Horsepower of original 427

[kanuck]

I posted this in another thread.

Way back 20 plus years ago I witnessed a dyno run of a NOS 427 that came out of a crate,
it was suppose to be a 425HP version that was "under rated" no matter what carb or how much timing they put into it, the best they saw was 410 HP, so I really don't believe cobras had as much HP as we would like to believe they had, I figure it is just like anything else over the years the numbers just get bigger and bigger, every time the story is told.

Dean

[olddog]

Originally Posted by kanuck

I posted this in another thread.

Way back 20 plus years ago I witnessed a dyno run of a NOS 427 that came out of a crate,
it was suppose to be a 425HP version that was "under rated" no matter what carb or how much timing they put into it, the best they saw was 410 HP, so I really don't believe cobras had as much HP as we would like to believe they had, I figure it is just like anything else over the years the numbers just get bigger and bigger, every time the story is told.

Dean

In the mid 1990's the formulas for correcting the Hp for standard sea level atmospheric conditions had likely be revised several times since the 1960's. Remember in the 1960's engineers were still using slide rules and computers were more of a pipe dream. It took a long time to get it right, and some will tell you it still isn't exact.

[slider701]

Originally Posted by olddog

Remember in the 1960's engineers were still using slide rules and computers were more of a pipe dream. It took a long time to get it right, and some will tell you it still isn't exact.

Same engineers who used slide rules put a man on the moon and develop the SR71 which still hold most records for fastest airplane. Fast forward 50 years and they can't use all of todays computers to work out the bugs on the F35 to save their lives.

If the muscle cars of the 60's & 70's had the tire technology we have today there would be much much lower #'s for 0-60 and 1/4 mile times in the record books

[Dominik]

Originally Posted by slider701

Same engineers who used slide rules put a man on the moon and develop the SR71 which still hold most records for fastest airplane. Fast forward 50 years and they can't use all of todays computers to work out the bugs on the F35 to save their lives.

If the muscle cars of the 60's & 70's had the tire technology we have today there would be much much lower #'s for 0-60 and 1/4 mile times in the record books

Nice teaser, and without aksing for trouble: I would not compare the SR-71 Skunk Works engineers to automotove engineers.. ;-)

It's torque that accelerates a car, which makes a 427 very quick!