[DeTomaso] Fw: Questions on the Rick Moseley relay kit

[asajay at asajay.com]

http://www.panteraplace.com/Tech%20Info/Volts%20of%20Confidence.pdf

Quoting Will Demelo <wdemelo at cogeco.ca>:

> Does anyone have a wiring diagram for the Mosely relay kit?
> Will
> ----- Original Message -----
> From: "Doug Braun" <doug at silicondesigns.com>
> To: <mikeldrew at aol.com>; <asajay at asajay.com>; <detomaso at realbig.com>
> Sent: Wednesday, July 01, 2009 12:55 PM
> Subject: Re: [DeTomaso] Questions on the Rick Moseley relay kit
>
>
>> Mike wrote >>>:
>>
>>>>> Again there's a misunderstanding of what the relay kit is, and what it
>> does.  The bank of relays on the kit is used to control the headlights,
>> not
>> the fans.
>>
>> I don't have a diagram for Rick's kit but your statement above implies
>> that
>> Rick's kit doesn't solve the "fan current through the ignition switch"
>> problem.  Does it?  Since Asa Jay's concern was about fan relays, my
>> intent
>> was to show a simple way to solve the "fan current through the ignition
>> switch" problem without the expense of Rick's setup.  I very much like the
>> looks and quality of Rick's system but some prefer to keep the car looking
>> as stock as possible.
>>
>> -----------------------
>>>>> My car operates in the same manner and I find it a nuisance.  I have a
>> battery disconnect that I always use because there's no good reason to
>> drain
>> the battery spinning the fans to cool water in the radiator when the
>> engine
>> isn't running.
>>
>> Like I said "Some may not like this (run till cool) mode of fan operation"
>> but I prefer it.  Not just for the racing reasons I cited in my last email
>> but also because it's difficult to hear your fans spinning when the engine
>> is running due to the loud exhaust.  Every time I turn off my car I hear
>> the
>> reassuring sound of my fans.  I once caught a failing fan motor this way
>> because it was making a squealing noise you'd never hear with the engine
>> running.  The energy used by the fans in the 2 minutes or so it takes for
>> them to shut off is only about 1% of the capacity of a typical car
>> battery.
>> If your battery won't handle this, you need a new battery.
>>
>> ------------------------
>> Here's the mod again, in a nutshell, with directions for wiring it either
>> as
>> a "run till cool" or "turn off with the key" type system.  The "turn off
>> with key" method only requires an extra wire and "4-terminal" type relays.
>>
>> Tap off the alternator (load) side of the ammeter with a 12AWG wire over
>> to
>> a small auxiliary ATC type fuse block screwed to the firewall near the
>> stock
>> main fuse panel.  Be sure to put corrugated plastic cable covering over
>> the
>> 12 AWG wire between the ammeter and the auxiliary fuse block.  Move the 2
>> thick pink fan relay feed wires from the main fuse panel's #11 & #12
>> locations to separate 15A fuses in the new auxiliary block.  For a "RUN
>> TILL
>> COOL" type system, you're done.
>>
>> For a "TURN OFF WITH THE KEY" type system, replace the stock 3-terminal
>> fan
>> relays near the radiator with 4 terminal relays.  Then add an additional
>> 18
>> AWG wire connection between the load side of fuse 11 and one of the coil
>> terminals on both relays.  If you buy an ISO type relays whose terminals
>> are
>> conveniently numbered, connect them as follows:
>>
>> Terminal 85 via 18AWG wire to load side of fuse 11.
>> Terminal 86 to temperature switch.
>> Terminal 30 via pink wire to auxiliary fuse block.
>> Terminal 87 to fan.
>>
>>
>> Doug Braun
>> blue73L #5505
>>
>>
>>
>>
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