Lambretta Tuning Options

Anything related to Lambrettas... ask tech questions, post helpful info, or just read and learn.
tomdavid1988
registered user
Posts: 88
Joined: Fri Jan 09, 2009 3:18 pm
Location: Cardiff
Contact:

Done bought a lambretta at the weekend, looking at possible tuning options, always fancied a TS1 but have a set of GP150 casings in the shed, as I know f@@k all about Lambrettas, i'm just looking for some tuning advice, i.e what sort of kit I could go for on 150 casings and if I was to go for a TS1 what would be the best starting point, new SIL engine?
User avatar
GP Kevo
registered user
Posts: 321
Joined: Wed Mar 11, 2009 7:48 am
Main scooter: 1969 150 DL / GP225 TS1
Location: Warsaw
Contact:

No need for TS1 when you can go RB20 (RB200), made for small block Lambrettas.

http://www.afrayspeed.co.uk/online_catalogue/rb/rb.html
User avatar
corrado
Dealer
Posts: 2588
Joined: Thu Jan 08, 2009 1:12 am
Main scooter: Lambretta GP
Location: Top of Blackpool Tower
Contact:

Or there's the Imola kit. RB20 and Imola kit will get around 20bhp out of the box with decent carb and expansion exhaust.
User avatar
SpanishSX200
registered user
Posts: 48
Joined: Wed Mar 10, 2010 11:54 am
Location: Beckenham, Kent
Contact:

You can also go for the Race Tour 190, this will run with the carb on the standard side and no reed block. I have an RT 230 which is excellent, running with a PWK 28 mm and a Dev-tour exhaust.
tomdavid1988
registered user
Posts: 88
Joined: Fri Jan 09, 2009 3:18 pm
Location: Cardiff
Contact:

like the sound of the RB20 would this be a good bolt on kit then, no porting neccesary? what about gearing etc, I have standard GP150 gears, but don't have a carb or clutch.
User avatar
Stokie
registered user
Posts: 341
Joined: Wed Jan 07, 2009 5:24 pm
Contact:

tomdavid1988 wrote:like the sound of the RB20 ............. but don't have a carb or clutch.
You'll deffo need a carb and a clutch - that's for sure ;)
tomdavid1988
registered user
Posts: 88
Joined: Fri Jan 09, 2009 3:18 pm
Location: Cardiff
Contact:

Stokie wrote:
tomdavid1988 wrote:like the sound of the RB20 ............. but don't have a carb or clutch.
You'll deffo need a carb and a clutch - that's for sure ;)
Bugger, that'll be why my P2 ain't running right then!
User avatar
corrado
Dealer
Posts: 2588
Joined: Thu Jan 08, 2009 1:12 am
Main scooter: Lambretta GP
Location: Top of Blackpool Tower
Contact:

tomdavid1988 wrote:like the sound of the RB20 would this be a good bolt on kit then, no porting neccesary? what about gearing etc, I have standard GP150 gears, but don't have a carb or clutch.
AF close ratio gearbox would be better option.
RB kits need a special RB exhaust and RB 20 needs a crank with a TV length conrod.
Advisable with any kit to match up transfers rather than bolt it straight on.
User avatar
drunkmunkey6969
Moderator
Posts: 2838
Joined: Sun Jan 04, 2009 1:42 pm
Main scooter: '69 Lambretta GP
Location: North Yorkshire
Contact:

For a Lambretta 'newbie' i'd recommend somthing a bit less 'demanding' than the RB20, for economy i'd go for a good old fashioned porting job on a 175 or 190 kit! Bolt on a cheap sterling pipe and a 30mm Delly and yer off!

For a bit more 'umph' and exotica, try the Muggello or Imola, you can still use the sterling and Delly, and/or spend a bit more on gearing and so on.

At the 'top of the tree', the RT kit is a bit more dosh and considered fast touring, RB20 is a revvy beast and needs specific crank/exhaust/carb /gearing combos to make the most of it.

Choices, choices!!! ;o)
See our YouTube scooter channel for Tech-help: https://www.youtube.com/c/TheScooterFactory/videos
shocky
registered user
Posts: 2139
Joined: Wed Jan 07, 2009 12:33 pm
Location: cheltenham
Contact:

depends on what you want and how much money, most of that engine wont be usable on a RB and if you dont know much about lammys then someone is gonna have to build it for you a starting price for that engine to do it your self with good(altho not the best) components is £1500
We sleep soundly in our beds because rough men stand ready in the night to visit violence on those who would do us harm
Post Reply Previous topicNext topic
  • Information
  • Who is online

    Users browsing this forum: Google [Bot] and 13 guests

cron