You could use an MSD 8950 rpm switch and relay for this. Forest From: Dave <davel@emspace.com> To: detomaso@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 _______________________________________________ Detomaso Forum NO LONGER Managed by POCA Posted emails must not exceed 1.5 Megabytes DeTomaso mailing list [1]DeTomaso@server.detomasolist.com [2]http://server.detomasolist.com/mailman/listinfo/detomaso To manage your subscription (change email address, unsubscribe, etc.) use the li nks above. Members who post to this list grant license to the list to forward any message p osted here to all past, current, or future members of the list. They also grant the list owner permission to maintain an archive or approve the archiving of lis t messages. References 1. mailto:DeTomaso@server.detomasolist.com 2. http://server.detomasolist.com/mailman/listinfo/detomaso _______________________________________________ Detomaso Forum NO LONGER Managed by POCA Posted emails must not exceed 1.5 Megabytes DeTomaso mailing list DeTomaso@server.detomasolist.com http://server.detomasolist.com/mailman/listinfo/detomaso To manage your subscription (change email address, unsubscribe, etc.) use the links above. Members who post to this list grant license to the list to forward any message posted here to all past, current, or future members of the list. They also grant the list owner permission to maintain an archive or approve the archiving of list messages. You could use an MSD 8950 rpm switch and relay for this. Forest __________________________________________________________________ From: Dave <davel@emspace.com> To: detomaso@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 _______________________________________________ Detomaso Forum NO LONGER Managed by POCA Posted emails must not exceed 1.5 Megabytes DeTomaso mailing list [1][1]DeTomaso@server.detomasolist.com [2][2]http://server.detomasolist.com/mailman/listinfo/detomaso To manage your subscription (change email address, unsubscribe, etc.) use the li nks above. Members who post to this list grant license to the list to forward any message p osted here to all past, current, or future members of the list. They also grant the list owner permission to maintain an archive or approve the archiving of lis t messages. References 1. mailto:[3]DeTomaso@server.detomasolist.com 2. [4]http://server.detomasolist.com/mailman/listinfo/detomaso _______________________________________________ Detomaso Forum NO LONGER Managed by POCA Posted emails must not exceed 1.5 Megabytes DeTomaso mailing list [5]DeTomaso@server.detomasolist.com [6]http://server.detomasolist.com/mailman/listinfo/detomaso To manage your subscription (change email address, unsubscribe, etc.) use the links above. Members who post to this list grant license to the list to forward any message posted here to all past, current, or future members of the list. They also grant the list owner permission to maintain an archive or approve the archiving of list messages. References 1. mailto:DeTomaso@server.detomasolist.com 2. http://server.detomasolist.com/mailman/listinfo/detomaso 3. mailto:DeTomaso@server.detomasolist.com 4. http://server.detomasolist.com/mailman/listinfo/detomaso 5. mailto:DeTomaso@server.detomasolist.com 6. http://server.detomasolist.com/mailman/listinfo/detomaso