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, 2008. Sponsor fee is $300 for each class. 2008 TITLE SPONSOR is available for the year end Member's Banquet for $1,500.

3. ALL CLASSES will have Bridgestone Spec Tire program in 2008 for Michiana Raceway Park. These race event tires must be purchased from MRP Motorsport or Michiana Raceway Park. 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 Bridgestone YJP.

- - 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. HALF PRICE ENTRY! Required tire is Bridgestone YGL.

2. ROOKIE 1 - (ages 7-11) - 200 lbs. 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 - 2008: 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.

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 the current Bridgestone YHC compound 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. Firestone YFA (5.00 front - 6.50 rear)

5. Yamaha Junior Sportsman - (ages 8-12) - 250 lbs. Bridgestone YHC tires.

6. Yamaha Junior Can - (ages 12-15) - 305 lbs. Bridgestone YHC tires.

7. Yamaha SSX Senior - (ages 15 & up) - 345 lbs. Bridgestone YHC tires.

8. HPV 4 (ages 15 & up) - 360 lbs. Bridgestone YJB tires.

9. 125cc Sr. Shifter - (ages 15 & up) - 385 lbs. / 80cc Jr. Shifter - (ages 12-15) - 330 lbs. Bridgestone YHB tires. All shifters, 80cc Jr., 125cc Moto, ICC classes to run together.

10. IAME CUP (Touch and Go) - (ages 15 & up) - 375 lbs. - BY WKA RULES.IAME Leopard engines only. Bridgestone YHC tires.

11. ROTAX MAX information below.

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

All Rotax classes will use Motul spec oil and MS 93 purchased from MRP at the track.

ROTAX Masters - 405 lbs - MoJo D2 tires.
ROTAX International - 365 lbs - MoJo D2 tires.
ROTAX Junior - 320 lbs - MoJo D2 tires.
ROTAX DD2 - 385 lbs - MoJo D2 tires.

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

- $35 FOR MEMBERS / $45 FOR NON-MEMBERS

- Transponder Rental - $10

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

- Season Practice Passes Available. - Email MRP Motorsport for details.

- Season Parking Passes Available. - Email MRP Motorsport for details.

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

For more information contact MRP Motorsport by phone (269-756-9133) or by EMAIL.