944 Suspension

Started by Rupert, December 14, 2013, 03:38:16 PM

Rupert

Rear end has been indexed!

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Secret Chimp

The bumper makes it look like a sleepy fish just finishing eating a giant sandwich patty.


Quote from: BENZ BOY15 on January 02, 2014, 02:40:13 PM
That's a great local brewery that we have. Do I drink their beer? No.

Rupert

Oh, uh, huh, it kind of does.

I've been meaning to push that bumper in; maybe that's the motivation to do it.
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MrH

Man, those rear wheels need to be pushed out quite a bit to fill out that fender.
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Eye of the Tiger

Quote from: MrH on January 24, 2014, 07:42:51 AM
Man, those rear wheels need to be pushed out quite a bit to fill out that fender.

Yeah, let's fuck up the wheel rate of the freshly indexed rear end while putting undue stress on every piece of the rear suspension, from the bushing all the way through to the wheel studs. It is just amazing the a self-proclaimed suspension guru, who also claims to also be a suspension engineer, can recommend such a useless amd solely detrimental modification. You also don't have a fucking clue about how perfect the classic aesthetics are of a properly restored stock 944.

Looks great, Rupert.
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Rupert

Quote from: MrH on January 24, 2014, 07:42:51 AM
Man, those rear wheels need to be pushed out quite a bit to fill out that fender.

Yeah, I need to contemplate the looks of the car sometime when it's parked in the open. IMO, bigger, offsetter wheels would probably do a lot, though. I think the back might be a little bit higher than the front, which is how it's supposed to be, but I might want to be level for looks. It would be a half inch at the most, and I could use the adjuster bolt things to do that. First thing, though, is get the alignment done and drive it for a while.
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FlatBlackCaddy

Quote from: Eye of the Tiger on January 24, 2014, 07:13:42 PM
Yeah, let's fuck up the wheel rate of the freshly indexed rear end while putting undue stress on every piece of the rear suspension, from the bushing all the way through to the wheel studs. It is just amazing the a self-proclaimed suspension guru, who also claims to also be a suspension engineer, can recommend such a useless amd solely detrimental modification. You also don't have a fucking clue about how perfect the classic aesthetics are of a properly restored stock 944.

Looks great, Rupert.

spin feud's r tarded

Rupert

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Rupert

Hmm, alignment kind of meh. They keep having a hard time with it. It pulls just a little to the right, I think, and the steering wheel is a little off-center, and the numbers aren't all that great left-to-right. To some degree, I guess that's expected, as it's an old car with non-adjustable caster, but :huh: .
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MrH

What are the alignment numbers?
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Rupert

LF:
Camber      -0.43 degrees
Caster      2.35 deg
Toe      0.10 deg

RF:
Cam      -0.13 deg
Cas      2.08 deg
Toe      0.07 deg

Front total toe      0.18 deg
Steer ahead      .02 deg

LR:
Cam      -0.50 deg
Toe      0.05 deg

RR:
Cam      -0.27 deg
Toe      0.00 deg

Rear total toe      0.04 deg
Thrust angle      0.03 deg
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MrH

Pshhh, run something more aggressive than that.  This is your fun car!
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Rupert

I get the impression that this is about as aggressive as it gets.
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MrH

Drop it a bit and get some camber.
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Rupert

I'm not putting new springs on it (which is how I would have to drop the front). There aren't lowering springs that preserve the same spring rate.
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Rupert

I'm mostly concerned that the numbers aren't matching as well as it seems like they should, and I think the toe difference is causing a slight pull to the right, but it's hard to test, as that's the direction the crown of the road pushes the car. :P
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Secret Chimp

Quote from: Rupert on February 17, 2014, 02:58:21 PM
I'm mostly concerned that the numbers aren't matching as well as it seems like they should, and I think the toe difference is causing a slight pull to the right, but it's hard to test, as that's the direction the crown of the road pushes the car. :P

So drive in the middle of the road for a second when it's dead clear both ways. Or do 40 in a parking lot in the middle of the night :P


Quote from: BENZ BOY15 on January 02, 2014, 02:40:13 PM
That's a great local brewery that we have. Do I drink their beer? No.

