Does Wheel Size Affect 0-60 Times? (V6/Auto) - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

MPGomatic · 08-01-2009, 11:02 AM

I'm in the midst of cutting our V6/Auto Camaro video review. Loved the car, but I've been banging my head with this question for a while ...

Our test 2LT unit was equipped with the #2 21-inch wheel package. Couldn't hit the stated 0-60 times (6.1 sec) ...best stab at it was .5 off. Should I just hang up my keys (and take up stamp collecting), or does wheel size affect 0-60?

This looks to be the same car that AutoBlog tested ... packed with $11K in options.

hot ss · 08-01-2009, 11:08 AM

smaller diameter tires, that will lower your gear ratio, will give you a tad more acceleration,
same diameter, but lighter tires/wheels will remove some rotating mass and improve your times.

96rss/ls6 · 08-01-2009, 11:15 AM

Yes the wheel size does make a huge difference. You are dealing with much more rotational mass with the 21s. If you weigh them I bet they are 25 pound more than the stockers a piece. so you are adding like 100 pounds of rotational mass. I dynoed my LS6 with 20s then with factory aluminum 16s and got a astounding 60hp and 77 LB/FT of torque. Its like changing to light weight fltwheels, or drive shafts ect.. You gotta pay the price to look good. My 96 started life as a v6 and after 20s and a world class stereo were added it wouldnt get out of its own way, so I then put a ls1 in it, then converted to a ls6, then nitrous, then..... well you get the idea

MPGomatic · 08-01-2009, 11:38 AM

Thanks! That's along the lines of what I've been thinking ...

If we had Mythbuster's budget (as opposed to a non-existent budget), we'd set up mileage and performance tests, using various wheel sizes, from 18s to 21s.

I've got a couple of ideas and something to shoot for, if nothing else.

96rss/ls6 · 08-01-2009, 11:40 AM

Yep, good luck with it.

Black5thgen · 08-01-2009, 12:51 PM

The overall dia. is suposed to be the same for all wheel/tire combos offered from 18-21". The side wall is what varies. You may notice a small difference between sizes due to weight, but is you run an 18" wheel with a 50 sidewall tire you will definantly notice a difference.

Gentry78 · 08-01-2009, 01:05 PM

yup everybody else nailed it lol

PQ · 08-01-2009, 01:45 PM

I seriously doubt that the entire .5 seconds is due to the wheels. You're assuming that he'd get the advertized time on the run.

97one · 08-01-2009, 06:43 PM

Quote:

Originally Posted by MPGomatic

I'm in the midst of cutting our V6/Auto Camaro video review. Loved the car, but I've been banging my head with this question for a while ...

Our test 2LT unit was equipped with the #2 21-inch wheel package. Couldn't hit the stated 0-60 times (6.1 sec) ...best stab at it was .5 off. Should I just hang up my keys (and take up stamp collecting), or does wheel size affect 0-60?

This looks to be the same car that AutoBlog tested ... packed with $11K in options.

YES wheel & tire Dia. does effect 0-60 MPH ET.

What size rims did it come with from the factory? The 2LT has 19" with the RS pkg. they are 20" ...What is the overall Dia.of your 21"tires ? What was the overall Dia. of Tires it came from the factory with ? IF there is much of a difference THAT could the reason.
A smaller overall Dia.Pkg. would give you a quicker ET

You would think a larger size rim with tire would have a larger overall Dia. than a smaller rim with tire. That is not always true. IT ALL DEPENDS on the TIRE size.

MPGomatic · 08-02-2009, 09:49 AM

97one - This car has the #2 dealer-installed OEM 21-inch option package. 21" x 8.5' rims, 245/40ZR21s.

I didn't order it that way, I'm only the test driver.

Not sure about the tire diameter ...

97one · 08-02-2009, 12:06 PM

Quote:

Originally Posted by MPGomatic

97one - This car has the #2 dealer-installed OEM 21-inch option package. 21" x 8.5' rims, 245/40ZR21s.

I didn't order it that way, I'm only the test driver.

Not sure about the tire diameter ...

I would think your 245/40ZR21s have a larger dia. than the 275/40ZR20s that come w/the RS pkg. (same 40 profile) BUT without knowing the overall Dia. you can't be sure.

MOTOR TREND gives the 0-60 mph ET as: 5.9 sec. for the manual and 6.0 sec. for the AUTO. That is the V6 with the RS 20" tires.............

97one · 08-02-2009, 12:23 PM

[QUOTE=MPGomatic;746611]I'm in the midst of cutting our V6/Auto Camaro video review. Loved the car, but I've been banging my head with this question for a while ...

Our test 2LT unit was equipped with the #2 21-inch wheel package. Couldn't hit the stated 0-60 times (6.1 sec) ...best stab at it was .5 off. Should I just hang up my keys (and take up stamp collecting), or does wheel size affect 0-60?

I forgot to add : I would think the possible small Dia. difference between the 20" & 21" would only be app. .1 or .2 sec. in the 0-60ET times.

I guess you used the SPORT mode or Paddle shifters to make the test ?
Sorry but I had to ask...........

MPGomatic · 08-02-2009, 01:18 PM

Quote:

Originally Posted by 97one

I forgot to add : I would think the possible small Dia. difference between the 20" & 21" would only be app. .1 or .2 sec. in the 0-60ET times.

