DYNO Runs

[tlowr4]

Hey guys,

I've been brousing the 'Cars in General' forums for a while, and have noticed the threads about everyone's DYNO runs. I had a brainwave (was a long and sad journey []) and thought we could group everyone's DYNO runs into one thread.

So, you know the drill. E.G. for the n00bs:

2006 Ferrari F430

Power : 307.9 HP

Torque: 331.7 NM

Results Graph:

Cheers,

t4

P.S. My standard disclaimer: I searched for something like this, and only found all the individual ones. Mods close if needed.

 

[5.7L]

that's sick.....but 90% of this kids on this game don't know what a DYNO is. lol

 

[Eric.]

You own an F430?

More that a Ferrari, of all cars, suffers a 35% drivetrain loses.

 

[Rotary Junkie]

You own an F430?

More that a Ferrari, of all cars, suffers a 35% drivetrain loses.

And that it only revs to 6000rpm, etc etc.

I believe he meant that the above was supposed to serve as an example, not that it's his car nor that it's the real dyno graph.

 

[Punknoodle]

I know it isn't the most impressive figure but I'm working on it at least, if you want to see the car that did it click on the link in my sig
By the way I just took, uploaded and posted that pic from my iPhone at which I am a novice (laptop away getting fixed under warranty) so if it's a weird size I apologize!

 

[Duke]

Here's a graph from my '96 Miata:

 

[SkylineObsession]

Never got a graph readout on my GTS-4, but it did 119kw (was running rich and on five cylinders - shoulda been 130kw or so?).

Haven't dynoed my GTS yet, but the former owner got 108kW in one run and another time he got 120kW.

 

[Adamgp]

Forgot where my graph is since I haven't dyno'd the car in about 3-4 years.

I remember the GTP putting down ~235hp and 484 ft/lbs at the wheels.

Horsepower was a little low because I had a big exhaust leak which caused it to run very rich, I fixed it shortly after and it should be around ~245-250hp now.

Also, according to the guy who was running my car on the dyno, the torque converter also locked up way sooner than normal which is why the torque # is so high.

 

[Eric.]

Torque is not measured at the wheels, FYI. Otherwise it would be many, many times what its supposed to be at the crank. Gears multiply torque.

 

[Adamgp]

Torque is not measured at the wheels, FYI. Otherwise it would be many, many times what its supposed to be at the crank. Gears multiply torque.

The car was run in 3rd gear which has a 1:1 ratio. Numbers were pretty accurate as to what they would be at the crank. Minus ~20% drivetrain loss of course.

 

[Parker]

I have a graph for one of my trucks around here. I'll see if I can post it up later.

'97 Dodge Ram 2500. 5.9L Cummins Turbo Diesel, 5spd NV4500 transmission. 716rwhp and 1200+ft/lb torque.

 

[5.7L]

I have a graph for one of my trucks around here. I'll see if I can post it up later.

'97 Dodge Ram 2500. 5.9L Cummins Turbo Diesel, 5spd NV4500 transmission. 716rwhp and 1200+ft/lb torque.

WOOT CUMMINS BABY. Mind telling me your upgrades?

 

[Jay]

The car was run in 3rd gear which has a 1:1 ratio. Numbers were pretty accurate as to what they would be at the crank. Minus ~20% drivetrain loss of course.

1:1 trans maybe but you forget there is a gear reduction differential and tyre size to account also. No gear you select (even overdrives) will give you a total 1:1 flywheel to ground. Flywheel torque would have to be calculated with total gearing in mind (as well as drivetrain loss as you mention).

 

[astrosdude91]

I'd hate to put my Tundra on a Dyno. I'm sure it won't have as much power as I think it does.

 

[Adamgp]

1:1 trans maybe but you forget there is a gear reduction differential and tyre size to account also. No gear you select (even overdrives) will give you a total 1:1 flywheel to ground. Flywheel torque would have to be calculated with total gearing in mind (as well as drivetrain loss as you mention).

It still was pretty accurate. When I dyno'd the car bone stock, both hp and torque numbers were were right were they should be, with a 17-20% drivetrain loss factored in compared to factory flywheel ratings.

If I ever get the car dyno'd again, I will be sure to tell them to do it correctly and either yank the engine out of the car, or bring out the giant calculator.

In all honesty, I could care less what it makes at the flywheel. It's how much of that power makes it to the ground that I care about.

 

[kingcars]

Here are the 2 best pulls that my 306 made last year. Note that these pulls were unknowingly done with wiped out main bearings and no oil pressure

She makes awesome torque at low rpms and throughout the rpm band. The engine has since been rebuilt with a few minor upgrades along the way. Rock solid 60lbs of oil pressure now 👍

 

[niky]

In all honesty, I could care less what it makes at the flywheel. It's how much of that power makes it to the ground that I care about.

Hear! Hear!

---

After seeing all these dynos... mine are staying off the site. Mine are pathetic.

 

[tlowr4]

I believe he meant that the above was supposed to serve as an example, not that it's his car nor that it's the real dyno graph.

 

[Rotary Junkie]

Hear! Hear!

---

After seeing all these dynos... mine are staying off the site. Mine are pathetic.

Mine would be worse.

Stock 2.3, autobox, etc etc.

 

[Murcie_LP640]

From the factory the R31 Skyline made 155hp...even if I put it on a dyno I wouldn't be expecting much.

Dunno if they're still lying around somewhere but I might be able to scrounge up a pic of SIC EM's dyno when it had the ECUTek and exhaust fitted.

 

[Sickbimmer]

I'll play. Here is my 2003 HPF turbo M3

 

[Thatman]

So after looking at the rev limit topic it occurred to me that I never posted in this thread.

Thats the TII.
And then and older dyno that tells there is something wrong with the old rex.

 

[SkylineObsession]

Finally dyno'ed my GTS Skyline, and it got 0.2kw less than it did for the previous owner.

107.8kw (or 144hp at the rear wheels). Its about 155hp at the flywheel from factory. If i remember i'll take a pic of the readout.

Here's the video of it screaming away on the dyno.

For comparisons sake, my fiance also has a Skyline GTS, but doesn't have as many mods as my one - hers made 97kw.

 

[Bottoz]

2003 Mustang Cobra - Loved the Torque. Any Gear = GO!
573hp 542tq

Ariel Atom
220hp 200tq

2008 MINI Cooper S - Turbo + 2600lbs = Fun & MPGs

 

[R1ch85]

Here's mine. I've done a couple of small things since this run so it may well be 260+ now.

 

[Keef]

That was before a new air filter and exhaust. I'm curious whether or not a properly designed exhaust gained a couple powers.

 

[Thatman]

Whoa, your dyno looks nothing like the two of mine, how .

 

[Keef]

That's because both of yours are broken. You already knew your NA secondaries weren't working, and something bad is going on with your T2's torque curve. Something bad.

 

[Eunos_Cosmo]

Torque is not measured at the wheels, FYI. Otherwise it would be many, many times what its supposed to be at the crank. Gears multiply torque.

That's why they generally calculate out the gearing or run the car in the clostest ratio that equates to a final of 1:1 (usually 4th or 5th gear)

Edit: Which, after looking at your post again, might have been what you meant.

 

[Thatman]

That's because both of yours are broken. You already knew your NA secondaries weren't working, and something bad is going on with your T2's torque curve. Something bad.

The N/a was broken yes. The problem with my TII Dyno was the guy that did know how to work the computer Dyno wasn't there that night. Notice how that one was in mph and not in RPM.