aitch
|
| posted on 7/12/09 at 04:49 PM |
|
|
reverse chain drive
been searching for about an hour now and found nothing specific s thought id take a risk and ask
what have people done about reverse gear with chain drive BEC
i really looking for the most cost effective solution
thanks
aitch
|
|
|
|
|
nick205
|
| posted on 7/12/09 at 04:54 PM |
|
|
Not really considered it before, but I'd guess you'd be looking at something like a starter motor mounted on the diff carrier and driving
a 2nd chain/sprocket on the crownwheel...?
Might be worth speaking to Martin Keenan @ MK Engineering to ask if he's done anything for the new MK Midi. Or maybe Syla with their R1ot?
|
|
|
zilspeed
|
| posted on 7/12/09 at 05:04 PM |
|
|
Or maybe Douglas at www.westgarage.co.uk seeing as this is one of his specialities.
|
|
|
russbost
|
| posted on 7/12/09 at 05:17 PM |
|
|
Here's mine for the Furore. Wouldn't really call it locost tho' it's the machining for the diff can & the reverse sprocket
& spacers that adds up!
[img]http://
 
Diff with reverse
[/img]
I no longer run Furore Products or Furore Cars Ltd, but would still highly recommend them for Acewell dashes, projector headlights, dominator
headlights, indicators, mirrors etc, best prices in the UK! Take a look at http://www.furoreproducts.co.uk/ or find more parts on Ebay, user names
furoreltd & furoreproducts, discounts available for LCB users.
Don't forget Stainless Steel Braided brake hoses, made to your exact requirements in any of around 16 colours.
http://shop.ebay.co.uk/furoreproducts/m.html?_dmd=1&_ipg=50&_sop=12&_rdc=1
|
NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
|
T66
|
| posted on 7/12/09 at 05:47 PM |
|
|
Almost certain Martin Keenan does a complete reverse setup...
Cannot recall how much though.
Been looking about myself and not found a great deal.
|
|
|
Jon Ison
|
| posted on 7/12/09 at 06:14 PM |
|
|
How often do you think you will need reverse ?
The only time I have bothered is on race cars that have required one to get through scrutineering, ah IVA now requires reverse ?
I did a locost version on the GT1 chain driven, 12v golf cart motor, same pitch chain as drive train fixed to sprocket on cart motor, all fitted on a
pivot and pulled into mesh with a 2nd hand brake lever and cable, satisfied MSA scrutineers.
|
|
|
aitch
|
| posted on 7/12/09 at 06:37 PM |
|
|
looks like it will end up a starter motor, has to be the cheapest option then just try and avoid reverse 
aitch
|
|
|
minitici
|
| posted on 7/12/09 at 07:30 PM |
|
|
Best one I have seen is the Lynx AE unit which drives a cog on the gearbox output.
I think the Motaleria used one
http://www.lynxae.co.uk/Products-Bikesports.htm
Have a look at nitram38 photo archive, he has some pictures
 
Description
[Edited on 7/12/09 by minitici]
|
|
|
madrallysport
|
| posted on 7/12/09 at 07:56 PM |
|
|
Quaife do a unit very very strong, but not cheap Quaife chain
forward / reverse drive unit
UNDERSTEER is when you hit the wall with the front of the car.
OVERSTEER is when you hit the wall with the rear of the car.
HORSEPOWER is how fast you hit the wall.
TORQUE is how far you take the wall with you.
|
|
|
aitch
|
| posted on 7/12/09 at 08:10 PM |
|
|
wow just spent ages going through nitram38 projectx pics,
the reverse is a little more elegant driving a gear attached to the output shaft of the gearbox along side the chain sprocket
all in all an inspiratio to look through his pics, a shame he doesnt have a web site,,, im guessing he doesnt have the time
aitch
|
|
|
