Laguna video
07-21-2009, 10:52 PM
#1
Racer
Thread Starter
Laguna video
requires DivX codec.
http://www.trackhq.com/forums/photop...368/ppuser/450
This was at 48 psi hot. Not much of an example for technique, line, smoothness, or any of that, but the car stayed out of the dirt!
In 5 20 minute sessions on track the car suffered:
3 cracked rotors
2 brake failures (4+ pumps to get the brakes to work)
1 or 2 spread brake calipers
3/4 of the front pads gone
possible bad wheel bearing
http://www.trackhq.com/forums/photop...368/ppuser/450
This was at 48 psi hot. Not much of an example for technique, line, smoothness, or any of that, but the car stayed out of the dirt!
In 5 20 minute sessions on track the car suffered:
3 cracked rotors
2 brake failures (4+ pumps to get the brakes to work)
1 or 2 spread brake calipers
3/4 of the front pads gone
possible bad wheel bearing
07-22-2009, 01:28 AM
#2
Melting Slicks
Laguna Seca is murder on brakes!Still trying to get the video to play.
07-22-2009, 01:32 AM
#3
Racer
Thread Starter
07-22-2009, 01:50 AM
#4
Melting Slicks
07-22-2009, 04:59 AM
#5
Racer
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That carnage seems excessive. Rob, what sort of brake cooling do you have there?
Save http://www.trackhq.com/forums/photop.../50psi_lap.avi to disk and you'll have an AVI file after 1.5 cups of coffee.
Still trying to get the video to play.
07-22-2009, 08:56 AM
#7
Melting Slicks
Nice vid. Sounds like you had some serious carnage! I was there on Thursday with Sidney and ran 4 25 minute sessions with no real problems except my ABS and active handling warning light was on all day.
Bill
Bill
07-22-2009, 10:31 AM
#8
Racer
Thread Starter
33 psi cold. For brakes the car has the base model napa rotors and the mild C6Z06 ducts.
Also, the brakes weren't being used very hard at all, due to the lack of tow hooks and lack of confidence in them.
The car seems to lose a bunch of power when it heats up.
Also, the brakes weren't being used very hard at all, due to the lack of tow hooks and lack of confidence in them.
The car seems to lose a bunch of power when it heats up.
Last edited by Rob Burgoon; 07-22-2009 at 10:34 AM.
07-22-2009, 12:33 PM
#9
Melting Slicks
Your brake carnage is because your tires are crap, you might not be braking hard but you are probably braking often and feathering the brakes because you lack confidence in the grip thru the corners.
Laguna Seca is a short track and if you are braking often there is no opportunity to cool them down. The heat builds up in the brakes; pad wear rate increases, calipers spread, rotors crack, fluid boils.
Do yourself a favor and get rid of those pieces of wood, you will go faster thru the corners, brake less and consume less brakes.
Last edited by Sidney004; 07-22-2009 at 01:03 PM.
07-22-2009, 01:09 PM
#10
Racer
Thread Starter
15 psi pressure build up is really high. 8-10 psi is what I am used to. It could be the tires were filled with saturated air.
Your brake carnage is because your tires are crap, you might not be braking hard but you are probably brakingoften and feathering the brakes because you lack confidence in the grip thru the corners.
Laguna Seca is a short track and if you are braking often there is no opportunity to cool them down. The heat builds up in the brakes; pad wear rate increases, calipers spread, rotors crack, fluid boils.
Do yourself a favor and get rid of those pieces of wood, you will go faster thru the corners, brake less and consume less brakes.
Your brake carnage is because your tires are crap, you might not be braking hard but you are probably brakingoften and feathering the brakes because you lack confidence in the grip thru the corners.
Laguna Seca is a short track and if you are braking often there is no opportunity to cool them down. The heat builds up in the brakes; pad wear rate increases, calipers spread, rotors crack, fluid boils.
Do yourself a favor and get rid of those pieces of wood, you will go faster thru the corners, brake less and consume less brakes.
The tires did fine. I lack confidence in the brakes as well as my muscle memory since I am used to car 1000lbs lighter with a much higher grip to weight ratio.
I also didn't want to find out how the corvette would behave in the dirt, so I kept the mid corner speeds down.
Finally, the car lacks tow hooks, so a trip into the gravel would be unacceptable.
07-22-2009, 01:43 PM
#12
Le Mans Master
07-22-2009, 01:49 PM
#13
Melting Slicks
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07-22-2009, 01:54 PM
#14
Racer
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07-22-2009, 03:47 PM
#17
Racer
Thread Starter
07-22-2009, 03:54 PM
#18
Racer
Thread Starter
