CSB3: Forum Bros Celebrate Our Creator And Lord, Danzig

[MrFancypants]

What tire pressures do you run? VW says 38psi, which is what I usually fill to, but I'm curious if anyone runs at 36 or 35 (or even lower).

38 psi front, ~30 psi rear. I've thought about going lower out back given the 60:40 weight split between front and rear.

 

[mrmatto]

38 psi front, ~30 psi rear. I've thought about going lower out back given the 60:40 weight split between front and rear.

Are you running a different size tire? That's way underinflated in the rear.

 

[jay745]

Psi varies by the type of tire you're using.

 

[mrmatto]

What if you're on tyres

 

[Acadia18]

What PSI for all seasons, the only tires that matter?

 

[MrFancypants]

Are you running a different size tire? That's way underinflated in the rear.

Think of the tires like air springs, if the weight split on the car is 60:40 for neutral handling I want the spring rate to be 60:40 as a starting point to then be tweaked for the handling I want. I've thought about going higher up front or lower out back, but my car likes to rotate so I've just left it be. No issues with odd tire wear. I'm running 225s at each end.

 

[Acadia18]

What if you're on tyres

Then you don't measure PSI. You measure KGSCM.

 

[mwoodski]

Then you don't measure PSI. You measure KGSCM.

l/100km is the oddest form of fuel consumption instead of just making it km/l.

 

[mrmatto]

Think of the tires like air springs, if the weight split on the car is 60:40 for neutral handling I want the spring rate to be 60:40 as a starting point to then be tweaked for the handling I want. I've thought about going higher up front or lower out back, but my car likes to rotate so I've just left it be. No issues with odd tire wear. I'm running 225s at each end.

Yeah I get it, just saying that's a huge difference from stock that almost certainly changes handling. I would be super surprised if it created neutral handling in a car that already is biased towards understeer and has too low of a spring rate in the rear, but if it works for your setup, send it.

 

[avenali312]

I run 100psi. If you're not giving 100%, you're giving 0%.

https://www.reddit.com/r/mildlyinfuriating/comments/xcdsn0

 

[clownish]

Hmm maybe I've been underfilling mine @ 32/33 on Hankook RS4s

 

[MrFancypants]

Yeah I get it, just saying that's a huge difference from stock that almost certainly changes handling. I would be super surprised if it created neutral handling in a car that already is biased towards understeer and has too low of a spring rate in the rear, but if it works for your setup, send it.

I've never had a problem with understeer with my car, it's always leaned heavily towards rotation. At 38/30 the rears are still relatively more stiff than the front. At 38 psi front for a true 60:40 ratio I'd have to have 25 psi out back.

 

[jay745]

Hmm maybe I've been underfilling mine @ 32/33 on Hankook RS4

That's the sweet spot for me too on rs4.

 

[jay745]

Amazing people are still complaining about understeer when it's so easy and relatively cheap to solve.

 

[dtfd]

I've been around 34 psi on my g-max rs.......

Maybe I need to do a caulk test.