» Site Navigation | | » Recent Threads | | | | | | 02-03-2006, 11:43 PM | #1 | Senior Member Join Date: Dec 2005 Location: Asheville NC Posts: 669 | underdrive pulleys I know this has been asked before, but I didn't have success finding info in the search... Does anyone make underdrive pulleys that work on our cars? Are the m50/m52 ones compatible? I'm starting to check realoem to cross reference part #'s but not having much luck. | | | 02-04-2006, 01:19 AM | #2 | Senior Member Join Date: Oct 2004 Location: Tennessee Posts: 523 | As far as I know they don't make any.I'm interested if you find some. __________________ | | | 02-04-2006, 02:18 AM | #3 | aka Stabby Join Date: Nov 2004 Location: Mead, CO Posts: 5,336 | __________________ 1996 318ti, California package, 267k miles current mods: bilstein sports, bavauto springs, e30 m3 LCABs, solid metal ball joints, bavauto RSMs w/reinforcements, e30 3.73 LSD & halfshafts, supersprint cat-back exhaust, turner rear sway bar reinforcements, IE poly subframe & RTABs + camber/toe kits, powdercoated e36 32x front calipers, sport mirrors, H&R 28mmF/19mmR sway bars, x-brace, auto solutions SSK w/poly bushing upgrade, BMW CD43 head unit, DICE HD Radio w/iPod integration and "stealth" HD antenna, staggered style 68s, orange electronic TPMS, leather arm rest, JT Designs metal undertray acquired and awaiting install: heated seat kit, cali top switch relo, lumbar support kit, park distance control kit, heated washer nozzle kit, m-coupe rear subframe, trailing arms, differential, and halfshafts, m-coupe front/rear brakes with master cylinder, under hood light kit, mud flaps, rear sun blind, auto-dimming rear view mirror, tilt steering wheel retrofit, apexcone 5000K HIDs with 55W ballasts 2002 X5 4.4 Sport Package, 53.5k miles Current Mods: e46 m3 steering wheel | | | 02-04-2006, 01:42 PM | #4 | Senior Member Join Date: Dec 2005 Location: Asheville NC Posts: 669 | Quote: Originally Posted by cali-ti | that's the only thing I found when searching earlier. I'm guessing the story hasn't changed since then. I have a friend with a spare m50 in his garage, I'm going to head over there and compare/possibly swap pulleys to see if they fit. If so, then I'll try to get m50 underdrive pulleys. I don't have any way of testing the performance increase, I don't know how well tuned the butt dyno is for something like this. I'm convinced that this should be good for at least a few hp though. I'll keep everyone posted on my progress. | | | | Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | | Posting Rules | You may not post new threads You may not post replies You may not post attachments You may not edit your posts HTML code is Off | | | |