TommyVercetti
New member
- Jul 11, 2008
- 16
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I was looking at the Vortech supercharger website and they list the power ratings of stock cars/trucks, and then the power they make with a Vortech supercharger. Anyways, I noticed the ratings on some of the 1987 - 1997 Ford trucks are pathetically low. For instance, the stock 7.5 liter big block V8s were rated at 230hp and 385 torque in that period. That doesn't even make sense! How could a 460ci engine make significantly less torque then displacement? Even a mild 8.5-1 compression 460 should make 440-450tq at least. Vortech claims that they make 450tq with a 6psi supercharger. Even a mild 460 with a 6psi supercharger should make about 550tq+! I know those motors had a low compression ratio, but that doesn't have a big effect on torque, it mainly effects horsepower. A healthy 351 small block is easily capable of making 385 torque, much less a 460!
And the 351's were rated a 300tq in that period! Was Ford just extremely underrating their truck engines for whatever reason? Those numbers just can't be correct.
And the 351's were rated a 300tq in that period! Was Ford just extremely underrating their truck engines for whatever reason? Those numbers just can't be correct.