88MustangGX

Are they a good mod for the 100 bucks? or will it do more harm than good? thanks! What about the belts? do you change them out to a smaller size? or will the stock one work still?

89 lx50

first off your getting ripped off if your paying 100 bucks!! what kind you using i have the mac aluminum on my car i love them and the battery voltage stayed the same i didnt lose alt power like most puleys!! the macs go for 75.00!!

88MustangGX

well with shipping i was looking at the BBK's but i did see the mac's as well. thanks

gspfunk

Depending on what brand you go with, I would recommend doing the 3g alternator conversion first or at the same time. You'll want it anyway if you decide to go w/ an electric fan or run anykind of audio system.

I would look at the ASP (Auto Specialties) pullies. They are great quality and have different sets that allow you to chose how much underdrive you want (<--you can basically choose what RPMs you want to reach full charge).

PJB

You use the original belt.
I put Pro Form underdrive pullies on my '92 and noticed that at idle the lights went dim and the alternator was barely charging. I did the 130 amp alternator conversion and it charges better than ever.


Summit sells their own brand and theyre pretty cheap. I wish I had known that because theyre cheaper than the $90 (shipped) I paid for mine.

92hatchLX

I couldn't use the original belt, and my MAC underdrives were only 60.00 shipped [&:], there's a little bit of a power increase.

hellas85stang

i dont like them,they slow down everything and no gurantee ya altanater is gonna work right after it then ya have to get a better amp alt.. and its just a few hp anyway nuthin you will feel.. slows ya water pump...

Stanpower

I would look on ebay if you shop there you can get them at half the price and on my 95 gt the old belt fit find..Good luck

[IMG]local://upfiles/48921/98DF58F4C2664EB1A8005132E6E9D7BD.jpg[/IMG]