Haha, dang! Woooosh!

 

Was that with or without hands on the wheel?

 

- I love that video. But I haven't had the guts to go no handed yet.

 

Cool. I just did my first DE yesterday so I had to check. Car is simply amazing.

 

Its an excellent tool to record, or document success - or failure - to quote Senna:

"Each driver has its limit. My limit is a little bit further than other’s"

Or Carl Edwards of NASCAR after spinning at Michigan:

"We broke something, I think it was traction…"

It won't measure failure - just success right up to the point of impending doom...

or, as Buddy Baker put it best:

"He ran out of talent about halfway through the corner"

 

Just checking, but I am surprised you can accelerate more quickly than brake - I wonder if you are reading the display incorrectly and the 1.3 is the braking G force?
If it is as you indicate, this is exceptional!

 

Ma991, are those numbers with street tires?

 

With hard braking so much weight transfers forward that even though all 4 wheels are braking most of the work is done by the fronts. Under acceleration its the same in reverse. In each case the limiting factor is the traction at the business end. And when it comes to acceleration, look how much rubber the Turbo S puts on the business end.

Anyway, the 1.3 g is a peak value. The average value will show more deceleration, i.e. it stops from 100 mph faster than it will get there. But that 1.3 g surge off the line, wow!

 

As I said, this didn't represent track driving. Or any other kind of attempt to find the limits. It's just the result of some playing around in the few hundred miles since completing break-in and getting the winter tires off. So it just means that I tried Launch Control a couple of times (freaking amazing!), but never really explored the limits of braking.

Also, note that with the engine in back and with much wider tires in back (305s vs 245s), grip for acceleration is likely to be greater than grip for breaking.

 

no, not really useful. In racing, on a track, with racecar, we use TraqDash data sometimes to assess grip and so forth. Mostly after we pit. The only time I can think of on-track is when in very long sweepers. (like the lightbulb at NJMP).....occasionally, I'll reference it to see how my tires are doing.

 

With those 1.24 numbers was the rear sliding at some point. It seems like once pushed to the limit there must be a cut off point like maybe 1.3 mentioned earlier . When conditions are ideal- good road surface and sticky tires what is the highest value that has been recorded for lateral force. I realize that the gauge is not a something to watch while driving like oil temp. or rpm but it is interesting to look at after a alpine run.

 

yes, stock 4S setup.

 

I can routinely pull numbers close to 1.3 G similar to what Ma 991 post shows and I run street tires and am not that great of a driver so I always figured the G meter was not really all that accurate.

Engine in back or not I get much higher numbers breaking then accelerating.

 

I got a 1.16 lateral max. On these forums I've seen a 1.5ish on street tires and 1.76 with track tires. Pictures were included. Pretty impressive!

 

I wonder if they were breaking the rear loose to pivot around hairpins?