RE: (ET) E20 overdrive (more speed)

["Konstanty, Walter \(GE Consumer & Industrial\)" <Walter Konstanty ge com>]

Remember - they had a "golf cart" option for a 2-seater and golf bag 
holder so they must be able to do 18 holes or more on a charge.
I've had mine full tilt on a hill and it's scary as steering is an 
issue....and those brakes!
The DC motor torque drops off in field weakening range because of less 
field flux so the gearbox loading decreases....whether or not it could 
handle the input pulley RPM is unknown....they are Peerless gearboxes so 
they could be asked.

..Walt

-----Original Message-----
From: elec-trak-bounces cosmos phy tufts edu
[mailto:elec-trak-bounces cosmos phy tufts edu]On Behalf Of steves
Sent: Friday, June 10, 2005 2:29 PM
To: et
Subject: Re: (ET) E20 overdrive (more speed)


I'd start to worry about steering stability at those speeds. But it does 
bring up a related question: how far could an ET go if it's just 
'driven' (no attachments) down the road? ( I got to thinking about this 
one day after joking to the kids I was going to drive the ET to work - 
they got all worried that I would embarass them if  I was to be seen by 
their friends).

- SteveS


makinglightning comcast net wrote:

> I have an E20 that I will not be using for anything other than going 
> around the yard and driving down to the neighbors houses.
>
>  
>
> I am thinking of changing the pulley sizes on the motor and 
> transmission. Basically doubling the speed. right now the motor has a 
> 4" and the transmission has a 6", I will put a 6" on the motor and a 
> 4" on the transmission. I can not just swap them as the shaft 
> diameters are different.
>
>  
>
> Does anyone out there have any input on this idea? Do you think I am 
> pushing things getting a 19mph top end? (top gear) Do you think I 
> could push it further?
>
>  
>
> I have no idea what the transmission is capable of.
>
> Does anyone know what the top speed in gear 1 is of an E20? I know 
> gear 4 is 9.5mph, which is fairly fast for mowers. Most are 5-6 and 
> the comercial zero turns are 9-11mph if I am not mistaken, so 19mph 
> would be absolutely flying.
>
> Any input would be appreciated.
>
> Kevin
>
>------------------------------------------------------------------------
>
>_______________________________________________
>Elec-trak mailing list
>Elec-trak cosmos phy tufts edu
>https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
>  
>



_______________________________________________
Elec-trak mailing list
Elec-trak cosmos phy tufts edu
https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak