1970 Oldsmobile F85 W31 drag racing 1968 Pontiac GTO Ram Air II. Pure Stock Muscle Car Drag Race. Factory Stock Drag Race.
First car is a 1968 Pontiac GTO. The other a 1970 Oldsmobile F-85. The GTO has a 400 Ram Air II V8, while the Olds has a W-31 350 V8. The GTO Ram Air 2 was rated 366 horsepower, and the 350 in the W-31 was rated 325 horsepower. The W31 came with a specially built TH350 3-speed automatic transmission. The GTO also has a 3-speed automatic transmission, specifically, a TH400. Rear gearing in the W-31 is 3.91, and the GTO has a set of 4.33 rear gears. Weight of the GTO with driver is 3690 pounds, while the Olds is weighing-in at a slightly heavier 3718 pounds. There were only 116 W-31 cars produced in 1970 with the sport coupe body. On the other hand, there were 246 total Ram Air II GTOs produced in 1968. Hi Performance Magazine tested a prototype Ram Air II GTO in July of 1968 and it ran the quarter mile in 12.77 seconds @ 111.23 mph. Hot Rod tested a 1970 W31 in April of 1970 and it ran 14.62 seconds @ 96.05 mph.
Pure Stock Muscle Car Drag Race (PSMCDR). FAST Factory Appearing Stock Tire factory stock. Super Car Drag Race.
Remember, both cars participate in the Pure Stock Muscle Car Drag Race series, so please check out their website: [ Ссылка ]
Also make sure you find them out on Facebook.
The rules for PSMCDR are listed below:
For 1955 to 1979 musclecars built in United States and Canadian assembly plants with a minimum warranty of 12 months and 12,000 miles.
Any car running faster than 11.50 will be disqualified and will not have a qualifying time recorded.
Any convertible running faster than 13.50 will be disqualified and will not have a qualifying time recorded.
Casting numbers must be correct for the year and horsepower claimed including intake manifold, heads, and exhaust manifolds. Blocks do not have to be "numbers matching," but they must be the correct displacement. Overbores up to .070" are allowed. Stock cranks only.
All Engines – CR 1.5 extra points allowed over advertised.
The camshaft must be correct for the year, model, and horsepower claimed for the type of lifter (hydraulic or solid). Roller cams NOT allowed.
The valve train must be factory stock for the year, make, and horsepower claimed.
The ignition system must be stock, including the distributor, cap, coil, and wires. Points may be replaced with any electronic conversion that fits under the stock distributor cap.
The carburetor must be correct for the year, make, and horsepower claimed. Jetting and metering changes are permitted. THE CHOKE ASSEMBLY MUST BE IN PLACE AND FUNCTIONAL!
Cast-iron exhaust manifolds are mandatory and must be correct for the year, model, and horsepower claimed. Internal modifications to the exhaust manifolds are NOT allowed. Under no circumstances will headers be allowed, including those cars that came with headers delivered in the trunk. Pipes must be routed as they were originally for the year, make, model, and engine combination. Mufflers must be stock looking in design, that is, oval in shape. No glasspacks or straight pipes allowed unless installed as original equipment. Maximum muffler inlet and outlet size is 2.5 inches. X & H pipes allowed.
The radiator must be correct for the year, make, model, and horsepower claimed. No lightweight, aluminum radiators allowed.
The camshaft must be correct for the year, model, and horsepower claimed for the type of lifter (hydraulic or solid). Roller cams NOT allowed. Duration at .050" lobe lift must be within 1% of factory specs. Lift at the valve must be within 2% of factory specs. Maximum stall limited to 2200 rpm.
The transmission must be correct for year, make, model and engine of the car. 3-speed manuals may be upgraded to the correct 4-speed if originally available.
The rear axle must be of the same manufacturer as the car. Any gear ratio is allowed.
Reproduction tires or radial tires only.You are allowed to run tires one size over stock.
Factory wheels only.
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