Mike,
Well, I think I can pull off ALL 3 options.
Changing the gearing to 1.375:1 only requires another sprocket. $12
mcmaster.com. Maybe add a chain link.
Changing the clutch voltage would require having a longer wire on the feed
to the solid state relay. Then tap the pack at the voltage lower than 48V.
To eliminate the clutch completely, I think I've got a spare jackshaft.
Then add a sprocket. If I don't have that ratio (and I've got quite a few
saved up), another $12 mcmaster.com. I can get the replacement jackshaft
ready, and swapping from the transmission to the direct drive should take
less than 15 minutes.
What do you think the aerodynamic effects are at that speed? I guess more
important as I hit 50/60 MPH. I could see some improvement to push air
around the wide battery pack. That's a bit like a brick wall right now.
What effect does a front fender have?
Later,
Darin
BadFishRacing
----- Original Message -----
From: "Mike" <[EMAIL PROTECTED]>
To: "ElectricMotorcycles" <[email protected]>
Sent: Sunday, October 29, 2006 8:35 AM
Subject: Re: [ElectricMotorcycles] Latest on the BadFish Drag Bike
So I'm looking at a few options:
A) Change the gearing so 1st gear is 1.375:1 and 2nd gear is 1:1. This
will put a smaller load change on the motors, and should hit just over 70
at 2900 RPM.
B) Lower the voltage way down on the clutch (voltage yet to be determined)
so that the clutch actually slips and bring on the added load slowly.
Might tear up the clutch though?
C) Toss the transmission and see if I can get it running as quick as I did
before the transmission.
Considering your financial situation (which I really don't know anything
about but I'm assuming you're like the rest of us) and the time
constraints I think I'd go with C. Just get it back the way it was.
Maybe do a little more with aerodynamics?
--
The Electric Motorcycle Portal
http://www.electricmotorcycles.net/
Electric Motorcycle Listserv
http://www.electricmotorcycles.net/listserv
--
No virus found in this incoming message.
Checked by AVG Free Edition.
Version: 7.1.408 / Virus Database: 268.13.17/505 - Release Date:
10/27/2006
