The snowmobile CVT sounds interesting, I'll look into that as an option. As for speeds, most of my local side streets are posted 40-45mph, and having a little more power is always nice. I have some side roads I can take to work where the speed limit is 50mph, so having a bike that can do 80mph would be just fine (at least for the freeway). My objective of 100mph is just a target I'd like to hit, even if it's only for a short stretch. If it's too expensive to achieve (overall performance) then lowering my top end is not out of the question. If I really feel need to hit 100-200mph, I can always borrow a friends bike :-) The 100 mile range I figure would be the battery pack limit. With all I've read about how damaging full discharges are, II would want to max the pack every time I ride. My average daily driving is 30 miles on a slow day (just to work and back)and on busier days it can be 50-60 miles. I would be able to top off at work.
By the way, I'm looking at some 72volt packs that are rated at 400watthrs each. I'm going to see about putting 12 of them together as my power source. Problem right now is 12 of them will cost me about $10K. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of damon henry Sent: Friday, May 18, 2007 7:59 AM To: [email protected] Subject: Re: [ElectricMotorcycles] Re; EM Conversion question At 72 volts why only 40 mph? Is that just the limit on the roads you are riding? With your setup it should be easy to do freeway speeds. damon >From: Jeff Blamey <[EMAIL PROTECTED]> >Reply-To: ElectricMotorcycles <[email protected]> >To: ElectricMotorcycles <[email protected]> >Subject: Re: [ElectricMotorcycles] Re; EM Conversion question >Date: Fri, 18 May 2007 09:45:51 -0400 (EDT) > >Ray Wong, see EVALBUM, check under Motorcycles, has the Comet-Hoffco >snow-mobile cvt. I am using a smaller Comet-Hoffco 330 CVT. With no springs >and stock weights I am losing RPM through late full engagement... the >clutch slips so I am not utilizing the full power band and going into 1:1 >ratio. I have new weights coming in next week to engage the clutch earlier. >The 330 is rated at much lower power than the Perm 132 I am using can >output but I figure the engineers always overbuild (I have seen more than >25 years professional experience of this), so I will see next week. My EMC >is alive and well, getting me back and forth to work at 40mph tops on bac >streets, 3.9 miles each way, no charge in middle of day. I snagged some >solar panels that could not be sold (donation from work) and hope to have a >solar charging station set up at work (luckily I work for a green company >and am in such a sunny state (CO)!!!). My bike is the Franken'ceptor VF500 >Honda. I agree on finding a frame that can carry the batteries you want to >use. Try not to alter frame geometry, think of using saddle bag positions >for two batteries to even weight distribution. If you can avoid mounting >motor on swingarm you lower unsprung weight. If you build it too heavy then >you will lose the fun of the motorcycle, agile, nimble, etc. I am using >55ah AGMs, 72 volts, 300amp Alltrax, 6-6 amp onboard chargers, Vicor DC to >DC converter. > >I am going to be showing the bike at a couple of Renewable Energy >fairs. >One in Arvada,CO on June 2(?), and there is something in Boulder in late >May. I am going to be working the the Midwest Renewable Energy Fest (fair), >would like to bring the bike but I am flying in. That would be a blast. > >If anyone is going to be out in the Denver area and wants to see my >bike >let me know. I am going to try to get to another event somewhere within >easy trailer range this summer, ideas? Just have to finish building the >trailer in my garage!! lol >Jeff > > > > >-----Original Message----- > >From: Johnathan Vail <[EMAIL PROTECTED]> > >Sent: May 18, 2007 8:08 AM > >To: ElectricMotorcycles <[email protected]> > >Subject: Re: [ElectricMotorcycles] Re; EM Conversion question > > > >compton wrote: > >>> I'm looking to build a bike that has a 100mph capability and a > >>> 100mile range. > >>> > >>> where I want fast starts and don't need the range (surface > >>> streets), >and > >>> other days where > >>> I need to commute (freeway), and need the longer range. > >>> I think by keeping the tranny I can get the fun starts in the > >>> lower >gears, > >>> and get better mileage with the taller gears. > >>> > >> > >> To some extent this is true. However the real problem with > >> motorcycle conversions is fiding the volume to fit things in. A > >> transmission takes >up > >> a lot of valuable space needed for batteries. > >> > >> > > > >I read somewhere of using a CVT from a snowmobile. Has anyone here > >looked into it? > > > >jv > >Founder, Hells Amperes Motorcycle Club > > > > > >-- > > > >Blog: http://volcano.newts.org > > > > > > _________________________________________________________________ More photos, more messages, more storage-get 2GB with Windows Live Hotmail. http://imagine-windowslive.com/hotmail/?locale=en-us&ocid=TXT_TAGHM_migratio n_HM_mini_2G_0507
