Please email any and all technical and rule questions regarding any of the SWMMRA rules to tech@swmmra.org.
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| TIRES |
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45” maximum DOT tires, cutting & grooving allowed. |
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No paddle tires. |
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| ENGINE |
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Gasoline only. No nitrous or alcohol allowed. |
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Engine swaps allowed- corporate matching. |
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Cast iron blocks only ~ No blowers. |
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Open headers allowed exiting up or down, not out the side. |
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Aftermarket fuel injection & Port fuel injection allowed. |
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Multiple carbs allowed. |
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| BODY |
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Body swaps allowed ~ No fiberglass bodies. |
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Wheel wells must match factory frame +/- 2 inches. |
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Body must be completely intact. |
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Fender well trimming to accommodate larger tires. |
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Inner fender not required. |
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Windshields required. |
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Bedside skins only are allowed. |
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Must have 2 operable doors unless opened bodied. |
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Cab interior ~ anything that can be unbolted or unscrewed maybe removed (no cutting). |
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| FRAME AND SUSPENSION |
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Factory frames only, must maintain at least 2 original cross members and be factory width. |
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Engine must be set in stock factory frame location. |
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Factory OEM suspension- three leaf (rear suspension). |
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2 drive shaft loops mandatory, front & rear. Loops must be made of substantial rigid construction, no chains, cables, etc. |
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Engine and chassis must be corporate matching. |
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May use aftermarket transmission. |
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Tow hooks required, front and rear. |
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Aftermarket suspension allowed. |
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| SAFETY |
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4 point harness ~ 4 point halo cage in cab ~ Fire extinguisher. |
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Must have U- joint guards and tranny blanket. |
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A kill switch is mandatory and must be connected to electric fuel pump ~ A tether switch is mandatory. |
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SFI harmonic balancer or shield required. |
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Must have firesuit, pants and shirt required. |
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Window nets on driver side or wrist restraint. |