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From: Bob La Londe <none@none.com99>
Newsgroups: rec.crafts.metalworking
Subject: Re: Batteries - EV Conversion
Date: Sat, 1 Mar 2025 15:51:31 -0700
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On 3/1/2025 3:37 PM, Jim Wilkins wrote:
> Those horsepower numbers seem exceedingly large. Is it really required?
> I'm thinking in terms of 100hp peak, 20hp continuous at most. It
> might require a multi-speed transmission, but that's key to efficiency
> anyway. Am I overlooking something? A 12 kg LiFePO4 battery can deliver
> about a kilowatt for a minute or so. Do you really want 250 of them?
> 
> bob prohaska
> 
> ---------------------------------------
> My 91 Ford Ranger has a 105HP 4 cylinder engine that can barely get it 
> to 70MPH on flat ground. It was fine around town and for commuting in 
> bumper to bumper traffic at 50MPH. I bought it for its 7' bed and put up 
> with the Pinto engine.
> 
> https://en.wikipedia.org/wiki/Ford_Pinto_engine#Lima_OHC_(LL)
> 
> "A version with two spark plugs per cylinder, distributor-less ignition, 
> and reduced main bearing sizes was introduced in the 1989 Ford Ranger 
> and 1991 Ford Mustang. This engine produced 105 hp (78 kW) and 183 N⋅m 
> (135 lb⋅ft)."
> 

Jim basically made the same point as my long winded reply.

Horsepower is horsepower.  I want to make a surface street work vehicle 
out of it.  Around here that means I'll have to do 55 once in a while to 
get everywhere around town.  I also want to be able to haul a little bit 
with it.

If I was using it as a tractor substitute around the property it might 
be different, but I have a tractor already.

Having owned a few trucks, all used for work, some rarely going highway 
speed, I can't believe I'd want less than 200HP on tap, but if the price 
was right I might live with 160ish.


-- 
Bob La Londe
CNC Molds N Stuff

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