Help deciding between 19" and 20" Nurburgrings - Pontiac G8 Forum: G8 Forums - G8Board.com
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post #1 of 40 (permalink) Old 12-12-2012, 08:16 PM Thread Starter
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Help deciding between 19" and 20" Nurburgrings

I have 20" Camaro SS wheels now. Ive had them about 18 months and ready for a change. I love the looks, but want something different.
From what I have found, the 20" TSWs are 23 lb and 23 lb F/R. The 19s are 20.75 lbs. So, the 20s are 10 lbs more total. Most tires Ive looked up are another 8 lbs more or so for the 20s, so 18 lbs more than the 19s.
Im looking for opinions on whether you think the looks of the 20s is worth the extra weight. Cost is about the same because where the 20" wheels cost more, the 19" tires cost more.
If I go with 19s, Ill probably get 245s all the way around because 275/19s are a lot more $ than the 245 - not worth it.
If I go with 20s, Ill keep the same 245/275 size that I have now.
Feel free to correct me on the weights, Im going by what Ive read.
For those of you that went with the 19s, do you wish you had gotten the 20s?

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post #2 of 40 (permalink) Old 12-12-2012, 08:30 PM
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20's.. In the long run cheaper tires lol

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post #3 of 40 (permalink) Old 12-12-2012, 09:04 PM
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19s - more toward performance
20s - more towards show

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post #4 of 40 (permalink) Old 12-12-2012, 09:06 PM Thread Starter
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If I go with 19s, should I stick with the stock 245 size tires? Or do most peaoper go for a wider rear tire?

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post #5 of 40 (permalink) Old 12-12-2012, 10:06 PM
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Im looking into the same swap on my new 09.. Seems harder to find a matching set of 19" tires with the right rear width
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post #6 of 40 (permalink) Old 12-12-2012, 10:15 PM
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I'm surprised that a tire for the 20in rim is so much heavier than a 19in rims tire. Shouldn't the outside diameter be the same? My 20in setup is several pounds lighter than stock. And I'm running a 285 on the back.

Your camaro wheels weigh a ton and you should see a performance gain even if you stick with 20s.


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post #7 of 40 (permalink) Old 12-13-2012, 01:28 AM
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Quote:
Originally Posted by jasonvt View Post
If I go with 19s, should I stick with the stock 245 size tires? Or do most peaoper go for a wider rear tire?
do you want a staggered set up??

if so get wider wheels for the back as well

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post #8 of 40 (permalink) Old 12-13-2012, 01:32 AM Thread Starter
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Quote:
Originally Posted by hazer396 View Post
do you want a staggered set up??

if so get wider wheels for the back as well
I dont have a preference. Just want the best mix of looks performance and price.

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post #9 of 40 (permalink) Old 12-13-2012, 06:19 AM
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19 or 20, for me getting a 275mm on the back is more important.
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post #10 of 40 (permalink) Old 12-13-2012, 07:25 AM
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20" if you care about tire cost.



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post #11 of 40 (permalink) Old 12-13-2012, 03:50 PM
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I've heard the "20s are cheaper" statement tossed around a few times on various forurms. Without threadjacking, can somebody give an example or two?

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post #12 of 40 (permalink) Old 12-13-2012, 04:34 PM
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19s look better IMO but thats up to u
I have 19s and I went with 245 front and 275 back but I also have 9.5"wide rims in the back and 8.5" In the front

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post #13 of 40 (permalink) Old 12-13-2012, 04:41 PM
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19's for GO, 20's for SHOW.

I'd recommend a 245 front 275 rear set up.




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post #14 of 40 (permalink) Old 12-13-2012, 05:15 PM Thread Starter
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Quote:
Originally Posted by Agose25 View Post
19's for GO, 20's for SHOW.

I'd recommend a 245 front 275 rear set up.
I keep reading this. To what extent is it true. I did the math with weights from discount tire and the 19s are 7.3 lbs total lighter... 1.8 lb per corner. Is that noticeable?

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post #15 of 40 (permalink) Old 12-13-2012, 05:56 PM
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1.8 lbs unsprung wt ~ 18 lbs of sprung wt (rule of thumb - 10:1 ratio)...x4 wheels...so it does add up to quite a bit. Also consider the rotational inertia difference between 19/20s...

FWIW I have the 19s (staggered/275s out back) and was quite surprised that I could feel/notice as much difference as I did relative to the stock wheels...though GXP wheels might be made of lead...

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post #16 of 40 (permalink) Old 12-13-2012, 06:29 PM
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Quote:
Originally Posted by Enginerd View Post
1.8 lbs unsprung wt ~ 18 lbs of sprung wt (rule of thumb - 10:1 ratio)...x4 wheels...so it does add up to quite a bit. Also consider the rotational inertia difference between 19/20s...

^ Well put




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post #17 of 40 (permalink) Old 12-13-2012, 06:46 PM
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Tire brand choice is going to make a bigger diff on rotational weight then merely the wheel size.
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post #18 of 40 (permalink) Old 12-13-2012, 06:57 PM Thread Starter
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I thought that too, but most of the ones I checked out are about the same for any given size. I looked at generals, falkens, Conti

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post #19 of 40 (permalink) Old 12-13-2012, 07:09 PM Thread Starter
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If that 7 lbs makes that much of a difference, wouldnt it be better to go with 4 19x8s with 4 245/40s? that would be 8 lbs lighter than the staggered 19s.

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post #20 of 40 (permalink) Old 12-13-2012, 07:18 PM
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Quote:
Originally Posted by jasonvt View Post
If that 7 lbs makes that much of a difference, wouldnt it be better to go with 4 19x8s with 4 245/40s? that would be 8 lbs lighter than the staggered 19s.
Technically yeah...but there's obviously a trade off between less weight/more tire contact in terms of handling/performance. A 245 combo may be lighter but it isn't going to outperform a 275 staggered combo for grip.

Ask me how I know lol

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