[DeTomaso] Questions on the Rick Moseley relay kit

[Doug Braun]

Asa Jay,

	There's nothing wrong with the stock radiator fan relay setup, but there is
a problem with the power that feeds these relays going through the ignition
switch.  You don't necessarily need another bank of relays (ala the Moseley
system) to solve this when a couple more fuses will do the trick.  I just
tapped 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.  Then I moved 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.

	Be sure to put corrugated plastic cable covering over the 12 AWG wire
between the ammeter and the auxiliary fuse block.  And be careful tightening
the nuts on the ammeter so you don't damage the ammeter's internal
connections.  This mod changes the fans so that they run whenever the
radiator is hot enough even if the ignition isn't on.  Some may not like
this mode of fan operation but many modern cars run their fans this way to
cool the radiator down at shutdown.  I like it when I'm racing because it
removes heat from the system in preparation for my next run.

	Any 30 amp relay commonly available at auto-parts stores can be used in
place of the stock fan relays if yours are no longer working or trustworthy.

Doug Braun
blue 73L #5505


-----Original Message-----
From: detomaso-bounces at realbig.com
[mailto:detomaso-bounces at realbig.com]On Behalf Of asajay at asajay.com
Sent: Tuesday, June 30, 2009 12:25 PM
To: detomaso at realbig.com
Subject: [DeTomaso] Questions on the Rick Moseley relay kit


The intent of the relay kit was to reduce the load on the headlight
switch and fan circuits.  It does not however replace the original
relays for those devices.  As some have seen who looked over my photos
from last night, I have at least one toast fan relay.  So the question.

With the relay kit, can I delete the fan relays or should I replace
them with a suitable aftermarket relay?

In addition, I figure on using only one thermo switch to turn the fans
on, so can I simply straight jumper the other switch lines?  (not that
it matters I guess if I feed both fans from one source).

Hmmm.  What would you recommend?

Asa Jay