Mustang vs Dynojet

[paheff]

I'm quite certain that there will be a wide diversity of opinions on this one, but here goes. I'm under the impression that most shops use the same brand of chassis dyno. It's a given that all measurements should be done on the same dyno, by the same operator, under as close to the same conditions as possible. Also any losses/gains will be reflected as long as the measurements are done correctly.
According to a local speed shop, and this article (http://www.mustangdyne.com/?source=overture&OVRAW=mustang%20dyno&OVKEY=dynos%20mustang&OVMTC=standard)(actually a couple of articles if you follow the "recent articles" link on the left ) , however, there are two basic type of dynos, with one more accurately reporting wheel horsepower.
While there is no disputing e/t's at the race track, it seems that when it comes to "bragging rights", there may be some controversy. Bearing in mind that absolute gains can be measured on either, should I use brand A for it's higher reported whp, or brand B for it's more realistic numbers? :dunno:

[Bradley G]

as long as you always use the same type of dyno does it really matter?Conservative sounds like the way to go cause, who are you tryin to please??

[QWK SVT]

True, but most people tend to use Dynojets. There just seems to be more around.


As a result of using a dynojet, yourself, it will make your results more "comparable" to the others you see, here, and then you, too, can join the party...:party:

[HwyCruiser]

With either, my bigger concern would be for the accuaracy of the air fuel ratio measurement. Verify / tune a safe and consistent a/f and let the hp and tq curves fall where they may.

- JD

[SergntMac]

Actually, there are three styles of dynos, add the DynaPack 2000 to your list. It's the dyno that removes the loss/interferrence inherent to the Mustang and DynoJets, i.e. tires, ties downs, ect. The DynaPack removes the tires and measures directly from the axles at ground level. It's new technology and gaining popularity, because it's regarded as more accurate and delivers consistently. It's more portable too, when you consider the permanence and sq ft. consumption of the Mustang and DynoJet. I'ts less expensive for an owner to invest in, and with a few helping hands and a pickup/SUV, you can move and set up a DynaPack anywhere there is electricity.

As it is with any dyno, half the job is done by up to date software making S.A.E. corrections, a smart operator, and a good maintenence program for the test machine. It's likewise important for the owner to know what he's reading in the test report. If you're just looking for a peak shoot out, any dyno will do. If you're looking for 411 that will get you a better tune and peak performance, that 411 is not always in the final numbers.

Bottom line...It's one of many test tools, but not the last word. I've seen many low dyno numbers cars beat the snot out of the higher numbers on the blacktop...Just my .02c

[paheff]

Which of the two styles that I have available to me ( Mustang and Dynojet ) would be best for dyno tuning? Not hp numbers but the best tune.

[Dan]

I would suggest that you look for a DynoPack 2000 near you for the most accuracy. Esepcially if you are using it to track mod related HP increases.

I went with the DynoPack 2K with the Kooks upgrades. I have only posted the HP increase and not the total HP since I know that I used a machine that many others haven't.

When I want a number that I can post to compare with others I will seek out a DynoJet or other older technology based machine.

To find a dynopack location just visit their site. Though I couldn't fnd it I am sure that someone here can give the link.

-Dan