Hi Everyone, I am looking for information on a 75 AMP alternator for a 1980 450 SL. I believe the car (on my SL) technically requires only 55 AMPS - the SLC (not mine) requires 75 AMPS. I am going to put a 55 AMP alternator on it to stay with the way the car was built. I am a purist. But I want to add a vintage Blaupunkt radio and an air pump to add to my system. The air pump for the rear pneumatic system is a 1986 420 SEL pump. I will wire it to use one of the channels on my Blaupunkt amplifier (kind of like pneumatic hydraulic lifts on Carlos Santanna's low riders in California). Again, I am a purist, so all of the ambient electrical wiring has to reflect the original system calculations for the fuse box so as to not blow electrical parts. Blowing an ECU or a TCU is expensive. Ugh! Thus, I have to do the mathematical calculations on the draw for an amplifier for my Blaupunkt radio off of the 12V H8 battery. I also want to add an air pump from 1986 and a check valve in the front of the car for the constancy of air security for my gas tank locking system. Based on my experience, the door actuator system for the VDO locking system on the driver's side, the door actuator (based on an alloy metal VDO actuator from 1973) is better than all of the newer VDO systems - that is my personal opinion - not to upset the Gods of VDO and strange Voodoo in the air. In the newer models actuators, it is not as strict as the old alloy door actuator. The old 1973 alloy door actuator doubles the newton meters of force on the passenger side because their is no hole in the bottom of the actuator. I did the calculations and rebuilt my Bomoro locking system with the pneumatic effect based on the amount of pneumatic air & NM required to make the full extension (move up and down) of the door locking system's armature through a full cycle of an extension down - all to make the little popping sound work right when the door is open and closed (the popping sound, I believe, now seen in new Ford explorer's was Mr. Bomoro's invention via Mercedes, I believe...). I am still working on the perfection of the entire movement of the armature for a full cycle with "pop" included, but I have it figured out (or a snap whichever you prefer). In any event, does anyone know how to put on an air pump, and, if an alternator is used that is 75 AMPS instead of 55 AMPS,(for a 10 amp radio which I think only technically draws 2.5 amps from the channel 1 on the Blaupunkt amp), does the 1980 450 SL (or the like) enjoy the privilege of higher amps to fully assist and manage the draw on an A/C system? Does it improve the A/C's performance in the car? In other words, does a higher amping alternator result in relieving any electrical stress on the A/C system? Has anyone found any success stories for a restored system using larger output in amps for an a/c system on the SL system or even an SEL? Such as better mathematical performance for the attenuation of electrical conductivity? Please see below for an aeronautical engineered improvement online. MBDiesel1.com = coco_4449@yahoo.com
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