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Speedwerx Renews Support of Challenge Series; Head...
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Speedwerx Renews Support of Challenge Series; Head...

Speedwerx Renews Support of Challenge Series; Head...

4/26/2024 -
Speedwerx has been involved with the Structural Buildings WISSOTA Late Model Challenge Series powered by Momentum Truck Group, Freightliner, Western S
BuyRaceShirts.com to Host Challenge Series Pre-Rac...

BuyRaceShirts.com to Host Challenge Series Pre-Rac...

4/24/2024 -
As things continue to grow, the 2024 Structural Buildings WISSOTA Late Model Challenge Series powered by Momentum Truck Group, Freightliner, Western S
Free Gloves or Shoes to SERVPro Stars of the Serie...

Free Gloves or Shoes to SERVPro Stars of the Serie...

4/19/2024 -
Leaders with the Structural Buildings WISSOTA Late Model Challenge Series powered by Momentum Truck Group, Freightliner, Western Star are excited to w

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Speedwerx Renews Support of Challenge Series; Headlines 2024 Fant

Speedwerx Renews Support of Challenge Series; Headlines 2024 Fant...

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Speedwerx has been involved with the Structural Buildings WISSOTA Late Model Challenge Series powered by Momentum Truck Group, Freightliner, Western Star for a few years as the Hard Charger Sponsor, and this year will transition to the sponsor of MRP’s Speedwerx Fantasy...more
BuyRaceShirts.com to Host Challenge Series Pre-Race Show in 2024

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WISSOTA 2017 rule updates announced
587
11/20/2016

11/20/2016

WISSOTA


WISSOTA 2017 rule updates announced

WISSOTA technical director Bill Engelstad has announced the following rule clarifications pertaining to the 2017 season. The updates for the 2017 rule book are being made at this time and it will be available online for WISSOTA’s racers during the month of December; each driver licensed in 2016 will also be mailed a copy of the 2017 rule book as soon as printing is complete.

If you have questions of any kind pertaining to your race car or your class, please contact Engelstad for additional information. He can be reached by phone at (218) 262-5823 (home) or (218) 208-7844 (cell), or by email at billengelstad@yahoo.com or bill@wissota.org.

All Classes:

• Mandatory to wear fire retardant gloves.

• Weight(s) must be mounted to frame or cage only. Weight cannot move while race car is moving.

• No computerized dashes/instrumentation allowed.

• No exotic materials, including tungsten, allowed on any race cars except where specific rules allow said material.

Hornets:

• No progressive, stacked or welded springs are allowed. No spring rubbers are allowed.

• Spring wire diameter and coil spread must remain consistent from one end to the other; last coil on each end may be closed and shaved off to create flat surfaces for mounting.

• Conventional spring mounting devices only; no widgets, trick or spring-altering mounting devices will be allowed.

• No internal or external bump stops allowed.

• No limiting devices are allowed on front suspension components, including but not limited in relation to: shocks, springs, upper or lower A-frames (except where specific class rules allow specific alterations).

Pure Stocks:

• A bead lock wheel is allowed on the right rear.

• Aluminum pulleys allowed on the engine.

• Cylinders may be bored .040 over.

• No progressive, stacked or welded springs are allowed. No spring rubbers are allowed.

• Spring wire diameter and coil spread must remain consistent from one end to the other; last coil on each end may be closed and shaved off to create flat surfaces for mounting.

• Conventional spring mounting devices only; no widgets, trick or spring-altering mounting devices will be allowed.

• No internal or external bump stops allowed.

• No limiting devices are allowed on front suspension components, including but not limited in relation to: shocks, springs, upper or lower A-frames (except where specific class rules allow specific alterations).

Mod Fours:

• No progressive, stacked or welded springs are allowed. No spring rubbers are allowed.

• Spring wire diameter and coil spread must remain consistent from one end to the other; last coil on each end may be closed and shaved off to create flat surfaces for mounting.

