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Dec 9/06 was one of those rare days with both wet and (mostly) dry conditions. I'll post vids of each. In the wet the CS handles well but gets squirrelly around turns 5a and 12 (esp. when u touch the wet burm!). I kept the PSM on throughout and u can see the light flickered a lot. Just glad I stayed away from the wall...
Times were 2:43 in the wet and 2:20 in dry.
Thanks to HOD and David Ray and Dev for another great track event!
p.s. thanks to sleepless for posting his Thunderhill video. It's clear that I'm entering most corners way too late and not carrying as much speed through the corners (esp turn 8) as possible.
PSM - Porsche Stability Management
While it can’t overcome the laws of physics, the revolutionary Porsche Stability Management (PSM) system does lend an added degree of balance and control to the Cayman’s mid-engine driving dynamics, inspiring surefooted confidence in corners and extreme situations.
A standard feature on the Cayman and Cayman S, PSM continuously monitors steering input, road speed, yaw velocity and lateral acceleration to calculate the actual direction of travel. If the car begins to steer off line, PSM instantly intervenes with precision brake inputs on individual wheels to help bring the car back onto the driver’s intended path.
If braking alone isn’t enough to correct the vehicle’s cornering line, PSM then calls on the Cayman’s engine management system, adjusting engine output as needed to help stabilize handling. PSM can also compensate in an instant for mid-corner changes in load resulting from deceleration or braking. When Sport mode is selected with the optional Sport Chrono Package, PSM’s threshold for intervention is raised, allowing for greater driver involvement. If you prefer driving without automatic PSM assistance, the system can be set to standby at any time. In this case, it will only intervene under heavy braking, where both front wheels exceed the ABS threshold.
For all of its technical ability, PSM goes virtually unnoticed in everyday driving situations, preserving the Cayman’s natural agility.
Last edited by bob; 12-11-2006 at 05:32 AM.
Reason: video post
We'll put up some pics and videos from same event. My best video lap 2:26. My brother's was 2:16. I didn't video my last run of the day where I think I was faster. (of course) I had never been to Thunderhill so I ran in A group. My brother ran in B group.
The bone stock Cayman (no S) once again proved what an awesome car it is. Even in the hands of a novice (me)
Interesting stat: We got 131 miles to a tank of 50/50 91/101 octane fuel on the track. Then refueled and ran two more sessions.
Also, we looked at the speedo in my brother's videos and saw terminal speeds of over 110 through turn 8 and 112 at the entry to turn 1 and 109 at the turn 13 entry.
He was running in 4th gear at these points where I was touching the redline in 3rd and backing off as I learned the course. That kept me under 100 to 105.
HOD is a great outfit, and Thunderhill is an awesome track. I had at least as much fun there as Laguna and Infineon.
Anyone in Northern California should check them out.
Dec 9/06 was one of those rare days with both wet and (mostly) dry conditions. I'll post vids of each. In the wet the CS handles well but gets squirrelly around turns 5a and 12 (esp. when u touch the wet burm!). I kept the PSM on throughout and u can see the light flickered a lot. Just glad I stayed away from the wall...
Times were 2:43 in the wet and 2:20 in dry.
"....So, what else did we learn in this 25-hour R&D session? Well, the roomier new MX-5 has a strong clutch and a great engine. The twincam 2.0-liter has a flexible powerband, and even though our car didn't have the header that's part of Mazdaspeed's MX-5 Cup prep package, it still produced 190 bhp, thanks to a cold-air intake and a cat-free exhaust. In full-race trim, with header, expect around 195 bhp.
That's pretty good for a car that weighs 2405 lb. and wears 225/45ZR-17 Hankook Ventus spec racing tires. Daniels, who will campaign six cars in the series, says a new Miata, properly tuned, is capable of a 2-minute, 2-second lap. The current Spec Miata record at Thunderhill (using the bypass), for the record, is around a 2:08......"
So, I guess we need a volunteer to get about 500# lbs out of his Cayman and head on back out on the track at Thunderhill to see how much this can be evened out. :-) http://www.caymanclub.net/images/smilies/burnout.gif
PSM - Porsche Stability Management
While it can’t overcome the laws of physics, the revolutionary Porsche Stability Management (PSM) system does lend an added degree of balance and control to the Cayman’s mid-engine driving dynamics, inspiring surefooted confidence in corners and extreme situations.
A standard feature on the Cayman and Cayman S, PSM continuously monitors steering input, road speed, yaw velocity and lateral acceleration to calculate the actual direction of travel. If the car begins to steer off line, PSM instantly intervenes with precision brake inputs on individual wheels to help bring the car back onto the driver’s intended path.
