Maximum G's?
#1
Maximum G's?
Curious what you all are seeing for max G's lateral and forward/back?
Mine currently after reset 800 miles ago, stock car with fully front/rear aero maxed out
Mine currently after reset 800 miles ago, stock car with fully front/rear aero maxed out
#2
Instructor
Join Date: Feb 2011
Location: Portland, OR, USA
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I usually reset before and sometimes during an autocross. Looks like the last one was 1.13 braking, 0.87 accel, 1.58 left, 1.1 or 1.2 something right. I find it's not unusual to see a 1.4x or 1.5x lateral during autocross. Presumably instantaneous -- the OEM tires can't sustain that. Putting on top autocross R compounds would increase the numbers some.
I'd be scared if I was seeing that on the street.
I'd be scared if I was seeing that on the street.
#4
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Join Date: Nov 2014
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Hockenheim F1 track today, mostly damp conditions, one run in dry conditions. 45°F, cloudy.
Saw 1.5g under braking once, never seen more than 1.4g cornering, car broke loose just after that level.
Saw 1.5g under braking once, never seen more than 1.4g cornering, car broke loose just after that level.
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#8
Rennlist Member
#9
Three Wheelin'
the most significant attribute that drives G-Force are the tires. I bet Bill was running Hoosiers at the glenn and thus the higher G values....
there is a big difference between peaks and sustained.
my experiences is that the Cup2 and RE71R can sustain 1.35 ish (track surface also comes into play as well as temperatures)
you will see peaks around1.6 on above tires when you hit curbs in a hard corner.
I don't have Hoosier data
there is a big difference between peaks and sustained.
my experiences is that the Cup2 and RE71R can sustain 1.35 ish (track surface also comes into play as well as temperatures)
you will see peaks around1.6 on above tires when you hit curbs in a hard corner.
I don't have Hoosier data
#12
Rennlist Member
1.8Gs w/GT4RS @ PECATL
My instructor showed me 1.8 on the GT4RS dash before I blew it up.
Probably due to the corkscrew and carousel with elevation changes on the new West Track.
Kept up with a landing jetliner on the back straight (do the math).
Not sure we were supposed to be doing 10/10ths, so please keep on the down-low.
Probably due to the corkscrew and carousel with elevation changes on the new West Track.
Kept up with a landing jetliner on the back straight (do the math).
Not sure we were supposed to be doing 10/10ths, so please keep on the down-low.
#13
Rennlist Member
LOL I did not know that thing stored your highest readings. Rather impressed that my otherwise stock 981 Cayman S did 151 L 144 R and 141 B. However that was w/ Nankangs, SRF, and Ferodo 3.12s. Acceleration only 47 even w/ Sport Chrono Plus; definitely need more power!