advice about crack in casing
Nothing to worry about, it's just a thin part of the case that won't prove a problem.
- Wed Oct 10, 2012 11:57 pm
- Forum: Lambretta Tech
- Topic: Lambretta Boost Port & Cylinder Scavenging
- Replies: 62
- Views: 25861
Re: Lambretta Boost Port & Cylinder Scavenging
Really!! That's not wot I've used.sean brady scooters wrote:lol,now we are getting into the use of flat top pistons like KTM etc use
- Wed Oct 10, 2012 10:33 pm
- Forum: Lambretta Tech
- Topic: Lambretta Boost Port & Cylinder Scavenging
- Replies: 62
- Views: 25861
Re: Lambretta Boost Port & Cylinder Scavenging
Wot about the angle of the piston crown and the effect it has on every degrees of opening of the boost port and not just a straight flow into the cylinder.
- Thu May 17, 2012 1:56 am
- Forum: Show us yer Scoots!!
- Topic: New RB Ceramic 230cc Engine
- Replies: 69
- Views: 20885
Re: New RB Ceramic 230cc Engine
Its possible with some of the group 6 scooters, over 100mph has been seen more then a few times, and as Eden pointed out the drag on a full frame is quite considerable. I know Stiky's bike engined scooter does high end of 30hp and I think that gets to around 96mph (a real 96mph).
- Wed May 16, 2012 8:43 pm
- Forum: Show us yer Scoots!!
- Topic: New RB Ceramic 230cc Engine
- Replies: 69
- Views: 20885
Re: New RB Ceramic 230cc Engine
Most high powered scooters with full bodywork will top out at under 100mph, not because they haven't got enough power but because the shape of the front end won't allow it to, IMO you'd have to have 40+hp to achieve it.
- Mon May 14, 2012 11:25 am
- Forum: Show us yer Scoots!!
- Topic: New RB Ceramic 230cc Engine
- Replies: 69
- Views: 20885
Re: New RB Ceramic 230cc Engine
The one thing to bare in mind is that this kind of power is achieved without the kneed of welding casings and barrels to create bigger transfers or crank case boost ports which seams to be the norm with most tuning jobs these days. Infact the only welding that's done is to RB Barrels. For me working...