Materials to Maintain Your ZHP IIIII Hand Protection IIIII Tools to Maintain Your ZHP
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  1. #11
    Join Date
    May 2016
    Location
    Manassas, VA
    Posts
    64
    Quote Originally Posted by holyc0w View Post
    I don't think I've seen anybody note any issues with the underdriven alternator pulley. There are users that have had them for years and tens of thousands of miles. That said I went conservative and got the Rogue Engineering kit.
    This is the mystery for me. I read many people who express concern about the alternator pulley, but I have yet to find many stories from people who regretted doing it. Only a few stories from people who checked the voltage, but sound like they don't really understand what normal ops should look like. That said, since I'm not racing I probably won't miss it. Better safe than sorry.
    Rob

  2. #12
    Join Date
    Nov 2016
    Location
    Charlotte, NC
    Posts
    3,130
    Quote Originally Posted by JAZZHP View Post
    I already have the Turner set, minus the alternator pulley, in my shopping cart, but was looking for some other opinions. I have the stock HK sound system with no mods, and probably not planning any that would use more power, but I'm concerned about messing with the alternator. Should I be? I know there are other threads for this, so sorry for hijacking my own thread, but it's really about replacing my pulleys. I understand the alternator is designed to produce the required output regardless of the rpm, so as long as it can still do the job at a reduced rpm I should be okay with an underdrive pulley, but I want to be certain.
    I had the same unwarranted concerns and used the chat feature to talk with someone at Turner before ordering.

    He was like yeah dude no issues in the 20 years we've been using these ourselves and selling them to peeps.

    And I'm like...but what if...like...I'm chillin with my bixenons and blasting my stock HK system and I got both butt toasters on high because it's a party...

    And he's like dude...we live in the north...we ride or die by our butt toasters...no issues...

    So I ordered and installed the alternator​pulley and I think you know how many issues I've had.

  3. #13
    Join Date
    Jan 1970
    Location
    Liberty Township, OH
    Posts
    37,935
    Quote Originally Posted by JAZZHP View Post
    I bought the car about 12k miles ago and have never noticed anything change about it's operation. Definitely was planning this ASAP, but now it's urgent. Hard to believe it lasted this long. I guess my tensioners are really working well. Last question... any thoughts on underdrive pulleys? I've read alot lately and I'm torn. Leaning toward stock as I don't track the car, but the kits are slick.

    Sent from my SM-G930T using Tapatalk
    Unbelievable. First time I've seen an e46 function like this. PO had to have known.

    Sent from my Pixel XL using Tapatalk
    Call Me Dane l 2/2004 330i ZHP l 18x8 ET45 BBS CK's wrapped with Michelin Pilot Sport AS3+ @ 245-40-18 l KW V1 Coilovers in front l KW V1 springs w/ Bilstein B8 dampeners in rear l BMW Performance Rotors l UUC StrutBarbarian l Racing Dynamics Rear Strut Bar l Jim Conforti Shark Injector l Light Birch Interior Trim l Bimmian Celly Mount l M3 Trunk Mat l l e90 Performance E-Brake & Shift Knob l M3 Tri-Stitched Boots l AL Headlight Retrofit with ZKW Lenses l CobyWheel Wrap w/M3 Stitching l LCM sw 4.5 triple blink and rear fogs l Maple Interior Trim

  4. #14
    Join Date
    May 2011
    Location
    Charleston SC
    Posts
    6,149
    One would think that the plastic pulley would of exploded under speed, damaging other components. I'd have a good look around to make sure nothing else is damaged
    Dinan CAI &Throttle body, ESS Tuning TS2, Bimmerbrakes gen3 headers, UUC SSK & DSSR. Achilles oil pump, VAC oil pan baffle
    M3 Motor mounts, UUC Trans mounts, Modified clutch style LSD 3.15, TMS front subframe reinforcement, Koni Yellow sports,
    H&R sport springs,
    UUC sway bars, BMW Perf. Rotors, UUC SS brake lines, Hawk HPS pads, CSL replica wheels,
    Rotora strut bar, FXR HID conversion, M3 Mirror conversion, BSW stage 1 speakers

  5. #15
    Join Date
    Jan 1970
    Location
    Southern California
    Posts
    18,064
    Wow. Glad it's been ok so far. I hv the underdrive pulleys, no issues... but I hv to look to see if I did the alternator as I don't recall.

