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OGMFS Member
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1,327 Posts
I got them. smallest available, 52 mm o.d.A socket hardly fits.$24 shipped.
 

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HOT AIR BALLOON OWNER
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14,932 Posts
1-3/4" is the smallest I have seen.
 

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305 Posts
So you guys add them to your 105 amp alternators? Does the stock belt still fit good with this smaller pulley? Im holding off on a bigger alt. because with an efan running and my 900 watt stereo system running, it needs some more power at idle.
 

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HOT AIR BALLOON OWNER
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14,932 Posts
So you guys add them to your 105 amp alternators? Does the stock belt still fit good with this smaller pulley? Im holding off on a bigger alt. because with an efan running and my 900 watt stereo system running, it needs some more power at idle.


You just need to purchase a 145A and the OD alt pulley.
 

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ΜΟΛΩΝ ΛΑΒΕ
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8,527 Posts
I'm sure they work well, but I'd also think they'd...

a) increase belt wear, due to tighter radius, and...
b) shorten alternator life, due to the greater constant and ultimate RPM
true it would seem that way, but ive had mine like this for about 1.5 yrs on a 145A, no problems, if the alt craps out i still have my stock 105 to get around on for a while, and i will just order a higher amp alt, its worth it to not see my volts drop to 12.8 while idling and the e-fans come on, now they only drop to about 13.5 and then go right back up to 14
 

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HOT AIR BALLOON OWNER
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14,932 Posts
Fair enough...I can see it being a less expensive option to replacing a functioning alt. I'd just keep an eye on the belt, checking for accelerated wear.


$40-70 isn't much and you pick up FOURTY amps, that's a vast amount.
 
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