If braking alone isn’t enough to correct the vehicle’s cornering line, PSM then calls on the Cayman’s engine management system, adjusting engine output as needed to help stabilize handling. PSM can also compensate in an instant for mid-corner changes in load resulting from deceleration or braking. When Sport mode is selected with the optional Sport Chrono Package, PSM’s threshold for intervention is raised, allowing for greater driver involvement. If you prefer driving without automatic PSM assistance, the system can be set to standby at any time. In this case, it will only intervene under heavy braking, where both front wheels exceed the ABS threshold.
For all of its technical ability, PSM goes virtually unnoticed in everyday driving situations, preserving the Cayman’s natural agility.
"....So, what else did we learn in this 25-hour R&D session? Well, the roomier new MX-5 has a strong clutch and a great engine. The twincam 2.0-liter has a flexible powerband, and even though our car didn't have the header that's part of Mazdaspeed's MX-5 Cup prep package, it still produced 190 bhp, thanks to a cold-air intake and a cat-free exhaust. In full-race trim, with header, expect around 195 bhp.
That's pretty good for a car that weighs 2405 lb. and wears 225/45ZR-17 Hankook Ventus spec racing tires. Daniels, who will campaign six cars in the series, says a new Miata, properly tuned, is capable of a 2-minute, 2-second lap. The current Spec Miata record at Thunderhill (using the bypass), for the record, is around a 2:08......"
So, I guess we need a volunteer to get about 500# lbs out of his Cayman and head on back out on the track at Thunderhill to see how much this can be evened out. :-) http://www.caymanclub.net/images/smilies/burnout.gif
The above results were with a COMPLETELY stock Cayman. No S. No special tires. No suspension tweaks. First time on the track.
It got a long way out of shape considering you didn't turn the PSM off. Just goes to show it's still possible to let the car get away from you if you're not careful.
Nice vids though. Well done, and Thanks.
Jack
PSM - Porsche Stability Management
While it can’t overcome the laws of physics, the revolutionary Porsche Stability Management (PSM) system does lend an added degree of balance and control to the Cayman’s mid-engine driving dynamics, inspiring surefooted confidence in corners and extreme situations.
A standard feature on the Cayman and Cayman S, PSM continuously monitors steering input, road speed, yaw velocity and lateral acceleration to calculate the actual direction of travel. If the car begins to steer off line, PSM instantly intervenes with precision brake inputs on individual wheels to help bring the car back onto the driver’s intended path.
If braking alone isn’t enough to correct the vehicle’s cornering line, PSM then calls on the Cayman’s engine management system, adjusting engine output as needed to help stabilize handling. PSM can also compensate in an instant for mid-corner changes in load resulting from deceleration or braking. When Sport mode is selected with the optional Sport Chrono Package, PSM’s threshold for intervention is raised, allowing for greater driver involvement. If you prefer driving without automatic PSM assistance, the system can be set to standby at any time. In this case, it will only intervene under heavy braking, where both front wheels exceed the ABS threshold.
For all of its technical ability, PSM goes virtually unnoticed in everyday driving situations, preserving the Cayman’s natural agility.
It got a long way out of shape considering you didn't turn the PSM off. Just goes to show it's still possible to let the car get away from you if you're not careful.
Jack
Indeed, great catch on those slides! My brother and I both spent some time off-course that day. Clearly we need to work on car control.
PSM - Porsche Stability Management
While it can’t overcome the laws of physics, the revolutionary Porsche Stability Management (PSM) system does lend an added degree of balance and control to the Cayman’s mid-engine driving dynamics, inspiring surefooted confidence in corners and extreme situations.
A standard feature on the Cayman and Cayman S, PSM continuously monitors steering input, road speed, yaw velocity and lateral acceleration to calculate the actual direction of travel. If the car begins to steer off line, PSM instantly intervenes with precision brake inputs on individual wheels to help bring the car back onto the driver’s intended path.
If braking alone isn’t enough to correct the vehicle’s cornering line, PSM then calls on the Cayman’s engine management system, adjusting engine output as needed to help stabilize handling. PSM can also compensate in an instant for mid-corner changes in load resulting from deceleration or braking. When Sport mode is selected with the optional Sport Chrono Package, PSM’s threshold for intervention is raised, allowing for greater driver involvement. If you prefer driving without automatic PSM assistance, the system can be set to standby at any time. In this case, it will only intervene under heavy braking, where both front wheels exceed the ABS threshold.
For all of its technical ability, PSM goes virtually unnoticed in everyday driving situations, preserving the Cayman’s natural agility.
Bob,
Thanks for the videos. Now I really want to get back out on the track ASAP!
Nice save coming out of turn 13. That's a nasty concrete wall you managed to miss!
Me, I've only run on one wet track (Laguna Seca this past February). It was pretty scary coming downhill into turn 9 with a river running thru it!
Hey, just one bit of advice if you run Thunderhill again. Stay in the middle of turn 2 longer to create a very late apex and you'll get through it faster... Sorry, it's my favorite turn there and couldn't keep my opinion to myself.
