MRP Class Rules & Regulations

     
  

WKA Rules except where noted.

1. Drivers allowed THREE (3) drops for championship points.

2. It takes (5) entries to make a class. All classes will need to have a class sponsors by April 1. Sponsor fee is $500 for each class. TITLE SPONSOR is available for the year end Member's Banquet for $1,500. Rotax class sponsorship is $2,500.

3. ALL CLASSES (with the exception of ROTAX classes) will have Bridgestone Spec Tire program for Michiana Raceway Park. These race event tires must be purchased from MRP Motorsport or Michiana Raceway Park (and have an MRP stamp). The Bridgestone YHC will be approved spec tire (unless otherwise noted in class list below). To compete on race day, you must have the proper tire for your class. Consult with race director for any exceptions. The approved RAIN TIRE is the YJP or YKP. For Rotax classes it is MOJO W2.

- - CLASS AGES, WEIGHTS & TIRE REQUIREMENT: - -

1. KID KART RACING - (ages 5-8)- No weight limit. Stock COMER 50 engines only (with claim rule). Class will run first practice at 2:00pm local time. RACE will run at conclusion of normal club events. FREE ENTRY! Required tire is Bridgestone YGL or YJL.

2. ROOKIE 1 - (ages 7-11) - 200 lbs. Bridgestone YJC tires. The Rookie 1 program in 2007 was a developmental project. We knew that there would be adjustments along the way but overall the class and direction has been a resounding success. Over the course of the last couple of months, we have seen a few misunderstandings. Due to this, we are offering clarifications in order for the class to continue to grow and be fair and fun. The goal of the Rookie 1 class at Michiana Raceway Park is to provide a safe-haven for learning about karting while attempting to control costs.

UPDATE - February 2008: The original purpose of incorporating the ROOKIE 1 class was intended to bring new people in at a young age by stepping them up from kid karts to a stock Yamaha, with restricted carb and exhaust. As a trade out we would not have to add the extra weight needed on these small kids that made lifting a kart a backbreaking job for parents. Our goals were sincere and simple. Yet this past year a few outside avisors got parents stirred up and started a motor battle to try to win races. In light of that past experience and mis-communication we have added rules to tighten the interpretations. (SEE RULES UPDATE-2008)

Our mission is simple. We are here to attempt to create a sealed motor, level playing ground, with strict rules enforcement. Anyone who wishes a more open field of racing is encouraged to move to Micro or Mini max or to the KT100 sportsman category. The past two years of experience with the Rookie 1 class has been successful and we have new people joining us this year. Do not try to twist the intent of this class by finding ways to bend the rules. This will violate the spirit and intent of this class.

RULES UPDATE: All Rookie one participants are required to run STOCK KT 100 motors. They will go through an inspection and sealing process only through the authorized MRP inspector. This fee is $100. It is also required to purchase a certified carb (Carb model - WA55-1) prepared by Laukautis Racing via the MRP Pro Shop.

The inspection must be completed within 2 weeks prior to racing begins. If you are planning an engine rebuild, the inspection and sealing charge is covered in the cost of the rebuild through the MRP-Approved re-sealing agent.

RULES UPDATE: 209.3 REAR BUMPER: All Karts must be equipped with a rear bumper to protect the driver and Kart from rear impact and to keep the following Kart from reaching the rear tires. The Bumper may be either CIK style "Rear wheel protection" or a double bar design.

ROTAX: JUNIOR, SENIOR AND MASTERS CLASSES, must have CIK Plastic. Micro and Mini can still use the hoop.

USRMC 3.0 BODY WORK - BUMPERS – NERF BARS –

ALL CLASSES - CIK RULE 2.5.3 REAR WHEEL PROTECTION -
In all conditions, the rear protection must at no time protrude beyond the external plane of the rear tires.

RULES UPDATE: JUNIOR, SENIOR AND MASTERS CLASSES:

CIK RULE 2.7.1.4
Side pod protrusion rule outboard of the quadrilateral formed by the four wheels is applicable.
“WET CONDITIONS” – Side body work may not be located outside the plane passing through the outer edge of rear tires.

CIK Rule 2.5.3
Rear Wheel Protection – In all conditions, the rear protection must at no time protrude beyond the external plane of the rear wheels.

Rear Protection- CIK Homologated plastic rear protection system required. Non homologated systems may be submitted to USRMC National Technical Director for approval. No modifications to chassis in regards to mounting of rear protection system. Minimum width of rear protection system under all conditions 134cm.

The following represents the specified carb settings:
- Pop-Off is to be set between 12-14 lbs.
- The fulcrum height is at .060 below the deck w/o a gasket
- Suggested needle settings are 2-1/2 on low-speed and 1/2 on high-speed (will need to be leaned slightly in hot summer months)

Kent Laukaitis has been very active in working with the Walbro carbs and is considered to be one of the leading experts in his field. MRP chose a single-source to supply carbs set to a specified setting in an effort to assist all of the competitors in having less to worry about and increase the fun level at the track.

- The cost of the carb is $92.50

- These carbs will be numbered by MRP Tech

- They will only be allowed to be rebuilt under the direction of the technical inspector
at the track

- Your engine will be sealed. If there are any alterations to be made to the engine
(such as cleaning the carbon off the piston) this will require the presence of the
technical inspector and a fresh seal. The cost of a new seal is $10

- The spec clutch this year is the L&T Mini. (part #: 2142-m-11) w/ an 11-Tooth driver.

