Go Back   EcoModder Forum > EcoModding > Fossil Fuel Free
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 08-16-2010, 07:34 AM   #31 (permalink)
Master EcoModder
 
euromodder's Avatar
 
Join Date: Jul 2010
Location: Belgium
Posts: 4,683

The SCUD - '15 Fiat Scudo L2
Thanks: 178
Thanked 652 Times in 516 Posts
Quote:
Originally Posted by jackbauer View Post
Not sure i understand why a smaller drive sprocket would cause the chain to hit the arm.
With less teeth the sprocket diameter gets smaller, so the chain tapers more toward the front, and the gap that the swingarm sits in gets narrower.

Quote:
Anyway I have an option on a 50t driven sprocket so i could use a 14t drive to get almost the same 3.58:1 ratio which is only one tooth less than stock
If that's the sort of ratio you want, I'd use the larger sprockets.

__________________
Strayed to the Dark Diesel Side

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 08-16-2010, 10:06 AM   #32 (permalink)
Out of my mind, back in 5
 
Join Date: Nov 2009
Location: Malmoe, SWEDEN
Posts: 124
Thanks: 1
Thanked 7 Times in 6 Posts
Quote:
Originally Posted by euromodder View Post
Torque maybe ?
Having a gearbox means having a clutch, so the clutch must be capable of handling the high torque of the electric motor(s).
Well, yeah if you look at a modern 600 sportbike gearbox... But take a look at the gearboxes I mentioned from slightly older bikes, all with lower peakk hp and higher overall torque... And all of them designed by the same guy that designed the gearbox on the Queen Mary... The numbers say it would work...
__________________
  Reply With Quote
Old 08-16-2010, 10:09 AM   #33 (permalink)
Out of my mind, back in 5
 
Join Date: Nov 2009
Location: Malmoe, SWEDEN
Posts: 124
Thanks: 1
Thanked 7 Times in 6 Posts
Quote:
Originally Posted by euromodder View Post
With less teeth the sprocket diameter gets smaller, so the chain tapers more toward the front, and the gap that the swingarm sits in gets narrower.


If that's the sort of ratio you want, I'd use the larger sprockets.
Also, if you reduce the front sprocket, you increase wear on the chain...

Tighter bend, higher torque load on a smaller area/less links... And more overlap on the teeth count over the rotation... Go with the 14 front...
__________________
  Reply With Quote
Old 08-17-2010, 04:49 PM   #34 (permalink)
Master EcoModder
 
jackbauer's Avatar
 
Join Date: Sep 2009
Location: Ireland
Posts: 734
Thanks: 26
Thanked 304 Times in 171 Posts
Ok need a little bit of advice regards chain joining. Seems they two ways are rivet and spring link. Looking on the web everyone seems to have a different opinion so my question would be is it ok to use a spring link in this application?
__________________
Now, Cole, when you shift the gear and that little needle on the ammeter goes into the red and reads 2000 Amps, that's bad.
www.evbmw.com
  Reply With Quote
Old 08-17-2010, 04:54 PM   #35 (permalink)
Master EcoModder
 
Join Date: Apr 2009
Location: Charlton MA, USA
Posts: 463

EVVette - '71 Chevy Corvette Coupe
Thanks: 31
Thanked 183 Times in 94 Posts
Jack,

You can get a master link for a 530 chain.

RK 530 X-RING Chain Master Link | Rocky Mountain ATV/MC

That way if you need to remove links, you just take a few off and rejoin the ends with the master link.

Cheep too!

-Adam
__________________
www.EVVette.com - 1971 Corvette Coupe Conversion to all Electric!
www.AdamBrunette.com - Machining, CNC, Robotics and Electronics.

You can download RTD Explorer for the Cougar controllers at www.EVVette.com
  Reply With Quote
Old 08-17-2010, 07:36 PM   #36 (permalink)
Out of my mind, back in 5
 
Join Date: Nov 2009
Location: Malmoe, SWEDEN
Posts: 124
Thanks: 1
Thanked 7 Times in 6 Posts
Quote:
Originally Posted by jackbauer View Post
Ok need a little bit of advice regards chain joining. Seems they two ways are rivet and spring link. Looking on the web everyone seems to have a different opinion so my question would be is it ok to use a spring link in this application?
Well... There is a reason for that... They are both good, but for widely different purposes... Some overlap, some don't...

A clip link is good based on the fact that it's removable... On certain bikes you need to swap gearing a lot, ie trackbikes, or motorcross bikes and here that's large bonus... The downside is obvious, the spring locking the masterlink, can and do often fail and go missing... Not neccerarily because you are removing it very often, it can do so just because it feels like pissing you off... Check it regularily, and preferably use a safetywire to lock it...

On a roadbike, you will rarely swap the sprockets unless the chain and sprockets are worn out, so removal is a non-issue... A staked master link is stronger and completely maintainance free... It will last just as long as the rest of the chain, and doesn't need to be checked anymore than you check/clean/lube the chain... The downside? You need a chain tool to stake it... Can be done DIY style without one, but that takes some patience and knowledge... Best is to go down to the local bike shop, and they will usually stake the chain for you for free... Buying them a donut and coffee will usually get them to lend it too you for an hour or two...

Yes... You can use a clip-link... But I would recommend a staked link...
__________________
  Reply With Quote
Old 08-18-2010, 02:51 AM   #37 (permalink)
Master EcoModder
 
jackbauer's Avatar
 
Join Date: Sep 2009
Location: Ireland
Posts: 734
Thanks: 26
Thanked 304 Times in 171 Posts
Thanks for that. I'll use the clip link for setup an initial testing with a cheap chain then switch to a quality chain and rivet.
__________________
Now, Cole, when you shift the gear and that little needle on the ammeter goes into the red and reads 2000 Amps, that's bad.
www.evbmw.com
  Reply With Quote
Old 08-20-2010, 03:11 PM   #38 (permalink)
Master EcoModder
 
jackbauer's Avatar
 
Join Date: Sep 2009
Location: Ireland
Posts: 734
Thanks: 26
Thanked 304 Times in 171 Posts
Started to do some intital setup now that i have motor number one back together and taperlock sprockets fitted. Also got a 5 metre length of "10B" roller chain and 5 clip links from challenge power transmission for less than 40 euros. Turns out its the exact same fit as 530 motorcycle chain. Before everyone starts screaming that its not safe or not rated for a bike , relax. Its just for setup so i can determine the link count for the final chain and get everything lined up without worrying about screwing up.

I've ordered a 6mm endmill rated for hard steel so hopefully milling out the keyway on motor number 2 will be less a tour de force than last time .......
Attached Thumbnails
Click image for larger version

Name:	chain.jpg
Views:	43
Size:	97.0 KB
ID:	6615   Click image for larger version

Name:	sprockets.jpg
Views:	45
Size:	73.2 KB
ID:	6616   Click image for larger version

Name:	setup1.jpg
Views:	44
Size:	100.5 KB
ID:	6617   Click image for larger version

Name:	setup2.jpg
Views:	41
Size:	95.4 KB
ID:	6618   Click image for larger version

Name:	setup3.jpg
Views:	44
Size:	79.7 KB
ID:	6619  

__________________
Now, Cole, when you shift the gear and that little needle on the ammeter goes into the red and reads 2000 Amps, that's bad.
www.evbmw.com
  Reply With Quote
Old 08-23-2010, 10:06 AM   #39 (permalink)
EcoModding Apprentice
 
Join Date: Aug 2010
Location: DE
Posts: 56

Civic - '93 Honda Civic VX
Team Honda
90 day: 74.19 mpg (US)
Thanks: 6
Thanked 47 Times in 22 Posts
Motor Specs

Do you know the power output of the motors you are using, or their max rpm's. I apologize if I missed that part. Just wanted to make sure that you are not going to over rev them.
  Reply With Quote
Old 08-23-2010, 04:59 PM   #40 (permalink)
EcoModding Lurker
 
Join Date: Jul 2010
Location: Cleveland, OH
Posts: 89
Thanks: 5
Thanked 7 Times in 5 Posts
those pictures make me smile

  Reply With Quote
Reply  Post New Thread


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Project: Rebuilding an '01 Honda Insight as a nonhybrid Fabio Hybrids 158 01-12-2013 11:59 AM
1993 Honda Del Sol conversion delsolectric Fossil Fuel Free 5 06-09-2009 12:18 PM
Honda CRX good for conversion? resestop Fossil Fuel Free 10 05-08-2009 09:10 AM
Honda Insight Concept to Debut at Paris Int. Auto Show SVOboy EcoModder Blog Discussion 32 04-17-2009 10:45 AM
Conversion: 91 Honda Accord w/ HHO anox195 EcoModding Central 36 08-21-2008 07:00 PM



Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com