What are the real hp and torque ratings of 455 motors?
#1
What are the real hp and torque ratings of 455 motors?
Are the horsepower ratings true or not? The older 455 ratings seem right but did they rate the newer ones(72-76) @3000 rpm? What were the actual ratings @ 5000 rpm?
#4
They differ from car to car but will be in the stated ratings. They truly mean nothing as the only measurement that counts is how many you are putting on the road and can only get rear wheel hp and torque from a dyno.
#5
http://www.442.com/oldsfaq/ofeng.htm#ENG 1964 - 1990 Engine Performance does not say when there system was changed.
#6
If you do the math. My 68 W30 was rated at 360 HP it ran a 13.9@97MPH on a perfect day, it's closer to 325 HP. If a 70 98 Olds had 365 HP it should run in the low 14's, they might run a mid 15 sec 1/4 mile at best.
Some motors were closer than others.
Some motors were closer than others.
#9
According to the article in the link below the early "gross" ratings were taken with a basically bare engine with open headers and optimized timing. The later "net" ratings were acquired with all the accessories and exhaust in place, stock ignition timing. Both were taken at the flywheel with the engine on a test stand.
The HP numbers weren't written in stone, that's for sure. Just about whatever they needed them to do they did.
http://ateupwithmotor.com/terms-and-...orsepower.html
The HP numbers weren't written in stone, that's for sure. Just about whatever they needed them to do they did.
http://ateupwithmotor.com/terms-and-...orsepower.html
#15
#17
Much Apologies......Was just browsing.....No intended offense...But it looks like a big mouth Bass! I'm sure He knew that! What a great car! Why kill an old thread? I'm trying to turn on as many young folk as possible to the olden days, olden cars, and those pictures are classic! You should be happy.....cause I am...for the pictures and the thread!
#18
Sorry ....but you know what......The old threads are good!.....I love reading them! I am not so good as to navigate thru the new ones.....I love reading the old threads.... I have learned so much........
#20
Reviving old threads isn't a bad thing. It gives one a chance to reflect on former members. In some cases you never know if they passed away or just moved on from Oldsmobiles. The threads topic still sparks interest today after all these years. Let's hope the next time this thread gets renewed someone's not asking what happened to one of us.
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October 22nd, 2011 05:57 AM