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Old 06-04-2013, 04:57 PM   #151
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Quote:
Originally Posted by Arodr395 View Post
Are the rear tires on the 1LE wide enough? Because I know in certain photos the rear tires look too skinny.
You simply aren't used to seeing tires that are mounted on wheels out at the max recommended width.

They won't have the bulgy-sidewall appearance that you are more accustomed to seeing, and in a handling-oriented application you wouldn't want them to (it would mean that you left too many easy-pickings on the table). 35 profile tires aren't supposed to look bulgy even on measuring width wheels.

Yes, it is a mild stretch as compared to mounting the same tire on its "measuring width" wheel. "Stretch" is a bad word only when it's applied to the Euro-crazies who attempt mounting tires on wheels well in excess of max recommended.

Even half an inch past max recommended is not "well in excess", and is entirely do-able as long as you don't mind a harder ride. My experience-based opinion, with a little backing.


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Last edited by Norm Peterson; 06-04-2013 at 06:39 PM.
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Old 06-04-2013, 05:19 PM   #152
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Originally Posted by Arodr395 View Post
If this is true then why didn't they do the same on the Z28?
They basically did just that. Max-width wheel for 305/30 out back, measuring width wheel for the same size up front.


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Old 06-04-2013, 05:43 PM   #153
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Originally Posted by Cody6.2 View Post
Laughed about what the fact that you're too stupid to do anything but quote engineers?
I am an engineer, or at least I was for most of the past 40 years (until the last round of downsizing got me axed). It's not the industry that matters as much as it is the way of thinking, it's your technical understanding of the problem, and knowing why you made certain design choices.

Just so I know who I'm dealing with here, your background is?

The SS is a fine trim for . . . about 98% of Camaro buyers (Al O. did say 2%, no?). Most people won't even notice the extra understeer compared to a car they aren't driving. This is the car that gets you the bulk of your sales. Call the 1LE and Z/28 bones thrown to the corner-carvers among us if you must, but don't complain about the engineers' choices unless you can bring solid tech of your own to discuss.


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Old 06-04-2013, 05:49 PM   #154
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Quote:
Originally Posted by Cody6.2 View Post
11 vs 11.5 with a 305 tire isn't near the stretch if any at all compared to the 10 vs 11 with a 285 on the 1LE.
In both instances, it's a max width for the size out back, measuring with up front. It wasn't Chevy or their engineers who established those width numbers for those sizes (it's a Tire & Rim Association industry standard that virtually all tire mfrs follow - a few outliers do exist, but only a few)

I know I'm repeating myself somewhat here. It's intentional this time.


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Old 06-04-2013, 05:58 PM   #155
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Originally Posted by So Cal Camaro View Post
I can tell you that one of the engineers on the Z28 and 1LE is one of the best Pro Touring drivers in the nation, so I would take what he says a gospel in regard to our Camaro's...so I would show some respect to the design team.

that being said, I don't have his skills and like my Camaro set up with a slightly larger rear tire for a bit more grip after adding more horsepower...that's my preference for handling in my Camaro on the track...
Mark Steilow does have impressive credentials. Cody disrespects him at his own risk.

Adding more power (and I think particularly more torque) does tend to call for a little more rear tire. It is my understanding that Ford's GT500 was not originally intended to get staggered tire sizes, but couldn't meet certain corporate standards without doing so. In that case, the wheels are the same width, with a min-width tire up front (dare I say stretched?) and a max-width tire out back (squeezed?). Coincidence? Probably not.


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Old 06-04-2013, 06:09 PM   #156
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Originally Posted by Cody6.2 View Post
It makes me laugh when people get their panties so tightly wadded thet they need to single people out and call them a troll. My reply was based on the OP's question and so far is a more ligit answer than anything else. Regardless of what a few "wanna be" experts in here think stretching the rear tire is a piss poor way of tuning handling.
Don't knock it until you've tried it. You don't even know enough about slip angle management to be dangerous. Fortunately for all concerned, I guess.


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Old 06-04-2013, 06:15 PM   #157
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Old 06-04-2013, 06:15 PM   #158
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Quote:
Originally Posted by Cody6.2 View Post
A 285 tire has no place on a 11" rim, period.
That's your opinion, and you are entitled to it. Just as I am entitled to agree with 285's on 11's and 305's on 11.5's as being somewhat extreme but entirely valid OE fitments.

You'll need to explain the failures beyond mentioning them.


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Old 06-04-2013, 06:22 PM   #159
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Originally Posted by Cody6.2 View Post
This whole thread is about the stretched rear tires on the 1LE. The word stretched has been used more than 20 times by everyone. Yet somehow a 285/35/20 isn't what you consider stretched on a 11" wide wheel?

Are you ****ing blind?
No.

You're stuck with a mental picture that wants to see a nice, softish sidewall bulge. And a stubbornness that refuses to admit that even when the T&RA officially OK's the combination that it still isn't any good because you don't happen to like it.


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Old 06-04-2013, 06:28 PM   #160
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Quote:
Originally Posted by Dropspeed View Post
We can skip past all of the above and go straight for some good old fashion facts.

