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Thread: Staggered vs Square

  1. #11
    Join Date
    Nov 2016
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    Charlotte, NC
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    2,533
    235/40 is a little larger than OE 255/35 diameter. 245 puts you in a weird place where a 40 series would be way too large, and a 35 series would be undersized a bit. I like how the 235/40 fills the wheel well a little better and may try to fit 245/40 down the road, but I'm already fighting some rubbing so...

    Here's a calculator that I use

    http://www.rimsntires.com/specspro.jsp

    Edit: I searched around a bit and it looks like some people have run 245/40r18 without issue, so I'll definitely be looking into that for my next set of tires

  2. #12
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    Oct 2016
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    I have 245/40R18 PSS' on my ZHP with original springs, and I have no issues. It looks about an inch below the fender. The tire is closest to the strut spring seat--about 1/4".
    Last edited by Reasoned1; 06-25-2018 at 02:12 PM.
    2004 BMW 330i ZHP (50k miles), Jet Black with black leather, MFactory LSD (3.38) with Z4 cover, 18"x8.5" ET38 APEX Arc-8's (Anthracite) with 245/40 Michelin PSS', Koni Sports with factory springs and front and rear reinforcement plates, Shark Injector, Corsa TSE3 cat-back exhaust, TMS under-driven pulleys (water & steering), CDV delete, TMS CF strut brace, K&W CAI, GAS DISA rebuild, TMS pedals, Wheelskins steering wheel cover, roller tray center console, and WeatherTech floor and cargo mats

  3. #13
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    Nov 2016
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    Charlotte, NC
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    Quote Originally Posted by Reasoned1 View Post
    I have 245/40R18 PSS' on my ZHP with original springs, and I have no issues. It lookes about an inch below the fender. The tire is closest to the strut spring seat--about 1/4".
    That's good to know. I just installed a 3.38 diff in the car yesterday and it's too many rpm for me at 80mph, but I can't give up that fresh new torque, so a taller tire will drop the highway revs by 40-50 and fit my fat ass wheels better

  4. #14
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    My speedo is spot on with those tires, and I love the ride (the roads around here demand a little extra cushion). I, too, have the 3.38, and it's still torquey. Plus it fills out the wheel well that much more.
    2004 BMW 330i ZHP (50k miles), Jet Black with black leather, MFactory LSD (3.38) with Z4 cover, 18"x8.5" ET38 APEX Arc-8's (Anthracite) with 245/40 Michelin PSS', Koni Sports with factory springs and front and rear reinforcement plates, Shark Injector, Corsa TSE3 cat-back exhaust, TMS under-driven pulleys (water & steering), CDV delete, TMS CF strut brace, K&W CAI, GAS DISA rebuild, TMS pedals, Wheelskins steering wheel cover, roller tray center console, and WeatherTech floor and cargo mats

  5. #15
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    Nov 2016
    Location
    Charlotte, NC
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    Quote Originally Posted by Reasoned1 View Post
    My speedo is spot on with those tires, and I love the ride (the roads around here demand a little extra cushion). I, too, have the 3.38, and it's still torquey. Plus it fills out the wheel well that much more.
    Got any profile shots of the car with the taller tires?

  6. #16
    Join Date
    Jan 1970
    Location
    Lebanon, OH
    Posts
    37,876
    I'm on 245/40 w/ 10mm spacer in rear.

    I think the wheels are 18x8 ET45

    Sent from my SM-G955U using Tapatalk
    "Flame suit NOT REQUIRED!!!"
    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

  7. #17
    Join Date
    Jan 1970
    Location
    Southern California
    Posts
    16,859
    Square. I run 245/35 which a lot of people do. Mine are 18x8.5. Thinking of putting in small spacer in rear w my Apex EC-7 at ET 35.

    Sent from my SM-G955U 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
    ESS Stage 1 Twin Screw Supercharger, Sprint Booster, BMW Perf Intake, Magnaflow Exhaust, Dinan TB & STEP S/W, Ground Control Coilovers, UCC Sway Bars, Apex EC-7 18x8.5 ET38
    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

  8. #18
    Join Date
    Oct 2016
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    Quote Originally Posted by ZHPizza View Post
    Got any profile shots of the car with the taller tires?
    Here you go (sans any spacers--the rears could use one, but I'm not willing to complicate matters)...

    Name:  ZHP Profile Compressed.jpg
Views: 101
Size:  106.3 KB

    Name:  ZHP Wheel Well Compressed.jpg
Views: 104
Size:  54.9 KB
    2004 BMW 330i ZHP (50k miles), Jet Black with black leather, MFactory LSD (3.38) with Z4 cover, 18"x8.5" ET38 APEX Arc-8's (Anthracite) with 245/40 Michelin PSS', Koni Sports with factory springs and front and rear reinforcement plates, Shark Injector, Corsa TSE3 cat-back exhaust, TMS under-driven pulleys (water & steering), CDV delete, TMS CF strut brace, K&W CAI, GAS DISA rebuild, TMS pedals, Wheelskins steering wheel cover, roller tray center console, and WeatherTech floor and cargo mats

  9. #19
    Join Date
    Jul 2011
    Location
    Bellaire, TX
    Posts
    2,324
    i like the OEM staggered fitment but it appears i'm in the minority.
    --Wes--

    04 330i ZHP Oxford Green/Natural Brown
    04 330Ci ZHP Silvergrey/Alcantara (RIP)

  10. #20
    Join Date
    Jan 1970
    Location
    Southern California
    Posts
    16,859
    TIRERACK.com - Revolutionizing Tire Buying
    Staggered is there to promote understeer which is there to make it easier for the avg driver to control the car. Of course it's to the driver's preference as to what they are looking for.

    Sent from my SM-G955U 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
    ESS Stage 1 Twin Screw Supercharger, Sprint Booster, BMW Perf Intake, Magnaflow Exhaust, Dinan TB & STEP S/W, Ground Control Coilovers, UCC Sway Bars, Apex EC-7 18x8.5 ET38
    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

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