All of our rules share a common format with rule categories that appear in the same order. This allows classes to be compared category by category, eases finding all of the details about a specific area, and makes end-of-season review and modification clearer and easier.

Within the rules, all actual rule changes from the previous year (not spelling, wording, or format changes) are highlighted in gray. The following Change Summaries on this page list the important highlights and do not specify every little rule change.

For anyone who has not seen the symbol before, “§” stands for section or category. So §1.3 means section 1.3 in the rules.

You will need a PDF file reader to display and print these rules. A free standard PDF plug-in for almost all internet browsers is available from Adobe Software. To start the installation process from the Adobe website, just click on the Adobe Reader image at the left.

To open the file in your browser, click on the “Download Rules (.pdf)” link just below the class name. To download the file to your computer, right-click the Download Rules (.pdf) link to bring up the context menu and select “Save Link As..” or “Save Target As…”.

Lakeport Policy Statements

1. Any modifications not covered in these rules will not be allowed unless approved by Speedway Officials
2. Equipment will not be considered legal simply because it went through inspection unobserved or because a rule has not been written against it.
3. Cars are subject to inspection at any time.
4. Officials reserve the right to confiscate and hold any parts and/or equipment not conforming to the rules
5. Officials reserve the right to judge, decide, and establish what constitutes a legal part of car.
6. Weight may be added or adjusted at any time to benefit or equalize the racing program.
7. OFFICIAL’S DECISIONS ARE FINAL

Lakeport General Rules

2008 General rules are pending N.C.R.A. board approval.

Lakeport Modified Rules

Download Rules (.pdf) updated 2008-02-05

Change Summary

• §8.3: A 604 GM crate motor may be run without restrictor plate. Crate motor must remain in sealed condition as supplied by GM and in conformance to the current Circle Track Crate Engine technical manual part 88958668. Changing of any components of the crate motor is not allowed, (i.e. Rocker arms and valve springs). Any rebuilding of 604 crate motor must conform to rebuild policy in General Rules. Track Promoters reserve the right to exchange crate motors if tampering is suspected.
• §8.11.2.1: Both two (2) and four (4) barrel carburetors must run with an N.C.R.A. designated restrictor plate. …
• §8.11.2.2: A restrictor plate is not required for GM 604 crate motors.
• §9.3.10: An emergency fuel shut-off valve must be mounted by the fuel tank, in plain sight, clearly labeled, and easily reachable by track officials.
• §11.3: Transponders
• §11.3.1: Must be located 13′ from the tip of the front nose of the car with a clear sight of the track surface.
• §11.3.2: To pass technical inspection, the transponder must be in place prior to inspection and must remain in working condition for the rest of the event.

Lakeport Bomber Rules

Download Rules (.pdf) updated 2008-01-01

Change Summary

• §6.16.1: After-market nose pieces are now allowed.
• §16.8.1: A new tire is to be specified.
• §9.2.11: An emergency fuel shut-off valve must be mounted by the fuel tank, in plain sight, clearly labeled, and easily reachable by track officials.
• §11.3: Transponders
• §11.3.1: Must be located 13′ from the tip of the front nose of the car with a clear sight of the track surface.
• §11.3.2: To pass technical inspection, the transponder must be in place prior to inspection and must remain in working condition for the rest of the event.

N.C.R.A. Mini-Stock Rules

These rules reflect the start of an evolution of the Mini-Stock class back to a stock four-cylindar car, and to accomodate Mini-Stock racers and racing all over Northern California. The car count seen this season will determine the evolution of this class next season.

Download Rules (.pdf) updated 2008-01-01

Change Summary

• §2.2: Maximum truck wheelbase of 105″ ±½”
• §3.2: Maximum left-side weight 57%
• §8.3: Maximum engine displacement 2,600cc
• §8.11: Duel valve springs allowed for 2008 season, duel valve springs will not be allowed for 2009 season.
• §8.17.1: A box stock 500 or 350 C.F.M. Holley carburetor based on part #4412 design shall be used. All air entering the engine must pass through the venturi. Blocking the power valve is permitted. Choke blade may be removed. Jets and power valve may be changed to enhance performance. No other after market carburetors shall be allowed. Vacuum orifice on the base shall be accessible for inspection.
• §8.17.2: A $250.00 carburetor claim is in effect for this division.
• §9.2.1: Must be located on the opposite end of the car as the engine (usually the trunk).
• §9.2.12: An emergency fuel shut-off valve must be mounted by the fuel tank, in plain sight, clearly labeled, and easily reachable by track officials.
• §13.1.2: The bell housing must have a removable clutch inspection plate. Clutch must be accessible for technical inspection at anytime and transmission might be removed.
• §11.3: Transponders
• §11.3.1: Must be located 10′ from the front nose of the car with a clear sight of the track surface.
• §11.3.2: To pass tech, the transponder must be in place prior to inspection and must remain in working condition for the rest of the event.

Lakeport Street Stock / Bonus Bomber Rules

This is a new stock class with less restrictions than a Bomber class and no passenger. These rules are intended to allow both Street Stocks and Modified Bombers to compete together in the easiest way possible.

These rules are still evolving due to the recent race format change, and will be updated soon.

(Note: These rules are not yet in the standard format)

Download Rules (.pdf) updated 2008-01-01

Lakeport Boat Race Rules

Bomber or demolition style cars dragging boats around a water-soaked track, hunting and destroying other boats while protecting their own. It’s maritime mayhem on the high asphalt.

Download Rules (.pdf) updated 2008-01-07

Change Summary

• §5.9.1: Will be chosen from a panel of fans that are randomly elected from the grandstands. The last three remaining boat racers with more then 3′ of their boat will be eligible to win, and will be given a score from each fan on the panel. The driver that receives the most points will win the event.

Lakeport Slider Rules

Front-wheel drive cars with sliding plates instead of rear wheels. The object is to loop the track without looping the cars – or not.

Download Rules (.pdf) updated 2008-01-07

Change Summary

• §7.3: Seat Belts
• §7.3.1: There must be one (1) horizontal bar behind the seat, no lower then 2″ below the shoulders of the driver, with two vertical posts on each side of the car. The bar and post my be welded or bolted in place.
• §7.3.2: Seat belts must be 5-point, must thread over the top of the roll bar, and must be mounted lower than the roll bar.

2007

2006

2005