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SPB Max Deceleration

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Old 12-05-2017, 01:17 AM
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katmeho
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Originally Posted by ProCoach
It's the attack, or rise time, coupled with the friction loading on the tire, not the absolute brake pressure in psi, that does it.
Ah, good to know, I thought it was just the pressure. Thanks!
Old 12-05-2017, 07:28 AM
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MJP911
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Thanks for all the info. Sounds like its around 1.2 max. Peter, you got my a little nervous with the data you posted - I initially was wondering how anyone could achieve over 1.5 with the SPB.
Old 12-05-2017, 09:38 AM
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mjj0000
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Originally Posted by ProCoach
It's the attack, or rise time, coupled with the friction loading on the tire, not the absolute brake pressure in psi, that does it.
Does anyone know where one can find more information (technical) relative to ABS operation?
Old 12-05-2017, 10:08 AM
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toddlamb
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Video with G loads

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Todd Lamb
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Old 12-05-2017, 11:31 AM
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audipwr1
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Why max G important? Isn't more just looking at BPS rate of application, maximum, and rate of removal?

Or is this just secondary to that?

Gs will Depend on a ton of environmental factors

BPS you can create repeatability and also use to coach via overlapping of data
Old 12-06-2017, 07:49 AM
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MJP911
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Originally Posted by audipwr1
Why max G important? Isn't more just looking at BPS rate of application, maximum, and rate of removal?

Or is this just secondary to that?

Gs will Depend on a ton of environmental factors

BPS you can create repeatability and also use to coach via overlapping of data
I ask simply for purposes of setting up my video system, I am using long G load as a proxy for brake pressure in generating the brake overlay for the video (I know it is not exact, but it is a helpful metric).
Old 12-06-2017, 07:55 AM
  #22  
MJP911
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Originally Posted by toddlamb
Video with G loads

https://youtu.be/vbZiMvPr9kU
Todd, great video - thanks. What are you using to get the brake input ?
Old 12-06-2017, 11:00 AM
  #23  
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We run a full AIM system (we are a dealer). We use an AIM pressure sensor and our brake pressure adapter line.
Old 12-06-2017, 07:17 PM
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Streak
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4 but I can't do that for more than 5 or 6 laps in a row as it sort of distorts your vision a bit and can be disorienting. You gotta do what you gotta do to win though!
Old 12-06-2017, 07:30 PM
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audipwr1
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Just to close the loop looks like the aim data system says 1.3 for me - wouldn't read too much into it though


Here is speed, acceleration, and bps for a max threshold break corner with a trail brake into the corner
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