    Sent from my SM-G935V using Tapatalk
    Randeaux/Rando/John/jr - '06 Cic ZHP; Southern California
    "ZHP or not, I still like you"


    ZHP Performance Package, Cold Weather Package, Leather, Jet Black/Black/BlackCube, NAV, Anthracite Black "my individual" interior trim
    ESS Stage 1 Twin Screw Supercharger, Sprint Booster, BMW Perf Intake, Magnaflow Exhaust, Dinan TB & STEP S/W, UCC Sway Bars, Apex EC-7 18x8.5 ET38
    Suspension: AST 44100 dampers, Bimmerworld front adjustable end links, Swift springs (8K front, 10K rear), Vorshlag camber plates
    Dynavin D99+, Hardwire V1 (w/V1 Connection), BSW Stage 1 Speakers, Kicker Amp/Subwoofer
    BMW Performance Strut Brace, Orion V2 Angel Eyes, No-holes License Plate, SMG Paddle Shift Mod, Besian VANOS, Gold DISA, Fan Delete, M3 Side Mirrors
    Note: Actual car no longer resembles signature picture

  6. #16
    Join Date
    Jun 2011
    Location
    Redondo Beach, CA
    Posts
    1,944
    I've got underdrive including the alternator and I don't notice any V dip even when operating the top at idle.
    2006 CiC 6MT
    ZHP, Cold Weather, Xenon
    Sapphire Black / Black Leather / Black Cube

  7. #17
    Join Date
    Nov 2014
    Location
    Portland, OR
    Posts
    10,244
    All you people are making me consider TMS pulleys.

    Be still my hemorrhaging wallet...

  8. #18
    Quote Originally Posted by BMWCurves View Post
    All you people are making me consider TMS pulleys.

    Be still my hemorrhaging wallet...
    +1
    I've looked at that kit about 5 times since yesterday


    Sent from my iPhone using Tapatalk


    2006 Coupe | Black Sapphire Metallic | Natural Brown | Gruppe M Intake | Corsa TSE3 | Michelin PSS on Apex ARC-8 | Koni Yellows |

  9. #19
    Join Date
    May 2016
    Location
    Manassas, VA
    Posts
    64
    Thank you all for the feedback regarding the alternator pulley. I trust you guys and am now planning to include it in my TMS order. They were having web site issues last night so I couldn't place it. BTW--I know this may seem like sacrilege to the BMW purist, but Autozone is offering a 20% discount on all online orders shipped to your home right now. I know that because I learned the Duralast tensioner pulleys are made by the same company that makes the OEM ones (INA), so I ordered those. Can anyone either confirm or deny this? Plus spark plugs (NGK BKR6EQUP) , trans filter & gasket, and an expensive part for my Expedition--saved a bunch of cash.
    Rob

  10. #20
    Join Date
    May 2016
    Location
    Manassas, VA
    Posts
    64
    Quote Originally Posted by danewilson77 View Post
    Unbelievable. First time I've seen an e46 function like this. PO had to have known.

    Sent from my Pixel XL using Tapatalk
    Dane, I bought it from a dealership, who bought it back from the original owner. It has passed two VA safety inspections since then, and been through my local dealership's "multi-point vehicle inspection" twice, most recently just last week, without anyone noticing. I can't say for certain that I bought it like this, but the rust on the bearing tells me it's been this way for quite a while.

    While I've got your attention, I know you've posted extensively about 100k (or 60k) preventive maintenance, so here's what I'm doing. Step 1 (right now): all pulleys/tensioners/belts; water pump (Graf); thermostat (Wahler); expansion tank/cap (Behr); level sensor (Meyle); AT thermostat; fan clutch (Behr); OFHG (Viton); spark plugs (BKR6EQUP); power steering reservoir (have a ZF left over from my E36 project), and fuel filter (Mann). Step 2 (soon): AT fluid/filter; diff fluid. Step 3 (before summer): VANOS; DISA; CCV; intake boots/vacuum lines. I did brakes/rotors & fluid last fall. My radiator and hoses still look flawless--no dryness/cracking/bulging, so I'm willing to let them roll for a bit longer. I ordered a new valve cover gasket set, so I may include that in step 1. Did I miss anything important?
    Rob

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