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SORN
by OldSkrote - 31/07/25 02:07 PM
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Aug 24th, 2023
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Joined: Nov 2015
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The press release for the new Super 3 mentions " the bevel box has been re-engineeered using a custom tooth profile."
I presume this has been done to solve the noise of the ones fitted to the old three wheeler & if so wonder if it would it be possible to fit one to replace the screamer in my 2015 M3W.
Comments please.
Ken Jones
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Talk Morgan Enthusiast
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The bevel box in the Super 3 was said at the launch to be interchangeable with the Quaife version. It certainly looked the same externally with the same mounting points.
2021 M3W
2013 M3W - Sold
1971 4/4 2 Seater
1934 Sports
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Talk Morgan Guru
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I was just weighing up the BB drive ratio. I suppose the extra revs and power available from Ford engine would align nicely with the higher quoted top speed, given same gearbox and drive ratio. Note sure of Super 3 rear tyre circumference though.
Richard
2018 Roadster 3.7
1966 Land Rover S2a 88
2024 Royal Enfield Guerrilla 450
1945 Guzzi Airone
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Joined: May 2011
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I was just weighing up the BB drive ratio. I suppose the extra revs and power available from Ford engine would align nicely with the higher quoted top speed, given same gearbox and drive ratio. Note sure of Super 3 rear tyre circumference though. Rear tyre is 195/65/15
2021 M3W
2013 M3W - Sold
1971 4/4 2 Seater
1934 Sports
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Joined: Feb 2016
Posts: 7,949 Likes: 221
Talk Morgan Guru
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Talk Morgan Guru
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Thanks Rog. So 4% larger circumference. Close enough I suppose and making the Super 3 suitably long-legged with same BB ratio.
Richard
2018 Roadster 3.7
1966 Land Rover S2a 88
2024 Royal Enfield Guerrilla 450
1945 Guzzi Airone
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Joined: Oct 2007
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Learner Plates Off!
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Learner Plates Off!
Joined: Oct 2007
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Thanks Rog. So 4% larger circumference. Close enough I suppose and making the Super 3 suitably long-legged with same BB ratio. Assumes the drive pulley on the rear wheel is the same size as the M3W
Lance
1981 Plus 8
2016 Three Wheeler
2022 Corvette Stingray Convertible z51
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Just Getting Started
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Just Getting Started
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I'd think the biggest question mark is the new transmission ratios.
Noah
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Joined: May 2021
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A bit of thread resurrection.
My 2017 car has a real screamer and I want to do something about it. Have investigated a few options but not much out there.
Is there any more information available about retro fitting a new bevel box from a Super3?
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Joined: May 2011
Posts: 1,613 Likes: 22
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A bit of thread resurrection.
My 2017 car has a real screamer and I want to do something about it. Have investigated a few options but not much out there.
Is there any more information available about retro fitting a new bevel box from a Super3? Billy Bellinger has a solution for reworking the bevel box, which quietens it. https://jb-engineering.co.uk/?page_id=65Vm
2021 M3W
2013 M3W - Sold
1971 4/4 2 Seater
1934 Sports
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Joined: May 2021
Posts: 18
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Thank you
That is a good steer. I will check that out.
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