What is a better dyno-Dyno Dynamics or Mustang?

[Permanent grin]

Hopefully something to tell soon.....

[niterydr]

the dd's don't have either of those. I believe the only actual inputs from the operator are transmission type, centre diff type and tyre pressure, so the operator cannot apply varying correction factors which is exactly why they are so repeatable between different operators and even different dynos.

André

As Ray pointed out, you can put in an x correction factor. We had a competitor doing that to us until we called them out on it (sent one of our good friends over there from our dyno to their dyno, made 15% more power. When we called them out, they said so it would be comparable to a dynojet). Now they use shootout mode.

DD has an "x" correction key. you can take the dyno numbers and have them multiplied by ANY % that you feel like entering. so dyno a car that makes 300whp and enter 40% in there and you get a nice dyno graph of 420whp. ask anyone who USES a dyno dynamics about that. the same goes for the mustangs dyno and the superflow. thats why you see them running so called dynojet numbers.

they dynojet has NO USER CORRECTION.. only weather which all dynos have. the weather reads live weather and gets printed on the bottom of the chart to weed out any heat lamp people. if you see a dynojet run thats really high power... and it has the weather printed on the bottom... its real and thats that. theres no other math involved.

im not saying dynojet is the best. ive tuned on many different dynos and they all have cool features. dynojet is the only one that is not user definable with an "x" multiplier and is the most widely used whp standard in the US. i dynoed my red car a year ago and made 520whp. i dynoed it the other day and it made 523whp then went 10.97@126@3825lbs on regular tires so i think the numbers are accurate too

The "X" Factor is bs. I know the numbers I put up on my car were not in shootout (inflated) numbers. I either posted atmospheric correction or raw numbers, whichever was lower.

What is this "shoot-out mode" then... isn't it a mode that cannot be modified so there is no possibility of fudging the numbers by the operator?

Cannot be modified, but has other factors in it that automatically factor in, such as weather and atmospheric correction. Problem is you can still muck with those, see the previous "space heater" remark made in this thread.

i know of shops that have a 15% cor factor in their DD and its definitely not on the print out. world wide is a handy thing about DD but they are not all that common here and not enough people use the shootout mode.

GTOJOE, yes the shootout mode is a fixed standard that cant be changed

Shootout mode locks out the 'x' factor, this is true. Car's make "More" on that number though. My friends galant picked up something like 100AWHP going from standard graphing, without an X, with weather corrections, to shootoutmode.

Dyno's are tuning tools.

[Ray Pampena]

the shootout mode reads higher than the standard with no "x" factor? that i didnt know. i never got to use the shootout while tuning cars. most shops always had some x factor in or the super low reading standard which is waaay low

[Sin'sVr4]

well, if i dont end up selling my vr4 ill definitly run it at the strip next season. With a new clutch and tranny should do better than the previous 121 traps i did

[HilbillyHomeboy]

Thanks for chiming in, Josh.

Jeremy

[Permanent grin]

I know the numbers I put up on my car were not in shootout (inflated) numbers.

You really ought to get your facts straight before spouting a whole heap of BS! Shoot out will inflate or deflate as conditions dictate. It is not an automatic inflation!

Cannot be modified, but has other factors in it that automatically factor in, such as weather and atmospheric correction. Problem is you can still muck with those, see the previous "space heater"

Other dyno's use weather station readings too not just dd's.

André

[Ray Pampena]

You really ought to get your facts straight before spouting a whole heap of BS! Shoot out will inflate or deflate as conditions dictate. It is not an automatic inflation!



Other dyno's use weather station readings too not just dd's.

André

i think he means over the dd standard numbers? he did own one of these for a long time. i dont have experience with shootout mode. ive only used dd with standard and X% modes

[HilbillyHomeboy]

Considering niterydr personally owned a DD, I'm going to take him at his word.

Jeremy

[niterydr]

the shootout mode reads higher than the standard with no "x" factor? that i didnt know. i never got to use the shootout while tuning cars. most shops always had some x factor in or the super low reading standard which is waaay low

I wouldn't say "always" higher, but in my experience I would put it as a "usually higher". The point of shootout mode is to lock all factors in to a preset condition. It is meant for comparison between Dyno Dynamic using shops. The correction factors utilized will appear on the bottom of the chart.

[niterydr]

Considering niterydr personally owned a DD, I'm going to take him at his word.

Jeremy

I have a love/hate relationship with dyno's, can't stay away from these threads, plus I need to get my teeth cut with this new forum. It is weird seeing the same topic here and on 3si.