b'BRINGING THEPorsche Integrated Regulator AlternatorsOUTSIDE, IN. FAQs, Installation and Wiring TipsTransitioning from PorscheSomeofthemostcommonapplicationscov-External to Integratederedinthistopicare1974-1983Porsche Regulator Alternators 911/T. While these applications may be well over30yearsold,thePorscherestoration marketisincrediblyactive,creatingagreat demandforaftermarketpartsandservices. Comparedtomoderncars,theengineUnderstanding this demand and the need for compartmentonvintagecarsislaidimprovementsoversomeoftheantiquated out in a way that makes a mechanicstechnology,somecompaniesofferupdated lifemuchsimpler.Thisisofcourseversions of these products.with exception to the charging systemThe alternators being sold in the aftermarket and the external voltage regulators thatby Valeo are using an integrated regulator in plaguedcarsupuntilthelate70sandplace of the original external regulators of the early 80s.70sand80s.Thisposescertaininstallation Thereareafewissuessurroundingexternalchanges that can trip up even seasoned techni-voltage regulators. First off, the external regu- cians causing them to seek guidance from the lator is mechanical. Contact points within themanufacturer. regulatoropenandclosemanytimesperThis new design relocates the regulator onto second to create the 13.5V to 14V that the vehi- the back of the alternator and can be replaced clesystemneeds.Thesecontactpointscanseparately from the alternator later down the burnupjustlikeignitionpointsandwealllineifnecessary.Threadsonthealternator know how great those were. They can also getFigure Bstuckclosed,whichresultsinovervoltageshaft have also changed from the original M16 throughoutthesystempotentiallydamagingx 1 to M17 x 1.5. electrical components or the battery. Theseandmanyotherreasonsarewhyinte-grated regulators were designed. By operating internal to the alternator, they can be directly connectedtothekeycomponentsoffering better performance and reliability. This makes aninternallyregulatedalternatoracommon upgradeforthoselookingtoimprovethe performance of their vehicles. This does however cause some confusion as to how to properly wire up the vehicle which is why companies like Valeo have provided cheat sheets to assist in this process as well as techni- Figure Bcal support to handle any unique situations. In Figure Ayou can see a list of some of the most common applications that weve come across in relationtothistopicaswellasthediagram showing the proper way to wire it up. Valeo 432776Figure A41'