Post your g-meters
#21
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The G-Force meter that's on the car can record instantaneous measures so you don't have to be constantly accelerating or going at speeds to get a high number on our installed meters. You can just take one sharp 90-deg turn at 25mph and record a number above 1.0 easily. It's not the same as constant grip at speed.
#22
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A couple of reasons.
1. Different tires than test set up.
2. Different tire/track temperatures than test set up
3. They actually hit something and caused a high g force to be recorded.
4. Spin etc or jolt when sliding across uneven surfaces or surfaces that have an abrupt change in friction coefficients.
5. Hills/angles (not flat)
The skid pad values are determined by turning the car at constant radius on a flat surface while increasing speed until the outer most tires begin to slip. That speed is then placed into a formula to calculate the lateral g force. Anything that deviates from that methodology will produce different results.
I believe that the G force meter in our cars is an instantaneous measurement and not based on the above methodology which will produce higher values.
#23
Three Wheelin'
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Downhill right-hander onto the front straight at LRP can carry a lot of grip, as evidence by this G meter post. I've seen someone with over 1.8 before on a GT3 with a similar situation providing extra physical grip.
#24
Three Wheelin'
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#25
Burning Brakes
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#29
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In a driving school I did, the gmeter would show a sustained 2.5 - 2.7 for the majority of a particular long turn. However, there would be a spike each time that was much higher. What causes this? I assume it's a false reading. these were formula cars which is why the readings are higher.
#30
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Sorry but you guys are mistaken on this point. The coefficient for static friction is > than the coefficient for kinetic friction.
In other words, once your tires start to slide, the g forces will decrease. I'd be happy to go through all the math and newtons equations at the risk of being a nerd and boring everyone.
He either hit something or it was on a steep decline and turn.