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Learning how to build Lotus Seven replicas...together!
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PostPosted: July 15, 2017, 9:29 am 
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Joined: February 8, 2014, 10:47 pm
Posts: 380
Location: Cornholio OR "Where the magic happens"
Another bad thing about attaching the alternator output to the load side of the battery switch is fried electronics.

If the battery switch is opened when the motor is running bad things usually happen.
Without the battery to absorb the alternator output the regulator can't work fast enough to control the voltage and it gets spiky x1000.
That voltage wailing around rips through electronics like a buzzsaw, it's like hitting 12v devices with 220AC!


The correct way to connect the alternator output when using a battery cutout switch is to get the correct three terminal switch.
That switch will isolate the alternator output and properly remove battery power from all circuits in the car.

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PostPosted: July 21, 2017, 7:12 pm 
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Joined: October 13, 2011, 9:19 am
Posts: 1172
Location: Denver Co
Had the battery tested and it was only doing 17CCA vs the rated 170CCA. Bought a new one and moved on
Hopefully I can take her out tomorrow again.

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My build: http://www.locostusa.com/forums/viewtop ... 18&t=13096


You can build the most awesome thing in the world but at some point, an 80yr old man in a crx is probably going kick your butt on the track... don't ask me how I know.


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PostPosted: July 22, 2017, 7:45 pm 
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Joined: December 7, 2012, 8:28 am
Posts: 1304
Location: Sarasota
Not sure if you got the cooling issue fixed but I have a Derale fan and I love it, I would definitely recommend it. I think mine was about $100 for a 2 speed 12" puller. Right out of the box you can feel it is very well made. I was quite shocked at the amount of air it moves, one of the best value products on my car.

Here is a link to the one I bought https://www.amazon.com/gp/product/B004X ... UTF8&psc=1

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