Dyno Results #2

[DIESEL FOOL]

We dyno tested our trucks again on Friday at Lightspeed Innovations in Red Deer with the 275 tunes in each. Stroken's with 8inch lift and 38's put down 486hp and 1011ft/lbs. My truck with 6 inch lift and 37's put down 476hp and 999.6 ft/lbs. I figured my truck may produce a bit more due to less lift and slightly smaller tires, but maybe it was the Volant filter he has? Could be I have 10 ply tires compared to his 8 ply, I have dual exhaust as opposed to his single, so that may have something to do with it. Who knows, but overall they were pretty close. Thanks to Cam for letting us smoke up his shop on a Friday.

[Pahrump]

You guys must need an AFE intake...I made more power than both those with the 250 tune....must a been the intakes...lol

[built4dtuff]

I tried 3 times to run the AFE on my 6.0! Those guys sold a product to me that they knew would not work with out throwing the check engine light and sending my truck into spazzems. I called them 2 days after I rcvd it and installed it and they said yes we have a new tube with a different MAF location and they would put me on the list for a new one. 3 MONTHS later I got it and it still didn't work without unplugging the EGR. Then every time I took it to the dealer(my 6.0 was in ALOT!!) they would plug it back in and as soon as I got on the freeway my truck would spazz out.

[DIESEL FOOL]

No Pahrump, we just did not use a correction factor. LOL

[DIESEL FOOL]

And Pahrump,
we did not do the runs with our Sawblades on. Just did it like real men. LMAO

[Stroken]

Picture of the Dyno Run Chart.
Its sad that it is a corrected Dyno Run I could not get the chart to read the real deal
The real # is 486HP / 1041 Torque @ 2500RPM not corrected at the wheels
I also smoked my 38's on the Dyno

[Pahrump]

And Pahrump,
we did not do the runs with our Sawblades on. Just did it like real men. LMAO

Mine were uncorrected as well...no sawblades...LMFAO..you should have...those are worth 40HP anyday!

[rrose]

why do you think a 6" lift and a 8" lift would be any different at all? Angle of the drive shaft?

[Pahrump]

The lift dont matter, only the different tires size/weight.

[Stroken]

The 24" X 12" wide KMC rims with 38" Mud terrains are around 100 pounds a peice. When they came in I tried to take the top one off the pallet and almost got tread marks head to toe. It suprised me how heavy they are. My truck has a shit load of shims under the steady bearing with the stock drive shaft. Deisel Fool is running a one peice drive shaft conversion.

[DIESEL FOOL]

Yes and both trucks smoked the tires real bad. We needed some fat honies there to sit in the box as the straps never really pulled the trucks down that much. They are used to doing dyno runs there on Hondas with lawnmower engines which don't smoke the tires unless doing a 6000 rpm clutch dump.

[DIESEL FOOL]

We forgot to say that we also put another buddies (future Saprtan customer) truck on the dyno which is stock except for an AFE intake. The truck made 261hp and 550 ft/lbs. However that AFE must be good for 30+hp though. Right Pahrump (Mr. sawblades)? lol

[NuttyProfessor]

We dyno tested our trucks again on Friday at Lightspeed Innovations in Red Deer with the 275 tunes in each. Stroken's with 8inch lift and 38's put down 486hp and 1011ft/lbs. My truck with 6 inch lift and 37's put down 476hp and 999.6 ft/lbs. I figured my truck may produce a bit more due to less lift and slightly smaller tires, but maybe it was the Volant filter he has? Could be I have 10 ply tires compared to his 8 ply, I have dual exhaust as opposed to his single, so that may have something to do with it. Who knows, but overall they were pretty close. Thanks to Cam for letting us smoke up his shop on a Friday.

What % load did they use?

Nutty

[DIESEL FOOL]

The dyno we were on this time was a Mustang MD250. The owner says it has no % load bearing features, it is an eddy current dyno, and does not use scales. He also said it has a 9 second hold back. Speaking Japanese to me.

