Has anyone performed a dyno test? There is one in town that has a four wheel Mustang dyno system. Does anyone have any info on this system? Will have results of the test today.

What town?

I hope the FL means Florida...

I'm in Boca Raton and would love to get my truck tested...

The Mustang Dyno simulates road-load during the test and typical results are lower than Dynojet dynos. Don't get hungup on the numbers as there are too many variables to compare one dyno to another. It's good to get a baseline for your vehicle if you plan to do any mods. Make sure you ask for the air/fuel ratio to be logged during the pull.

Just completed the 3 pull test on my completely stock JCSRT8 7700 miles. 333hp at 5250 rpm and torque 351 at 4500 rpm. Room temp around 115. Next test will be after installing GSM supercharger and ESP kit.

333, is that what everyone else is dynoing at? I guess it because the room temp was pretty hot. Was the Jeep warm when you dyno'd it?

I was thinking it should be in the 350-365 range

From what I'm reading and from what FLSRT posted, a dynojet system may post those numbers as it does not place a load on the vehicle. Also remember its AWD.

Just completed the 3 pull test on my completely stock JCSRT8 7700 miles. 333hp at 5250 rpm and torque 351 at 4500 rpm. Room temp around 115. Next test will be after installing GSM supercharger and ESP kit.

I think it should be more than that, if i re-call, my car was about 368HP.
Anyway, i guess because it was 115F out there..

:)

From a lot of posts that I have seen on other boards, the Mustang Dyno reads about 6-8% lower than a Dynojet on the same vehicle under similar conditions. Thats not to say that either of them are inaccurate, but that data collection techniques are different between the two dynos. What is most important to remember is that a dyno is just a tool to chart changes made to the base setup. Also, the dyno is just the first step in evaluating a change. It also has to pass the 1/4 mile test.:)

Dynojets calculate power by how quickly your vehicle accelerates a known mass (drums). Mustang or Eddy current dyno's actually use an electric brake, which better simulates real world load on the car/truck; making them better for tuning.
It used to be that Mustang dyno's (properly calibrated anyway) would read 5-10% lower than a comparable dynojet. However, being that anyone can manipulate any correction factors (temp, humid, barom pressure, etc.), and that most people want higher #s, that is no longer true.
The bottom line is your best bet is to stick with the same dyno every time to chart your gains.

What town?

I hope the FL means Florida...

I'm in Boca Raton and would love to get my truck tested...

I got mine done at a shop in North Miami (Opa Locka), and they use a Dynojet. They charged me $125 for 4 runs (or three, I don't remember).

Check out their website, http://www.twilightperformance.com/
Because we're in Florida, the heat drops our numbers a bit.
Here were my results back in March:
407

408

409

Had 981mi at the time, and truck never broke 350 rwh