When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
The only good data I have at this point comes from Barber Motorsports, where the only hard breaking point is the hairpin which is down hill. There I see just over 1g (1.01 - 1.03) based on Traqmate.
The only good data I have at this point comes from Barber Motorsports, where the only hard breaking point is the hairpin which is down hill. There I see just over 1g (1.01 - 1.03) based on Traqmate.
Is the Traqmate ABSOLUTELY level with the car, while the car is on a level surface?
__________________ -Peter Krause www.peterkrause.net www.gofasternow.com
"Combining the Art and Science of Driving Fast!"
Specializing in Professional, Private Driver Performance Evaluation and Optimization
Consultation Available Remotely and at VIRginia International Raceway
If canted forward (nose down) in relation to the car, it can make a difference in the absolute readings (although it’s still ok for comparisons only with that car’s TM generated files).
I will look at some of my IMSA and Historics F1 files, but I would not expect to see a significant difference between T5 and say, T1, in sustained deceleration between them.
I can achieve 1.2 depending on fresh tires and track surface however max avg is 1.1 in this image you can see 1.2 however I hit the abs on this lap in the zone just prior I achieved max BPS and was able to bleed off before ABS kicked in (still need a lot of improvement in brake release) however only saw 1.07 for max deceleration. Whats interesting is had a semi pro drive the car and they had consistently braked at 1500 psi achieving 1.1 max decel therefore always staying out of ABS but achieving 99 % of max decel everytime so much to continue to learn...
Looking through data for Barber now, seeing the following g's (greatest value from a few laps)
T1 0.92
T2 0.6
T5 1.11
T14 0.6
I don't consider T1, 2, or 14 hard braking zones.
If it's lower aft, then that would interfere slightly with forward braking and augment acceleration, but sounds like you're in the ballpark. 1.11 is good, you just need to do that every time. On T2, you should be doing better. T1 looks ok.
Originally Posted by tahoelife
I can achieve 1.2 depending on fresh tires and track surface however max avg is 1.1
What's interesting is had a semi pro drive the car and they had consistently braked at 1500 psi achieving 1.1 max decel therefore always staying out of ABS but achieving 99 % of max decel everytime so much to continue to learn...
I think the #(psi) measurement is dependent on how the individual sensor/system is configured. The sensor in my car is 0-2000 so I set the voltage range on the TM to use 2000 as the max. I agree he ABS hits in different scenarios at different psi my abs hits more frequently as tires go off and is something i need to learn how to adjust for. hitting the abs is not optimal as it upsets the car and lengthens the brake zone