Rule Changes for Formula FST
#25624 from Robert Guhde · Recommended to the Board · Minutes (2019-01 Fastrack)
Effective 1/1/19:
In GCR section 9.1.1.H.4.2, make changes as follows:
“Regional, Divisional and/or Race Series Tire Options:
1. Option 1. The spec tire manufacturer for Formula First shall be the FF Hoosier Tire.
Front tires shall be #43130 20.0” x 6.0” – 13” R60 or R60A compound 13 inch. Rear tires
shall also be #43302 22.5” x 7.5” – 13” R60 compound or #43307 22.5” x 7.2” x 13” R60A
compound 13 inch.2. Option 2. The spec tire manufacture for Formula First shall be Goodyear Tire. Front tires
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shall be #807-366-068 3321 20.0” x 6.0” – 13” R600 compound. Rear tires shall be #870-274-068 2015 22.5” x 7.5”– 13” R600 compound.3 2. Option 3 2. If a division chooses an alternate spec tire manufacturer for Formula First it Thespec tire manufacture for Formula First shall be the American Racer Tire. Front tires shall be
20.0” x 6.0” – 13” 133 compound. Rear tires shall be # 22.5” x 7.5” – 13” 133 compound.4 3. Inter divisional races or special events may choose to allow more than one tire option by
listing the options allowed for said event in the event supplemental regulations. Intermediate
tires are not allowed.3 4. Any tires (brand, size, tread or construction) fitting the 13 x 6 rims may be used when the
Chief Steward declares a rain race. This includes the radial Formula Ford rain tire.”
In GCR section 9.1.1.H.5.2, make changes as follows:
“Rod weight with bolt and small end bushing: Minimum 560 grams. Rod length, center
to center: 5.35” to 5.45”. Any manufacturer’s piston rod may be used that meets the VW
dimensional and weight specifications listed herein. Competitors may use VW or Chevy
bearings for rod big end and may modify rods accordingly as long as weight of 560 grams is
maintained.
Piston weight with pin, clips, and rings: Minimum 515 grams.”
In GCR section 9.1.1.H.5.3.1, make changes as follows:
“Any 1200 or 1600 VW case or exact replica may be used. ( Aftermarket competition cases that
vary in design from the original VW case are not permitted except for the Auto Linea aluminum
VW case, which must meet all other GCR/FST requirements.) The engine case may be
painted as long as casting stampings are visible.”