Can brake squeal trip drive-by noise meters?

Can brake squeal trip drive-by noise meters?

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Pdelamare

Original Poster:

659 posts

127 months

Sunday 11th October 2015
quotequote all
NI've been black flagged at the last two 105db track days I've done, at Oulton and Mallory Park. I'm aware the car has an exhaust noise issue anyway, this is being remedied this week, but the car has passed the static tests and I've been keeping the revs down on track. Having reviewed some video I'm thinking that it could be the brake squeal that is causing the problem. The marshals advise I was tripping the sensor near Shaw's hairpin.

I'm running Pagid Black RS15 which might be too hard for this car, so for the next event I'm swapping them out for a less extreme pad. Another theory are the pops and bangs caused by the down-shift kill. I'm not particularly aware of this from inside the car or on the video, but bystanders say it does.

The car was ok at Silverstone and ran these pads, but they didn't squeal at that time.

Anyone have any experience of this?

http://youtu.be/5amVjhl-Y7Q

http://youtu.be/1Yy5GWinR68

Edited by Pdelamare on Sunday 11th October 18:59


Edited by Pdelamare on Sunday 11th October 18:59

TheEnd

15,370 posts

187 months

Sunday 11th October 2015
quotequote all
Yep, sounds like it, obvious from about 58 seconds onwards in your first video

Steve H

5,224 posts

194 months

Sunday 11th October 2015
quotequote all
Driveby sensors are placed in acceleration zones for the obvious reasons, maybe that means it could catch your brake noise on the way in to the hairpin at Mallory but it wouldn't get you under braking at Oulton.