tmeranda, if you know the hp @ a certain rpm, then you can calculate the torque directly, as power is just the "rate of doing work (or torque)". This could make it easier if you are plotting gear-change points, etc.
I'll see if I can post the imperial & metric relationships today sometime (I've got to figure them out! :nuts: )
OK, the boffins have been hard at work. The relationships between metric and imperial power and torque are as follows ...
Horsepower (hp) = Torque (lbf-ft or "foot-lbs") x RPM / 5252
Horsepower (kW) = Torque (Nm) x RPM / 9549
Because of these direct relationships, you will find that irrespective of what an engine's torque or power curves look like, an "imperial" set of curves will always cross at 5252 rpm (and metric at 9549 rpm!!). It's just a function of the maths. 8)
hey 4i2fly do you have a graph of a modena on a dynojet instead of the dynapack. i like dynojet power better hahaha. its just what i'm use too. with those dyna packs the operator of the machine can manipulate the numbers and make the car seem like it has more power.
yo man can you please make sure that it is a dynojet please. i am really interested in seeing what kind of graph that motor can draw. make sure you ask the guys to give you the graphs in bitmap format so you can post them up here. also let me know where you are. and what modifications do you have if any. i know a few people all over the us that are shop owners with dynojet's.
Here's the graphs for the HP and Torque. At the bottom the air fuel mixture shown and according to these guys who are software experts the car is at optimum with the current set up producing the HP. They had a baseline from a F355. The HP difference at the wheel is about 40 HP and I guess at the crank only 20 HP based on some os the articles I have read. I have taken a picture, he would not share the file! Here they are: the pdf is mine and the jpg is the comparason.
There is never a dull moment in a 360Modena, even on the dyno stand. There was a CL55 on the stand right before mine. The sound out of that super charged V8 was nothing compared to the scream the 360Modena was about to put out.
About the numbers, I guess the F355 power loss through the drive train vs. the 360Modena is quite surprising. F355 is rated at 375 HP vs. 298.5 HP on the dyno and the 360 rated at 395HP vs. 339.8HP on the dyno (that’s like 50% more loss than the 360). I was also surprised that mine showed about 29 more HP than the earlier 360Modena dyno graph??? But I tell you the difference in HP/weight ratio in the Modena vs. F355 is very obvious when you drive one. And, the numbers back them up. What a leap in performance.
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