MrH

Quote from: Rupert on February 17, 2014, 02:56:01 PM
I'm not putting new springs on it (which is how I would have to drop the front). There aren't lowering springs that preserve the same spring rate.

Well, yeah. If you lowered it without increasing your spring rate, you'd bottom out constantly.
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Rupert

Quote from: MrH on February 17, 2014, 06:50:02 PM
Well, yeah. If you lowered it without increasing your spring rate, you'd bottom out constantly.

Ah, right. Well, I don't want to increase the spring rate, lowered or not.
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Rupert

Quote from: Secret Chimp on February 17, 2014, 06:49:11 PM
So drive in the middle of the road for a second when it's dead clear both ways. Or do 40 in a parking lot in the middle of the night :P

Of course, I just haven't gone out to do that.
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Eye of the Tiger

Quote from: Rupert on February 16, 2014, 03:27:08 PM
LF:
Camber      -0.43 degrees
Caster      2.35 deg
Toe      0.10 deg

RF:
Cam      -0.13 deg
Cas      2.08 deg
Toe      0.07 deg

Front total toe      0.18 deg
Steer ahead      .02 deg

LR:
Cam      -0.50 deg
Toe      0.05 deg

RR:
Cam      -0.27 deg
Toe      0.00 deg

Rear total toe      0.04 deg
Thrust angle      0.03 deg

Almost everything about those numbers will lead to pulling right, and that is even before road crown is considered.

Your caster is biased to pull right. Caster may not be "adjustable", but you can change it.

Your front toe is biased to pull right.

Your front and rear camber are biased to turn right.

Find an alignment shop that knows what it's doing.



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Rupert

How can you change caster without it being adjustable? o_0

This is about the only game in town for good alignments, as far as I can tell. The Porsche club goes there (so says the Porsche club). I might have to look harder, though; they haven't really gotten it right on this car, yet.
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MrH

Most alignments shops will set things to pull right slightly.  They don't want to risk your car pulling towards oncoming traffic.

My BRZ is setup just about dead straight.  Slightly difference in camber in the rear due to the subframe being offset a little.
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Secret Chimp



Quote from: BENZ BOY15 on January 02, 2014, 02:40:13 PM
That's a great local brewery that we have. Do I drink their beer? No.

Eye of the Tiger

Quote from: MrH on February 18, 2014, 10:46:45 AM
Most alignments shops will set things to pull right slightly.  They don't want to risk your car pulling towards oncoming traffic.

My BRZ is setup just about dead straight.  Slightly difference in camber in the rear due to the subframe being offset a little.
Quote from: Secret Chimp on February 18, 2014, 12:49:37 PM
You need to get something like these:

http://www.ground-control-store.com/products/description.php/II=646/CA=97

:facepalm:

Suspension "engineer" fail.

Alignments are set straight, except caster, which is often factory set to compensate for road crown.

Quote from: Secret Chimp on February 18, 2014, 12:49:37 PM
You need to get something like these:

http://www.ground-control-store.com/products/description.php/II=646/CA=97

You can't just use some cobbled together internet special coilovers. Fail.
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giant_mtb

Your butt...really still hurts that badly? 

Eye of the Tiger

Quote from: giant_mtb on February 18, 2014, 02:38:24 PM
Your butt...really still hurts that badly?

It really is no trouble to continuously point out the massive hipocracy and ignorance of those two.
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giant_mtb

I enjoy your posts, Nickliss, but you really just need to learn when to let shit go. It's the goddamn internet.

Eye of the Tiger

Quote from: giant_mtb on February 18, 2014, 02:41:22 PM
I enjoy your posts, Nickliss, but you really just need to learn when to let shit go. It's the goddamn internet.

And just because it's the goddamn internet doesn't mean you can be a massive asshole and expect me to forget about it, especially since most of you guys are actually cool enough to hang out with outside of the internet.
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