USRMC Max Tech August 2009

This notice is designed to refresh the memories of veteran Rotax Grand National competitors and be informative for new Rotax Grand National competitors. Several changes have occurred since the 2008 national event. Please carefully read “2009 Grand National Tech Advisory” dated July 15, 2009 at “Press Room” www.rmaxchallenge.com.

• The technical rules in effect for the event are the US RMax Challenge Primer, Rotax Max Challenge Technical Regulations, current version as published by Rotax-Powertrain and CIK-FIA Technical Regulation. The hierarchy is as listed, when in conflict, the US national Primer supersedes the Rotax Tech Spec and Rotax Spec supersedes the CIK rules.
• US National Rules Primer – www.rmaxchallenge.com
• ROTAX Technical Specification – www.maxchallenge-rotax.com
• CIK Technical Regulation – www.cikfia.com

• Specified tires and fuel for the event:
DD2 will use MOJO D-3 slick tire. All other classes will use MOJO D-2 slick. The specified rain tire for all classes is MOJO W-2. Each competitor must bring to parc ferme, his own new and unmounted rain tires, maximum of four fronts and four rears Mini Max and Micro Max 1 set of 4 tires. Plastic wrap is not required but molding nibs are required as evidence of being new. Event administration reserves the right to allow introduction of additional rain tires as conditions dictate. New rain tires will be available for purchase in parc ferme.
All classes will use VP Racing Fuels Motorsports 93 unleaded gasoline as supplied by event organizer, mixed ratios between 32:1 and 50:1 with Motul 800 2T factory full synthetic oil. One bottle will be supplied with entry, additional oil must be purchased in parc ferme!

• Pre race scrutineering – “Pre Tech” will be performed on Tuesday only. At this time you will declare the one chassis you are allowed, and up to two engines. Numbered chassis seals will be issued and recorded at this time, engine serial numbers as well as top and bottom seal numbers will be recorded at this time. From this point forward, this is the only equipment allowed on race track for entirety of the event. Any change of chassis must be approved in advance by Chief Scrutineer. Only damaged chassis may be replaced. Any chassis at any time during event is subject to verification of a declared chassis, declared engine, associated to that chassis. YOU MUST ONLY USE DECLARED EQUIPTMENT FROM THE ONSET OF WEDNESDAY PRACTICE!
• Engine Passports – Engine Passports are required at pre-tech scrutineering and throughout the event, all classes. Engines must remain sealed at all times from scrutineering forward except by permission of Chief Scrutineer.
Only engines of US origin are allowed. All engines subject to verification of origin.
The last entry on the passport must be accompanied by the responsible service center’s stamp. Hand written entries will not be accepted. Verify your passports before you leave for event, correct any passport irregularities.

Dual seals requirements – Valid secondary crankcase seals are required at this event!

Parc ferme procedures – Rotax Junior, Rotax Senior, Masters, DD2 classes will be under parc ferme regulations for this event.
No fluids will be allowed into parc ferme, including chain lube.
Only one mechanic and driver will be allowed in parc ferme. Only one mechanic and driver will be allowed on grids.
All parts and tools must enter parc ferme through entry gate. Passing anything over a fence into parc ferme or grid area will result in immediate exclusion from competitive element involved.
For slick tires, each competitor will check in at least two front and two rear tires, and maximum of four front and four rear tires. These are the only tires acceptable for use in competitive elements of the race program from the onset of qualifying through the end of the event. Should you check in more than four tires total, the tires are free to manage as you see fit, though only one set is allowed on grid at any time. In the event a “wet” race is declared, it is permissible to bring one set of slicks and one set of rains to the grid.
For any practice sessions it is not possible for you to use your race tires or race fuel. If you have only one fuel tank, it must be brought empty to parc ferme prior to first competitive element each day.
Fuel must be purchased at track. Your fuel “jug” and fuel tank will be checked into parc ferme at a specified time. All openings of fuel tanks and fuel containers must be capped or sealed in parc ferme. We will be using several test to verify fuel, contaminated containers may affect test results. You will be responsible to mix and manage your fuel in parc ferme. Specified ratio is 32:1 to 50:1 range.
• Pre grids – No working on Karts will be allowed on pre grids. Exception will be only if a “wet race” has been declared.
• Event administration may introduce supplemental rules for parc ferme.

• Mini & Micro Max – 2009 PRIMER CORRECTION
Section one, page 1, Bullet “Wide rear bumpers” delete wording “except in wet conditions.”
Mini Max- No spec main jet.
Mini Max & Micro Max tires will be marked at the time you pick them up,
these tires only are allowed except in case of damage. Contact tech director
in case of damage.
Qualifying – New tires only, no scrubbed tires.
Mini Max & Micro Max fuel is not under parc ferme, but is subject to testing
compared to known sample.
Mini Max & Micro Max – remember your full width rear protection and accredited chest protectors. You will not take the track without either.

Pre Tech tips – You will not pass pre tech without full compliance.

Event Decals – You must have your Rotax, Mojo (side pods) and NKN (driver fairing) class sponsor decals provided in your membership package displayed in proper (page 17 RMC tech manual) locations, and assigned event Kart numbers (4) during ALL on track elements.

Make sure you have a secondary brake cable of 1.8mm minimum diameter between the master cylinder and brake pedal.

All weights must have bolt of proper size and be drilled & safety wired.

Body work in Junior Max, Sr Max, Masters must meet CIK quadrilateral rule.
Stretch a string or use a hard straight edge starting from the leading edge of the rear tire, to the leading edge of front tire, with wheels straight ahead, side pods must be inside of that line. No modification to body work except for purpose of mounting or radiator clearance.
50mm clearance between driver fairing and steering wheel, driver fairing must be below top of steering wheel.

All seat mounts, seat struts must have a 1/16” x 1 ¼“ flat washer, metal or plastic between each mounting point and seat. Seat struts must be bolted to seat and chassis or removed from chassis.

Safety equipment – Snell 98 minimum helmet requirements. (last year for 98 Snell) All proper SFI and British Standards are acceptable.
Industry standard driving suits, boots and gloves are required and unaltered neck brace. Check your neck brace now. If the foam inside has been altered we will reject it. Rector must have two layer minimum, one of which must be thick. Leatt brace is accepted.

It is my hope reading this and Tech Advisory (posted July 15, 2009) you will have smooth sailing with our Tech and parc ferme procedures. It is your responsibility to know the rules. If you have any questions leading up to the Rotax Grand Nationals, please feel free to contact me at moormeister@aol.com or 1-208-420-0631 before 8pm mountain time, or see me at the track, I will never be to busy to answer questions. Please ask before you race, not after, it is to late then.

Best of Luck at the Nationals
Don Moormeister
National Technical Director
US Rotax Max challenge