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Owosso Kart Speedway - OKS

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Race Day Forecast

Track Status

Green Flag Racing

Winners April 2, 2025
Recent AnnouncementsSee All Announcements
Race Canceled 6/1/24
With much sadness we have to cancel Races tonight 6/1/24 due to weather. Mother Nature wins again. Looks like the rain will move in around 6:00-7:00. We would hate to get you here and then send you home. I hope you all have a wonderful day. Please share to spread the word.
Posted: Jun 1, 2024
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Sat June 1st June Bug Thriller Purse for Animal & Clone Heavy
Sat June 1st June Bug Thriller Purse for Animal & Clone Heavy. 1st $300 2nd $200 3rd $100 ($35entry fee) Sat. Kart Races- Gates open at 2pm, Practice at 4pm, Racing at 6pm
Posted: May 25, 2024
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Sat. May 11th & Sun. May 12th
Sat. May 11th Kart Race #2 Gates open at 2pm, Practice at 4pm, Racing at 6pm. Sun. May 12th AMA D-14 Motorcycle Race TT Track Gates open at 8am, Practice at Noon, Racing at 2pm. $$Combo Purse $$ 1st $350, 2nd $250, 3rd $200, 4th 150, 5th $100
Posted: May 7, 2024
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Animal

Rules:

Ages 15 and Up

Min Weight 375 Lbs

WKA Animal Engine, Open Clutch

WKA Stock Animal Rules

Burris SS33A Tire Rule.

Must abide by track safety rules, including safety equipment required. All other published track rules and regulations will be enforced.

No performance enhancing fuel or oil additives are allowed.

Fire resistant, full racing suits are highly recommended.

Clone Heavy

Rules:

Ages 15 and up
Min Weight 375 Lbs.

Open Clutch, Big Pipe

AKRA clone

Approved engine: All 6 .5 clone overhead valve engines

87 Octane fuel in all gas classes, we will be checking fuel as a tech item

AKRA approved Exhaust System required.

Burris ss33A Tire Rule

Must abide by track safety rules, including safety equipment required. All other published track rules and regulations will be enforced.

No performance enhancing fuel or oil additives are allowed.

Fire resistant, full racing suits are highly recommended.

Clone Light

Rules:

Ages 15 and up
Min Weight 350 Lbs.

Open Clutch, Big Pipe

AKRA clone

Approved engine: All 6 .5 clone overhead valve engines

87 Octane fuel in all gas classes, we will be checking fuel as a tech item

AKRA approved Exhaust System required.

Burris ss33A Tire Rule

Must abide by track safety rules, including safety equipment required. All other published track rules and regulations will be enforced.

No performance enhancing fuel or oil additives are allowed.

Fire resistant, full racing suits are highly recommended.

Green Plate

Rules:

8-10 years

.425-inch maximum intake restrictor, no steering fairing allowed.

Open Clutch, Big Pipe, Burris SS33A Tire Rule.

AKRA clone

Approved engine: All 6.5 clone overhead valve engines

87 Octane fuel in all gas classes, we will be checking fuel as a tech item

AKRA approved Exhaust System required.

Burris ss33A Tire Rule

Must abide by track safety rules, including safety equipment required. All other published track rules and regulations will be enforced.

No performance enhancing fuel or oil additives are allowed.

Fire resistant, full racing suits are highly recommended.

Jr 3 Blue Plate Predator

Rules:

Ages 12-15

Min weight 300

Open Clutch, Big Pipe

Stock 212 Engine .615 bore carb,

.500 intake restrictor plate, 10.8lb AKRA legal valve Spring

Burris SS33A Tire Rule

Predator engine

Regulations prohibit the mixing of hemi and non-hemi components.

The removal of the low oil sensor and governor is allowed, and AKRA carburetors, big pipes, and 10.8-pound valve springs are permissible

The stock gas tank can be replaced with a floor-mounted tank and fuel pump, and a chain guard is mandatory.

No further modifications are permitted, and a 5900 RPM limit is enforced during racing

A $200 claimer rule is in effect for all Predator classes, requiring claimants to complete the race. Each racer is entitled to one claim per season and must utilize the claimed engine in the subsequent race. Any engine can be claimed, provided it finished ahead of the claimant, except for bolt-on components such as carburetors, exhaust pipes, and fuel pumps

No Ghost engines on any of the Predator Classes

No performance enhancing fuel or oil additives are allowed.

Fire resistant, full racing suits are highly recommended.

Jr 3. Blue Plate Clone

Rules:

Ages 12-15
Min Weight 300 Lbs.

Open Clutch, Big Pipe, Burris SS33A Tire Rule.

500-inch maximum intake restrictor

AKRA clone

Approved engine: All 6 .5 clone overhead valve engines

87 Octane fuel in all gas classes, we will be checking fuel as a tech item

AKRA approved Exhaust System required.

Burris ss33A Tire Rule

Must abide by track safety rules, including safety equipment required. All other published track rules and regulations will be enforced.

No performance enhancing fuel or oil additives are allowed.

Fire resistant, full racing suits are highly recommended.

Jr. 2 Purple Plate Clone

Rules:

Ages 8-12
Min Weight 265 Lbs.

Open Clutch, Big Pipe, Burris SS33A Tire Rule.

