The IMSA Prototype Challenge Championship was developed to support the IMSA WeatherTech SportsCar Championship – the premier SportsCar racing series in North America. The series offers racers from around the world the opportunity to compete at historic venues like Daytona, Sebring International Raceway or Road Atlanta.
The Series mission is two-fold: present an opportunity for semi-professional race car drivers to compete in a world-class environment racing state of the art closed cockpit LMP3 prototypes. While also providing an avenue for drivers to move up the ladder into the Prototype classes in the WeatherTech SportsCar Championship.
Following the worldwide LMP3 (LeMans Prototype 3) platform and category, IMSA introduced the Prototype Challenge Championship new in 2017. The state of the art closed cockpit LMP3 prototypes will compete in a 6-round schedule in 2019. All 6 events will be part of the IMSA WeatherTech championship weekends.
All races are run in an endurance race format with an two-driver line-up. Four races will be 1-hour 45-minutes long including one mandatory pit-stop for refueling, tire and driver change. Two races will be 3 hours long. Only silver rated (Semi-Pro) drivers and bronze (Gentlemen) drivers are eligible to compete. Only one silver rated (Semi-Pro) driver is allowed per line-up with a minimum required drive time per race for the bronze (Gentlemen) driver of 40 minutes.
Ligier and Norma LMP3 Race Cars
Onroak Ligier JSP3 LMP3 or Norma
Carbon fiber monocoque / HP COMPOSITES built to FIA standards
NISSAN VK50, V8, 5000 cc, 420 hp
Up to 185mph
0-60 3.3 sec.
X-TRAC six-speed sequential gearbox with semi-automatic paddle shift system
Double wishbone, pushrod and spring-damper combination, 3 ways latest generation of dampers, adjustable anti-roll bar system.
FIA headrest/side head restraint, compatible with HANS device.
Front track 61.5", rear track 58.5", wheelbase 100.5" and weight 1090 lbs.
Cockpit adjustable bias, master cylinder, 6-piston callipers, Ø 14’’ front and rear steel discs
Magnesium, Ø 18’’, front width: 12,5’’, rear width: 13’’, center lock
Adjustable shocks, sway bars, brake bias and wing angles
Pi 30-channel system with steering wheel display
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