I would like to add both safeguards. Revs could be independent of high pressures. I could be ripping it up to 6500 RPM in second gear and not hit the pressure limit or could be traveling 130 MPH in 5th at 4K RPM down my driveway with no airflow and hit the pressure limit Rob DuMoulin 904.476.8744 rob@dumoulins.net www.kbsi.co http://www.linkedin.com/pub/rob-dumoulin/0/1b6/58 On Thu, Jun 9, 2016 at 3:37 PM, Larry Weston <lplugw@hotmail.com> wrote:
Is it the revs or the high side pressure build up that does in the compressor?
Could it be as easy as using a trinary switch high side limit switch to cut out the compressor clutch? __________________________________________________________________
From: DeTomaso <detomaso-bounces@server.detomasolist.com> on behalf of Dave <davel@emspace.com> Sent: Thursday, June 9, 2016 3:28 PM To: detomaso@server.detomasolist.com 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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I would like to add both safeguards. Revs could be independent of high pressures.A I could be ripping it up to 6500 RPM in second gear and not hit the pressure limit or could be traveling 130 MPH in 5th at 4K RPM down my driveway with no airflow and hit the pressure limit Rob DuMoulin 904.476.8744 [1]rob@dumoulins.net [2]www.kbsi.co [3]http://www.linkedin.com/pub/rob-dumoulin/0/1b6/58 On Thu, Jun 9, 2016 at 3:37 PM, Larry Weston <[4]lplugw@hotmail.com> wrote: A A Is it the revs or the high side pressure build up that does in the A A compressor? A A Could it be as easy as using a trinary switch high side limit switch to A A cut out the compressor clutch? A A A __________________________________________________________________ A A From: DeTomaso <[5]detomaso-bounces@server.detomasolist.com> on behalf of A A Dave <[6]davel@emspace.com> A A Sent: Thursday, June 9, 2016 3:28 PM A A To: [7]detomaso@server.detomasolist.com A A Subject: Re: [DeTomaso] Hooking an MSD 6AL Rev Limiter to disengage the A A A/C Compressor A A Hey Rob A A A 6AL only limits the coil drive output. A A A 6AL-2 or a 6AL plus has a Retard Step output A A "Retard Step. This retard is activated when 12 volts are applied and A A rpm A A is above the Step1 Rpm value." A A It's meant to keep those 14:1 motors from blowing the teeth off the A A ring-gear, A A but just program it to go true at 4000 and do your thing with a relay. A A dave A A On 6/9/2016 6:19 AM, Rob Dumoulin wrote: A A >A A A It appears engine revs killed my Sanden rotary compressor.AA That A A or it A A >A A A was a cheaper build.AA Regardless, my new motor will rev even A A higher A A >A A A and this time I am installing a high-pressure shut-off valve.A A A In A A >A A A addition, I'd like to use the rev limiter feature of the 6AL to A A shut A A >A A A off the compressor so I won't kill another one. A A >A A A I have heard of such a mod but have not seen technically how to A A make it A A >A A A work.AA Anybody know what MSD parts are needed and how to hook it A A up to A A >A A A the A/C? A A >A A A RobA A A > A A > A A > A A > _______________________________________________ A A > A A > A A > Detomaso Forum NO LONGER Managed by POCA A A > Posted emails must not exceed 1.5 Megabytes A A > DeTomaso mailing list A A > [8]DeTomaso@server.detomasolist.com A A > [1][9]http://server.detomasolist.com/mailman/listinfo/detomaso A A [2]DeTomaso Info Page A A [10]server.detomasolist.com A A This is the DeTomaso mailing list, a free and open forum for the A A discussion of issues surrounding all DeTomaso automobiles. This is an A A unmoderated mailing list ... A A > A A > To manage your subscription (change email address, unsubscribe, etc.) A A use the links above. A A > A A > Members who post to this list grant license to the list to forward A A any message posted here to all past, current, or future members of the A A list. They also grant the list owner permission to maintain an archive A A or approve the archiving of list messages. References A A 1. [11]http://server.detomasolist.com/mailman/listinfo/detomaso A A 2. [12]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 [13]DeTomaso@server.detomasolist.com [14]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:rob@dumoulins.net 2. http://www.kbsi.co/ 3. http://www.linkedin.com/pub/rob-dumoulin/0/1b6/58 4. mailto:lplugw@hotmail.com 5. mailto:detomaso-bounces@server.detomasolist.com 6. mailto:davel@emspace.com 7. mailto:detomaso@server.detomasolist.com 8. mailto:DeTomaso@server.detomasolist.com 9. http://server.detomasolist.com/mailman/listinfo/detomaso 10. http://server.detomasolist.com/ 11. http://server.detomasolist.com/mailman/listinfo/detomaso 12. http://server.detomasolist.com/mailman/listinfo/detomaso 13. mailto:DeTomaso@server.detomasolist.com 14. http://server.detomasolist.com/mailman/listinfo/detomaso