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Power in KW of standard Starter Motor ?

Posted: Mon Nov 25, 2024 9:17 am
by Exminiman
A title, anyone know what the standard power is ?

Just trying to weigh up the benefit of changing to a new "high Power" version to speed up cranking - but need to know what a good standard one should produce.

All electrics test as ok, so just down to the SM

https://www.minispares.com/product/Clas ... o%20search.

Re: Power in KW of standard Starter Motor ?

Posted: Mon Nov 25, 2024 10:53 am
by InnoCooperExport
I can't answer the question but I can speak from experience. On the MGA we swapped the standard starter for a Wosp high torque and it does definitely crank faster and starts a lot better. Cold start is still a bit of challenge but it doesn't struggle to turn over like it used to...

Re: Power in KW of standard Starter Motor ?

Posted: Mon Nov 25, 2024 12:07 pm
by LuisM
I have two of these .. on a non-verto flywheel , and not only they can crank faster as well as for longer time without draining battery .

They are basically an Honda Civic starter , and if you have access to a machinist/lathe .. you can build one for a cheap amount .

https://www.minispares.com/product/Clas ... 2520search

Cheers
Luís

Re: Power in KW of standard Starter Motor ?

Posted: Mon Nov 25, 2024 9:26 pm
by timmy201
I’ve done a bit of searching and the Lucas M35 type starter is rated around 0.8kw which is equivalent to 1hp

Re: Power in KW of standard Starter Motor ?

Posted: Mon Nov 25, 2024 11:22 pm
by Exminiman
Thanks for feed back and info, much appreciated.

Running a standard starter motor on a high compression engine and they just sound slow and strained…this one is pretty new as well…

0.8KW for an OEM one back in the day, so a reliable 1KW or even 1.6KW,(its a bit dear though ) could be worth while.

https://www.minispares.com/product/Clas ... o%20search

Re: Power in KW of standard Starter Motor ?

Posted: Mon Nov 25, 2024 11:29 pm
by Polarsilver
" Ran out of Petrol ".. what to do as blocking the road ( bad bend on a hill ) unable to push the car with a Dead Engine & no other to help Push ...Solution stick it in 2nd Gear then Ride the Clutch while you turn the engine over with the Starter Motor .. the Car will move a good distance just using the standard Lucas Starter Motor in 100% Electric Drive ..has worked for me on more than one past occasion without any long term consequence :oops:

Re: Power in KW of standard Starter Motor ?

Posted: Mon Nov 25, 2024 11:34 pm
by Exminiman
Polarsilver wrote: Mon Nov 25, 2024 11:29 pm " Ran out of Petrol ".. what to do as blocking the road ( bad bend on a hill ) unable to push the car with a Dead Engine & no other to help Push ...Solution stick it in 2nd Gear then Ride the Clutch while you turn the engine over with the Starter Motor .. the Car will move a good distance just using the standard Lucas Starter Motor in 100% Electric Drive ..has worked for me on more than one past occasion without any long term consequence :oops:
Thats an EV of sorts isn’t it ? :lol: :lol:

Re: Power in KW of standard Starter Motor ?

Posted: Tue Nov 26, 2024 5:48 am
by Tim
Thats the old "breakdown on a level-crossing" question from the driving test. I suppose modern kids in their automatics would be splattered across the front of the train...

Tim

Re: Power in KW of standard Starter Motor ?

Posted: Wed Nov 27, 2024 10:36 am
by Exminiman
Exminiman wrote: Mon Nov 25, 2024 11:22 pm Thanks for feed back and info, much appreciated.

Running a standard starter motor on a high compression engine and they just sound slow and strained…this one is pretty new as well…

0.8KW for an OEM one back in the day, so a reliable 1KW or even 1.6KW,(its a bit dear though ) could be worth while.

https://www.minispares.com/product/Clas ... o%20search
Bit the bullet (and fed up with dicking about with old starter motors..) and ordered the 1.6KW starter motor(£25 quid off at the moment)

Big Cheer for Minispares it arrived in 20 hours, so will fit later :D

EDIT: massive difference so far, lighter, easy to fit, engine spins over much faster, lets hope it continues :D

also noticed, looks like you can actually ditch the solenoid if you want to and connect the ignition starter wire straight to the starter motor rather than the solenoid.