Wonder how long the sweeps were on that 428 dyno? I've never seen an engine pickup 20 degrees of oil temp unless it was hurt....
I'll bet they were static pulls, Brent. Remember, this was 1969, and most dynos were not computer controlled, and the data was not collected in an automated fashion. This was explained to me once by somebody, can't remember who, but they would run the engine up to the RPM of interest, get the brake set, read the scale (!), hand record the other data they were interested in, and then move the engine to the next RPM point. Or, maybe shut off, look at the data, and then start again and go to the next RPM point. If they were operating like that, it is entirely possible that the oil temperature would go up significantly as they gathered the data.
Hello Mr Jay
Thanks again for all that you do. You have a nice team here.
OK, you are correct as usual and here are some facts.
FORD had the best DYNO money could buy then and we had 2 cells. These legends would come test for a fee at Ford racing for example.
It was really something else, to have the older guys say, FORD funded the 3 most precise dyno cells this side of the Mississippi. This was told to us because we had side by side Heinan Freund dynos on the East end of this mammoth engine room
Bruce CROWER obtained one of them for his private skunk works after we moved because they were very special
The key is, a huge water brake. and a very precise way to load it up and down
The control panel had the highest quality instruments, and part of this was so that our tests, could go back to Detroit in some cases, or down to HM South, and be calibrated for comparison
And yes, running the pulls required 2 men, and a skilled operator with these tasks
You have a level on the console, right hand controls the throttle, like today
Left hand stays on the rotary switch that loads or unloads the torque brake.
In front,, a window to the test cell, and two large calibrated gauges, a big tach, and a big pound scale to measure torque to the tenth of a pound.
So this requires skill because a very good dyno guy, if having a bad day, or distracted, could let the engine 'get away' from him, wing it and bang it.
A legendary FORD engine man had a crowd watching, and was kind of showing off or talking too much, they distracted him in his defense, and the tricky paart is manually mashing the gas, or WOT,,wide open throttle, then clicking in the load, loading the engine, and if it has a lot of juice, it may over come the torque brake and get away from ya, and if you reacted just a bit slow, failed to lift, or close the throttle fast, it might over rev and BOOM !!
He is the only guys we recall who boomed one
427 tunnel port, 14/5 to one,and and
The Foreman usually did the data gathering, Somehow I ended up or was so so soooo lucky to do some of that later, usually 2nd shift and on the weekends or during a thrash to get many cars to the races.
So you read gages, filled in the boxes, and went in and out of the Dyno cells
What was cool was who came up to Dyno too. The first Total Seal rings, Kendig Carbs, the original NOS systems from NOS down the street, the legendary, man we have stories here, Gale Bank did his twin blown Rats there, he has an entire wing of awesome accomplishments in his own wing at the NHRA Hot Rod museum. W would do cam changes, durabilty, max boost tests.
and he an I smelled so much Av Gas on weekend, we were fainting,,,,LOL And he taught me and a few guys helping, to go into a separate room, grab an oxy acetylene torch, open the O2 side, set the tip in your mouth like a cig, then breath in oxygen to clear your head.
He could pull well over 1,100 ft pounds ina super durable build, with ease.
Ak Miller tested there, huge legend and we loved him, Gus Davis, Unser, Gurney over on the Autolite side, he banged a few Offys and just did 2 more to win
OK war stories, gotta work
Static yes, trick, yes, next deal was, how weel she ran on a track. The Dyno was a basis, to them get the real data, a time slip or lap time
Thanks
AUTOLITE DYNO......top secret,,,,,and had IBM stuff, to simulate laps at INDY for example.
Thanks men