• Conventional spring mounting devices only; no widgets, trick or spring-altering mounting devices will be allowed.

• No internal or external bump stops allowed.

• No limiting devices are allowed on front suspension components, including but not limited in relation to: shocks, springs, upper or lower A-frames (except where specific class rules allow specific alterations).

Street Stocks:

• Speedway Motors 3-piece spindles allowed (91034501)

• The following aftermarket stock replacement steel crankshafts are allowed:

Chevrolet: Eagle 435034805700, Scat 4-350-3480-5700, Manley 190310, Performance Engine Products (PEP) DG382D. Ford 302: Eagle 430230015090. Chrysler: Eagle 43403106123.

• No progressive, stacked or welded springs are allowed. No spring rubbers are allowed.

• Spring wire diameter and coil spread must remain consistent from one end to the other; last coil on each end may be closed and shaved off to create flat surfaces for mounting.

• Conventional spring mounting devices only; no widgets, trick or spring-altering mounting devices will be allowed.

• No internal or external bump stops allowed.

• No limiting devices are allowed on front suspension components, including but not limited in relation to: shocks, springs, upper or lower A-frames (except where specific class rules allow specific alterations).

Midwest Modifieds:

• Speedway Motors 3-piece spindles allowed (91034511 or 91034501); in addition, the Argo 3-piece AMC Pacer spindle RP929 is allowed.

• The following aftermarket stock replacement steel crankshafts are allowed:

Chevrolet: Eagle 435034805700, Scat 4-350-3480-5700, Manley 190310, Performance Engine Products (PEP) DG382D. Ford 302: Eagle 430230015090. Chrysler: Eagle 43403106123.

• No progressive, stacked or welded springs are allowed. No spring rubbers are allowed.

• Spring wire diameter and coil spread must remain consistent from one end to the other; last coil on each end may be closed and shaved off to create flat surfaces for mounting.

• Conventional spring mounting devices only; no widgets, trick or spring-altering mounting devices will be allowed.

• No internal or external bump stops allowed.

• No limiting devices are allowed on front suspension components, including but not limited in relation to: shocks, springs, upper or lower A-frames (except where specific class rules allow specific alterations).

Super Stocks:

• Speedway Motors 3-piece spindles allowed (91034501)

• The following aftermarket stock replacement steel crankshafts are allowed:

Chevrolet: Eagle 435034805700, Scat 4-350-3480-5700, Manley 190310, Performance Engine Products (PEP) DG382D. Ford 302: Eagle 430230015090. Chrysler: Eagle 43403106123.

• No progressive, stacked or welded springs are allowed. No spring rubbers are allowed.

• Spring wire diameter and coil spread must remain consistent from one end to the other; last coil on each end may be closed and shaved off to create flat surfaces for mounting.

• Conventional spring mounting devices only; no widgets, trick or spring-altering mounting devices will be allowed.

• No internal or external bump stops allowed.

• No limiting devices are allowed on front suspension components, including but not limited in relation to: shocks, springs, upper or lower A-frames (except where specific class rules allow specific alterations).

Modifieds:

• A bead lock wheel is allowed on the right front.

• Argo 3-piece AMC Pacer spindle RP929 is allowed.

• No progressive, stacked or welded springs are allowed, other than progressive springs on pull bars. No spring rubbers are allowed.

• Spring wire diameter and coil spread must remain consistent from one end to the other; last coil on each end may be closed and shaved off to create flat surfaces for mounting.

• Conventional spring mounting devices only; no widgets, trick or spring-altering mounting devices will be allowed.

• No internal bump stops allowed.

• One external rubber or plastic bump stop is allowed on shocks. Bump stop cannot be more than 1/2? high.

• No limiting devices are allowed on front suspension components, including but not limited in relation to: shocks, springs, upper or lower A-frames (except where specific class rules allow specific alterations).

Late Models:

• No updates.

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