Alta Alternator Underdrive Pulley for my R50?
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1st Gear
Joined: Sep 2010
Posts: 29
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Alta Alternator Underdrive Pulley for my R50?
Ive noticed alta performnace makes an alternator underdrive pulley for r50s, will it make any noticeable diferrence at all?
Im new to the forum and could use any help on mods if anyone has suggestions
Im new to the forum and could use any help on mods if anyone has suggestions
4th Gear
Joined: Jul 2010
Posts: 324
Likes: 0
From: Illinois
I may be wrong, but I believe that is to be used in conjunction with the 2% crank pulley so it doesn't spin your alternator too fast.
I can't really help you on an R50 besides tell you to get an R53 and there is a WORLD of upgrades for it and most are cheap.
Good luck and welcome!
I can't really help you on an R50 besides tell you to get an R53 and there is a WORLD of upgrades for it and most are cheap.
Good luck and welcome!
OVERDRIVE
Joined: Aug 2006
Posts: 7,201
Likes: 8
From: Norfolk, VA
ViperGTS is correct - the only purpose for an underdrive pulley on an alternator is so that you don't overspeed it if you're running a larger crank pulley.
The physical load that the alternator places on the engine depends on the electrical load of all the car's devices, so spinning the alternator slower wouldn't really reduce its parasitic drag on the engine.
The physical load that the alternator places on the engine depends on the electrical load of all the car's devices, so spinning the alternator slower wouldn't really reduce its parasitic drag on the engine.
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