I guess you used the SPORT mode or Paddle shifters to make the test ?
Sorry but I had to ask...........

Yep, Sport mode with traction control on (the culprit?). Here's a 0-60 clip:

2010SLVRBULIT · 08-02-2009, 01:25 PM

7 sec?..sounded like a poor start..

08-01-2009, 11:02 AM	#1
MPGomatic Drives: it changes every week Join Date: Aug 2009 Location: the swamps of jersey Posts: 7	Does Wheel Size Affect 0-60 Times? (V6/Auto) I'm in the midst of cutting our V6/Auto Camaro video review. Loved the car, but I've been banging my head with this question for a while ... Our test 2LT unit was equipped with the #2 21-inch wheel package. Couldn't hit the stated 0-60 times (6.1 sec) ...best stab at it was .5 off. Should I just hang up my keys (and take up stamp collecting), or does wheel size affect 0-60? This looks to be the same car that AutoBlog tested ... packed with $11K in options.

08-01-2009, 11:15 AM	#3
96rss/ls6 Inferno is the only color Drives: 96 ls6 camaro, iom 2ss/rss / Join Date: Mar 2009 Location: greer south carolina Posts: 236 View My Garage	Yes the wheel size does make a huge difference. You are dealing with much more rotational mass with the 21s. If you weigh them I bet they are 25 pound more than the stockers a piece. so you are adding like 100 pounds of rotational mass. I dynoed my LS6 with 20s then with factory aluminum 16s and got a astounding 60hp and 77 LB/FT of torque. Its like changing to light weight fltwheels, or drive shafts ect.. You gotta pay the price to look good. My 96 started life as a v6 and after 20s and a world class stereo were added it wouldnt get out of its own way, so I then put a ls1 in it, then converted to a ls6, then nitrous, then..... well you get the idea __________________

08-01-2009, 11:40 AM	#5
96rss/ls6 Inferno is the only color Drives: 96 ls6 camaro, iom 2ss/rss / Join Date: Mar 2009 Location: greer south carolina Posts: 236 View My Garage	Yep, good luck with it. __________________

08-01-2009, 01:45 PM	#8
PQ Booooosted. Drives: 2010 Supercharged SS Join Date: Apr 2008 Location: Mobile, AL Posts: 36,717 View My Garage	I seriously doubt that the entire .5 seconds is due to the wheels. You're assuming that he'd get the advertized time on the run. __________________

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08-01-2009, 11:08 AM	#2
hot ss Drives: aqua 2ss l99 Join Date: Jun 2009 Location: Edmonton Posts: 1,215	smaller diameter tires, that will lower your gear ratio, will give you a tad more acceleration, same diameter, but lighter tires/wheels will remove some rotating mass and improve your times. __________________ May your exhaust note, sing in harmony with your blower.

08-01-2009, 11:38 AM	#4
MPGomatic Drives: it changes every week Join Date: Aug 2009 Location: the swamps of jersey Posts: 7	Thanks! That's along the lines of what I've been thinking ... If we had Mythbuster's budget (as opposed to a non-existent budget), we'd set up mileage and performance tests, using various wheel sizes, from 18s to 21s. I've got a couple of ideas and something to shoot for, if nothing else.

08-01-2009, 12:51 PM	#6
Black5thgen Account Suspended Drives: 2007 C6 Join Date: Apr 2007 Location: chicago Posts: 2,251 View My Garage	The overall dia. is suposed to be the same for all wheel/tire combos offered from 18-21". The side wall is what varies. You may notice a small difference between sizes due to weight, but is you run an 18" wheel with a 50 sidewall tire you will definantly notice a difference.

08-01-2009, 01:05 PM	#7
Gentry78 HOOK'EM Drives: 97 c1500/92 olds Join Date: Oct 2008 Location: Texas Posts: 5,279	yup everybody else nailed it lol

08-02-2009, 09:49 AM	#10
MPGomatic Drives: it changes every week Join Date: Aug 2009 Location: the swamps of jersey Posts: 7	97one - This car has the #2 dealer-installed OEM 21-inch option package. 21" x 8.5' rims, 245/40ZR21s. I didn't order it that way, I'm only the test driver. Not sure about the tire diameter ...

08-02-2009, 12:23 PM	#12
97one Drives: 2016 & 1967 Camaro, 2015 Impala, +1 Join Date: Jul 2009 Location: New York Posts: 1,165	[QUOTE=MPGomatic;746611]I'm in the midst of cutting our V6/Auto Camaro video review. Loved the car, but I've been banging my head with this question for a while ... Our test 2LT unit was equipped with the #2 21-inch wheel package. Couldn't hit the stated 0-60 times (6.1 sec) ...best stab at it was .5 off. Should I just hang up my keys (and take up stamp collecting), or does wheel size affect 0-60? I forgot to add : I would think the possible small Dia. difference between the 20" & 21" would only be app. .1 or .2 sec. in the 0-60ET times. I guess you used the SPORT mode or Paddle shifters to make the test ? Sorry but I had to ask...........

08-02-2009, 01:25 PM	#14
2010SLVRBULIT Drives: G5(LLT) & C6(LS3) Join Date: Apr 2009 Location: MARS Posts: 7,525 View My Garage	7 sec?..sounded like a poor start..