Lambretta & Vespa scooter exhausts - tuning speed performance - Expansion vs Clubman - which?

[@widdowshinstv4843]

Even I understand it now... Cheers Dan.

[@drunkmunkey6969]

Then I have achieved my goal... :)

[@widdowshinstv4843]

@@drunkmunkey6969 And you know how dense I am re: anything more complex than a pencil

[@drunkmunkey6969]

@@widdowshinstv4843 lol :)

[@davidminton2661]

Hi what carb should I use with the new casa x1 200 sport kit with a jet 200 gearbox and a jl3 exhaust 25mm or 28mm

[@anthonyhudson8378]

This explains a lot about what was happening to my P225E back in the day!

[@gavinevans4711]

Already smashed the like button before it had finished. Wish I could go back and do it again.

[@benreadings]

Very very cool video. Brilliantly made and brilliantly explained. Cheers Dan.

[@neuralyser]

Really interesting, graphic depictions are worth a thousand words

[@craigdowding1256]

Brilliant video, very informative and interesting 👍🏼

[@charleswatson7281]

Tremendous video and vital information- thanks

[@richardshipman8399]

very informative thanks for taking time to explain , now i've to measure my port timings n scratch me head some more

[@reccerat4446]

Great info Dan, I have an SX with a Mugello 225 kit on it and a stirling expansion exhaust and quite honestly love it. Is it the fastest, nope, but it has endless grunt and sits around 70 nicely not getting hot at all.

[@kevinhagen7808]

I've toured on my TS1 225 Annihilator, Li150 Italian gearbox with Franspeed Race on 4.8 : 1 final drive ratio (17x48) and it does quite well, it still pulled 4th no problem but with a bit of work between the gears climbing the Austrian mountains though it had no trouble accelerating upwards in the right gear. I'll be changing that to 4.9 : 1, mostly because the new clutch kit I've got is 46 teeth and I've got a 16 tooth front sprocket. Hopefully better acceleration but still tour-able.

[@billsmith1545]

Well explained Dan. I've always said it's a waste of time putting an expansion pipe on a std engine 😊

[@dancycles2079]

Iv just brought a px 125 with a stupid pipe ... Won't pull 4th gear 😂 you answered all my questions.

[@mattlight7363]

Excellent video and for a brief moment you mentioned the black art of port timings, will there be a vid on that cos that's where I have absolutely no clue!!?

[@drunkmunkey6969]

It's all in the pipeline! :)

[@brianlazzar1]

Just stumbled across this, very well explained with graphics. What would you recommend for a standard px125 ( looking to get a kit on in the future 💰

[@BrokenVespaPhil]

Interesting and informative, thanks!

[@robryde4854]

Yes nice video when did you get into scooters ?

[@nickmassey9104]

Great explanation Dan .

[@drunkmunkey6969]

Cheers Nick, there's actually so much more to say on all of these topics, but you have to draw the line somewhere. This video was 20 mins long and I left so much out! lol

[@vespasandengines]

@@drunkmunkey6969 keep telling us about it

[@user-ts8vt8qy8e]

Can we do same vid in a 185 scootopia kit?

[@simoncollins6219]

Good video Dan, what was the final drive ratio recommended for the Clubman with the TS1, you mentioned it for the other pipes, not the Clubman. Cheers Simon

[@user-ts8vt8qy8e]

What’s Best exhaust for a 185 scootopia kit?

[@Jackintheshed]

Hi, have you ever wrapped a pipe and tested it on the dyno ? Would you recommend wrapping expansion chamber exhaust? Cheers Jack

[@vespasandengines]

Great topic to know about...

[@exsoulagent]

So what brand was used on the expansion exhausts ? Good informative vid 👍🏻

[@drunkmunkey6969]

These were the old Chiselspeed ADS pipes, but i think they have been superseded by the CST range now.

[@HighMileageOffroad]

What about jog pipes vs dirtbike pipes? I build motorized bicycles and am trying to get my 69cc 2 stroke engine to run with enough rpm to make 50mph I run a reed valve and mikuni vm18 carb. If you have any questions I'd be glad to answer them!

[@garybrown3880]

Great video Iv got a rt 230 and have to use a 50 slide to sort bottom end have you ever had to do this? Cheers

[@drunkmunkey6969]

Only when the atomiser is an AV268. What’s the rest of your carb settings?

[@garybrown3880]

@@drunkmunkey6969 55 pilot 268 av X7 135 main

[@drunkmunkey6969]

That’ll explain it then :)

[@garybrown3880]

@@drunkmunkey6969 Cheers mate love the videos 👍🏻

[@benhortonben9105]

Great video, great explanation but as a newbie just starting my adventures into scootering I have no idea which exhaust is which! I'll stick with stock for now! 🤦 For future reference is there any guides for beginners?

[@SuperMonik]

if you have Vespa, you can choose Polini Box or SIP Road 3 for stock engine.. It really pulls at low to mid RPM

[@TheModernVince]

Simple: choose your cylinder then your exhaust and finally the gearbox. In your opinion, Dan, is a basic and old school iron 200 stage 4 cylinder with Asso-Werke piston (without skirt) is tuned enough for an expansion or a clubman is a better option?

[@drunkmunkey6969]

I know this sounds vague, but it depends on what gearing you run, what carb you run, how big you are, what passenger/luggage loads you may carry, etc, as to how you perceive the results of fitting it. It also depends on which expansion and which clubman you compare/use, the choices are huge. Engines are best built as a 'whole package'... everything else is a compromise of sorts.

[@TheModernVince]

@@drunkmunkey6969: 70kg plus luggage, full frame scooter, Italian GP200 gearbox, 47/18 sprocket, either 22 SH2 scootopia or Mikuni TM24 carb, depends of exhaust but Scootopia or MBGM V1 clubman exhaust available in the shed for the moment.

[@drunkmunkey6969]

@@TheModernVince that is a really good setup as is, I'd be tempted to fit the Mikuni carb, the BGM exhaust, and also try a 19 tooth front sprocket at that point.

[@ericwalker2172]

Hi Dan I’ve got a SX 200 I’ve taken the old Indian top end out and the 22 jet x car out ,I’ve gone for a BGM 225 kit and on your recommendation fitted a 30 Dellorto carb what would your choice of pipe be , it’s running a Scootopia clubman at the moment I want to keep the classic look thanks 🤔🤔

[@drunkmunkey6969]

SIP club sport would suit it

[@giuseppegreco5455]

good evening I have a px 200 with polini 210 gs piston 30phbh carb very well adjusted + reed valve vforce 4 with an Polini original box exhaust what do you think of this configuration, an expansion is not likely to reduce my current performance or should I go to a box of type BGM bbs or sip road xl viper thank you for your advice and your very explanatory video

[@drunkmunkey6969]

It depends a) how it rides now, and b) how you want it to ride. Combining a 30mm and V-force with a Polini box exhaust seems strange... but does it work for you? If not, then yes you may have to change exhaust.

[@giuseppegreco5455]

@@drunkmunkey6969 yes it works but up to 6500 rev it stagnates, good torque below which arrives early but I feel that it could give more but I am afraid that with an expansion I will lose my current generous torque good for short distance but in a straight line and long road it becomes annoying. With a reed valve it is absolutely necessary to combine it with an expension thank you for your answers PS sorry for my writing I live in belgium and my english is a little eratic

[@drunkmunkey6969]

@@giuseppegreco5455 I think with a reed valve and a touring-based expansion chamber, you will see the best of the engine.

[@giuseppegreco5455]

@@drunkmunkey6969 ok thank you so i will try the sip road xl viper it seems to me to have better ground clearance than the bgm bbs again thank you for your advice a pleasure to watch your video

[@nickbarber4222]

That dip before the power band is a ball ache 😠

[@neill4133]

Used to laugh seeing scorpions and PMs on standard P200s, sound nice but useless in a breeze