Quote:
Originally Posted by samiam44
Statement still stands- WHY use an 80A alternator when you can easily put a 143A one on your car? I understand Steve's comments as he works at a shop- so he is putting a rebuilt Bosch alternator on customers cars- it's an improvement. But the real untold advantage with the 143A is bosch seems to have upped the voltage range. Those you can pull nearly 100A just off idle.
IF your DYI.. go 143A, if your paying a shop to install it- go 80A.
Michael
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I agree with this 100%. I upgraded the alt in my 300SEL to the 143A and cannot be happier. Also did my SDL which is overkill, but again... I needed an alternator so big deal.
You guys also have to remember modern batteries charge differently so they need the extra power if you do lots of idle and start/stop city driving. I killed my battery last summer in my 300SD as the alternator could not keep up with power demand with the HVAC on in the city. Upgraded to 115A and no problems since.
Now if I could figure out how to stuff a larger one on my M117 I would be in business. I THINK I can reclock an AL129X 180° to clear the bracket, then upgrade belt.