Suspension & Brakes Theory, alignment, spring rates....

Is it true?

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Old Jun 7, 2008 | 01:58 PM
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Default Is it true?

That it's better to have your car aligned on new tires? Is it bad to have it aligned on unevenly worn tires?
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Old Jun 7, 2008 | 03:34 PM
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Yes you should always have relatively new or fairly evenly-worn tires on when getting an alignment. Tires worn unevenly can throw it off.
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Old Jun 7, 2008 | 09:16 PM
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Default Re: (PatrickGSR94)

Everyone is telling me that too. My next question is, if I put my 13" winter tires on to do the alignment (cause they're in good shape) and then put my 15" summer tires back on, that'll make the alignment off too won't it? Putting the 15s on will give me negative camber right?
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Old Jun 7, 2008 | 09:30 PM
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Default Re: Is it true? (Dubs13)

Then everyone is an idiot. Alignment has nothing to do with tires. Get your car aligned, and then play with rims/tires all you want. The alignment will not change because of that.

Worn tires might make the car pull, even though the alignment is good, but they will in no way affect the alignment.
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Old Jun 7, 2008 | 09:41 PM
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Default Re: Is it true? (02 accord)

w3rd, alignment is done with lasers n **** , or something like that, tires wont matter

oh and iposted after you again lmao
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Old Jun 7, 2008 | 09:45 PM
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Default Re: Is it true? (361 accord)

Lol, damnit! I've been told that too, that this was all bullshit. I was told it depends on the technology the alignment shop is using. I guess in the end the only way for me to be sure is to ask the guy exactly what he thinks in his professional opinion. Thanks for the help guys.
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Old Jun 7, 2008 | 09:49 PM
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Default Re: Is it true? (Dubs13)

The technology doesn't matter either. Whatever technology is used, an alignment sets the rims pointing straight forward (usually). The only thing that could mess up an alignment is bent rims, but I doubt you'd drive to an alignment shop on bent rims.
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Old Jun 8, 2008 | 08:25 AM
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Default Re: Is it true? (02 accord)

Lol, well it depends on how bent you mean. Cause my rims are all out of round but not enough to cause a shake while I drive or anything.
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Old Jun 8, 2008 | 08:58 AM
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Default Re: Is it true? (Dubs13)

Then put on the rims that you know are not bent/out of round, and get it aligned. If the rims are not bent enough to shake, then the impact on the alignment readings will be negligible.
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Old Jun 8, 2008 | 12:01 PM
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Default Re: (Dubs13)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dubs13 &raquo;</TD></TR><TR><TD CLASS="quote">Everyone is telling me that too. My next question is, if I put my 13" winter tires on to do the alignment (cause they're in good shape) and then put my 15" summer tires back on, that'll make the alignment off too won't it? Putting the 15s on will give me negative camber right?</TD></TR></TABLE>

Tires will not affect camber, worn or not.

But when you're dealing with very accurate machines, unevenly-worn tires can indeed affect the alignment readings.
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Old Jun 8, 2008 | 02:56 PM
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Default Re: (PatrickGSR94)

It's not the different tires that I'm saying will give me negative camber, it's the size difference in the rims and the tires. What do you have to say about that?
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Old Jun 8, 2008 | 07:12 PM
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Default Re: (Dubs13)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dubs13 &raquo;</TD></TR><TR><TD CLASS="quote">It's not the different tires that I'm saying will give me negative camber, it's the size difference in the rims and the tires. What do you have to say about that?</TD></TR></TABLE>

I'm saying that the tire and wheel size has no effect on the suspension, springs, shocks, etc, which is what controls ride height. If ride height doesn't change, then alignment doesn't change.
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Old Jun 8, 2008 | 08:20 PM
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Default Re: (PatrickGSR94)

So you're sure that by getting my car aligned on my 13s, my car will still have perfect alignment when I put my 15s back on? That's what you're saying? I shouldn't have any camber or toe issues by switching tires? I mean, technically what you say makes sense cause when you buy a stock EG that comes with 13s, u don't usually have to get an alignment when you put bigger rims on it. But either way, is that indeed what you're saying?
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Old Jun 8, 2008 | 09:12 PM
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Default Re: (Dubs13)

Yes.
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Old Jun 9, 2008 | 04:33 AM
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Default Re: Is it true? (Dubs13)

In the end I called the guy, he said that with his machine the wear of the tires doesn't matter and the machine can compensate for untrue rims. He said using my 13s wouldn't be a good idea cause the alignment would be off again when I put the 15s on. Apparently, according to Honda, you're suposed to get your car realigned when you upgrade the tire/rim size on your car. So ya, that's that, going to get the car aligned in a couple hours. Wish me luck!
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Old Jun 10, 2008 | 10:14 AM
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Default Re: Is it true? (Dubs13)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dubs13 &raquo;</TD></TR><TR><TD CLASS="quote">In the end I called the guy, he said that with his machine the wear of the tires doesn't matter and the machine can compensate for untrue rims. He said using my 13s wouldn't be a good idea cause the alignment would be off again when I put the 15s on. Apparently, according to Honda, you're suposed to get your car realigned when you upgrade the tire/rim size on your car. So ya, that's that, going to get the car aligned in a couple hours. Wish me luck!</TD></TR></TABLE>

I seriously doubt that would be Honda's recommendation. However, I fully believe that anyone making money off of doing alignments would recommend it.

Very similar to how so many "alignment technicians" tell customers that they need a camber kit to prevent uneven tire wear. Quotes used, because at that point, they're con artists (at worst) and salesmen (at best) more than anything else.
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Old Jun 10, 2008 | 04:40 PM
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Default Re: Is it true? (TunerN00b)

the sales advisors always try to push alignments to customers if they want new tires and ****.

i never did a car that had a problem changing wheels or tires. and throwing the alignment off. if it did theres other issues.

only thing that can possibly throw it off is uneven tire pressure.

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Old Jun 10, 2008 | 08:29 PM
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Default Re: Is it true? (TunerN00b)

You might be right about Honda not recommending that, I found it a little hard to believe myself. As for the camber kit, I dropped my car 2.5 inches, no camber kit would for sure have done some damage to my tires if I hadn't bought one.
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