Why is .20 the default rear toe angle?

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United States
United States
It seems for the majority of cars I use, the rear toe angle is set to .20 when I have racing suspension equipped.

Is there a reason for this?
 
It's for all cars except a chosen few. I don't think there is a reason so I usually zero toe out before I start tuning.
 
Because rear toe is an easy way to make the car more stable, but the noticable side effect is worse tyre wear.
 
Nearly all production cars run some amount of rear toe in, they probably pulled the 0.20 figure out of a hat. Hell, my Focus specs 0.50 degrees rear toe in, and that's a FWD econobox. Considering factory alignment specs are readily available I don't see why PD doesn't use those as the default.
 
oppositelock
Nearly all production cars run some amount of rear toe in, they probably pulled the 0.20 figure out of a hat. Hell, my Focus specs 0.50 degrees rear toe in, and that's a FWD econobox. Considering factory alignment specs are readily available I don't see why PD doesn't use those as the default.

I've done a few alignments and rear toe is usually slightly in on ff cars and there is none on rwd cars. However I've done a car where rear toe is adjustable, as that's something manufactures really don't like you screwing with.
 
I've done a few alignments and rear toe is usually slightly in on ff cars and there is none on rwd cars. However I've done a car where rear toe is adjustable, as that's something manufactures really don't like you screwing with.

I imagine older American and some Japanese RWD cars might spec zero or very little rear toe, but I've noticed many European makes, particularly the Germans, run tons of it. I've posted a link previously which shows up to 0.85 on some AMG models. I feel forced to post it whenever someone claims toe is the devil and should only be used in very, very small doses.
 
oppositelock
I imagine older American and some Japanese RWD cars might spec zero or very little rear toe, but I've noticed many European makes, particularly the Germans, run tons of it. I've posted a link previously which shows up to 0.85 on some AMG models. I feel forced to post it whenever someone claims toe is the devil and should only be used in very, very small doses.

I don't get to work with new high end cars much:( so yes I was going with more common cars particularly American cars.
 
0.20 is just laziness on PDs part. So is damper bound and rebound always set at 8. It looks like they profiled springs pretty well and maybe camber on some cars.
 
It's a basic. It shows .20 so that's not the highest you can go, but it suggest you may want more.
99% sure this one's supposed to be a hint in which direction most players will want to go with it, jmo.
 
The default 0.0 camber on most cars is especially ridiculous. Something between 0.5 and 1.0 would be far more appropriate and realistic.
 
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The default 0.0 camber on most cars is especially ridiculous. Something between 0.5 and 1.0 would be far more appropriate and realistic.
So is "0" ride height, 16.9 spring rate, 4 damper, and 2 sway bar.

But then I still think GT5 is essentially using GT1's tuning, so it's not a shock to me that everything's off.
 
The default 0.0 camber on most cars is especially ridiculous. Something between 0.5 and 1.0 would be far more appropriate and realistic.

0.5 to 1 is also pretty arbitrary. Most road cars run zero front camber and about 1 to 1.5 degrees negative rear camber... if I recall right, MINIs run 1.7 in the rear.

Many production cars have rear toe-in. Even those that don't have special bushing deflections designed in to increase rear toe-in under load. Since manufacturers don't publish "toe-in under load" figures, it's basically just guesswork as to how much toe some modern cars actually have when cornering (as opposed to static toe).
 
I always wondered if the full suspension hinted at additions to the stock setup. So you would be running an additional .2 toe to the rear over the stock default value.

I've often thought this is the case for everything but springs and shocks.
 
I imagine older American and some Japanese RWD cars might spec zero or very little rear toe, but I've noticed many European makes, particularly the Germans, run tons of it. I've posted a link previously which shows up to 0.85 on some AMG models. I feel forced to post it whenever someone claims toe is the devil and should only be used in very, very small doses.

I use 0.63 in the rear on one of my race cars and it works too. 👍
 
Rear toe-in: too little
• Power on oversteer during corner exit

Rear toe-in: too much
• Rear feels light and unstable during corner entry. Car slides through corners rather than rolling freely

Rear toe-our: any
• Power oversteer during corner exit and (maybe) in a straight line
• Straight line instability
 
Rear toe-in: too little
• Power on oversteer during corner exit

Rear toe-in: too much
• Rear feels light and unstable during corner entry. Car slides through corners rather than rolling freely

Rear toe-our: any
• Power oversteer during corner exit and (maybe) in a straight line
• Straight line instability

this 👍
 
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