[hl0m4n]

there are so many dynos out there but which are best suited (rwd, fwd, awd), accurate, etc? so far i know the following, please list if there are more:

dynojet
mustang dyno
dyno dynamics
dyna pack

thoughts? help much appreciated. thanks.

[e92htx]

Mustang dyno.

It's the most accurate one.

A mustang dyno might read 250whp and you dynojet might read 297whp....more or less..

[hun77777]

i know dynojet gives you probably the highest numbers and heard that md and dd are conservative side...

[JayKay335i]

Its all relative. Mustangs are said to be heart breakers and dynojets are glory runs. They all give you a rough estimate of power. They are really best for comparing stock to tuned numbers and dialing in performance.

[Tiago@VRSF]

You can make a Mustang Dyno read as high as you want if you mess with the correction factor.

Honestly there's not best dyno. As long as you do a baseline run you'll get accurate results. Just don't cross compare charts...

[Terrance28]

The dynolicious app on the iphone jk lol.

[jblackwell]

The Maha and Mustang dynos are the best in my opinion.

[hun77777]

honestly i don't really care which dyno as long as it's comparison between base run and after...

[BaMBaM4002]

i used a dynapack and dynojet before. And from what i remember, the dynajet will read higher because its reading flywheel HP not wheel HP

Some pics from my dyno days with FWD:

[hun77777]

200whp at 7900 and 143lbft at 6200... dayum!

[BobVader]

Originally Posted by BaMBaM4002

i used a dynapack and dynojet before. And from what i remember, the dynajet will read higher because its reading flywheel HP not wheel HP

Some pics from my dyno days with FWD:

Flywheel hp ????. This dyno read whp... you make a mistake (I think)

[twinturbopg]

Originally Posted by Terrance28

The dynolicious app on the iphone jk lol.

I love that app...just need to get a reader to tie in with my Rev app.

[BaMBaM4002]

Originally Posted by BobVader

Flywheel hp ????. This dyno read whp... you make a mistake (I think)

Read the dyno sheet.

Up top : "Fly Wheel Torque" "Fly Wheel Horsepower" where do you see WHP ??

Look at the pic i took of that black car, see how the dynapack connects directly to the hub?

[old account 1]

Originally Posted by hun77777

i know dynojet gives you probably the highest numbers and heard that md and dd are conservative side...

You are comparing an inertia dyno to load dynos with large counterweights and a PAU. For what it's worth, you can also acquire dynojets with a load option. These will read close to a properly setup mustang/dyno dynamics.

[BaMBaM4002]

Originally Posted by hun77777

200whp at 7900 and 143lbft at 6200... dayum!

I know right. It was my integra with a B20vtec engine, built it myself This was all before i got into Forced Induction
But none the less this is Fly Wheel HP. I had my teg dyno'd on a dynojet and my actual wheel HP was rated at 190.2 :\

[joec500]

My guess for actual tuning purposes...I would go with a Dynopack....the variables you can remove the better IMO....

[BaMBaM4002]

Originally Posted by joec500

My guess for actual tuning purposes...I would go with a Dynopack....the variables you can remove the better IMO....

Which is why i did it besides the fact that i wanted to see higher numbers lol

[old account 1]

Originally Posted by joec500

My guess for actual tuning purposes...I would go with a Dynopack....the variables you can remove the better IMO....

For tuning purposes, you want to emulate street load as best as possible. Else, when real load is applied the calibration will change considerably. The same can be said about inertia dynojets. This is why we chose a mustang 500SE for software development, our data collection is the same whether it be on the dyno or the street.

[old account 1]

Originally Posted by TrackRat

The most accurate dynos are engine dynos. That is why all car companies use engine dynos for engine development and chassis dynos for emissions work. Chassis dynos can be accurate if properly engineered, designed, built, maintained and operated. I've not seen many chassis dynos maintained or operated properly, thus you typically get pretty worthless and mostly inaccurate data. Chassis dyno guys don't like hearing this but it's true.

That being said some people who know what they are doing have taken the same car and dynoed it on a properly maintained and operated Mustang and Dynojet and gotten the same power output curves within 3 hp, so it can be done, but rarely is done correctly. Many dyno operators don't even know how to conduct a proper dyno test so what you get is pretty worthless. If you can find a competent dyno tech with a properly calibrated and operated dyno, then pay them the price for a proper dyno test. A dyno is a tool. When used properly it yields useful info. When improperly used it's a waste of time and money.

Base development is performed on an engine dyno. After which, car companies will spend hundreds of hours on a chassis dyno and on the street after the initial base software is created on an engine dyno. We have rented out our dyno to OEMs in the past for their own software development.

[BaMBaM4002]

Originally Posted by TrackRat

The most accurate dynos are engine dynos. That is why all car companies use engine dynos for engine development and chassis dynos for emissions work. Chassis dynos can be accurate if properly engineered, designed, built, maintained and operated.
That being said some people who know what they are doing have taken the same car and dynoed it on a properly maintained and operated Mustang and Dynojet and gotten the same power output curves within 3 hp, so it can be done, but rarely is done correctly. Many dyno operators don't even know how to conduct a proper dyno test so what you get is pretty worthless. If you can find a competent dyno tech with a properly calibrated and operated dyno, then pay them the price for a proper dyno test. A dyno is a tool. When used properly it yields useful info. When improperly used it's a waste of time and money.

Great summary, i agree, i researched for months before finding the right tuner for me. Finally found a guy who knew what he was doing. I've seen some people who literally put up the money to buy and install a dynojet and then simply read the manual on how to operate; it doesnt quite work like that. It's an art knowing how to operate it and work a tuning program to its potential.

[BaMBaM4002]

Originally Posted by Austin@GIAC

For tuning purposes, you want to emulate street load as best as possible. Else, when real load is applied the calibration will change considerably. The same can be said about inertia dynojets. This is why we chose a mustang 500SE for software development, our data collection is the same whether it be on the dyno or the street.

Exactly, i mean who is going to pull their motor out and have it dyno'd on a real engine dyno just to find the bhp. It wont serve you much good when comparing to other tuned drivers on the street. "Yeah i got 400bhp" "ok i have 350whp" guess whos got the higher chance of winning lol

[hun77777]

Originally Posted by BaMBaM4002

"Yeah i got 400bhp" "ok i have 350whp" guess whos got the higher chance of winning lol

my money goes to whoever is lighter and has lighter car at that power!