Materials to Maintain Your ZHP IIIII Hand Protection IIIII Tools to Maintain Your ZHP
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  1. #91
    Join Date
    Apr 2016
    Location
    Katonah, NY
    Posts
    771
    OP i hope you don't mind me asking this in you thread but it seems like this is a good place to ask any arc-8 fitment questions. I would like to do a square set of 18x 8.5 with an et of 38 on stock suspension. Is 38 too aggressive of an offset or can i get by without having to roll the fenders?

  2. #92
    Join Date
    Nov 2014
    Location
    Portland, OR
    Posts
    10,243
    Quote Originally Posted by joeybananaz18 View Post
    OP i hope you don't mind me asking this in you thread but it seems like this is a good place to ask any arc-8 fitment questions. I would like to do a square set of 18x 8.5 with an et of 38 on stock suspension. Is 38 too aggressive of an offset or can i get by without having to roll the fenders?
    I could be wrong, but I believe there are a handful of members here who use 18x8.5" ET38 APEX ARC8s without needing to roll their fenders and do not have rubbing issues.

  3. #93
    Join Date
    Oct 2016
    Location
    Vermont
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    588
    I just installed a set of 18x8.5 Arc-8's (ET38) with 245/40 PSS' (which have slightly larger diameter than stock) on a 2004 ZHP with stock suspension, and there is PLENTY of room relative to fenders, wheel well, and suspension. The car is definitely lighter on it's feet and handles like a dream. Incidentally, I have a set of 17's (everything else the same except ET40) on my 2005 330xi 6MT (sport), and they, not surprisingly, fit fine too.

    I was surprised at how much tramlining is reduced from the standard, staggered setup.

    Name:  New Wheels Apex Arc-8 18x8.5 Medium.jpg
Views: 1797
Size:  1.41 MB
    Last edited by Reasoned1; 05-29-2017 at 06:00 PM.

  4. #94
    Join Date
    Feb 2014
    Location
    Kitchener, ON
    Posts
    6,036
    Quote Originally Posted by Reasoned1 View Post
    I just installed a set of 18x8.5 Arc-8's (ET40) with 245/40 PSS' (which have slightly larger diameter than stock) on a 2004 ZHP with stock suspension, and there is PLENTY of room relative to fenders, wheel well, and suspension. The car is definitely lighter on it's feet and handles like a dream. Incidentally, I have a set of 17's (everything else the same except ET38) on my 2005 330xi 6MT (sport), and they, not surprisingly, fit fine too.
    those are either ET38 or ET45, which did you get? they don't make an ET40.

    just curious why you went to a 245/40/18? those are almost an entire inch larger than stock.

    they look great, by the way!
    peter

    2004 330i ZHP
    2005 330iT ZHP
    2010 328iT M Sport

  5. #95
    Join Date
    Oct 2016
    Location
    Vermont
    Posts
    588
    And you are correct--they are ET38. I think I got my 18's and 17's mixed up. I went with 18's because they look better and were on sale ($200 off the set). I wanted a square set-up and didn't quite dare to go with 255's in the front--and I'm glad I didn't because, with ET38, the 245's are perfectly flush with the fender. I wasn't terribly excited about the performance trade-off of going slightly larger, but I wanted to fill the wheel well a bit more, and I have no plans to lower the suspension. I also wanted to offset the error in my speedo, which this largely does. Finally, I'm not a racer, and I live in Vermont, so having a wee bit more tire wall with lightweight wheels seemed prudent to me. All in all, for my situation, I couldn't be happier. By the way, the reduction in unsprung weight of more than 40 pounds has more than made up for the slight increase in diameter--she's definitely quicker than she was.

  6. #96
    Join Date
    Feb 2014
    Location
    Kitchener, ON
    Posts
    6,036
    Quote Originally Posted by Reasoned1 View Post
    And you are correct--they are ET38. I think I got my 18's and 17's mixed up. I went with 18's because they look better and were on sale ($200 off the set). I wanted a square set-up and didn't quite dare to go with 255's in the front--and I'm glad I didn't because, with ET38, the 245's are perfectly flush with the fender. I wasn't terribly excited about the performance trade-off of going slightly larger, but I wanted to fill the wheel well a bit more, and I have no plans to lower the suspension. I also wanted to offset the error in my speedo, which this largely does. Finally, I'm not a racer, and I live in Vermont, so having a wee bit more tire wall with lightweight wheels seemed prudent to me. All in all, for my situation, I couldn't be happier. By the way, the reduction in unsprung weight of more than 40 pounds has more than made up for the slight increase in diameter--she's definitely quicker than she was.
    sounds like good reasoning to me. i can definitely attest to wanting the extra sidewall in VT, i spent 10 years traversing its roads.... and i continue to do so when i get the chance!

    i have the same wheels and tires, only the tires are 245/35/18's. i will probably be going to a staggered setup of ARC-8s next, with 235/40/18's up front and 265/35/18's in the rear.
    peter

    2004 330i ZHP
    2005 330iT ZHP
    2010 328iT M Sport

  7. #97
    Join Date
    Apr 2016
    Location
    Katonah, NY
    Posts
    771
    Quote Originally Posted by Reasoned1 View Post
    I just installed a set of 18x8.5 Arc-8's (ET38) with 245/40 PSS' (which have slightly larger diameter than stock) on a 2004 ZHP with stock suspension, and there is PLENTY of room relative to fenders, wheel well, and suspension. The car is definitely lighter on it's feet and handles like a dream. Incidentally, I have a set of 17's (everything else the same except ET40) on my 2005 330xi 6MT (sport), and they, not surprisingly, fit fine too.

    I was surprised at how much tramlining is reduced from the standard, staggered setup.

    Name:  New Wheels Apex Arc-8 18x8.5 Medium.jpg
Views: 1797
Size:  1.41 MB
    Quote Originally Posted by BMWCurves View Post
    I could be wrong, but I believe there are a handful of members here who use 18x8.5" ET38 APEX ARC8s without needing to roll their fenders and do not have rubbing issues.
    Thanks for that info guys. I'm coming from an E92 so i need to learn about a whole bunch of new offsets now. Have not picked up anything just yet but its never too soon to plan for new wheels!

  8. #98
    Join Date
    Oct 2016
    Location
    Vermont
    Posts
    588
    Keep an eye out for sales (especially towards Christmas) and group buys.

  9. #99
    Join Date
    Dec 2015
    Location
    SF Bay Area
    Posts
    314
    Apex expects another group buy around the September/November time frame.

    Sent from my SM-G930F using Tapatalk
    2007 BMW Z4 M Coupe | Interlagous Blue | Maritime dash and console trim | 6MT
    UUC short shifter, Euro cats, CSL Euro headers, Evolve CSL Intake and tune, TC Klein Smart Design Double Adjustable Coilovers, Dinan strut brace, CDV Delete, ZHP shift knob, Arkym splitter and spoiler, WPC Bearings, ARP rod bolts, Apex Arc-8, VAC Pump Upgrade, Bluebus

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