Malossi 221 MHR exhaust

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mick1
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Thu Dec 27, 2018 8:17 pm

Hi

Anyone using the MHR 221 kit, if so what exhaust are you using and with what results.

Thanx

cartmel808
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Main scooter: 1975 Vespa Rally 200 Femsa
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Fri Dec 28, 2018 12:21 am

I used a Scooter & Service pipe on my 221 mhr with very good results... 31hp & 23lb/ft.
https://m.youtube.com/watch?v=nSH-JWEqxUU



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cgt75b
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Sat Dec 29, 2018 3:37 pm

Nice! I was hoping for some footage of it garn upt road, what's it like to ride power/delivery?

Cheers Cgt75b

cartmel808
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Sat Dec 29, 2018 10:07 pm

cgt75b wrote:Nice! I was hoping for some footage of it garn upt road, what's it like to ride power/delivery?

Cheers Cgt75b
It was very quick Patrick & good fun (in small doses)... power delivery isn’t subtle with the MHR kits and this one came on pipe with a proper ‘kick up the arse’... It did have sufficient bottom end grunt to allow you to ride it ‘off pipe’ through town - but it was only ever really happy in the power @ WOT.
I no longer own that scooter & sold it on last year.


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mick1
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Sun Dec 30, 2018 10:56 am

I'm putting the MHR kit on a Lambretta (not a 5 minute job !!) and was wondering whether to modify a Vespa exhaust suited for the kit (as shown in video), alter a Lambretta exhaust or build a new one.

The cost puts me off modifying a Pipe &Service exhaust and the same can be said for a Lambretta exhaust. Unless something cheap crops up i'll have a go at building a bespoke one.

cartmel808
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Posts: 524
Joined: Tue Feb 04, 2014 10:35 am
Main scooter: 1975 Vespa Rally 200 Femsa
Location: Durham, England
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Sun Dec 30, 2018 1:05 pm

mick1 wrote:I'm putting the MHR kit on a Lambretta (not a 5 minute job !!) and was wondering whether to modify a Vespa exhaust suited for the kit (as shown in video), alter a Lambretta exhaust or build a new one.

The cost puts me off modifying a Pipe &Service exhaust and the same can be said for a Lambretta exhaust. Unless something cheap crops up i'll have a go at building a bespoke one.
Ah right... you could try Mick Abbey, he builds bespoke pipes for 2strokes.


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mick1
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Sun Dec 30, 2018 4:14 pm

I live in York and have been to Mick Abbey's for a dyno session, so it's looking a good option.

Thanks for input.

225worb
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Thu Jan 03, 2019 10:01 pm

I have been running a handmade one off pipe on all my malossi cylinders for many years ( the exhaust is 30 + years old) and it worked really well but of course as the mhr came out and v force reeds etc etc tech changed and thought that the pipe needed changing to something more up to date, I've had a scooter and service pipe made to the same routing (up inside the panel as my old pipe and it works with a lot more grunt sounds the nuts and looks pretty sweet too..

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