We did this with our K touring a few years ago. I believe we topped out at 48 hp.
This K has a fresh engine, all stock except aluminum pistons. Original Buffalo carb.
We tested with, then without the hot air pipe. The first test had a max hp of 50, and the one without hot air pipe went to 54.1 hp. I did lean the fuel out on the second run a little too. This is hp at the wheels:
Video of shop owner explaining the tests:
We took the car up to 64 mph on the dyno as we were setting up.
Henry would be proud.
Funny, but my 1966 Coronet with 440 Magnum is rated at 475 as built. It is a beast, but I question the
power curve as rated by horsepower. With 405 more "horses", you'd think it would be 800% faster.
It just ain't so.
Did you ask the shop owner when the last time was he tested an '07 Ford ???
Years ago we had a shop in town that did all sorts of brake and clutch work. REAL oldtimers in there.
Took a 35 Packard Super 8 limo in for them to work their voodoo on and the only response when asked
"What kind of car ?" was "Been a while since we had one of those in" (!) He didn't even look up from his
Very nice Rob!
Chad, the shop owner, said the torque was very good. Unfortunately, I wouldn't know a good torque reading of I saw it.
At 2400 lbs., this gives us about a 44 lbs. per hp ratio.
Strapped down, ready to go:
Great, considering losses in the drivetrain that would be 65-68 hp in the engine without the hot air pipe, much more than Ford claimed
(but the low rpm torque is the most important - and the most impressive with the car)
Thanks Roger. This may be comparing apples to oranges (well, T's to K's), but a study of Model T ignition systems in 2011 gives hp and torque comparisons. I don't know if there is any correlation between those tests and the K dyno? The two tests have a similar rpm range.
T dyno. Horsepower chart (24 hp max) followed by torque (max 100):
K dyno, torque in blue (max 233), hp in red (max 53):
Looks like the reading from your K jumps up and down a bit, did the tires have a hard time getting a grip on the rolls?
If you compare the size of the engines, 405 cu in to 176, the K is 2.3 times larger then the T.
So dividing your max result 54.1 with 2.3 gives 23.5 hp, and that would be a great value on the rear wheels of a standard T - see some different T:s tested in this link:
We tested our #22 Speedster on a dyno that started reading at 1850 r.p.m. because they had set it up for Panteras. We came in at the start with 35 horsepower and 100 foot pounds of torque at 1800 revs. It was dropping rapidly so most likely had 200 pounds at 900 revs. We made47.6 horsepower at 2800 revs with 70 foot pounds of torque. Son Bill shut it off at 2800 revs. We later dismantled the engine when the triple gear bushings got noisy and found that the crank was cracked and all of the valve seats were cracked into the cylinder walls what it ran on the dyno.
233ft/lbs is impressive, most modern cars don't make that much torque.
I'm not sure the rollers are set up for 36 x 4 inch tires.
The high torque must be the reason one may start in high gear on the level: