Roden was right? (was RE: Rudman Was Right! )

[Michael Everett <michaeleve@yahoo.com>]

Hi All - 

I had this same thought while wandering the pits at Woodburn and never 
remembered to ask someone who's 'In the Know'.

I know Wayland was talking about doing a series/parallel switch on his pair of
motors a ways down the strip to try and improve his acceleration during the
second half of the strip. 
So I wondered: Why not do a Series/Parallel switch on the batteries as well?
Forget the expensive controllers. Maybe need a herkin big series resistor that
you can switch out after launch to keep from having to buy new tires every
trip.       Calibrate the launch with the resistor??

Click: Launch
Click: Resistor cutout
Click: Batteries to Parallel
Click: Motors to Parallel

Might be a bit to much 'pilot workload' since doing anything too early
would probably blow a battery or motor.

Anybody tried this on a 'modern' high voltage drag car?

(Yes I know it's just the standard contactor controller setup writ large.
                     Probably should have 'Baker Electric' on the side eh?)

Michael Everett   R5EV

--------------Original Message------------------
From: "David Roden (Akron OH USA)" <roden@ald.net> 
To: ev@listproc.sjsu.edu 
Date: Thu, 30 Aug 2001 23:57:15 -0400 
Subject: RE: Rudman Was Right! (was Dualin'7s Smoked Controllers) 


On 30 Aug 2001, at 18:50, RichSJ@aol.com wrote:

> I have two DCP 1200 amp controllers and they don't seem to
> be as good as a bypass contactor. 

I'll probably get flamed for suggesting it, but why not use a good old-
fashioned series-parallel contactor setup?  That would have no current 
limit at all.  Of course the contactors would have to be pretty 
substantial ...


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