I just bought an older Amod car that is powered by a bike engine. Soon I will be doing a motor swap and liked your custom gearbox. Reverse would be nice to have. I am a machinist so making it wouldn't be a problem. I was wondering if there was any plans for that box or did you make it as you went. If there were plans could I buy a set. Any help would be nice. Thanks Chad
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Sept. 19, 2009 4:01 p.m. thewelder New Reader
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Sept. 20, 2009 9:29 a.m. 44Dwarf HalfDork
A company called Jaxport used to sell a reverser box for bike motors. It bolted to the drive shaft adapter used on dwarf car.
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Sept. 20, 2009 9:38 a.m. Per Schroeder Technical Editor/Advertising Director
Yea, the reversing set up on the Berkeley wound up being problematic (think fragged) and we wound up doing away with reverse.
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Sept. 20, 2009 2:43 p.m. problemaddict Reader
I've seen a few reverser boxes, but they are never cheap:
@$800 http://www.demon-tweeks.co.uk/products/ProductDetail.asp?cls=MSPORT&pcode=Q/EQ...
@$3500 http://www.jeffcotransmissions.com/jeffco_revdiff2.htm
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Sept. 20, 2009 6:33 p.m. confuZion3 SuperDork
Could you use a BMW or Harley Davidson transmission? These can be frequently found with reverse already installed since they sometimes attach to very large motorcycles that require reverse to be practical.
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Sept. 20, 2009 6:42 p.m. Gonzo_Bmod New Reader
Gloria MC powered formula race cars use a separate gear and a very small starter motor on the rear housing as a push button electric reverse.
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Sept. 20, 2009 7:02 p.m. mistanfo Dork
The Goldwing reverse was electric, the last time I checked (could certainly be different now).
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Sept. 20, 2009 7:08 p.m. thewelder New Reader
In reply to Per Schroeder:
Do you have any plans for the gear box. I don't need reverse(it would be nice on hill climbs thou). I liked the design and packaging of it and I think I could use it as a base anyways. Chad
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Sept. 20, 2009 7:44 p.m. Per Schroeder Technical Editor/Advertising Director
I'll see if Denny has plans, I think it was mostly just done in a notebook. Like a notebook that you use a 'pencil' on.
The real reason for that box was to reverse the rotation of the engine so a motorcycle engine could be used in a FWD car. Not very helpful (or wanted) for a rwd car.
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Sept. 21, 2009 5:53 p.m. thewelder New Reader
In reply to Per Schroeder:
Like I said it was about the packaging. I have a big chain and sprocket going back to a diff with the axles coming off that. With your set-up I could move my engine back even farther to get more weight on the rears. It would also help with the diffuser. Chad
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Sept. 23, 2009 8:46 p.m. thewelder New Reader
In reply to Per Schroeder:
Hey Per. If you find anything out send it to chad.summey@yahoo.com. Thank And I will pay for the drawing. Chad
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Sept. 24, 2009 6:48 a.m. 44Dwarf HalfDork
I've seen in the past B&S ring gears attached to the output shaft and electric starter to turn them for rev. Chaep yes...pain in the ass to set up YES...adding flywheel effect on race car...bad
44
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Oct. 18, 2009 8:24 p.m. thewelder New Reader
In reply to thewelder:
Per did you find out anything yet. Chad