MOTOR & CLUTCH CLAIMING RULES:
Engine Claim Rule: Complete engine packages may be claimed "as is" off any kart including the motor, carb and clutch. It does not include air filter cup, chain guard, exhaust and throttle swivel assembly. This price is to be determined for claiming rights at the time of the claim at the prevailing market prices of all new materials from the same suppliers including the price of motor inspection.

- Motor claim price is $695 (prices subject to change) plus new carb price of $92.50
- Clutch claim price is $280

The race director may decide to claim a motor. If he does, that motor is retired from the program and is replaced with a new stock KT100.

ROOKIE 1 RULES & SPECS:
Engine: Box-stock Yamaha KT-100 (known engine from a reliable source, inspected and with cc's set to 11.7 by the designated MRP engine official. It is to have the RLV YBX 3 hole box muffler along with the spec Laikaitis Racing Walbro carb.. The fee for sealing and setting the engine is $100.) There can be NO blueprinting done – engines must remain BOX STOCK.
Chassis: The chassis is to be a 28mm tube kart (which works best in this category.)
Tires: Tires are to be Bridgestone YHC (rains - YJP or YKP) tire purchased and stamped through MRP only.
Clutch: The clutch is to be a single disc L&T MINI, 600-series with an 11-tooth driver. Part # is: 2142-m-11

3. Animal Junior - (ages 15 and under) - 325 lbs. Bridgestone YJB (4.5- front - 6.00 rear)

4. Animal Senior - (ages 15 & up) - 375 lbs. Open tires.

5. Yamaha Junior Sportsman - (ages 8-12) - 250 lbs. Bridgestone YHC (rains: YJP/YKP) tires.

6. Yamaha Junior Can - (ages 12-15) - 305 lbs. Bridgestone YHC (rains: YJP/YKP) tires.

7. Yamaha SSX Senior - (ages 15 & up) - 345 lbs. Bridgestone YHC (rains: YJP/YKP) tires.

8. 125cc Sr. Shifter - (ages 15 & up) - 385 lbs. / 80cc Jr. Shifter - (ages 12-15) - 330 lbs. Bridgestone YJB tires. All shifters, 80cc Jr., 125cc Moto, ICC classes to run together.

9. ROTAX MAX information below.

- - MRP RMax Challenge Series Classes: - - NOTICE: Tire Rules Subject to Change!

Tires: MOJO D2 tires for all classes as per rulebook and D3 tires for DD2. Rain tires, MOJO W2.

Micro Max-----Age 7 to 10-----235 lbs. minimum
Mandatory use of Rotax Micro Max package. Spec gear 14 x 73. 95cm chassis maximum. SFI Chest Protectors required, shoulder and rib protection recommended. Once a competitor moves up to Mini Max they cannot move back down unless mandated by a local race director. ALL DRIVERS MUST NEED CERTIFICATION FROM MRP RACE STAFF TO COMPETE.

MiniMax-----Age 9 to 12-----265 lbs. minimum
Mandatory use of junior cylinder and restrictors as specified by ROTAX, or other restrictors that may be required by the 2009 USRMC Rules Primer. National spec gear is 13 x 82. Chassis per 2008 USRMC Rules Primer. SFI, Chest Protectors mandatory, shoulder and rib protection recommended.

Junior*-----Age 13 to 16-----320 lbs. minimum
Mandatory use of a junior cylinder without exhaust valve. Competitor must reach the age of 13 by October 31, 2010 (see note_1 below). No Junior class competitor may attain the actual age of 17-years-old prior to October 31, 2010. SFI approved Chest Protectors recommended.

Senior Max-----Age 15 & up-----365 lbs. minimum
Competitor must reach the age of 15 by October 31, 2010.

Master-----Age 16 & up-----405 lbs. minimum
Official Masters class age is 32. The age of 32 must be reached by October 31, 2010.

Competitors of competition age less than 32-years-old (competition age) must reach the age of 16 by October 31, 2010 and have a minimum driver weight of 190 pounds including all race apparel except helmet.

DD-2-----Age 15 & up-----385 lbs. minimum
Competitor must reach the age of 15 by October 31, 2010

DD-2 Masters    Age: 32 & up    415 lbs. minimum 
Competitor must reach the age of 32 by October 31, 2010 

Additional information of the United States Rotax Kart Challenge can be found at:
www.rotaxmaxchallenge.com

- - ENTRY FEE & PIT-PASS PRICING: - -

- MRP Championship Series Membership Fee - $65

- ENTRY FEE: $45 FOR MEMBERS / $60 FOR NON-MEMBERS / $65 ANIMAL W/ OPEN TIRES
- Rotax Member Class Entry Fees: $50
- Rotax Non Member Entry Fees: $65

- Kid Kart: No Charge
- Mini Max: No Charge

- Transponder Rental - $10

- Pit Passes: $10 (single day), $15 (2-day), $20 (3-day)

- Practice Fees: $35 weekends, $50 weekdays (Includes Pit Pass)

- Pit Spot Parking: $300/season, $30 per day for members (club races only)

- Season Practice Passes Available. - Email This e-mail address is being protected from spam bots, you need JavaScript enabled to view it for details.

- Season Parking Passes Available. - Email This e-mail address is being protected from spam bots, you need JavaScript enabled to view it for details.

All junior drivers must have parents or guardians sign a Parental Consent Waiver. You may download this HERE.

For available pit spots in 2010 Click HERE

For available garages in 2010 Click HERE

For more information contact MRP Motorsport by phone (269-756-9133) or by This e-mail address is being protected from spam bots, you need JavaScript enabled to view it