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Old 05-07-2013, 12:21 PM   #1
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wheels and performance

is it true that the bigger the wheel the slower your acceleration will be? I have 18s n thinkin bout the RTR 19s? how much slower will I be with the 19s? thanks
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Old 05-07-2013, 01:00 PM   #2
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is it true that the bigger the wheel the slower your acceleration will be? I have 18s n thinkin bout the RTR 19s? how much slower will I be with the 19s? thanks
It's not a giant difference but you also have to think about tire price, 19inch tires are ridiculous, you'd be better off getting more 18's or jumping to 20's
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Old 05-07-2013, 01:43 PM   #3
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If you run 20's, you should consider larger brake discs, as the stock ones will look silly behind a 20 inch rim.

It's all proportional. You can go with a 19 inch rim, and a smaller side height tire to make it the same (or very close) total circumference of an 18 inch rim with a higher side height tire. If you take what you currently have rim and tire wise, plug it into this link as "what are you running now", then play with a 19 or 20 inch rim and tire combo as "what would you like to run", you might be able to keep the MPH very close; just be realistic with the width, and stay with a 255/40 (or 255/45) tire for a stock 8 or 8.5 inch wide wheel. Anything wider than 255 gets you into wheel rub boundries on the fronts without going with spacers or offset wheels. Some say they have gone to 305's on the rears using non offset wheels or using spacers. It's the front wheels you have to be concerned about:

Tire Dimensions Made Simple - Discount Tire
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Old 05-07-2013, 02:09 PM   #4
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I wanna chime in on this. I'm running 255/45/18 on TSW 8.5's am I pushing it?
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Old 05-07-2013, 04:02 PM   #5
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I wanna chime in on this. I'm running 255/45/18 on TSW 8.5's am I pushing it?
Not at all!

I used to have 235/40/18's on a set of stock GT wheels. I now have 255/45/18's as you have. You can safely mount these tires on 8 inch to 8.5 inch wide rims. If you had a 9 inch rim, you'd want to go wider than 255's, as the sidewall bead would have problems staying sealed on hard cornered turns. Then the problem of rubbing comes into play for the front tires. Getting wider that 255 can be done in the front, but you start thinking of spacers or staggared offset rims to be safe. But too wide and staggered offset or spacers make the wheel stick out, and possibly rub on the fender edge. I'm sure others will chime in, and I expect this thread to turn into a tire/wheel combo post!

But your 255/45/18's are just fine with 8.5 width wheels.
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Old 05-07-2013, 04:07 PM   #6
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I have the 2013 premium rims. they not bad looking but I'm going for a white/black scheme and it looks a bit awkward with the way I have it now. I was thinking about just painting them gloss black for about $150 ( plastidip is more of a matte black) vs. the $2k set up from RTR or even the $1600 AMR set up. do you think it would be huge difference in appearance if I went with black 18s vs. the 19s.
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Old 05-07-2013, 04:12 PM   #7
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Ok good! I was worried for a moment lol. I had to get spacer for the back cause they say too far in like this. The drive has the new spacer and the passenger side doesn't
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Old 05-07-2013, 08:15 PM   #8
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I wanna chime in on this. I'm running 255/45/18 on TSW 8.5's am I pushing it?
I have 275's on my stock 19x8.5's

---------- Post added at 08:15 PM ---------- Previous post was at 08:14 PM ----------

Quote:
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I have the 2013 premium rims. they not bad looking but I'm going for a white/black scheme and it looks a bit awkward with the way I have it now. I was thinking about just painting them gloss black for about $150 ( plastidip is more of a matte black) vs. the $2k set up from RTR or even the $1600 AMR set up. do you think it would be huge difference in appearance if I went with black 18s vs. the 19s.
I think 19's are the perfect size for our mustangs
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Old 05-07-2013, 08:25 PM   #9
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Well which one weigh less? I chose the tsw cause of the color and the weight
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Old 05-07-2013, 08:37 PM   #10
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Quote:
Originally Posted by 13 stang22 View Post
I have the 2013 premium rims. they not bad looking but I'm going for a white/black scheme and it looks a bit awkward with the way I have it now. I was thinking about just painting them gloss black for about $150 ( plastidip is more of a matte black) vs. the $2k set up from RTR or even the $1600 AMR set up. do you think it would be huge difference in appearance if I went with black 18s vs. the 19s.
You need to find someone that with a 2014 V6 with the Appearance Package that wants Polished wheels, they have the same wheel just Gloss Black.
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Old 05-07-2013, 08:57 PM   #11
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Well which one weigh less? I chose the tsw cause of the color and the weight
I have stock pp wheels and they are super light. I bought an extra rim and I was shocked at how light it was. Downside is it cost me $1k from Ford just for the wheel.
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Old 05-07-2013, 09:33 PM   #12
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I have stock pp wheels and they are super light. I bought an extra rim and I was shocked at how light it was. Downside is it cost me $1k from Ford just for the wheel.
One wheel?????
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Old 05-07-2013, 09:40 PM   #13
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One wheel?????
Yup, from the stealership
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Old 05-07-2013, 10:22 PM   #14
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I have stock pp wheels and they are super light. I bought an extra rim and I was shocked at how light it was. Downside is it cost me $1k from Ford just for the wheel.
Good god man... Is it gold plated?


I was thinking of putting some 275/40/17 drag radials on some 17x8 wheels... Once I can find some... Everything I have seen says those should fit nicely
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Old 05-07-2013, 10:26 PM   #15
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Good god man... Is it gold plated?

I was thinking of putting some 275/40/17 drag radials on some 17x8 wheels... Once I can find some... Everything I have seen says those should fit nicely
That's pushing it bro. Mine were a squeeze to get on 8.5's. I don't think that would be good on 8's. Plus if they are too wide you will lose traction bc the tires will bulge out like a C and your contact patch actually gets smaller.
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Old 05-07-2013, 10:26 PM   #16
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To answer the original question, no a larger diameter wheel/tire will not make your car slower, but a heavier one will. I just went to wider rear tires and wheels that are about 25 lbs lighter than the rear wheels and tires I had on before and can tell a huge difference in acceleration
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Old 05-08-2013, 10:20 PM   #17
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just buy 19 in FORGED wheels.
you'll get the size you want, and the lightweightness of a regular wheel.

---------- Post added at 10:20 PM ---------- Previous post was at 10:17 PM ----------

and buy regular weight I mean this wheel is going to be really light
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