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How to properly launch the M3W #619437
28/02/20 04:31 AM
28/02/20 04:31 AM
Joined: Oct 2013
Posts: 89
Massachusetts & New Hampshire ...
Bluesman Offline OP
Just Getting Started
Bluesman  Offline OP
Just Getting Started

Joined: Oct 2013
Posts: 89
Massachusetts & New Hampshire ...
As a newbie owner, I wonder if some seasoned folks could chime in on how to best clutch and rev the M3W from a standing start.

I assume I don't want to lug the engine when launching in 1st gear so as to not strain the Compensator and also to not lug an engine typically used to power an 800 lb motorcycle. Lugging is never good, but over revving can "smoke" the clutch.

I am wondering what approximate rpm you folks typically launch at in 1st gear?

How are the clutches in these machines? Are they strong enough so that higher rev launches are not an issue? Have many folks had to replace clutches at low mileage?

Probably over thinking it, but thought I would ask....


2019 M3W Black
Previous: 1985 Plus 8
Re: How to properly launch the M3W [Re: Bluesman] #619438
28/02/20 04:39 AM
28/02/20 04:39 AM
Joined: Feb 2019
Posts: 1,830
West of Seattle, USA
LightSpeed Offline
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Joined: Feb 2019
Posts: 1,830
West of Seattle, USA
To high an rpm launch can easily result in a smoking rear tire😊


Stephen
2019 M3W

Re: How to properly launch the M3W [Re: Bluesman] #619448
28/02/20 07:58 AM
28/02/20 07:58 AM
Joined: Apr 2019
Posts: 173
Hertfordshire
O
Obie Offline
L - Learner Plates On
Obie  Offline
L - Learner Plates On
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Joined: Apr 2019
Posts: 173
Hertfordshire
I have timed a few 0-60 and it’s not an easy thing to 🚀 it’s a balance between smoking the clutch or the rear tyre.
Going by how delicate these things are I would say don’t over do it!

Re: How to properly launch the M3W [Re: Bluesman] #619526
28/02/20 12:27 PM
28/02/20 12:27 PM
Joined: Oct 2013
Posts: 89
Massachusetts & New Hampshire ...
Bluesman Offline OP
Just Getting Started
Bluesman  Offline OP
Just Getting Started

Joined: Oct 2013
Posts: 89
Massachusetts & New Hampshire ...
I am just talking about normal everyday driving


2019 M3W Black
Previous: 1985 Plus 8
Re: How to properly launch the M3W [Re: Bluesman] #619532
28/02/20 12:49 PM
28/02/20 12:49 PM
Joined: Mar 2014
Posts: 980
Leicestershire, UK
Bunny Offline
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Joined: Mar 2014
Posts: 980
Leicestershire, UK
There is quite a variation between individual cars, depending on how much play there is in the drivetrain, centa slop, drive belt tightness etc, etc. Therefore, there isn't any one answer to your question. Just treat it with respect and find out what works for your car.


Andy
Re: How to properly launch the M3W [Re: Bluesman] #619631
29/02/20 03:45 AM
29/02/20 03:45 AM
Joined: Oct 2013
Posts: 89
Massachusetts & New Hampshire ...
Bluesman Offline OP
Just Getting Started
Bluesman  Offline OP
Just Getting Started

Joined: Oct 2013
Posts: 89
Massachusetts & New Hampshire ...
So the clutch is pretty robust?


2019 M3W Black
Previous: 1985 Plus 8
Re: How to properly launch the M3W [Re: Bluesman] #619633
29/02/20 04:06 AM
29/02/20 04:06 AM
Joined: Feb 2019
Posts: 1,830
West of Seattle, USA
LightSpeed Offline
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LightSpeed  Offline
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Joined: Feb 2019
Posts: 1,830
West of Seattle, USA
It is not like any other clutch I have used. I learned to drive on a new MGA Coupe, had a Sprite, a TR4a IRS, a one ton truck with compound low, a 1939 Caterpillar dozer, several VWs and none of them had clutches like this thing.


Stephen
2019 M3W

Re: How to properly launch the M3W [Re: Bluesman] #619660
29/02/20 09:01 AM
29/02/20 09:01 AM
Joined: Apr 2019
Posts: 173
Hertfordshire
O
Obie Offline
L - Learner Plates On
Obie  Offline
L - Learner Plates On
O

Joined: Apr 2019
Posts: 173
Hertfordshire
What you say about not luging the motor is correct, be gentle on the throttle until above 2500rpm.
I find the M3W is actually very easy to drive, being so light with plenty of power it’s easy to make a quick getaway at say a roundabout and leave most cars behind without much trouble and the gear change is wonderful.
Get the clutch out quickly and don’t slip it too much is the way to go.
It’s a bit more difficult to get it right when going for a maximum speed launch.

Last edited by Obie; 29/02/20 09:26 AM.
Re: How to properly launch the M3W [Re: Bluesman] #619926
01/03/20 07:15 PM
01/03/20 07:15 PM
Joined: May 2012
Posts: 1,505
Gods own county! Oop north
D
Dab of oppo Offline
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Joined: May 2012
Posts: 1,505
Gods own county! Oop north
Mechanical sympathy is my watch word.

Your car will tell you when you have got it right, just a little experimentation is all that is required.

Re: How to properly launch the M3W [Re: Bluesman] #619934
01/03/20 07:45 PM
01/03/20 07:45 PM
Joined: Jun 2012
Posts: 1,260
United Kingdom, Lincolnshire
planenut Offline
Has a lot to Say!
planenut  Offline
Has a lot to Say!

Joined: Jun 2012
Posts: 1,260
United Kingdom, Lincolnshire

I think as Dab of Oppo says, mechanical sympathy is the thing to keep in mind. If you do get a bit heavy footed with things the back wheel will probably be the thing that limits the amount of power that can be put down by spinning up. I have just put my M3W back on the road after its winter lay up, that included fitting all the Bleazey mods to the Centa. I would say that the transmission now copes well with 2000 rpm in top, no shunting as there was before. I am most impressed with the improvements to the smoothness of the transmission but it still caught me out, after 7 years of driving M3W's, just how easy it is to loose traction with the back wheel, particularly on a slightly damp road. It was great to be back out in the M3W after 4 months, even in the cold.

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