WHO WINS ?? 455 HO GTO or RAM AIR II 400 FIREBIRD - Old School 1/4 mile Drag Race - RoadTestTV®
Автор: Road Test TV
Загружено: 2020-06-29
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WHO WINS? - 455 HO GTO vs RAM AIR Firebird 400 ??
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Two Old school Pontiac muscle cars go head to head in a quarter mile drag race. Both cars are competing in the Pure Stock Drags, so modifications are limited to porting, blue printing and minor weight reduction without altering the stock appearance. That means stock intake manifold, stock exhaust manifolds and street tires (see below for more information about rules).
The 1972 455 HO GTO is very rare as only 310 were built. The GTO is powered by Pontiac's 455 Cubic Inch (7.5 Liter) High Output V8 which was rated at 300 Net horsepower and 415 lb-ft of torque due to a drop in compression ration which occurred in 1971.
The 1968 Firebird 400 racing the 455 HO GTO is also is very rare (only 110 built) since it's optioned with Pontiac's potent Ram Air II 400 cubic inch (6.6 L) which was rated at 340 horsepower and 430 lb-ft of torque. The Ram Air II 400 was the predecessor to the Ram Air IV and had round port heads. The Ram Air II 400 was no joke. This particular Ram Air Firebird is from high performance dealership, Royal Pontiac.
The 455 HO GTO is a 4 Speed manual and the Firebird 400 is equipped with GM's Turbo 400 automatic transmission. So WHO WINs? Watch the video and see what happens.
Comment below - Tell us what you think and which car you'd rather own after watching the video...
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According to their Facebook Page, the Rules for the Pure Stock Drags are:
The class is limited to cars produced between 1955 to 1979 built in both United States and Canadian assembly plants The cars had to come with a minimum of 12 months and 12,000 mile warranty from the manufacturer.
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.
All 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 – 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 came with the car. Any gear ratio is allowed.
Reproduction tires or radial tires only, and you are allowed to run tires one size over stock.
Factory wheels only.
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