National Open Wheel 600 Series (ALL)

NOW600 National Series Invading Port City Raceway...
KKM Giveback Classic Format for NOW600 Restricted...
NOW600 National at Sweet Springs Falls to Rain!
NOW600 National Series Invading Port City Raceway...

NOW600 National Series Invading Port City Raceway...

10/6/2025 -
DRUMRIGHT, Okla. (October 6, 2025) - The first of two weekends at Port City Raceway will begin with all three national divisions of the National Open
KKM Giveback Classic Format for NOW600 Restricted...

KKM Giveback Classic Format for NOW600 Restricted...

10/5/2025 -
DRUMRIGHT, Okla. (October 5, 2025) - Gearing up for the KKM Giveback Classic the format is set for the NOW600 Restricted Non-Wing Micros apart of the
NOW600 National at Sweet Springs Falls to Rain!

NOW600 National at Sweet Springs Falls to Rain!

9/24/2025 -
SWEET SPRINGS, Mo. (September 24, 2025) - Officials with the Sweet Springs Motorsports Complex and the National Open Wheel 600 Series have come to an

Latest News

NOW600 National Series Invading Port City Raceway for Three Night...

10/6/2025
DRUMRIGHT, Okla. (October 6, 2025) - The first of two weekends at Port City Raceway will begin with all three national divisions of the National Open Wheel 600 Series take center stage alongside the...more

KKM Giveback Classic Format for NOW600 Restricted Non-Wing Micros...

10/5/2025
DRUMRIGHT, Okla. (October 5, 2025) - Gearing up for the KKM Giveback Classic the format is set for the NOW600 Restricted Non-Wing Micros apart of the NOW600 Restricted Money Series at Port City...more

NOW600 National at Sweet Springs Falls to Rain!

9/24/2025
SWEET SPRINGS, Mo. (September 24, 2025) - Officials with the Sweet Springs Motorsports Complex and the National Open Wheel 600 Series have come to an agreement to cancel this weekends event due to...more

Sweet Springs Motorsports Complex Hosting NOW600 National Series...

9/23/2025
DRUMRIGHT, Okla. (Sept. 22, 2025) - The National Open Wheel 600 Series is heading to the Show-Me state this weekend for a double header at Sweet Springs Motorsports Complex. After a rain out in late...more

Friesen, Vasquez, Roberts, and Wanger Battle to NOW600 National S...

9/13/2025
DODGE CITY, Kan. (Sept. 12, 2025) - Jadyn Friesen, Zayden Vasquez, Tityn Roberts, and Lane Wanger won Friday night with the NOW600 National Series at Dodge City Raceway Park. A fielding of 38...more

Upcoming Events

2019 NOW600 Restricted 'A' Class Rules
3526
9/24/2018

9/24/2018

NOW600 National Micros


2019 NOW600 Restricted 'A' Class Rules

TeeJay Crawford Photo
DRUMRIGHT, Okla. (Sept. 24, 2018) - As the 2018 season for the NOW600 Lucas Oil National Micro Series presented by MyRacePass nears the final checkered flag, drivers and engine builders from across the country are starting work on 2019 plans.

As stated at the start of 2018, the NOW600 Restricted 'A' Class will be allowing injection beginning in 2019.

2019 Restricted 'A' Class Engine Rules:

600cc 4-cylinder 4 stroke as comes on a stock production bike for public sale in the U.S.A. No current year production engines. Except as noted, all internal and external engine parts must remain stock with no modifications, metal removal, blueprinting. Valve seat inserts may be reworked. Valves must remain as produced with no modifications. Valve springs may be shimmed with standard or aftermarket shims. Cylinder head combustion chambers may be cleaned by bead blasting with valves seated in place. Intake and exhaust ports may not be bead blasted. Cylinder head gaskets may be replaced only with original equipment manufacturer’s stock parts (All 3 layers of the head gasket must be used). All other gaskets may be replaced with duplicate aftermarket parts. Light cleaning of gasket surfaces with steel wool, Scotch-Brite, etc. is allowed. Transmission gears may be shimmed only for the purpose of proper engagement. Standard or aftermarket shims may be utilized. Aftermarket cam chain tensioner allowed for safety of motor. Fuel injection engines can run carburetors. Fuel injection engines running carburetors may change all fuel metering devices to tune fuel curve. Injection must be OEM, stock OEM throttle bodies no mixing manufacturers (i.e. Suzuki on Suzuki, Yamaha on Yamaha etc.) with OEM Boots in place. Modification of oil pan & pick up allowed or aftermarket ok. Modification to thermostat cover allowed or aftermarket ok. Modification to water pump Cover allowed or aftermarket ok. Any air box, stock appearing CDI, aftermarket washable replacement air filter. Any 600cc OEM CV carburetors (no flat slides allowed). Joes Racing Product Tulsa Shootout Carb Adapter (they will be labeled with TSO.) Restrictor Plate must be King Racing Product Restrictor Plate .750" inside diameter. No exception. Any tampering with or altering will result in disqualification.

MEDIA LINKS –

Website: http://www.NOW600Series.com

Twitter: https://twitter.com/NOW600Series

Facebook: https://www.facebook.com/NOW600Series

NOW600 SERIES –

The National Open Wheel 600 Series is in its sixth year of showcasing premier micro sprint racing throughout the country. In addition to the Lucas Oil NOW600 National Micro Series presented by MyRacePass, there are five regions – the NOW600 North Texas Region, the NOW600 Desert Region, the NOW600 Mile High Micro Sprints, the NOW600 Mountain West Region and the NOW600 Northeast Region. The featured racing divisions are Stock Non-Wing, Winged ‘A’ Class and Restricted ‘A’ Class. For more information, including the schedule, points and rules, visit http://www.NOW600Series.com.

LUCAS OIL –

Lucas Oil Products produces a premium line of oils, greases and problem-solving additives for the consumer automotive industry and also a heavy duty line of products for the industrial and agricultural markets. For more information, visit http://www.LucasOil.com.

MYRACEPASS –

There are so many aspects of running a successful race team outside of what you do on the track. It’s what you do off the track that draws the attention you need to help with your team’s recognition throughout the sport. A website is a very useful tool to keep your sponsors and marketing partners up to date with your racing. With our PRO website packages, you have the ability to track the impressions and clicks your sponsor logos receive while being on your website. You can use that as a tool to show your current marketing partners the benefits of being involved with your race team – solely on the website. You can also use those same tools to help generate new, long-lasting marketing partnerships. On top of that, a website is a great database for your career and with the power of your information gets spread throughout that entire fast-growing network of websites.

For more information about MyRacePass, be sure to check them out online at http://www.myracepass.com. For instant updates on products/promotions and contests, be sure to follow them on Facebook at http://www.facebook.com/myracepass and on Twitter, http://www.twitter.com/myracepass.

INSIDE LINE PROMOTIONS –

Inside Line Promotions specializes in affordable public relations and media management for motor sports drivers, teams, sponsors, tracks, series, events, organizations and manufacturers. ILP Founder Shawn Miller leverages professional journalism with new media technologies and social networking to improve your exposure and the return on investment for your sponsors.

To meet the media relations needs of your program by joining Team ILP, contact Shawn at 541-510-3663 or Shawn@InsideLinePromotions.com. For more information on Inside Line Promotions, visit http://www.InsideLinePromotions.com.


Submitted By: Terry Mattox

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