How much horsepower does a straight 8 have?
How much horsepower does a straight 8 have?
The new eight featured low-compression (usually between 7.00:1 and 8.00:1 ratios), long-stroke (usually between 4 1/4-inches and 4 5/8-inches), and 125–160 hp. These were silky smooth and easily propelled the mammoth 5000-pound cars from a dead stop in high gear—which was rumored to have been advised by dealers.
Is V8 better than straight-8?
Inline-eight engines are much longer than V8 engines of comparable displacement, and therefore use the available size much less efficiently. Inline-eight engines also aren’t possible to build in a perfectly harmonically balanced configuration, as is possible with a cross-plane V8. The engine might vibrate unpleasantly.
When did the Pontiac straight 8 engine come out?
The Pontiac straight-8 engine is an inline eight-cylinder automobile engine produced by Pontiac from 1933 to 1954. Introduced in the fall of 1932 for the 1933 models, it was Pontiac’s most powerful engine at the time and the least expensive eight-cylinder engine built by an American automotive manufacturer.
How much torque does a 1932 flathead V8 have?
Engine & Transmission Related Torque Settings 1932 to 48 V8 Bolt Location Torque Setting Ft. Lbs. 85-100 HP 60 HP Main Bearing Bolts or Nuts 80-90 65 Cylinder Head Nuts (cast iron heads) 50-60 Cylinder Head Nuts (aluminum heads) 35-40 40-45
What was the firing order of a Pontiac straight 8 engine?
The electrical system was a 6-volt primary with a negative ground, and a conventional mechanical ignition, with the firing order 1-6-2-5-8-3-7-4. The Pontiac engines employed a full pressure oiling system and full bearing inserts, unlike its Chevrolet cousin.
What was the compression ratio on the Pontiac straight 8?
Compression on the “eight” started at 5.7:1 initially, and was increased to 6.2:1 ratio in 1934. In 1940 it was increased again to 6.5:1. From 1952 to 1954 two compression ratios were specified, 6.8:1 with syncromesh (manual) transmission, and 7.7:1 ratio with Hydramatic automatic transmission.
The Pontiac straight-8 engine is an inline eight-cylinder automobile engine produced by Pontiac from 1933 to 1954. Introduced in the fall of 1932 for the 1933 models, it was Pontiac’s most powerful engine at the time and the least expensive eight-cylinder engine built by an American automotive manufacturer.
Engine & Transmission Related Torque Settings 1932 to 48 V8 Bolt Location Torque Setting Ft. Lbs. 85-100 HP 60 HP Main Bearing Bolts or Nuts 80-90 65 Cylinder Head Nuts (cast iron heads) 50-60 Cylinder Head Nuts (aluminum heads) 35-40 40-45
What are the torque specs on a Pontiac?
Pontiac Engine Torque Specs Bolts or Parts Lube or Sealer Torque to: Rocker Studs (screw-in) Engine Oil 55 ft-lbs. Rocker Arm Nuts (Non-Adjustable Rockers) Assembly Lube 20 ft-lbs. Oil Pump Bolts Engine Oil 30 ft-lbs. Oil Pump Cover Bolts Engine Oil 15 ft-lbs.
Compression on the “eight” started at 5.7:1 initially, and was increased to 6.2:1 ratio in 1934. In 1940 it was increased again to 6.5:1. From 1952 to 1954 two compression ratios were specified, 6.8:1 with syncromesh (manual) transmission, and 7.7:1 ratio with Hydramatic automatic transmission.
