Three Wheelers - Your opinions and expertise wanted!

Three Wheelers - Your opinions and expertise wanted!

Author
Discussion

Steffan

10,362 posts

163 months

Tuesday 1st March 2011
quotequote all
It is possible.

I know two Birmingham firms who can do it but there are difficulties with wind up and torque effects and excessive wear and breakages. But

I have seen it done, I have driven the cars, it does work.

mrmaggit

10,146 posts

183 months

Wednesday 2nd March 2011
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dmulally said:
Can somebody please explain in simple terms how having a car gearbox gets power transfered to the rear wheel?
Apparently the new Morgan has belt drive. Not sure how that works, I suspect one of the reasons that Grinnall went with the BMW engine & gearbox was the simplicity of bolting the entire drive-train in in one piece without having to faff about designing the final drive unit.

thescamper

920 posts

161 months

Wednesday 2nd March 2011
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dmulally said:
Can somebody please explain in simple terms how having a car gearbox gets power transfered to the rear wheel?
Two tried methods details below:

Shamelessly nicked from the Penguin Speedshop (Buckland) website.

Gearbox & Transmission:-Modified Escort. Propshaft modified Escort with metalastic rear coupling. Bevel Box purpose made housing C.W.P. (either 3.54:1 or 3.23:1) Final drive by chain and sprockets to rear wheel.

And also nicked but from the Ellipse website.

Rear Suspension starts with a Planet mono arm mounted to the chassis with 50mm adjustable taper roller bearings. Double row prop-shaft support bearings and internal drive to a BMW R90 bevel box drive with 200mm hydraulic drum brake. Hung on coil-over special-build Hagon single shock with adjustable pre-load and damping

Gearbox is a fully re-conditioned as new Ford Type 9 5-speed box.

Engine, gearbox and exhausts will all be fully rubber-mounted.

Propshaft is specially made for the vehicle. 30mm diameter with removable plunging CV-joints, giving 20mm plunge each end. Fully enclosed in transmission tunnel.







Sam_68

9,939 posts

180 months

Wednesday 2nd March 2011
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dmulally said:
Can somebody please explain in simple terms how having a car gearbox gets power transferred to the rear wheel?
If we're talking longitudinal engine/gearbox to a driven rear wheel, the two commonest and most obvious ways are:
  • via a shaft drive/swing arm assembly from a shaft driven bike (Triking and JZR use this approach)
  • via a bevel box mounted just in front of the rear wheel that takes the shaft drive and turns it through 90 degrees, with a sprocket/pulley on the output shaft that then drives the rear wheel via a belt or chain (the Buckland used/uses this approach, as did the original Morgan, though in the Morgan's case the bevel box was a 'transaxle' that incorporated the gearbox as well):


The former is most convenient, particularly if you are using a shaft driven bike as a donor, but limits rear suspension geometry and rear wheel width and the torque capacity of the shaft drive assembly can be a limitation with car engines.

The latter is more expensive (requiring more 'bespoke' engineering) and generally results in a longer wheelbase (witness the Buckland!), but gives greater design flexibility.

ETA: Like wot thescamper said, above, basically... my typing is too slow!


fuoriserie

4,554 posts

204 months

Wednesday 2nd March 2011
quotequote all
An interesting three wheeler from the past, the Trihawk

http://www.designmassif.com/trihawk/trihawk_histor...
Advertisement

slomax

4,300 posts

127 months

Wednesday 2nd March 2011
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You guys might be interested in looking at this site too.

http://www.threewheelfactory.com

looks like some interesting projects. One is clearly just a copy of a T-Rex, but the others are new to me.

vx220

2,393 posts

169 months

Wednesday 2nd March 2011
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fuoriserie said:
An interesting three wheeler from the past, the Trihawk

http://www.designmassif.com/trihawk/trihawk_histor...
scroll down a little on this link and see the three-wheeled 2cv!

if someone held a gun to my head and said i had to drive a 2cv, it would be this one

dmulally

4,582 posts

115 months

Wednesday 2nd March 2011
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Thanks gents.

I can shirley see the merits of the BMW K100 setup there!

