Prepped Grudge Race w/ One Guy’s Garage Street Car Series


From 8 a.m. until 4 p.m. approx.

At Rock Falls Raceway

N1790 1000th Street, Eau Claire, WI 54701

$40 to Race or $10 to Watch

Gates Open @ 8 a.m.

Time Trials @ 9 a.m.

Eliminations around 1 p.m.

$40 to Race or $10 to Watch

In conjunction with One Guy's Garage Street Car Series, we present the following Prepped Grudge Race Event!!

Grudge racing all day as well as three heads up, clocks on, 1/4 mile classes that require a 20-mile street cruise along with two heads up, 1/8 mile, no time unlimited classes (small/big tire) for non-street friendly race cars. $50 Buy-In w/ 100% payback plus prizes for each class for those who want to participate.  Rock Falls will be prepping the track well so be prepared to lay down the power!!  Manual transmission class and bikes as well if there is enough interest.

Rules are as follows:

Factory Street
-Current plates and insurance
-Factory wheelwells
-Bolt on suspension components only
-Absolute full interior using stock style components
-Stock body panels and glass, aftermarket hood ok
-Full exhaust with mufflers exiting behind the rear axle
-Exception: Shorter exhaust ok with mufflers on N/A application
-Front and rear DOT tires
-Max 275/15, 28x11.5 Bias ok, 17" or larger wheel any DOT tire.
-Twin turbo max compressor inducer diameter 58mm
-Single turbo max compressor inducer diameter 76mm, S400 or larger not allowed. Small frame T4 flange or smaller only.
-Bolt on style superchargers, Procharger D1 or smaller
-Single stage nitrous plate or nozzle system.
-No nitrous big block

True Street
-Current plates and insurance
-Any rear suspension
-Stock style front suspension.
-Exception: Double a-arm aftermarket weld or bolt on kit ok
-Full interior, rear seat delete ok but must be finished appearance
-Two seats, headliner, door panels required
-Fiberglass bumpers and hood only
-Max amount of two lexan windows
-Mufflers required on all combos
-Max 325/15 or 30x13.5, 17" and larger wheel any tire ok
-Twin turbo max compressor inducer diameter 66mm
-Single turbo max compressor inducer diameter 91mm
-Procharger F2 or smaller models
-Max single nitrous system on big block, two systems on small block

Outlaw Street
-Current plates and insurance
-Door car

Rules will be enforced and subject to change.


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