04-16-2019, 08:14 PM | #1 |
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265/285 - Can it be done?
Searched around the forum but couldn't find a clear answer on this.
I have an M2C that will be tracked 5-8 times a year that I am looking to lower probably 15-20 MM with either KW V3s or BMW coilovers and camber plates. Partly for the potential for improved performance but if I'am honest with myself, mostly because I like the look . I know on a stock car t 265/35s MAY rub the fender liner under hard compression, I want to know if anyone has experience running 265s on the front of a lowered car without going beyond -2 camber up front? I hate the stretched tire look and my dream is to run 265/35 up front with 285s or 295s in the back on cup sports whilst maintaining a 35 aspect ratio, can it be done? |
04-16-2019, 08:34 PM | #2 |
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You’ll rub, but it’s just a cpl mm. It goes away after you wear a cpl mm off the tire or fender liner.
More importantly, a 265 vs 255 on the stock 9” front wheel won’t gain you a quicker time on track and makes turn in slow and lazy. And, 295/35 in the back is a no go if you’re lowered. 285/35 only works with a max of about a 17-20mm drop. 255/285 is the way to go for 35 series tires on a lowered M2 and the stock wheels. |
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chief1richard381.00 eatingpizzainthef87rules253.00 |
04-17-2019, 12:50 AM | #3 | |
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/30 fits perfectly. At least with mps4s |
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04-17-2019, 07:23 PM | #4 | |
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I think I'll go with the 255/285 as ZM2 suggested, creeped his prior posts and it seems like he knows his sh*t. |
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ZM22810.50 JackyStuntin154.50 |
04-17-2019, 07:25 PM | #5 | |
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Also, I do use 30 series tires for the track, but 35 for the street. Here’s my pros/cons list bn 255/285/35 vs 265/295/30 or 305/30 for the street: 255/285/35 - Quieter, more comfortable, better wet grip, better acceleration (longer contact patch), better looks (less fender gap), better curb protection, more flickable at lower speeds. 265/295/30 or 305/30 - Better lateral grip (wider contact patch) What do you guys think? Last edited by ZM2; 04-17-2019 at 08:53 PM.. |
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04-17-2019, 08:21 PM | #6 | |
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Also where I live and spend most of my time is intensely urban so I often have to park by a curb or come across shitty roads that regularly scrape my rims. That's why I wanted the 265s the extra rubber and less of the stretch will help protect my rims. I came up in the late 90s early 00s so I absolutely hate the stretched look and less wheel gap is always favorable. I have to check out the next M4 I see to see what the stretch on the front looks like, I don't think there is any. |
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04-17-2019, 08:52 PM | #7 | |
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The turn in feel won’t be as good as a 255 on a 9” wheel, but you’ll get less stretch and the more curb protection you’re looking for in the city. I just ordered a new PS4S set bc my rears are toast, but my front 265s have 1/3 life left. I’ll swing you a deal if you want to try them, but shipping to BC may not be pretty. |
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04-19-2019, 11:11 AM | #8 | |
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04-19-2019, 11:31 AM | #9 | |
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For the rear, I’d go as wide as you can fit so you can put maximum power down out of the corner. That means 285-305 depending on wheel offset and suspension setup. F/R series differences doesn’t really matter. The general rule is you want a tire in the rear that has a slightly larger diameter and sidewall measurement. That way, the DSC doesn’t get upset. If you run with DSC off you can run whatever sizes you want, but I’d still try to stick to that rule so handling balance doesn’t get too out of whack. As an example, when I run R7s or 71Rs, I get a 265/35/19 for the front and 295 or 305/30 for the rear. The 305/30 has almost the same heights as the 265/35, but the 295/30 is a little too short. It works fine tho, bc I run with DSC off. |
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04-19-2019, 11:50 AM | #10 | |
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Street Bike: Honda Grom. Track Bikes: 02 SV650/09 R6 "It is a shame for a man to grow old without seeing the beauty and strength of which his body is capable" |
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04-19-2019, 12:07 PM | #11 |
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04-19-2019, 12:07 PM | #12 | |
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04-19-2019, 12:11 PM | #13 | |
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285s work fine on a 10” wheel, so I’d go 10.5”. What offset are you looking at? 11” in the back is doable but makes fitment more complicated than necessary. I wouldn’t do more than 10.5” in the rear on the M2. |
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chief1richard381.00 |
04-19-2019, 12:21 PM | #14 |
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Thanks, probably not more extreme than FI-R' 22/35 offset, so this offset would be on the brink of rubbing I suppose.
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04-19-2019, 12:25 PM | #15 |
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04-19-2019, 01:12 PM | #16 | |
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04-19-2019, 01:22 PM | #17 | |
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295/305/30/19s and a lowered M2 requires +40-45 offset, depending on alignment settings, but those tires are taller than 18s. |
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04-20-2019, 11:15 AM | #18 | |
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https://f87.bimmerpost.com/forums/sh...1#post24650301 |
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04-25-2019, 11:28 AM | #19 | |
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I have a small dime sized mark/cut on the rim protector on my front passenger tire. It looks completely safe but I'm worried about passing tech inspection, we'll see when we get there, I got a autox event before a two day track training event in June, hopefully if it's bad enough to be replaced I find out then. |
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04-25-2019, 02:36 PM | #21 |
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04-25-2019, 05:27 PM | #22 |
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I just got my 255 4S’s in and the rain channels are much wider than the 265s. So, less lateral grip than the 265s, but better in the rain.
I use my 4S as a street tire and wet track tire, so that’s a good trade off for me. Should make turn in feel better on the stock 9” wheel, as well. |
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