Who makes dual-belt alternator pulleys for the FC?

infernosg · 06-07-2011, 08:06 AM

Too bad no one makes a smaller diameter alternator pulley (overdriven) to work with underdriven main pullies to maintain alternator output. I've been looking for a way to slow down the water pump for track use but also maintain alternator output for the few times the car sees street use.

jfaplanet · 06-07-2011, 09:42 PM

http://mrcmfg.com/catalog/product_in...roducts_id=393

bah2792 · 06-08-2011, 07:54 PM

Type in Rx7 Pulley on ebay. There is a guy in Florida that sells OEM outside diameter pulley's with 2 belts. Got some for my car last year. They are in chrome and black. Just looked on ebay and they are there now.

Pete_89T2 · 06-08-2011, 07:56 PM

^ Using my stock S5 alternator pulley as reference, the Re-Speed pulley, at 2-5/8" diameter per their website is the same exact diameter as stock, so it wouldn't help infernosg, as he's looking for an overdrive pulley (to net a stock ratio when paired with an aftermarket underdrive e-shaft pulley). It works for me though, since I still have my stock e-shaft pulley.

06-07-2011, 08:06 AM	#1
infernosg IT'S ALIVE! Join Date: Dec 2009 Location: Richmond, VA Posts: 811 Rep Power: 16	Too bad no one makes a smaller diameter alternator pulley (overdriven) to work with underdriven main pullies to maintain alternator output. I've been looking for a way to slow down the water pump for track use but also maintain alternator output for the few times the car sees street use. __________________ '86 Mazda RX-7 Base '79 Mazda RX-7 GS

06-07-2011, 09:42 PM	#2
jfaplanet Rotary Fanatic Join Date: Feb 2008 Location: Smyrna, TN Posts: 134 Rep Power: 18	Re-Speed http://mrcmfg.com/catalog/product_in...roducts_id=393

06-08-2011, 07:54 PM	#3
bah2792 The Newbie Join Date: Sep 2009 Posts: 10 Rep Power: 0	Pulley Type in Rx7 Pulley on ebay. There is a guy in Florida that sells OEM outside diameter pulley's with 2 belts. Got some for my car last year. They are in chrome and black. Just looked on ebay and they are there now.

06-08-2011, 07:56 PM	#4
Pete_89T2 Lifetime Rotorhead Join Date: Apr 2010 Location: Elkton, MD Posts: 874 Rep Power: 16	^ Using my stock S5 alternator pulley as reference, the Re-Speed pulley, at 2-5/8" diameter per their website is the same exact diameter as stock, so it wouldn't help infernosg, as he's looking for an overdrive pulley (to net a stock ratio when paired with an aftermarket underdrive e-shaft pulley). It works for me though, since I still have my stock e-shaft pulley.