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Adult Predator Rules

Age: 14 &up

Weight: 360 lbs

Tires: Non Tech

Payout: 80% payback

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NO INTERNAL ALTERATIONS ALLOWED. ANY ALTERATIONS WILL BE SUBJECT TO THE CHEATING AND CLAIM REFUSAL SECTION.

   

Any attempt to circumvent these rules by adding a performance enhancing product example: Replacing stock cam or stock springs, shall be considered as an intentionally illegal act and will result in disqualification for that race day.

 

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Cheating and Claim Refusal:

If you refuse a claim you can no longer race in the class. 

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Those who choose to race in this class enter with the knowledge and acceptance of the fact that this is a "Claimer" class. If your engine is claimed by another competitor, you must remove your engine and give it to the Tech Man, minus any non-claim parts; no arguments and no foul language or threats to anyone. If you cannot or will not abide by these rules, do not enter a kart in this class. Failure to surrender an engine when claimed will result in a loss of the current season's points up to and including the date of the claim and removal from the class.

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If you are caught cheating, The first offense is a DQ and loss of points for the night, The second is a two race suspension, and the third is removal from the class for the remainder of the year. 

 

Promoter has the option to claim a motor at any time.

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Rules:

​       All parts must be stock factory production parts unless otherwise specified within these written rules. No alteration, cutting, grinding or machining of parts allowed. No sandblasting or tumbling parts are allowed. This is strictly prohibited. All parts will be subject to comparison to know stock parts. If it is not specifically written in the rules that something can be done all OEM parts must remain stock. Parts cannot be changed or modified. No interchanging of parts between Hemi and Non-Hemi models.

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Engine Description:

- Single Cylinder, Harbour Freight Predator engine with 212 cc displacement.

- No Honda Engines.

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Fuel:

- 87 Octane pump gas only, Track may designate between ethanol and non-ethanol fuels

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CC Check:

- Every engine is subject to a CC check if promotor deems necessary.

- Non-hemi will be 27.8 cc min

- Hemi will be 28.8 cc min. 

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Piston:

- Must be stock unaltered piston only

- 2.756" max diameter measured at skirt

- Piston and head must be of the same make and model

- Dish top pistons must be used with Non-Hemi heads

- Flat top pistons must be used with Hemi heads

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Head Gasket:

- No swapping of head gaskets between Non-Hemi and Hemi heads

- Hemi must run OEM thick gasket

- Non-Hemi must run OEM thin gasket

- No copper, aftermarket, or performance gaskets allowed

- Sealer may be used on Non-Hemi gasket to stop leaks

- Non-Hemi can use two (2) gaskets to comply with CC check

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Head:

- Stock unported heads only

- All defined edges must remain on head ports

- Hemi head must be run on Hemi block

- Non-Hemi head must be run on Non-Hemi block

- Head and block can be checked for flatness and be flattened if need be to ensure proper mating surface. 

- No milling the block or head

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Crankshaft:

- Must be stock and unaltered

- No twisting of the crank or cam gear

- Governor gear may be left in place or removed

- No other mods or changed to crank allowed

- Max stroke is 2.169"

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Rod:

- Stock cast rod only

- No cutting, grinding or polishing of rod

- No billet rods allowed

- Stock length is 3.308" (-.003/+.002) to be measured center to center

- Inside of wrist pin hole to inside of crank journal hole is to be 2.353" to 2.357" in length

- Rod oil hole to be checked with .180" no-go

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Flywheel:

- Stock, cast, unaltered flywheel only, No altering plastic cooler fins

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Camshaft:

- Stock cam cores only

- No cheater stock, c.m. ground, mod2 or BSP cams

- Compression release must be in place and functional

- Cam base circle for Hemi is .865" (-.005/+.010)

- Non-Hemi can be the same as Hemi but as large as .985" (+.003)

- Duration check for intake/exhaust, Hemi and Non-Hemi to be taken at pushrod

- Intake duration @ .050 lift is 222° max

- Intake duration @ .200 lift is 88° max

- Exhaust duration @ .050 lift is 225° max

- Exhaust duration @ .200 lift is 99° max

 

 

Claiming an Engine:

Claim Fee is $200

(Promoter has right to claim a motor at anytime)

 

Essentially, the "claim" made on an engine contains only the parts which were on the engine when it was originally purchased, with the exception of the removed governor. CANNOT CLAIM MORE THAN TWO MOTOR'S A YEAR.

 

Who can claim: Anyone that is on the same lap as the leader at the finish of the race can claim, Priority claims go from last place to 2nd, if a last place claim is made on the leader, it takes priority over anyone who finishes in front of them. You cannot claim if you are a lap down even if you are in last place, you must be on the lead lap. Only the leader of the race can be claimed.

 

In the event of a claim on an engine with a floor mounted fuel tank, the floor tank, auxiliary fuel pump and top plate are not included in the claim.

 

Exhaust system (header pipe and muffler) are not part of any claim made, and shall remain the property of the engine owner. 

 

Motor mount, clutch, chain guard, spark plug, and aftermarket throttle linkage are considered non-engine add-on's, and are not part of the claim.

 If your engine is claimed by another competitor, you must remove your engine and give it to the Tech Man, minus any non-claim parts; no arguments and no foul language or threats to anyone. If you cannot or will not abide by these rules, do not enter a kart in this class. Failure to surrender an engine when claimed will result in a loss of the current season's points up to and including the date of the claim. If you refuse a claim or are caught cheating with illegal parts on or in engine  you can no longer race in the class. 

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