Have you owned a 1LE?
Have you driven a 1LE on a track?
I'll settle for the answer to . . .

Have you ever driven the same car before and after fitting tires that were stretched out to max recommended width?

If, as I suspect, the answer is 'no', he is arguing from neither experience nor engineering comprehension.


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Old 06-04-2013, 06:32 PM   #161
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Quote:
Originally Posted by Cody6.2 View Post
Is it silly to stretch a tire rather than tune the chassis to most, yes.
Your definition of "stretched" is too conservative. That's OK. It leaves potential handling performance on the table, but it's OK.


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Old 06-04-2013, 06:35 PM   #162
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This is fact ↓↓↓

Quote:
Originally Posted by Cody6.2 View Post
Hey look you read the specs for this tire size.


This is biased, nonscientific opinion ↓↓↓

Quote:
I went outside and looked at one.
Do you understand the difference?


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Old 06-04-2013, 06:52 PM   #163
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Quote:
Originally Posted by Norm Peterson View Post
This is fact ↓↓↓





This is biased, nonscientific opinion ↓↓↓



Do you understand the difference?


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As you can tell at that point I was done.
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Old 06-04-2013, 06:57 PM   #164
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I was just working my way down the thread opening up each reply in a separate window so I wouldn't lose my place. Dunno if it was better to throw up so many replies all at once or if it'd have worked out better if I'd seen the thread sooner.

Tomorrow's another day.

Porridge?


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Old 06-04-2013, 07:02 PM   #165
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Originally Posted by Norm Peterson View Post
I was just working my way down the thread opening up each reply in a separate window so I wouldn't lose my place. Dunno if it was better to throw up so many replies all at once or if it'd have worked out better if I'd seen the thread sooner.

Tomorrow's another day.

Porridge?


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Yeah, porridge!
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Old 06-04-2013, 07:16 PM   #166
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Norm I like your style. Not sure of the significance of porridge but sure I'll take some. LoL

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Old 06-04-2013, 07:19 PM   #167
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Norm I like your style. Not sure of the significance of porridge but sure I'll take some. LoL

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It's in the thread.
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Old 06-04-2013, 07:30 PM   #168
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Norm kudos for remaining mature and stating facts. I on the other hand stooped to play at his level. .
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Old 06-04-2013, 07:56 PM   #169
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Norm kudos for remaining mature and stating facts. I on the other hand stooped to play at his level. .
I didn't i said goodbye to him a long time ago,and he still managed to lower himself to the level of calling me names But like i said back then, this can certainly be settled at the track,which is all that matters to me.This is a track car,the set up is right on.
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Old 06-04-2013, 08:02 PM   #170
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Originally Posted by 2cnd chance View Post
Changing directions, Did the OP decide to stay with the 285's or go with 305's for the rear of his 1LE? If upping to 305's Pete from Pedders has a wealth of knowledge.
I don't plan on tracking the car so I might end up putting 305's on the rear. My decision would be much easier if I were able to find a picture of the rear of the 1LE so I could fully see the tire size.
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Old 06-04-2013, 08:07 PM   #171
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GM had the 10'' and 11'' 10 spoke rims already from the ZL1. They also already had the 285 and 305 tires from the ZL1.

They simply found the best performing, yet cost effective way of making the 1LE handle to its maximum potential. This happened to be putting the 285 tire on the 11'' 10 spoke rim for the rear setup.

I'm sure there were other ways to do it, but they didn't want to stock different sized tires or engineer different sized rims just for the 1LE.

I'm in no way complaining, I wouldn't change a thing on my car and am very thankful for the ZL1 or most of the 1LE wouldn't be here.
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Old 06-04-2013, 08:11 PM   #172
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GM had the 10'' and 11'' 10 spoke rims already from the ZL1. They also already had the 285 and 305 tires from the ZL1.

They simply found the best performing, yet cost effective way of making the 1LE handle to its maximum potential. This happened to be putting the 285 tire on the 11'' 10 spoke rim for the rear setup.

I'm sure there were other ways to do it, but they didn't want to stock different sized tires or engineer different sized rims just for the 1LE.

I'm in no way complaining, I wouldn't change a thing on my car and am very thankful for the ZL1 or most of the 1LE wouldn't be here.
I agree. We discussed this sometime ago in the Z/28 threads and that was our conclusion. Off the shelf at its best.
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Old 06-04-2013, 08:31 PM   #173
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Norm.

Don't waste your time with facts, education, and experience,

What does google say about all this? Then we're talking Cody's level.
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Old 06-04-2013, 08:46 PM   #174
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Originally Posted by Arodr395 View Post
I don't plan on tracking the car so I might end up putting 305's on the rear. My decision would be much easier if I were able to find a picture of the rear of the 1LE so I could fully see the tire size.
Sorry for the huge pics. They are what I had on my phone.
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Old 06-04-2013, 08:59 PM   #175
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Sorry for the huge pics. They are what I had on my phone.
Don't worry the bigger the better!! Do you have any pictures that show both rear tires?
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