Materials to Maintain Your ZHP IIIII Hand Protection IIIII Tools to Maintain Your ZHP
Page 3 of 5 FirstFirst 12345 LastLast
Results 21 to 30 of 50
  1. #21
    Quote Originally Posted by Hornung418 View Post
    Yes the gearing is about the same in the M3 and the stock ZHP. Throw a 3.62 LSD in there you'll be at 56mph in 2nd gear and not even 85 in 3rd...you should be able to hit 102 in 3rd gear with the 3.07 and a 7000rpm red line...which is pretty incredible on the track.

    Michele, your car is S/C'd so I wouldn't worry about doing the M3 rear end swap, just build the 3.07 or get a 3.38 or 3.46 built into an LSD.
    Assuming you have a 7000rpm red line with the S/C software and 255/35ZR18s out back:

    With the 3.07 LSD, speed in 3rd is theoretically 102.27 mph - Cruising at 74mph (9mph over 65 mph speed limits) is at 2593 rpm.
    With the 3.38 LSD, speed in 3rd is theoretically 92.89 mph - Cruising at 74mph (9mph over 65 mph speed limits) is at 2855 rpm.
    With the 3.46 LSD, speed in 3rd is theoretically 90.74 mph - Cruising at 74mph (9mph over 65 mph speed limits) is at 2923 rpm.
    With the 3.62 LSD, speed in 3rd is theoretically 86.73 mph - Cruising at 74mph (9mph over 65 mph speed limits) is at 3058 rpm.

    Sorry...I am quite bored with this English paper LOL...Hope these calculations can be of help.

    http://www.bokchoys.com/differential...calculator.htm
    It mind bottling how much info you know lol.

    I have done doughnuts before but I require snow for mine to accomplish them! That's a cool pic though.

    "I don't care if the door gaps are straight. When the driver steps on the gas I want him to sheet his pant's." Enzo Ferrari

  2. #22
    Join Date
    Jan 1970
    Location
    Branford, CT
    Posts
    16,055
    Quote Originally Posted by Katu View Post
    I thought the Quaife diffs were only around $1300? Am I wrong?
    Nope. Try closer to $3-5k.


    Sent from my iPhone 4S from Tapatalk
    BP
    2005 330i ZHP / 6MT
    Imolarot / Naturbraun
    2003 330iT / 6MT
    Orientblau / Naturbraun




    It's not the car you drive, it's how you drive it.

  3. #23
    Join Date
    Jan 1970
    Location
    Southern California
    Posts
    18,064
    Quote Originally Posted by Hornung418 View Post
    Yes the gearing is about the same in the M3 and the stock ZHP. Throw a 3.62 LSD in there you'll be at 56mph in 2nd gear and not even 85 in 3rd...you should be able to hit 102 in 3rd gear with the 3.07 and a 7000rpm red line...which is pretty incredible on the track.

    Michele, your car is S/C'd so I wouldn't worry about doing the M3 rear end swap, just build the 3.07 or get a 3.38 or 3.46 built into an LSD.
    Assuming you have a 7000rpm red line with the S/C software and 255/35ZR18s out back:

    With the 3.07 LSD, speed in 3rd is theoretically 102.27 mph - Cruising at 74mph (9mph over 65 mph speed limits) is at 2593 rpm.
    With the 3.38 LSD, speed in 3rd is theoretically 92.89 mph - Cruising at 74mph (9mph over 65 mph speed limits) is at 2855 rpm.
    With the 3.46 LSD, speed in 3rd is theoretically 90.74 mph - Cruising at 74mph (9mph over 65 mph speed limits) is at 2923 rpm.
    With the 3.62 LSD, speed in 3rd is theoretically 86.73 mph - Cruising at 74mph (9mph over 65 mph speed limits) is at 3058 rpm.

    Sorry...I am quite bored with this English paper LOL...Hope these calculations can be of help.

    http://www.bokchoys.com/differential...calculator.htm
    Good info, thanks for posting.
    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

  4. #24
    Join Date
    Feb 2011
    Location
    Santa Rosa, CA
    Posts
    175
    Quote Originally Posted by az3579 View Post
    Nope. Try closer to $3-5k.
    Oh snap, my bad!

    I know there are different types of LSD, each with their advantages and disadvantages.. but it sounds like even with all the extra parts involved with the M3 diff swap, that is still the cheapest option?

    Maybe I should just get a 3.46 or 3.38 open diff and save a bunch of money.

  5. #25
    Join Date
    Mar 2011
    Location
    Baltimore, MD
    Posts
    6,940
    While the 3.62 is the cheapest...It's not the ideal swap.

    BMW LSDs are also on the weak side...not a lot of lock up. Aftermarket is definitely the way to go if you want the best setup in a Non-M.
    Porsche 944 Turbo Build

    One ride and you'll understand why most rocket scientists are German.

    My ZHP Build 2004-2014 RIP


  6. #26
    Join Date
    Dec 2011
    Location
    Etobicoke, Ontario
    Posts
    225
    I want an LSD more than anything. 4k is a huge amount of money for two wheel peel though.

  7. #27
    Join Date
    Feb 2011
    Location
    Santa Rosa, CA
    Posts
    175
    I had no idea the m3 diff was 3.62, that seems like a bit much even with a 6 speed.

  8. #28
    Join Date
    Mar 2011
    Location
    Baltimore, MD
    Posts
    6,940
    Quote Originally Posted by Katu View Post
    I had no idea the m3 diff was 3.62, that seems like a bit much even with a 6 speed.
    Yes...quite the jump in ratio...If you had an automatic, it wouldn't be that bad, I might add, but you would have to address the drive shaft as they are completely different in terms of length and flange shape.
    Porsche 944 Turbo Build

    One ride and you'll understand why most rocket scientists are German.

    My ZHP Build 2004-2014 RIP


  9. #29
    Join Date
    Jan 1970
    Location
    Cleveland/Dayton
    Posts
    2,620
    Quote Originally Posted by Katu View Post
    I had no idea the m3 diff was 3.62, that seems like a bit much even with a 6 speed.
    1st gear is really short...and stupid short.


    Project STX: TCKline Racing l APEX l Vorshlag l Eibach l Hawk l Schroth l BMW Performance

  10. #30
    Join Date
    Sep 2011
    Location
    North Jersey
    Posts
    686
    Quote Originally Posted by SoarinZHP View Post
    Too bad BMW thinks we are not worthy things like LSD's.
    What's funny is my mini has a factory LSD. Apparently BMW thought a fwd hatchback should have one over their own best selling model. Go figure
    2006 MINI Cooper S SOLD
    http://www.zhpmafia.com/forums/showt...-MINI-Cooper-S
    2006 ZHP 330CiC



Page 3 of 5 FirstFirst 12345 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •