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Dave Roberts is a member of PCA and has been a DE Instructor and Club Racing enthusiast for many years. As the Chairman and President/CEO of Carlisle Companies, a global diversified company that owns, among other companies, Hawk Performance and Cragar Wheels, Dave has the perfect job for a real car guy. His Porsche stable includes a 997 GT3 RS, Boxster S and a 944 Turbo Club Sport which he campaigns in vintage and Porsche Club Racing. A car guy with eclectic tastes, he has a replica of the Penske/Donohue ’69 Trans-Am Championship – winning car (featured in the November 2011 issue of Chevy High Performance) that he also races. He owns the Hawk World Challenge Corvette, as well as a low-mileage 1990 ZR1 Corvette.
Ken Ernsting
Ken Ernsting
NNJR Racing Results for Summit PointSummaryNumber of NNJR Racers 5Podiums 6…
SummaryNumber of NNJR Racers 2 Fastest Laps Driver …
This is my last column as the Driver Education chair. The last two years have been challenging and rewarding at the same time, but I consider it a way of giving back to a club that has given me so much over the years. Before I relay my many thanks, let me tell you about a few upcoming events. First, our annual Mid-Winter Track Event is being held on Sunday, January 29 (for football fans, no worries- this is the off-week before the Super Bowl). The Mid-Winter event is not conducted at a track, but will be held at The Villa in Mountain Lakes. There are further details in this issue of the magazine, but this event is intended to inform members, who have not been to a Driver Education event, about the program. We will have presentations on various aspects of the program, on-track video, and plenty of time to ask questions of senior driving instructors. The cost is only $25. This includes a hot buffet lunch and a coupon to recoup your seminar fee at your first DE event. Second, although we have not settled on a date at this writing, Brian Till has agreed to join us for the Advanced Driver seminar. If you watch races on Speed you may have seen Brian reporting from the pits. He also is a former Indy Car driver and a longtime high performance driving instructor at the Mid-Ohio School. Watch for an announcement in next month’s magazine for the date and location!
This time of year while many NNJR member thoughts turn to a beautiful and relaxing ride though the New Jersey countryside in their Porsches to view the changing colors of autumn, the New Members thoughts turn to the second of the Clubs New Member Reception. With this in mind we began the planning several weeks ago. This included selecting the menu for the hot and cold hors d'oeuvres, making sure the chairs for the clubs programs are notified to be present and preparing the information packets we give to each new member. All this being accomplished prior to the event, we were confident the evening would go well.
The evening of the event we decided to leave extra early to avoid arriving late as happened at the last event due to heavy traffic on 287. Arriving at the Villa, we set up our New Member table and were ready in plenty of time to greet the New Members. Shortly the Event Chairs arrived and we were ready for the New Members. As each arrived we greeted them, gave them there information packet and introduced them to the Event Chairs. While this was going on, the staff at the Villa put out the food. At this point for some reason most of the attendees gravitated to the end of the room where the food was. Go figure! Anyway the New Members got to meet the Event Chairs, have their questioned answered and have some great food while sharing their Porsche stories.
The evening of the event we decided to leave extra early to avoid arriving late as happened at the last event due to heavy traffic on 287. Arriving at the Villa, we set up our New Member table and were ready in plenty of time to greet the New Members. Shortly the Event Chairs arrived and we were ready for the New Members. As each arrived we greeted them, gave them there information packet and introduced them to the Event Chairs. While this was going on, the staff at the Villa put out the food. At this point for some reason most of the attendees gravitated to the end of the room where the food was. Go figure! Anyway the New Members got to meet the Event Chairs, have their questioned answered and have some great food while sharing their Porsche stories.
As promised, here is the next installment on car setup basics for Autocross. In previous articles we covered some of the fundamentals of tires, tire pressure and alignment. This article will cover sway bars and shocks.
The resistance of a car to leaning, or roll, while cornering is a primary factor in how a car behaves. There are two reasons for this: Roll affects how the tires touch the pavement and relative roll resistance determines how much weight transferred each corner of the car will carry in a corner. It is clear that a car’s body roll influences grip by tilting the tires on the pavement, but tires are also sensitive to how much vertical load is placed on them. More load equates to more grip, but the tire is also less efficient. Increasing the roll resistance of one axle of a car causes more load to be transferred at that axle, making the tires on that axle work less efficiently. It is this principle you work with by stiffening or softening the chassis. Sway bars and shocks are part of a car’s roll resistance. They are commonly adjustable and work in different ways to affect a car’s behavior.
The resistance of a car to leaning, or roll, while cornering is a primary factor in how a car behaves. There are two reasons for this: Roll affects how the tires touch the pavement and relative roll resistance determines how much weight transferred each corner of the car will carry in a corner. It is clear that a car’s body roll influences grip by tilting the tires on the pavement, but tires are also sensitive to how much vertical load is placed on them. More load equates to more grip, but the tire is also less efficient. Increasing the roll resistance of one axle of a car causes more load to be transferred at that axle, making the tires on that axle work less efficiently. It is this principle you work with by stiffening or softening the chassis. Sway bars and shocks are part of a car’s roll resistance. They are commonly adjustable and work in different ways to affect a car’s behavior.
