Learning how to build Lotus Seven replicas...together!
It is currently July 9, 2020, 3:43 am

All times are UTC - 5 hours [ DST ]

Post new topic Reply to topic  [ 2 posts ] 
Author Message
PostPosted: May 3, 2016, 3:52 am 
User avatar

Joined: November 11, 2013, 4:47 am
Posts: 1244
Location: No. Nevada
Been thinking about my intended BEC build.
FJR1300 runs "Backward" so a little more thought is called for.
I'm just old enough to have experience with a lot of cars that are no longer common but for which parts are not too hard to find.

Corvair trans is kind of unique in that you can drive it "Correctly" from either end depending on how you do the input shaft.
I used to have a link that explained it well.
As I recall, from the rear the original input passes through the entire diff to the front then to the pinion.
From the front (mid engine) you just use a short coupler instead.
Downside is limited R&P ratio availability, a bit heavy, and U-joint axles as factory.

FIAT trans are pretty light and I expect they are able to handle most bike engines torque.
Fiat made them for normal and reverse rotation engines, so choosing the right unit works mid or rear engine with the diff turning the right direction.

Renault/Lotus trans in 4 and 5 speed variants.
Another light and compact option if you are not running too much torque.
I had a Fuego 5 speed I should have kept, gave it to the guy who bought my Europa, another foolish sale that made sense at the time.

Since these were all used in cars to begin with I think they should work well in light mid or rear engine BEC's.
Some may be able to have unneeded gears removed for further weight savings.
Fiat and Renault also have fairly narrow track if using the original axles.

I know VW bug is the default transaxle and the R&P can be flipped but I am not very fond of them.

Not really pushing these alternatives hard but "In theory it could work". :wink:

If I must be a one-man PC free zone, so be it!

Reply with quote  
PostPosted: May 4, 2016, 9:24 am 
User avatar

Joined: April 19, 2016, 1:03 pm
Posts: 52
Location: Falls Church, VA
They all seem to be more interesting than a sharp stick in your eye. :cheers:

ImageEngineer: noun en·gi·neer \ˌen-jə-ˈnir\ - Someone who does precision guesswork based on unreliable data provided by those of questionable knowledge. (See also: wizard, magician, sorcerer, witch, miracle worker)

Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 2 posts ] 

All times are UTC - 5 hours [ DST ]

Who is online

Users browsing this forum: No registered users and 3 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to: