Could you put a V-twin in a tiny car? - Hot Rod Forum : Hotrodders Bulletin Board
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Old 05-12-2007, 06:37 AM
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Could you put a V-twin in a tiny car?

Just out of curiosity- I was wondering if it would be possible to drop a V-twin, like a large ci Harley engine or something, into a micro-car; Like a morris minor, or a mini. Obviously it would take some alterations.

Anybody have any input on that idea??

It would have to be a HP/TQ increase- a 96ci Harley has probably double the torque & horsepower of some of those little British 4 bangers.

Anywho- just daydreamin

Nooj

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Old 05-12-2007, 07:14 AM
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I just read a really long thread on a "traditional hot rod" website last night. A lot of gearheads are really starting to come up with ideas lately due to gas prices. There were more ideas and pics than I've seen so far. Don't know if it is OK to link to a different site, so I won't.
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Old 05-12-2007, 07:43 AM
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F&J- you can link whereever you want, as long as it isn't porn.

Corbin tried with a v twin, but it didn't fly. Maybe it was the lack of 1 wheel, (would have made it a 4 wheeler, but then kept it from being considered a motorcycle), or too slow, or maybe it was just too weird.

The host site won't let me imbed the pics. Check the link below.

http://matt_birchard.tripod.com/cars/merlin.htm

I would not use any v twin motor in a car , it only has novelty value as a means of propulsion. Maybe if you glued 2 or 3 v twin motors together, it would be a fun car.
( yes I have a Harley)

I remember a guy who used to put 1100cc motorcycle motors in the back of the old mini coopers.

He had built about 3, those things were fun, (or so he said)
Later, mikey
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Old 05-12-2007, 08:07 AM
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Aren't Legends Cars powered by V-Twins?
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Old 05-12-2007, 08:22 AM
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Quote:
Originally Posted by MAUSS
Aren't Legends Cars powered by V-Twins?
All of the legends cars I've seen have inline 4 cylinders.

Mikey
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Old 05-12-2007, 09:33 AM
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Old 05-12-2007, 11:28 PM
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I don't know about the V-Twin but there was a thread on one of the bike forum in the UK where two guys put a Hayabusa---'Busa 1300 from a Suzuki into a old Mini Cooper. It was in the back seat and drove some kind of rear end or maybe it was a sand rail type rear end.

Anyway it was very fast. They had a video cam mounted in it and took it around a town smoking the tires at will. These motors make aboout 160 hp stock and can be upped to over 200 just by looking at them cross eyed. If you are totally obsessed with power they can be had with a turbo that makes the bike a 200+ mph street machine!!!
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Old 05-13-2007, 06:51 AM
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Here is something I found,


http://thekneeslider.com/archives/20...ered-roadster/

Found it on this page with a whole bunch of other motorcycle powered cars..
http://thekneeslider.com/motorcycle-powered-cars/

Some fast looking stuff there.
Later, mikey
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Old 05-13-2007, 08:45 AM
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This image has stoked me up:
It was a UK produced kit using a Moto Guzzi engine. Some were powered by Honda CX or GL 500 and 650. I have a harebrained plan to build one with something like Suzi or Kaw 1500 watercooled V twin but hiding the engine under the hood with shaft drive rear from the same donor bike.
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Old 05-13-2007, 07:15 PM
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BMW Isatta ring a bell? they used 250cc?? BMW motorcycle engines, so this idea.
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Old 05-13-2007, 11:14 PM
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I know the early 70's hondas has 2 cyl. engines in them. I dont remember what size they were.
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Old 05-13-2007, 11:36 PM
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Interesting thread.For fuel mileage the guys with Lt-1,s and LS-1,s seem to do pretty well and still have a lot of power.
Honda car engines have come along way also.Some of these times are impressive.


http://www.honda-tech.com/zerothread/1814936



I think you are talking about traditional cars.But I think for fuel mileage and performance the modern engines are hard to beat.
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Old 05-13-2007, 11:40 PM
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I've always thought that a bike engine in a lightweight chassis like a T roadster would be a fun cool gas saver. I've even thought about using components from a quad since they have shaft drive and rear suspension that are strong, yet light weight.

Last edited by roddinron; 05-14-2007 at 10:29 AM.
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Old 05-14-2007, 07:26 AM
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Quote:
Originally Posted by roddinron
160 250, 305, 350, 450,
Those engine sizes are honda motorcycle engine sizes.

I thought that the early Hondas were 600 cc and the smaller one that was distributed abroad could have a 360.

http://www.honda600coupe.com/Honda_6...n_gallery.html

Later, mikey
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Old 05-14-2007, 09:46 AM
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To diviate a bit. We just took the sand buggy for a spin on some off road trails in Minn. We got 107 mph on a bumpy gravel road and 90 mph side by side with the dirt bike. The 450 dirt bike is really fast when ridden hard. The sand buggy can pull away very hard however. We couldn't go much faster as the bugs were out in force and we quickly got cover with things. yuk.

There is so much power that it just over powers the tires at speed. After about 100 the tires start slipping so we reall need some sticker tires. Because they are pretty soft they grow a bit at least the front one do. All I could see. haha

Some of the dips and bumps are about 3 feet high so the suspension is really working.

We designed and built this completely except for outside machine work we didn't have equip. to use.
specs:
chrome moly chassis with complete cage CAD designed, stress analysis done on high load parts, and weight reduction on others.
4 wheel independent a-arm suspension
20" travel
total adjustable coil over shocks
5 point seat belts.
Our own design intermediate transmission and rear end.
our own design rear hubs and stub axels.
954 Honda with 6 spd and fuel injection 140 hp appx.
geared for 115 at 11,500 rpm
curb weight with 250# driver 800#
stock instrument module with electronic speedometer correction.
Lots more.

To return to the car with a bike motor,
It's possible to do a bike motor car but the biggest single problem is the lack reverse. It's dificult and very expensive to make a light weight bullet proof reverse. But we have one on Cad that we will have out pretty soon. You might be able to use a 3 spd manual trans and drive it with the chain but they are big, heavy and clumpy and require a shifter with a good lock out.
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