Current Events
Date
Title
Color
Post Date
sun05may8:00 amsun4:00 pmCar Control Clinic
Time
May 5, 2024 8:00 am - 4:00 pm(GMT-11:00)
Location
MetLife Stadium, Lot L
East Rutherford, NJ
Event Details
Registration is OPEN for the Car Control Clinic May 5 , 2024, HERE. Sign up early, this event will sell out. VOLUNTEER INSTRUCTORS – WE NEED
Event Details
Registration is OPEN for the Car Control Clinic May 5 , 2024, HERE. Sign up early, this event will sell out.
VOLUNTEER INSTRUCTORS – WE NEED YOU TO SIGN UP using the same link above
Sign-up is a zero charge option for instructors on the Motorsportreg signup page
The complete CCC experience can be found on the NNJR’s Autocross page HERE
You will have loads of seat time navigating the Skid Pads, Acceleration and Braking expresses with a certified NNJR Instructor. If you don’t have a helmet, NNJR will supply one.
The car control exercises are purely designed for the sake of learning. There are no timers at this event, and there are no winners or “results” of any kind. The speed of the participants’ automobiles is only important as it relates to being able to properly get something out of the exercise. For example, to properly learn the braking exercises, the car must be traveling at sufficient speed to allow for ABS to be triggered.
The exercises are designed to be followed closely by the instructors so that we maintain continuity in the way these skills are taught to the participants.
We have a limit on 64 drivers, it will sell out fast
All-day event – arrive by 8:00 an and complete roughly 4:00 pm
location: MetLife Lot L
For more details check of NNJR’s Autocross Page
fri10mayAll Daysun12Mid-Ohio DE
Time
May 10, 2024 - May 12, 2024 (All Day)(GMT-04:00)
Location
Mid-Ohio Sports Car Course
7721 Steam Corners Rd, Lexington, OH 44904
fri10may11:02 amfri11:02 amTreffen Mount Washington
Time
May 10, 2024 11:02 am - 11:02 am(GMT+00:00)
Location
Omni Mount Washington Resort
310 Mount Washington Hotel Road, Bretton Woods, NH 03575
Event Details
September 29 – October 3, 2024 Omni Mount Washington Resort 310 Mount Washington Hotel Road Bretton Woods, NH 03575 Registration Opens – Wednesday, 5/29/2024
Event Details
September 29 – October 3, 2024
Omni Mount Washington Resort
310 Mount Washington Hotel Road
Bretton Woods, NH 03575
sun19may9:00 amsun4:00 pmWelcome to The Club Concours and Rally
Time
May 19, 2024 9:00 am - 4:00 pm(GMT-11:00)
Location
Bright Horizons
100 Campus Drive Florham Park, NJ
Event Details
Welcome New Members and Porsche lovers New to the club, seasoned veterans or just checking out to see what all the buzz is about, this day is created for you.
Event Details
Welcome New Members and Porsche lovers
New to the club, seasoned veterans or just checking out to see what all the buzz is about, this day is created for you.
Drive up, park your car in a large space and marvel at the early bird Concours contestants busily preparing their amazing and beautiful cars for the morning competition. Take pictures, talk to owners, and make new friends.
Next up, is the afternoon Rally, a fun and relaxing outing for everyone (children included). The route always includes gorgeous scenery, country roads, and unique local features with a fun restaurant to gather at the finish line. 100% of the proceeds go to the NNJR Charity, Chesire Home.
Sunday, May 19, 2024;
9:00 am to 4:30 pm
100 Campus Drive
Florham Park, NJ
“Welcome to the Club” Concours 9:00 am to 1:00 pm
What better way to enjoy a beautiful spring Sunday morning than to participate in the “Welcome to the Club” Concours – great cars, great friends, and a great venue!
This event is the initial competitive Concours of the 2024 season and is open to all contours novices and veterans. New members are particularly encouraged to compete at this low-stress event and benefit from the judges’ constructive feedback. Exterior, interior, and storage areas will be judged. All participants will earn Championship Points toward the annual trophies and awards. Trophies and prizes will be awarded to the winners in each class. Children are welcome to join as Porsche Junior Judges to pick their Best in Show Porsches. The entry fee is$25 and includes refreshments. To register for this event, go to https://nnjr-pca.com/event-registration/
Questions, contact us at concours@nnjr-pca.com
“Welcome to the Club” Rally ~1:30 am to 4:30 pm
The NNJR Rally will kick off after the Concours, the recommended donation to participate in the Rally, the charge is $75.00 per car with up to 2 participants. Additional passengers are $25. Children under 12 are free. Donations to Chesire home will be accepted at the event.
