[DeTomaso] Hooking an MSD 6AL Rev Limiter to disengage the A/C Compressor
Dave
davel at emspace.com
Thu Jun 9 17:00:29 EDT 2016
Good.
Probably only a hundred bucks if you didn't want the other -2 features.
dave
On 6/9/2016 1:22 PM, Forest Goodhart wrote:
> You could use an MSD 8950 rpm switch and relay for this.
>
> Forest
> ------------------------------------------------------------------------
> *From:* Dave <davel at emspace.com>
> *To:* detomaso at server.detomasolist.com
> *Sent:* Thursday, June 9, 2016 12:28 PM
> *Subject:* Re: [DeTomaso] Hooking an MSD 6AL Rev Limiter to disengage
> the A/C Compressor
>
> Hey Rob
>
> A 6AL only limits the coil drive output.
>
> A 6AL-2 or a 6AL plus has a Retard Step output
> "Retard Step. This retard is activated when 12 volts are applied and
> rpm is above the Step1 Rpm value."
>
> It's meant to keep those 14:1 motors from blowing the teeth off the
> ring-gear,
> but just program it to go true at 4000 and do your thing with a relay.
>
> dave
>
>
> On 6/9/2016 6:19 AM, Rob Dumoulin wrote:
>
> It appears engine revs killed my Sanden rotary compressor.A That or it
> was a cheaper build.A Regardless, my new motor will rev even higher
> and this time I am installing a high-pressure shut-off valve.A In
> addition, I'd like to use the rev limiter feature of the 6AL to shut
> off the compressor so I won't kill another one.
> I have heard of such a mod but have not seen technically how to make it
> work.A Anybody know what MSD parts are needed and how to hook it up to
> the A/C?
> RobA
>
>
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-------------- next part --------------
Good.
Probably only a hundred bucks if you didn't want the other -2 features.
dave
On 6/9/2016 1:22 PM, Forest Goodhart wrote:
You could use an MSD 8950 rpm switch and relay for this.
Forest
__________________________________________________________________
From: Dave [1]<davel at emspace.com>
To: [2]detomaso at server.detomasolist.com
Sent: Thursday, June 9, 2016 12:28 PM
Subject: Re: [DeTomaso] Hooking an MSD 6AL Rev Limiter to disengage the
A/C Compressor
Hey Rob
A 6AL only limits the coil drive output.
A 6AL-2 or a 6AL plus has a Retard Step output
"Retard Step. This retard is activated when 12 volts are applied and
rpm is above the Step1 Rpm value."
It's meant to keep those 14:1 motors from blowing the teeth off the
ring-gear,
but just program it to go true at 4000 and do your thing with a
relay.
dave
On 6/9/2016 6:19 AM, Rob Dumoulin wrote:
It appears engine revs killed my Sanden rotary compressor.A That or
it
was a cheaper build.A Regardless, my new motor will rev even higher
and this time I am installing a high-pressure shut-off valve.A In
addition, I'd like to use the rev limiter feature of the 6AL to shut
off the compressor so I won't kill another one.
I have heard of such a mod but have not seen technically how to make
it
work.A Anybody know what MSD parts are needed and how to hook it up
to
the A/C?
RobA
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