Summit Racing underdrive?
07-22-2008, 09:39 PM
#41
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I did not get even close to a tenth off. I'm thinking the high density altitude and the humidity that day had something do with it. Albuquerque, I mean Altitude sucks.
07-27-2008, 05:41 PM
#43
Used a three jaw puller and some various metal piece to pull the stocker off. Probably should have bought that tool being sold here to put them on but used a block of wood and a lead hammer to get it started enough to use the old bolt to pull it on. It has deeper grooves for belt retaining. So far A/C and volts don't seem changed at all. Can't really feel a SOTP difference but a little bit. Long tubes are next then to the track to see what I gained.
07-27-2008, 09:43 PM
#44
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I just ordered mine yesterday, got the UD Pulley, AC belt, and crank bolt for $159 shipped since I had a $30 off coupon. Just gotta pick up the other people and install it, can't wait! Not expecting a HUGE gain but I am just trying to do as many smog legal mods as I can and keep myself busy. Maybe I'll even pick up some MPG.
07-28-2008, 10:33 AM
#47
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I will track MPG also. My driving is pretty consistent since I really only use the car to drive to and from work (city driving, 20 miles round trip) and averaged 18MPG the last 3 fill ups.
07-28-2008, 04:12 PM
#48
Seems like a nice peice. How would this be though with a audio system? When I get around to putting it back in, I don't want any negative effects with the UD pully. I have two alpine type R's, 12's, and two kenwood amps (forgot the model). Thank you.
07-28-2008, 04:59 PM
#49
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If you have a problem with the UD Crank Pulley and your audio system you could add the overdrive alternator pulley (15% OD i believe), so you would still have 25% less water pump drive, 25% less power steering drive, and only ~13.5% less alternator drive (all percentages compared to stock)
07-28-2008, 05:51 PM
#50
If you have a problem with the UD Crank Pulley and your audio system you could add the overdrive alternator pulley (15% OD i believe), so you would still have 25% less water pump drive, 25% less power steering drive, and only ~13.5% less alternator drive (all percentages compared to stock)
