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05-12-2014, 06:34 PM | #1 |
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Need advice on tires for 20" zito zs05
Hey guys, so I got new rims from Zito, 20 inch zs05's in satin black. I need some help on the tires I should get for it, i asked some people already but Im getting numbers that vary so I thought Id give this a shot.
20x9 et22 and 20x11 et30 are the specs for the rims. Zito says I should run 255 30 20 and 305 25 20, or 245 30 20 and 305 25 20 Would this be too wide for my setup? I have H&R sport springs that Im going to be dropping on the car when I install the rims, so Im aware that it might rub the fenders, so im going to have to roll the fenders according to my shop. Also, I do have a 4.6 stroker so I am fine with going wider in the rear, but not unnecessarily wide. Any help would be appreciated thank you. |
05-12-2014, 06:48 PM | #2 |
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1 - Zito wheels? There are far better wheels available. I hope someone didn't convince you that these are high quality wheels. Stick with BBS, HRE, Volk, OZ... etc. I wouldn't consider Zito wheels for a second. Especially considering you dropped $25k on a stroker motor; why run mediocre wheels?]
2 - I wouldn't recommend 20's on a M3 if you care about performance. I have had 20's, 19's, and 18's. I run 18's now because the tire sizing, tire availability (for high quality tires with good grip), and performance are best with 18's. 19's are also great. 20's not so much. You are forced to run large tire width stagger (you are considering 50mm to 60mm stagger when most people try to go the other direction (20mm or less)). Your sidewall is so short that it negatively impacts performance, ride quality, and pothole protection. Lastly you are limited on tire brand/model availability. 20's are just not a good fit for the M3 because the car's overall tire diameter is not conducive to it. 20's are good on a GTR or 991 Porsche because they were designed for that diameter (and have tire side wall height equivalent to running 19's on an M3). On top of it all 20's look too large on the car; leaving no upside. 3 - There is no fender to roll on a M3. I would switch to a shop that is familiar with the car; especially if this is the shop that suggested Zito wheels. 4 - I would choose the tallest tire possible which is the 255/30/20 front and 305/25/20 rear. The 255/30 sidewall is very short and the 245/30 is even shorter... You should be able to fit those sizes without rubbing. I ran those sizes in Pirelli P-Zero's on my car with Eibach springs (20x9 et20 and 20x11 et29). I know I sound harsh but I have been down the same road as you... and learned my lesson. 20's aren't the answer on this car. I at least did it with forged Volk's that weighed 24 lbs. You will be lucky if your Zito wheels are under 28lbs.
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05-12-2014, 07:03 PM | #3 | |
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1. I like the BBS FI look, I don't have the cheddar currently to buy BBS FI's. Closest thing - zito zs05. And they only come in 20's :| I really admire the look. Nobody convinced me that these are high quality wheels, but I'm seeing these wheels on m5's, lambos, porsches, ferraris, gtr's and maseratis so they can't be too terrible.. 2. I am familiar with what I am getting myself into by going 20 instead of 19 or 18. Its a sacrifice I'm willing to make for the aesthetic gain. Considering I have extra power, I'm not too worried about performance losses. My 19 inch VMR's looked like 18's which I fucking hated, so I'm going all out and getting 20's just because it looks so much nicer IMO. I've read up on threads on this forum where people have said they haven't felt much of a difference after going 20 compared to 19, performance wise or suspension harshness wise. Also, I already purchased the wheels so no turning back now, I just need to know what width tires to get that will be ideal. 3. I should be more specific. My car is in the process of getting wrapped now, and I was told that because of the 20's it might touch the wrap on the fender and cause it to peel or come off when driving. I'm not sure what you mean by there is no fender to roll. Wouldn't the tires rub on the inside of the fender? Perhaps I used the wrong terminology, I'm not sure. thanks for your input bro, but I still need to know what tire width to go. I know I seem ill informed by going 20's and zito's, but I'm not a track star and Im not too concerned about ride quality. So Im aware of the consequences of doing this -edit: almost missed your 4. So sounds like 255/30/20 front and 305/25/20 rear might be the winner. I'm going to look for a few more opinions, if they match up then I guess im going with that! Thanks Last edited by Xx__xs; 05-12-2014 at 07:12 PM.. |
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05-12-2014, 07:16 PM | #4 |
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good attempt at help slicer, unsure about a stroker, race lip and 20s. why build a motor if you dont care about performace loss with the wheel and tire set up?
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05-12-2014, 07:23 PM | #5 | ||||
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05-12-2014, 07:23 PM | #6 | |
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Why did I get a stroker? There are reasons. Reasons which I am not really obligated to go into right now considering this is not about my stroker but about what tires to get. I appreciate your interest and curiosity, but as I said a few times already, I am fine with losing performance for aesthetics. If I wanted a drag racer with uber performance, I would have gotten a spartan performance package e92 m3 and supercharged with 18's. Hell, I wouldve gotten a c63 lmao. But no I got an e93 , Im fine with the added weight, and im fine with adding more weight on the rims. The strokers extra noise, extra torque, and marginal exclusivity make me happy enough |
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05-12-2014, 07:31 PM | #7 |
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okay, just thought the focus of your car is contradictory. why add power to intentionally take it away? if the power doesnt matter why add it to start? you are right you can do whatever you want even if it follows no rhyme or reason. slicer is a good guy and just trying to help you out.
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05-12-2014, 07:32 PM | #8 | |
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I spin tires like a crazy person with my current 19's 245/265...so im not exactly putting power down all too efficiently lol. And again, if you knew the details of why and how I got my stroker you would understand a bit more. But im not interested in getting into it. And 20's looking oversized at any ride height, im going to have to disagree with. I'm ok with being the dbag running 20's top down with a stroker. I really am. Hmm, thats interesting. I didnt know there isnt a lip inside of the fender. I'm going to bring that to my shops attention as they specifically informed me that there is a lip. Im surprised though because they have at least 7 other modded m3's at their shop. I wonder if it was a miscommunication or a lack of knowledge - concerning. |
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05-12-2014, 07:34 PM | #9 | |
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05-12-2014, 07:39 PM | #10 |
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That's why I run wider wheels (9.5" or 10" front, 10.5" or 11" rear) with 275's in the front and 295's in the rear with sticky extreme performance tires on 18's (I have also ran the same sizes on 19" wheels). No grip issues for me.... Plus you are adding more understeer with a 50mm+ stagger but you won't notice that if you don't push the car hard in the corners.
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05-12-2014, 07:47 PM | #11 | ||
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05-12-2014, 08:24 PM | #12 | |
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sapphire black e93 335i |
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05-13-2014, 09:33 AM | #13 |
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That depends on what tire sizes you choose... Suspension settings.... And no understeer at all would best be achieved with square wheels and tires. Suspension settings are also a significant factor in determining your car's handling characteristics.
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05-13-2014, 01:43 PM | #14 |
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I'm going to be on 245 35 19 hankook rs3 and rear 275 35 19 rs3 stock suspenssion
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05-13-2014, 03:57 PM | #15 |
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You are increasing the front to rear stagger by 10mm from OEM. This in theory would increase understeer - assuming all else remains equal. As I previously stated, your suspension settings are also a significant factor. The change will not be drastic and you will only notice at the limit.
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05-30-2014, 08:49 PM | #17 |
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bravo dont look like 20s still have tons of wheel gap.
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05-31-2014, 02:06 AM | #18 |
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05-31-2014, 03:36 AM | #19 | |
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