Could you put a V-twin in a tiny car? - Page 3 - Hot Rod Forum : Hotrodders Bulletin Board
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  #31 (permalink)  
Old 05-16-2007, 11:16 AM
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I don't see why not, I recently saw a picture of a chopper with a Pratt & Whitney R1830 radial aircraft engine in it. I also saw (in person) a professional go cart with a 900 Kawasaki engine in the back, it was insanely fast.

Vince

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  #32 (permalink)  
Old 05-16-2007, 11:49 AM
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I saw that too. Money can do anything....even be wasted. haha. I wish they would pass some my way. I'd like a chanch to waste some.!! Except for the gokart.

As I noted earlier, this sand rail/buggy we have is just insanely fast. Like the go kart. I've seen video of similar. I don't have any clock numbers but a 450 Honda dirt bike is no match at all drag racing or rat racing down logging roads. The dirt bike was flatout at around 90 and I just waved and drove away. haha. 'till the bugs covered my face and glasses. haha Another 2 weeks and we get June bugs. These are like 50 cals at 90 mph. I'll need armor.haha

I'd say a balls out snowmobile might be a good run. My BIL has one that can go 100 on a smooth dirt cornfield. I think I can beat that.

About 5.25 pounds per hp. Maybe even better according to the bike shops.

The next one will have a 'Busa and about 200 hp so it will be in the 4.25 lbs/hp range.

Why isn't insane fast enough?? haha

I was told I should be using a walker and drive a Maroon Buick 4 dr instead of playing with the kids and their hotrods.

never grew up
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  #33 (permalink)  
Old 05-19-2007, 03:09 PM
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Does anyone know how they drive the engine/trans of the cycle engines in the Legend cars to the differential?
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  #34 (permalink)  
Old 05-19-2007, 10:02 PM
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Legends Car Drivetrain

I'm guessing that you haven't seen a "Legends" car in the flesh. These cars use a 1200cc Yamaha engine and it's gearbox to power these cars around the race track. When the engine is turned lenghtwise to the chassis, the gearbox output shaft is over to the right hand side of the car. Normally this engine would drive a shaft to the rear wheel differential on a bike or a chain to some bikes. In a "Legends Car" , the output shaft of the trans powers a driveshaft that runs down the righthand side of the car next to the driver's right leg. This shaft is in a closed housing next to the driver's leg. The driveshaft is coupled to a rear axle from an '78 to '88 RWD Toyota Corolla. They cut the right side tube off of the rear axle and weld the backing plate to the side of the diff. This moves the diff to the righthand side of the car and the driveshaft bolts dirrectly to the pinion gear. With the offset tube of the axle running to the left side of the car behind the driver's butt. This actually makes the car heavy on the right side which would be unwanted on the oval track, but that is how they are made! Go Figure? westfaliaguy.
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  #35 (permalink)  
Old 05-20-2007, 12:48 AM
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like i said before check out quaife and other that have in and out transaxles.

sorry for not keeping closer tabs on the thread but i have been at millers motorsports park all week in regards to soe serious road racing...
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  #36 (permalink)  
Old 05-25-2007, 04:58 PM
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Hey, I just remembered, my 1st car was a NSU Printz(?). From Germany, had a 2 cyl opposed engine. When new it got 50 MPG, by the time I got it it was getting about 35 MPG. Gutless wonder. Lived in NE Ohio, had to down shift every time I looked at a hill! I wish I still had it though. We should be able to do something similar with good MPG and decent power. Not like we are used to perhaps, but enough to not be a danger in traffic.
Well anyway I was remembering.....
Rooky
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  #37 (permalink)  
Old 10-17-2010, 11:33 AM
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Just found this thread.. hope its not too late!

Just to introduce myself...

I'm fitting a S&S 145ci engine in a Classic Mini and make RWD for my final year project of my automotive degree.

Bike engined minis are quite common round here in UK. In fact minis here are like legos... The amount of modifications they have been subjected to are quite impressive... From just normal supercharging of the original engine, to some quite radical, modified VTEC twin engined carbon fibre chassis minis...

Back in the days, the minis could keep up with the mustangs and similar cars at the touring cars championship, just because of their cornering performance... Beef it up with big torque and reasonable power from a V-Twin and what you get is quite serious...

The only problem round here is to get info and help, as most people want their mini to be unique, so they usually don't share that info easily...

I'll try to keep posted on my progress with my project...

Take care!!!
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  #38 (permalink)  
Old 10-17-2010, 02:50 PM
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there is a Harley powered Crosley station wagon. A 200-4r trans is hooked via belt to the Harley engine.

he was having problems with belt durability. I think he may have looked at a chain drive from engine to trans
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  #39 (permalink)  
Old 10-17-2010, 03:46 PM
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Quote:
Originally Posted by Crosley
there is a Harley powered Crosley station wagon. A 200-4r trans is hooked via belt to the Harley engine.

he was having problems with belt durability. I think he may have looked at a chain drive from engine to trans
It looks sweet!!!

Although I'm planning to build my own gearbox case, and use upgraded original components. There's not much space in a Mini engine bay as you imagine...

I still have to decide what differential I will use as what I usually found they are quite heavy, and I'm trying to keep the weight as low as possible...

Any recommendations!?
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  #40 (permalink)  
Old 10-17-2010, 03:58 PM
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These guys have diffs for motorcycle powered cars..

http://www.autotech.com/quaife/Motor...=cyclecars.htm

Give them a call..

Sam
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  #41 (permalink)  
Old 10-17-2010, 04:03 PM
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Quote:
Originally Posted by OneMoreTime
These guys have diffs for motorcycle powered cars..

http://www.autotech.com/quaife/Motor...=cyclecars.htm

Give them a call..

Sam
You've just become my god!!!

I will for sure give them a call!!!

Thanks man!
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  #42 (permalink)  
Old 10-18-2010, 02:54 PM
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The Morgan. They were even from your side of the pond. Classics to many.


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  #43 (permalink)  
Old 10-18-2010, 03:04 PM
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v-twin in tiny car

Quote:
Originally Posted by lumberjacknooj
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
One of the coolest things I have seen in a car build, is some guys in CA.. made 4 cars that are street legal with twin motorcycle motors in them, the cars, are bumper cars.
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  #44 (permalink)  
Old 10-18-2010, 03:35 PM
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Quote:
Originally Posted by 35terraplane
One of the coolest things I have seen in a car build, is some guys in CA.. made 4 cars that are street legal with twin motorcycle motors in them, the cars, are bumper cars.
Check 'em out....
(click here)
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  #45 (permalink)  
Old 10-18-2010, 04:05 PM
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v-twin in a tiny car

Quote:
Originally Posted by Joe G
Check 'em out....
(click here)
Now wouldn't they be fun at Back To The 50'S
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