A box compression tester is a machine that measures the size and quality of boxes. It uses a variety of techniques to test the strength, durability, and compression of boxes. The box compression tester can also be used to test the strength and compression of packaging materials. Most manufacturers use this type of machine to test the quality of the boxes they use to ship their products.
150-160 PSI
My truck runs about 140 psi, but was rebilt recently. 120psi is normal for a truck with normal wear.
When it was new it had 150 PSI. per cylinder
then youre running about 8.5:1 compression
Normal compression for a 350 Chevy engine typically ranges from 160 to 180 psi per cylinder, depending on factors such as the specific engine model, its condition, and the type of cylinder heads used. Variations can occur based on the engine's age, wear, and modifications. Consistent readings across all cylinders are crucial for optimal performance. If readings are significantly lower than this range, it may indicate issues such as worn piston rings or valve problems.
Anywhere from 80, up to 180, depending on ther compression ration, effective compression ratio, and how many miles on the motor. Lower than about 80, is getting low. Also, you are looking for a cylinder that is really low, compared to the rest. 30 lbs., or more, lower. This would indicate a dead cylinder.
when my 305 is running it has about 60 psi in all the cyliner
around 80 ft.llbs. or higher is usually good.
4cylinder, if u want a new v6 engine theres the eclipse, best four cylinder is an evo or SRT-4 btw WRX STi's are insane
The lack of compression in one cylinder of a Chevy 355 engine could be caused by a number of issues such as a leaking valve, a blown head gasket, a cracked piston, or improper sealing of the piston rings. It is recommended to perform a compression test and further diagnostic tests to identify the exact cause of the low compression in that cylinder.
150 LBS. per cylinder. If you hace more then 15 LBS. difference between any cylinders the engine will idle rough and not run good.
A good 454 will have at least 150 PSI per cylinder.