Mustang dynoes are best for tuning and dynojets are best for measuring whp. To what extent is this true?

As you know, the horsepower readings on a mustang dyno can be altered per the operator. However, due to eddy current brake, it can provide for a better/safer tune. Numbers on the dynojet cannot be changed, however, so is considered to be the "industry standard" for horsepower readings.

To get the best tune possible, would it be safe to say that one should only tune on a load dyno?

 

as long as you stay on the same dyno than theres no problems....you well see you gains and loses...

thats all you need to know unless you looking to buy yourself a dyno

 

Wait what are you trying to say? I'm not talking about horsepower numbers. I'm talking about tuning. When tuning on a non loaded dyno, will the ecu take a different path or show varied results from the real world (on the street)? Will ignition timing be affected on the streets when tuned on a non loaded dyno?

 

bump?

 

I don't think anyone except hardcore tuned cars on very aggressive tunes would notice.

With that said; IIRC a properly setup Mustang or DynoDynamics will load the car closer to real world street conditions than a Dynojet, thus making a safer tune on for the street/track.

I seriously doubt you would have ANY issues though as long as you have a good tuner on any dyno.

 

My car was tuned locally on a load bearing dyno. I will explain why I chose this dyno:

Any dyno can spin you wheels and do calculations but only a load bearing dyno can simulate real world conditions for you each and every time. These conditions are the same the car will endure when driving on the street or the track. The load based dyno will factor in engine load and wind resistance, something a non loaded dyno can not simulate. This is something that a tuner can explain more of - load based tuning... It does this all the while ensuring both sets of rollers in AWD mode keep the system rolling simultaneously.

Rollers being rolled simultaneously is extremely important on AWD cars such as the Evo versions which are connected with axles, transfer cases and drive shafts.


While alot of people like to base power off of dyno numbers, the only real way to test a cars power is the result of a timeslip at the track. The only thing with a track run, is human error and or experience level of the driver can alter the timeslip breakdowns.

One thing to keep mindful is when you go in for a dyno tune session, always do a base run, that way your gains is what you come away from the session with. If you plan on comparing your car with another, the only true way to do it mod for mod is to run both at the 1/4.

 

buh bumpppp

 

The load does slightly change but will only show affects on how the car runs on the smoothing and safety margin of the tune. Alot of good fast safe tunes have came off a Dynojet. I beleive the load bearing dyno effects MAF/ Load based systems ALOT more then MAP/ pressure based systems.

I like to road tune then go a to a dyno to just read WHP. Ive never tuned a car on a dyno.

 

On the way to the Dyno-day on the road I was hitting 290-300 load @ peak TQ .

On the Dynojet I was hitting 250-260 load @ peak TQ .

Above 5K its was about the same load as the road vs Dynojet .

 

Road load

Dynojet load