sun09junAll Daysat15Porsche Parade 2024
Time
June 9, 2024 - June 15, 2024 (All Day)(GMT-11:00)
Location
Porsche Parade 2024
Event Details
Parade Registration: Phase I will open on Wednesday, January 31 (12:00 PM ET) at the following link: https://www.porscheparade.org
Event Details
Parade Registration: Phase I will open on Wednesday, January 31 (12:00 PM ET) at the following link:
https://www.porscheparade.org
What’s New Blog
Date
Title
Color
Post Date
Date
Title
Color
Post Date
HP and Torque
/in TECHNICAL NEWS, What's New /by nnjr-pcaHorsepower and Torque
by Art Meltzer
It is common knowledge that horsepower and torque are related. Some readers may be aware of what I like to call “the equation” horsepower = torque*rpm/5252. The derivation of “the equation” is beyond the scope of this article however if the reader is interested contact me by email and I will send it to you. My guess is that few of us have insight as to how to apply the equation to the performance of our cars.
A common misconception is “horsepower determines how fast the car will be going when it hits a wall and torque determines how far your car will push the wall”. The initial half of this statement is accurate and the latter half is not. To begin my discussion, I would like to introduce the concepts of torque, work and power.
For units lets use our pounds for force, feet for distance, and minutes for time. Torque (T) is defined as a twisting force applied at a distance. To quantify torque one simply multiplies the force applied (F) times the distance (d) from the application of the force to the object undergoing torque so that T=F*d.
Work (W) is defined as a force F applied to an object causing it to move a distance d. Or W=F*d. For example, if a 10-pound object is removed 60 feet than the amount of work is given by W=60ft*10lbs = 60ft-lbs.
Power (P) is work divided by the time necessary to perform the work. If the 60 foot-pounds of work in the example above is performed in 1minute P=60ft-lbs/min. If the work is performed in 1 hour then P=60ft-lbs/60min = 1ft-lb/min.
In the beginning of the 18th century horses were commonplace and everyone was aware of the power of a horse. James Watt (whose name is immortalized on every lightbulb) determined that the average horse could pull 33,000 pounds 1 foot in 1 minute. Using this he established that one horsepower equals 33,000 foot-pounds per minute of power. Ironically, in the 21st century no one is familiar with the power of a horse but the concept of horsepower is forever embedded in our lexicon.
A gasoline engine is a device that converts the chemical energy stored in gasoline to the mechanical energy of a rotating shaft. Power and torque are two metrics that portray the performance of the engine. That power and torque describe the same phenomenon – engine performance – indicates that power and torque are equivalent concepts. This equivalence can be appreciated by noting that if you measure engine torque on a dynamometer you can use “the equation” to reconstruct HP and vice-versa. Being equivalent concepts, it cannot be said that horsepower means one thing and torque means something else.
As an analogy, consider the purchase of a new Porsche. Currently the German mark is worth $0.57 American. That the number of dollars differs from the number of marks necessary to pay for the car does not mean there is a cost difference in buying the car with marks versus dollars. It means that marks and dollars perform differently as a metric of value but when one takes into account the relationship of the mark and the dollar their purchasing power is equivalent.
One interpretation of “the equation” is that it allows us to separate power into torque (twisting force) and rpm. Torque delivered to the drive wheels is responsible for acceleration.
When accelerating, your engine will cycle in each gear from 4000 rpm-9000 rpm while your wheel speed is constantly increasing. Assuming that there is no loss of energy throughout the drive train the power attained at the crankshaft will be the same as the power delivered to the wheels. “The equation” tells us that the only way this can happen (keeping the power at the rear wheels equal to the power at the crankshaft) is for the torque at the rear wheels to diminish as the rear wheel rpm increases. The loss of torque at the rear wheels at high speed is a major factor explaining why a car’s rate of acceleration decreases as its speed increases.
“The equation” can also give insight into why the torque/horsepower graph has its characteristic appearance. If we divide both sides of “the equation” by torque it looks like:
HP/T = rpm/5252
Consider the case when the rpm is less than 5252. In this case rpm/5252 is a fraction less than 1 so HP/T must be a fraction less than 1. The only way that happens is if horsepower is less than torque. So, the horsepower graph is always below the torque graph when the rpm < 5252.
In a similar fashion if the rpm is greater than 5252, then horsepower > torque and the horsepower graph is always above the torque graph when the rpm > 5252. Lastly, when rpm equals 5252 the curves cross and horsepower equals torque.
Hopefully, this discussion will help to demystify the horsepower/torque relationship.
917 at Spa!
/in DRIVER ED NEWS, NNJR BLOG, VIDEOS, What's New /by nnjr-pcaGreat 997 plug change and Spring cleaning
/in CONCOURS NEWS, TECHNICAL NEWS, What's New /by nnjr-pcaThanks Kevin, this is a great example of a “while you’re doing this maintenance, why not do little update and clean up as well.”
DIY 997 Plug and coil replacement