Liteceiver by Raceceiver Supports Challenge Series...
XL1 Race Supply to Double WISSOTA Mod 4 Rookie of...
MyRacePass Pole Award Set for 2024 Challenge Serie...
Liteceiver by Raceceiver Supports Challenge Series...

Liteceiver by Raceceiver Supports Challenge Series...

4/11/2024 -
The newest product by the creators of the Raceceiver, called the Liteceiver, has returned to support the 2024 Structural Buildings WISSOTA Late Model
XL1 Race Supply to Double WISSOTA Mod 4 Rookie of...

XL1 Race Supply to Double WISSOTA Mod 4 Rookie of...

4/11/2024 -
Hillman, Minnesota’s XL1 Race Supply has stepped up to double the 2024 pay for the top driver in the final WISSOTA Mod 4 National Rookie of the Year p
MyRacePass Pole Award Set for 2024 Challenge Serie...

MyRacePass Pole Award Set for 2024 Challenge Serie...

4/8/2024 -
MyRacePass, located in Lincoln, Nebraska, has come on board as the Pole Award sponsor for the 2024 Structural Buildings WISSOTA Late Model Challenge S

Latest News

XL1 Race Supply to Double WISSOTA Mod 4 Rookie of the Year Payout

XL1 Race Supply to Double WISSOTA Mod 4 Rookie of the Year Payout

4/11/2024
Hillman, Minnesota’s XL1 Race Supply has stepped up to double the 2024 pay for the top driver in the final WISSOTA Mod 4 National Rookie of the Year point standings. XL1 Race Supply is a distributor of XL1 Race Cars, retailer of used Mod 4’s, Duratec race engine packages,...more
Liteceiver by Raceceiver Supports Challenge Series in 2024

Liteceiver by Raceceiver Supports Challenge Series in 2024

4/11/2024
The newest product by the creators of the Raceceiver, called the Liteceiver, has returned to support the 2024 Structural Buildings WISSOTA Late Model Challenge Series powered by Momentum Truck Group, Freightliner, Western Star by putting a Liteceiver unit in each of the...more
MyRacePass Pole Award Set for 2024 Challenge Series

MyRacePass Pole Award Set for 2024 Challenge Series

4/8/2024
MyRacePass, located in Lincoln, Nebraska, has come on board as the Pole Award sponsor for the 2024 Structural Buildings WISSOTA Late Model Challenge Series powered by Momentum Truck Group, Freightliner, Western Star. The driver that earns the most passing points and earns...more

Quick Info

https://linktr.ee/wissotaautoracing All of WISSOTA Auto Racing in one place.

Structural Buildings Challenge Series
Click the logo for the Schedule

Rules/Forms

WISSOTA Rules and Procedures

The rules and/or regulations set forth herein are designed to provide for the orderly conduct of racing events and to establish minimum acceptable requirements for such events. These rules shall govern the condition of all events, and by participating in these events, all participants are deemed to have complied with these rules. NO EXPRESSED OR IMPLIED WARRANTY OF SAFETY SHALL RESULT FROM PUBLICATIONS OF OR COMPLIANCE WITH THESE RULES AND OR REGULATIONS. They are intended as a guide for the conduct of the sport and are in no way a guarantee against injury or death to a participant, spectator, or official. The race director shall be empowered to permit reasonable and appropriate deviation from any of the specifications herein or impose any further restrictions that in his/her opinion does not alter the minimum acceptable requirements. NO EXPRESSED OR IMPLIED WARRANTY OF SAFETY SHALL RESULT FROM SUCH ALTERATION OF SPECIFICATIONS. Any interpretation or deviation of these rules is left to the discretion of the officials. Their decision is final.

UPDATES:

Extra Halo Bar/Added Driver Protection

Extra Halo Bar/Added Driver Protection

Extra Halo Bar/Added Driver Protection

1 1/4" minimum material diameter with wall thickness of [13 Ga.] .095". It fastens to the halo @ or in front of seat headrest. Out and down to top door bar or angle back to the top door bar or B bar that goes up to the halo One horizontal bar from extra bar to B bar. Does not have to be 1 1/4". All cars need one in 2024.

2024 INFORMATION

Documents and information labeled 2023 have not yet been updated to 2024. Once that information is complete, it will be updated. The information on this page is as up to date as possible.

2025 Rule Changes

2024 Rule/Tech Clarifications:

The 2024 WISSOTA Rule Book will be available right here upon completion. Rules for all classes are in the rule book. Updates or clarifications needed during 2024 will be posted here and also published in All The Dirt! Racing News. If you have any questions pertaining to any car rules, contact: Bill Engelstad at (218) 208-7844 or bill@wissota.org.

2024 Required Patch Placement

Required Stickers 2024

All Class Clarifications

2024 if needed

Late Model Clarifications 2024

1/18/24
Wissota is aware of some new shock technology this is coming out. We at Wissota will not be allowing this technology in our Late Model Class. We will be releasing the rule wording soon.

Modified Clarifications

2024 if needed

Super Stock Clarifications

2024 if needed

Midwest Modified Clarifications

2024 if needed

Street Stock Clarifications

2/7/24
Front fender tops. Max. of 4" showing outside of hood on both sides.

Rear quarter panel tops. Max. of 4" showing outside of trunk on both sides.

All engine options must follow the exhaust / header rule on page 80 rule [H] of the 2024 Wissota rule book.

Mod Four Clarifications

1/31/24

No light weight rear end gears allowed. [polished gears allowed]
No light weight / gun drilled axles allowed.

Pure Stock Clarifications

2024 if needed

Hornet Clarifications

2024 if needed

Late Model GM CT525 Timing Curve

All Late Model drivers utilizing the GM CT525 Crate Engine must program the ignition to meet the following timing curve and RPM limits:

Max Timing: 26*
Rev Launch: 7,200
Rev Max: 7,200

Frame Measurements, Modifieds & Midwest Modifieds

ST. CLOUD, MN (December 18, 2014) – A diagram which outlines the specifications for frame measurements in the Modified and Midwest Modified divisions is available. Shown are the legal dimensions for the 1968 to 1972 Chevelle stub/frame. If your frame does not meet these measurements, please consult your chassis builder.

Officials of WISSOTA, USRA, and USMTS have produced a video tutorial which will help drivers, chassis builders and tech officials properly measure race car frames to ensure they meet 2015 rules and beyond. The following video helps to explain how Modified and Midwest Modified frames will be measured to ensure they comply with WISSOTA rules. If you have any questions, please contact Bill Engelstad at (218) 262-5823 or (218) 208-7844 or email him at bill@wissota.org.

The rules and/or regulations set forth herein are designed to provide for the orderly conduct of racing events and to establish minimum acceptable requirements for such events. These rules shall govern the condition of all events, and by participating in these events, all participants are deemed to have complied with these rules. NO EXPRESSED OR IMPLIED WARRANTY OF SAFETY SHALL RESULT FROM PUBLICATIONS OF OR COMPLIANCE WITH THESE RULES AND OR REGULATIONS. They are intended as a guide for the conduct of the sport and are in no way a guarantee against injury or death to a participant, spectator, or official.

The race director shall be empowered to permit reasonable and appropriate deviation from any of the specifications herein or impose any further restrictions that in his/her opinion does not alter the minimum acceptable requirements. NO EXPRESSED OR IMPLIED WARRANTY OF SAFETY SHALL RESULT FROM SUCH ALTERATION OF SPECIFICATIONS. Any interpretation or deviation of these rules is left to the discretion of the officials. Their decision is final.