maybe i’m thinking of the wrong type of dyno, but isn’t a dynopak on that bolts up to the wheel lugs?
It does, and those bolt on parts are calibrated in the dyno just like a roller. So you are still missing wheels and tires.
-Em
then i was wrong. either way, i’m not real picky on dynos
yeah all dynos are different… but still are very useful even if your numbers can vary from dyno to dyno. if i still had a high HP car i would have loved to get on a dyno and squeak out every last pony i could.
and the track is completely different story. how hard would it be to drive through the traps at 80mph where you can see exactly how fast you are going and realize that it is off from either your speedo or laptop. or have a GPS to confirm speed. there is a lot less variation in that situation and wouldnt seem to hard to correct.
you guys are all making a big stink about nothing really. Does the dyno work for what is needed… absolutely. Is WNY still waiting for an AWD dyno… absolutely.
if you want to get on a dyno so you can brag about how much HP it puts out on something that is not consistent between everyday i guess a mustang dyno isnt for you. id rather share track times and speeds any day.
I’m not looking to brag about anything. I just like things that are correct. What if the timing system at a track was only 5% off. So one second measured as 1.05 seconds. After 10 seconds, you’re a half second slow. That’s a HUGE difference. Now imagine you paid upwards of 50,000 dollars for this timing system… I’d be fucking pissed.
Again I’m not saying emery’s is wrong. But if one car dynoed 30% different within a week… one of them was wrong… I can’t get down with that.
I think you’re missing the point man. It’s not about being “off” or being “correct”. It is a different scale of measurement. Kelvin v Celsius. Kph v Mph. Etc. It is irrelevant whether you are going 100 kph or 62 mph. You are traveling just as fast. Your 240 # from a different dyno might be 200 on this mustang. When it comes to real world acceleration the number means nothing.
Looks like I missed a good time. 
we are back on this mustang issue :ehh:
I’m not missing the point. Horsepower and torque are defined units. The car puts out a certain horsepower. Both dynos are SUPPOSED to measure in the same units - HP and ft/lbs. That’s what they are designed to do. One of them is REALLY wrong.
An inch is an inch. A pound is a pound. These are not subject to interpretation.
If I have a ruler and you have a ruler, and mine measures a line as 9 inches, and yours measures the same line at 6 inches one of the rulers is WRONG.
Bottom line.
newman I am behind you 100% on this … I dont get how it can differ so much … but I gave up on my side weeks ago
Is there a “master dyno” somewhere that is a base for all dyno numbers?lol
Seriously though, what method is used?
How do you know if one dyno is high or the other one is low?
When we get measuring tools calibrated they use “master” sets.
Squirrel cage electric motors under controlled circumstances usually produce fairly accurate, repeatable results with output tied mathematically to number of windings, and type, amperage, voltage, etc.
^Now that makes sense because there are few variables.
So what is the problem then? All dynos should read(calibrate) the same if tested the same.
Apparently dynos don’t fall under government weights and measures. lol
355hp won this? wow. This was pretty cool still, I’ll try and make it to another one.
To Bart: What octane tune were you on?
93
yeah, like newman said, having a master dyno isn’t really the key. You should have a master HP/TQ source by which the dyno can be calibrated. Just like using weights to calibrate a scale.
It’s stupid that there are different types of dynos(all of which are fairly expensive), that don’t read correctly.
I am not bashing Emery or his shop STM. He needs a dyno to properly tune cars to their max potential. It’s not his fault they all suck.
lol what dyno puts down the best HP#'s I want to use that one?
You’re still missing the point dude. An inch is an inch and a pound is a pound. But an inch is not a cm and a pound is not a kg just like a dynapack # is not a dynojet # is not a mustang #. Your ruler measuring 9 inches is the same as my ruler measuring 22.86cm. Two different numbers for the same lenght. Two different interpretations of a line. Two different units of measurement.
A 10 sec car is a 10 sec car. That is an absolute. Whether it makes 600 on a dynojet or 500 on a mustang is irrelevant.
edit - when i mean absolute i am refering to same track conditions altitude temps etc etc etc.
UNITS OF MEASUREMENT ARE NOT UP TO INTERPRETATION. THEY ARE STANDARDS THAT ARE SET IN STONE. THAT IS THE FUCKING POINT.
According to the Tom dyno(which I built in my garage), I am pushing 700whp from just an intake!!
edit: proof -
why dont they make the measuring system universal? I know it would be $$ and probably a waste of money for the companies… but it would be nice…
edit: confusing…
I tried.