Brisvegas

140 posts

94 months

Friday 4th March 2011
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vx220 said:
scroll down a little on this link and see the three-wheeled 2cv!

if someone held a gun to my head and said i had to drive a 2cv, it would be this one
I've got a 2CV 3 wheeler. Picked it up last year at an auction during the Pebble Beach Concours. Looks nothing like the one in the link you gave. It's looks virtually same as the new 3 wheel Morgan. Can't wait to take it for a spin once it's back from getting modified to meet Australian reg's.

fuoriserie

4,554 posts

204 months

Friday 4th March 2011
quotequote all
http://www.japrestwich.com/

If someone wanted a new J.A.P engine for their project ....smile

and the nice looking Ellipse:

http://www.planetltd.com/

fuoriserie

4,554 posts

204 months

Thursday 10th March 2011
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http://www.sidecar-news.de/gn---catalogues/threewh...
A website with some interesting three wheelers

fuoriserie

4,554 posts

204 months

Thursday 10th March 2011
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fuoriserie

4,554 posts

204 months

Thursday 10th March 2011
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http://www.g2cycles.com./specifications_eng.html
The G2 inspired by the T-Rex Campagna

fuoriserie

4,554 posts

204 months

Thursday 10th March 2011
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mikeveal

3,228 posts

185 months

Friday 11th March 2011
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I have a Malone Skunk. They're now calling it an F1000.
The sub 300Kg Skunk was based on a 900cc Fazer. It's spaceframe was made with tubing a couple of guages lighter than the production skunks. It was also clad in Dural rather than aluminium.
My car is currently tipping the scales at around 350Kg, with a 2003 Yamaha R1.

If you are considering driving, building or buying a trike, of any sort (1F2R can corner as well as 2F1R, it's just harder to get right) you really need to read and understand this document.
http://www.rqriley.com/3-wheel.htm

Finally, I don't know if anyone has responded to your question about IVA. Trikes under 450Kg are tested under the MSVA scheme - not as stringent as SVA or IVA.

dave de roxby

Original Poster:

540 posts

130 months

Friday 11th March 2011
quotequote all
mikeveal said:
I have a Malone Skunk. They're now calling it an F1000.
The sub 300Kg Skunk was based on a 900cc Fazer. It's spaceframe was made with tubing a couple of guages lighter than the production skunks. It was also clad in Dural rather than aluminium.
My car is currently tipping the scales at around 350Kg, with a 2003 Yamaha R1.

If you are considering driving, building or buying a trike, of any sort (1F2R can corner as well as 2F1R, it's just harder to get right) you really need to read and understand this document.
http://www.rqriley.com/3-wheel.htm

Finally, I don't know if anyone has responded to your question about IVA. Trikes under 450Kg are tested under the MSVA scheme - not as stringent as SVA or IVA.
Thanks for this Mike - all good stuff. Your Skunk sounds awsome!

And thanks Italo for your links - the Venom inspires me most. Must admit, I'm looking at bike donors again.

Edited by dave de roxby on Friday 11th March 19:10

slomax

4,300 posts

127 months

Friday 11th March 2011
quotequote all
mikeveal said:
I have a Malone Skunk. They're now calling it an F1000.
The sub 300Kg Skunk was based on a 900cc Fazer. It's spaceframe was made with tubing a couple of guages lighter than the production skunks. It was also clad in Dural rather than aluminium.
My car is currently tipping the scales at around 350Kg, with a 2003 Yamaha R1.

If you are considering driving, building or buying a trike, of any sort (1F2R can corner as well as 2F1R, it's just harder to get right) you really need to read and understand this document.
http://www.rqriley.com/3-wheel.htm

Finally, I don't know if anyone has responded to your question about IVA. Trikes under 450Kg are tested under the MSVA scheme - not as stringent as SVA or IVA.
Mike- I have said it before and i will say it again. I want your car.

Also, i haven't had a proper close up look at a Malone yet. I presume they are front engined? there doesnt look enough room in the back, thats all. If so, is it shaft and final drive as per a BMW/guzzi set up?

fuoriserie

4,554 posts

204 months

Saturday 12th March 2011
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slomax said:
If so, is it shaft and final drive as per a BMW/guzzi set up?
It's a chain drive.

http://www.malonecar.eclipse.co.uk/Performance2.ht...

Edited by fuoriserie on Saturday 12th March 08:00

mrmaggit

10,146 posts

183 months

Sunday 13th March 2011
quotequote all
fuoriserie said:
slomax said:
If so, is it shaft and final drive as per a BMW/guzzi set up?
It's a chain drive.

http://www.malonecar.eclipse.co.uk/Performance2.ht...

Edited by fuoriserie on Saturday 12th March 08:00
The link doesn't work for me, Italo. That Venom is brilliant! Just needs some watertight gull-wing doors and a windscreen wiper and I'm there. In fact I think I'll go and have a blast in the Scorpion just to get myself in the mood!

See you all later.

slomax

4,300 posts

127 months

Friday 18th March 2011
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I didn't exactly know where to put this video. I knew some of you would be interested in it, but didn't think it was worth a new thread.

Anyway- a Lomax build from start to finish.

http://m.youtube.com/#/watch?desktop_uri=http%3A%2...

note- it looks brake connections at the master cylinder are the wrong way round.