Scootopia Big Bore

Anything related to Lambrettas... ask tech questions, post helpful info, or just read and learn.
grimspeed
registered user
Posts: 192
Joined: Sun Dec 13, 2009 12:46 pm
Main scooter: gp 283 kx
Location: clitheroe lancs.
Contact:

Anyone tried or dynode one of these back to back with say a BGM or other big bore's ?
i have a horrible feeling.things are going to go bang
Timbo
registered user
Posts: 1276
Joined: Tue Mar 03, 2009 2:46 pm
Main scooter: SX200 and GP230 RT
Location: Luton area.....
Contact:

Never understand why there are not more reviews and tests in Scootering Mag. Same engine but differant pipes etc..
onthelam
registered user
Posts: 146
Joined: Thu Feb 26, 2015 3:54 am
Main scooter: not yet
Location: Bangkok
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^ I think because everyone's desires, needs and requirements are different. But I do understand your sentiment. Probably the best way would be to go riding with some mates and see who has what and how it performs for them. OR just buy one and see what it is like. If you don't like it buy another. This is what two stroke racers do. But they have a captive group of guys to study.

Here is what one man said!
Exhaust: TSR do an expansion pipe we have tried, well made and cheap at around £160.00, well worth a look.
grimspeed
registered user
Posts: 192
Joined: Sun Dec 13, 2009 12:46 pm
Main scooter: gp 283 kx
Location: clitheroe lancs.
Contact:

Well I bit the bullet and bought one .
Looks good in comparison with the Indian one's !
ie AF and KBA . Two piece u-bend with spring connectors.
And it comes with a gasket and clamp and a spring pulling tool .
£120 to the door direct from Scootopia.
Longer inlet cone from the U-Bend to the box like a Ancilotti !
I intend to run this on a STG 4 185 cast iron kit with a 24mm Mikuni .
Just have to wait and see now!
i have a horrible feeling.things are going to go bang
dave wheeler
registered user
Posts: 214
Joined: Fri Feb 19, 2010 5:33 pm
Contact:

got one on my tv175, 24mm phbl, electronic and cyclone box, otherwise standard, not too noisy, seems well made and happy with how it goes, would love to see a direct comparison with a mb clubman, but the werent available when i needed a pipe
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corrado
Dealer
Posts: 2588
Joined: Thu Jan 08, 2009 1:12 am
Main scooter: Lambretta GP
Location: Top of Blackpool Tower
Contact:

It looks like it was based on the Ancillotti so a decent saving on cost. Decent build quality too.
lammydave
registered user
Posts: 200
Joined: Wed Jan 07, 2009 1:13 pm
Main scooter: Li150Special RT195
Location: Ashford, kent
Contact:

just bought one, and about to fit it to my RT195 kitted scoot....

I will report back, hopefully by Wednesday....

Could well be selling a JL3 if this one works out....
Li150 S2 1959. Li150 Special 1964. GP125 1970. Jet 200 Performer 1981. 1967 Sx150. 1959 Li150 S1. 1968 li125 Series 4
Timbo
registered user
Posts: 1276
Joined: Tue Mar 03, 2009 2:46 pm
Main scooter: SX200 and GP230 RT
Location: Luton area.....
Contact:

Make sure you bolt it underneath the crank case (MB bgm experience)......interested to know what you think..
dave411
registered user
Posts: 360
Joined: Sat May 10, 2014 7:31 am
Main scooter: Li 125
Location: Cardiff
Contact:

Is it important to bolt under the crankcase?
My Li doesnt have a hole there.
bristolmod
registered user
Posts: 1741
Joined: Wed Jan 07, 2009 8:42 am
Main scooter: Lambretta TV175 S3- what else!
Location: Bali-Hai bar, Locarno Ballroom Bristol, 1967!- mines a Brown Split!!
Contact:

Innocenti put the tapped hole in the crankcases during the S3 run due to fracturing problems on the end tail pipe and the front bracket. Does help and gives a more secure fitting.

It is possible to drill the casing on earlier cases, but I think it means moving the additional bracket on the exhaust to line up with the newly drilled hole (The factory tapping was in a different place to the only available place for the DIY mod.)

I'm running an early TV175S3 and haven't bothered- no problems to date despite my home-brew 42mm Clubman/ chrome outrigger set up (looks plus Clubman power and that oh so good "pop pop" sound!! :D )

There is also the danger of drilling too deep! :shock:

Chris
Scootering since 1968.
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