500-inch maximum intake restrictor, no steering fairing allowed,

AKRA clone

Approved engine: All 6 .5 clone overhead valve engines

87 Octane fuel in all gas classes, we will be checking fuel as a tech item

AKRA approved Exhaust System required.

Burris ss33A Tire Rule

Must abide by track safety rules, including safety equipment required. All other published track rules and regulations will be enforced.

No performance enhancing fuel or oil additives are allowed.

Fire resistant, full racing suits are highly recommended.

Jr. 2 Purple Plate Predator

Rules:

Ages 8-12

Min weight 265

Open Clutch, Big Pipe

Stock 212 Engine .615 bore carb,

.500 intake restrictor plate, 10.8lb AKRA legal valve Spring

Burris SS33A Tire Rule

Predator engine

Regulations prohibit the mixing of hemi and non-hemi components.

The removal of the low oil sensor and governor is allowed, and AKRA carburetors, big pipes, and 10.8-pound valve springs are permissible

The stock gas tank can be replaced with a floor-mounted tank and fuel pump, and a chain guard is mandatory.

No further modifications are permitted, and a 5900 RPM limit is enforced during racing

A $200 claimer rule is in effect for all Predator classes, requiring claimants to complete the race. Each racer is entitled to one claim per season and must utilize the claimed engine in the subsequent race. Any engine can be claimed, provided it finished ahead of the claimant, except for bolt-on components such as carburetors, exhaust pipes, and fuel pumps

No Ghost engines on any of the Predator Classes

No performance enhancing fuel or oil additives are allowed.

Fire resistant, full racing suits are highly recommended.

Ohio Stock Predator

Rules:

Age 15 & up
Min Weight 375 lbs.

Must keep everything stock, 5500 rpm rule and governor must stay in and surge, drum clutch, drill 1/4 hole in fuel cap for venting,

Burris SS33A Tire Rule

Out of box, harbor freight items #60363 Or #69730 (hemi allowed as well as older model hemi is #60363)

You may remove the gas tank and go with the floor model tank with fuel pump. Stock gas cap may be drilled with an 1/8" Hole to stop fuel starvation or vapor block.

Add top plate and throttle linkage (if removing tank) governor must remain operational

Stock air cleaner, no modifications

Stock flywheel, with key installed no modifications

5500 RPM rule which means Governor stays intact and must work, no billet flywheel

Stock exhaust no modifications

Stock Carb .032 Main Jet

Add chain guard

Drum clutch only

Bodies at Drivers Discretion.

Must abide by track safety rules, including safety equipment required. All other published track rules and regulations will be enforced.

No performance enhancing fuel or oil additives are allowed.

Fire resistant, full racing suits are highly recommended.

Open

Ages 15 and up
Min weight 375 lbs.

 Open Tire Rule

Rules:

1.  Kart and safety equipment must have passed safety inspection before taking to the track.  We reserve the right to disallow any kart from competition if officials determine it is not safe to race.

2.  Can run both drum or axle clutchs

3.  May run any gear ratio.

4.  Must abide by track safety rules, including safety equipment required.  All other published track rules and regulations will be enforced.

5.  No performance enhancing fuel or oil additives are allowed.

6.  Fire resistant, full racing suits are highly recommended.

7. All motors must have a muffler.

 

Rookie Red Plate

Rules:

Ages 5-7 years

.375-inch red restrictor plate.

Open Clutch, Big Pipe, Burris SS33A Tire Rule.

AKRA clone

Approved engine: All 6 .5 clone overhead valve engines

87 Octane fuel in all gas classes, we will be checking fuel as a tech item

AKRA approved Exhaust System required.

Burris ss33A Tire Rule

Must abide by track safety rules, including safety equipment required. All other published track rules and regulations will be enforced.

No performance enhancing fuel or oil additives are allowed.

Fire resistant, full racing suits are highly recommended.

Small Block Open

Rules:

Ages 15 and up

Min Weight 375lbs.

14.5 Small Block Engine, Open Clutch

14.5ci. displacement rule

NO BILLET block, Billet heads are allowed

Billet Flywheels and billet side covers are allowed

Wedge bodies and wings are allowed

No Fuel additives

Must abide by track safety rules, including safety equipment required. All other published track rules and regulations will be enforced.

Fire resistant, full racing suits are highly recommended.

Stock Predator

Rules:

Ages 15 and up

Min weight- 375lbs.

Open Clutch, Big Pipe

Burris SS33A Tire Rule

Predator engine

Regulations prohibit the mixing of hemi and non-hemi components.

The removal of the low oil sensor and governor is allowed, and AKRA carburetors, big pipes, and 10.8-pound valve springs are permissible

The stock gas tank can be replaced with a floor-mounted tank and fuel pump, and a chain guard is mandatory.

No further modifications are permitted, and a 5900 RPM limit is enforced during racing

A $200 claimer rule is in effect for all Predator classes, requiring claimants to complete the race. Each racer is entitled to one claim per season and must utilize the claimed engine in the subsequent race. Any engine can be claimed, provided it finished ahead of the claimant, except for bolt-on components such as carburetors, exhaust pipes, and fuel pumps

No Ghost engines on any of the Predator Classes

No performance enhancing fuel or oil additives are allowed.

Fire resistant, full racing suits are highly recommended.

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