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#346
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Spring is here
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#347
Burning Brakes
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#349
Intermediate
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#353
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#356
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Now THAT'S a number!
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#357
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nice to see a photo not in your parking garage bob!
#358
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#359
Then there's a huge difference just from tires and the surface. What tires are people using in various tests? How new are the tires? Are they warmed up? Are pressures optimized for that specific situation? What's the surface look like? Asphalt vs. concrete can make a huge difference. What's the grain of the surface?
Also, beware that the car is reporting an instantaneous g-loading while the skidpad is a steady-state number. You can generate much bigger short-term numbers than you can long-term.
In the case of my silly numbers in the picture, the track I was on had some up/down that change things too. I suspect that those 1.5g numbers come from corners where you're coming down a hill into the corner and then turning. One corner even had a bit of a groove in the track you could hook into. Then there's camber...if you tilt the road, you can get seriously silly g numbers. Drop the car vertically into the corner, it loads the suspension an extra amount and you can really rip the corner.
Basically, don't put too much stock in any g numbers...particularly ones you can't verify were carefully and scientifically done in the same way so they can be compared. Skidpad numbers, if done right, are the closest to meaningful...but you can't compare them too much even day to day, much less skidpad to skidpad.
#360
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Thanks, and as I said there are a lot of variables. I was on a long, sweeping exit ramp on I95 last week and I got .99 - the car felt it was at max grip and any more would have put me in the grass.
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