Braking G-force record?

[sms2022]

Thought this would be kind of a fun thread to compare braking and tire setups.

1.05g’s on stock PP1 brakes with staggered 285/305 super sport tires.

Did not get into the ABS so there is more there.

some of you track guys must be in the 1.3 G+ area

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[NightmareMoon]

Only 1.28 at the last autocross, but thats not the grippiest site and autocross usually isnt always the easiest place to focus on braking technique.

 

[NightmareMoon]

You know braking is one thing that good street tires like the MP4S usually do as well or even better than many track tires. Its kind of the only thing a street tire *must* do well. My truck’s K02s aint gonna win any awards for brake distances

 

[Snellemin]

This is with El Cheapos Velox Petlas 275 fronts and 285 rear tires. Done on a nice piece of concrete road, near my work. I was in sport mode if that matters any. 2 Piece Steeda rotors and Z26 pads.

 

[sms2022]

This is with El Cheapos Velox Petlas 275 fronts and 285 rear tires. Done on a nice piece of concrete road, near my work. I was in sport mode if that matters any. 2 Piece Steeda rotors and Z26 pads.

1.79 lateral G’s? Did you get T-boned? That’s crazy

 

[tosha]

Peak G's are meaningless. A poorly executed donut with snap catch or loss of grip would give exactly that - a split second high value.

 

[Snellemin]

1.79 lateral G’s? Did you get T-boned? That’s crazy

I think that was from when I went through a round-about and touched the pavers and lost traction for a split second at the rear.

 

[Snellemin]

Peak G's are meaningless. A poorly executed donut with snap catch or loss of grip would give exactly that - a split second high value.

Yes, I believe that is what happened to get that reading.

 

[tosha]

Yes, I believe that is what happened to get that reading.

Ask me how I know

 

[WD Pro]

This is with El Cheapos Velox Petlas 275 fronts and 285 rear tires. Done on a nice piece of concrete road, near my work. I was in sport mode if that matters any. 2 Piece Steeda rotors and Z26 pads.

1.79 lateral G’s? Did you get T-boned? That’s crazy

The 1.86 and 1.79 values are rumoured to be something that happens during the build / at the factory, maybe to do with the calibration ? Lots of members have had identical high values, that they can’t repeat after resetting the meter.

I have done 1.04 braking (after a meter reset lol) on the street : MR / PP1 / MPS4's / good tarmac / smooth brake application / no ABS intervention / scrubbing off 60+ mph before entering a a roundabout.

WD

 

[Snellemin]

The 1.86 and 1.79 values are rumoured to be something that happens during the build / at the factory, maybe to do with the calibration ? Lots of members have had identical high values, that they can’t repeat after resetting the meter.

I have done 1.04 braking (after a meter reset lol) on the street : MR / PP1 / MPS4's / good tarmac / smooth brake application / no ABS intervention / scrubbing off 60+ mph before entering a a roundabout.

WD

That reading was after a reset.

So I needed a so called "smoke" break and reset the meter again.
Track mode and Advance track off. Same patch of road and roundabout. Could not repeat my reading and I really tried.

So what sets off such a high reading? Low speed jamming on the brakes maybe?

 

[WD Pro]

That reading was after a reset.

So I needed a so called "smoke" brake and reset the meter again.
Track mode and Advance track off. Same patch of road and roundabout. Could not repeat my reading and I really tried.

So what sets off such a high reading? Low speed jamming on the brakes maybe?

That looks more like it for 'road' readings, without anything strange going on etc

WD

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