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View Full Version : Electronic Semi Auto Gear shifting in a Motorbike Engined Car


Luke2842
7th December 2009, 07:27 PM
Hi all,

This is my first post so bear with me!!! I'm still in the planning stages of my build, just finishing off the "Build your own off road buggy" project. So i think i've got a few things sorted in my mind and definatly (I think) want to go down the bike engine route. So I was just wondering if anyone has got any info on electronic shifting systems. Obviously bike engines are already semi automatic but i'm trying to find a kit that will automatically disengage the clutch electronically and change gear, therefore doing away with me operating clutch pedal. I don't even know if such a kit exists but thought i better ask the question.

Hope someone can help, Luke.

3GE Components
7th December 2009, 07:32 PM
Hi Luke,

There's a lot of information about shifters in the BEC pages of locostbuilders

http://www.locostbuilders.co.uk/forumdisplay.php?fid=23

between the two sites, there's no questions that can't be answered.

Kind regards

John

fabbyglass
7th December 2009, 07:38 PM
Well right or wrong I never used the clutch going up the box but then it was an LC headbangers bike anyway....:D

HandyAndy
7th December 2009, 07:43 PM
Well right or wrong I never used the clutch going up the box but then it was an LC headbangers bike anyway....

its perfectly acceptable to not use the clutch on upshifting on a bike engine, if you blip the throttle at the same time its kinder to the gearbox ;)
unless like i had on my race bikes you had a "quickshifter" :D this allowed me to keep the throttle on the stop even when changing up :cool:
this was worth a few yards per lap :D

"Quickshifters" are not cheap tho, between £300 to £500 per kit.

cheers
andy

mr-p
7th December 2009, 08:23 PM
Luke,

This system looks the mutt's, not cheap tho..

http://www.translogicuk.com/quickshifters.htm

p.

HandyAndy
7th December 2009, 08:28 PM
yup, thats what we used on our bikes. good stuff too

andy

gingea1pom
7th December 2009, 08:48 PM
If you are going that far get one of
these (http://wapedia.mobi/en/Slipper_clutch). They take a little getting used to but are the way forward.

IMHO

Cheers Ginge

slimtater
7th December 2009, 08:51 PM
It may be worth seeing if you can drive a BEC first to see if you still think you do/don't need one. It may turn out to be a lot of expense for little gain if you only plan on using it on the road (IMHO)

AshG
8th December 2009, 01:05 AM
if you buy this months complete kitcar magazine there is a big fat section in the middle about bike engines. think there is going to be a second part to it at some point too.

flyerncle
8th December 2009, 06:13 PM
Much less goes wrong with a cable.

Luke2842
8th December 2009, 08:27 PM
Thanks Ash, been out and brought the Complete Kit Car magazine. Its definitly worth getting loads of info, found a really good website www.flatshifter.com. They seem to solve all of the various problems.