[DIESEL FOOL]

I found this online and explains a couple of things.


Mustang MD250 vs. Dynojet 248C


Dynojet 248C

is actually an accelerometer whereby it uses a 3000-3200 pound drum that is used to create an inertia load on the vehicle being tested. The vehicle's horsepower (HP) and torque try to overcome the weight/inertia of the drum to accelerate it. As a result the software and electronics try to measure the horsepower and torque that the vehicle is developing to overcome the drum's weight and inertia. The resulting horsepower and torque will be higher than a true loading dyno because once the drum starts rolling not as much power is needed to keep it going. Example -- When pushing a car on a flat road, once the car starts moving not as much power (effort) is needed to keep it going. The software does not ask for vehicle weight or anything like horsepower needed to maintain 50 MPH (a number that is actually put out by E.P.A. and N.H.T.S.A.).

The Mustang MD250 dyno

is a true loading dyno, because it uses an inertia weight as well as an eddy current motor that is attached to the rollers. This eddy current motor creates a drag on the shaft by way of electricity that causes a magnetic field to try and overcome the torque going through the roller shafts. This current is controlled by software that is always trying to simulate load as if the car is driving in real world conditions. The real benefit from the loading dyno is the ability to maintain a load that allows a tuner to properly go through a fuel map or ignition map and tune the chip for optimum horsepower and torque. It has the ability to also simulate the IM240 emissions test as required in some states. It can check 1/4 mile times as well as times for 0-60 MPH and 0-100 MPH. It can also be used for road testing and simulation for drivability problems. As a result of the loading capability, the dyno numbers from a mustang dyno will come out lower than the inertia (dynojet) dyno.

[Pahrump]

Yeah Mustang dynos always read lower....I had a 5.0 that ws supercharged and all built up..made 524 on a dynojet and only like 495 on a mustang dyno

[Pahrump]

However that AFE must be good for 30+hp though. Right Pahrump (Mr. sawblades)? lol



You goddamn right!:D:p

[tangel]

I found this online and explains a couple of things.


Mustang MD250 vs. Dynojet 248C


Dynojet 248C

is actually an accelerometer whereby it uses a 3000-3200 pound drum that is used to create an inertia load on the vehicle being tested. The vehicle's horsepower (HP) and torque try to overcome the weight/inertia of the drum to accelerate it. As a result the software and electronics try to measure the horsepower and torque that the vehicle is developing to overcome the drum's weight and inertia. The resulting horsepower and torque will be higher than a true loading dyno because once the drum starts rolling not as much power is needed to keep it going. Example -- When pushing a car on a flat road, once the car starts moving not as much power (effort) is needed to keep it going. The software does not ask for vehicle weight or anything like horsepower needed to maintain 50 MPH (a number that is actually put out by E.P.A. and N.H.T.S.A.).

The Mustang MD250 dyno

is a true loading dyno, because it uses an inertia weight as well as an eddy current motor that is attached to the rollers. This eddy current motor creates a drag on the shaft by way of electricity that causes a magnetic field to try and overcome the torque going through the roller shafts. This current is controlled by software that is always trying to simulate load as if the car is driving in real world conditions. The real benefit from the loading dyno is the ability to maintain a load that allows a tuner to properly go through a fuel map or ignition map and tune the chip for optimum horsepower and torque. It has the ability to also simulate the IM240 emissions test as required in some states. It can check 1/4 mile times as well as times for 0-60 MPH and 0-100 MPH. It can also be used for road testing and simulation for drivability problems. As a result of the loading capability, the dyno numbers from a mustang dyno will come out lower than the inertia (dynojet) dyno.



While it is correct that the Dynojet is inertia, the basic fact is simple Force= Mass X Acceleration. The Dynojet MEASURES horswepower in this fashion then CALCULATES torque with engine RPM. The Dynojet 248 can't "load" a vehicle during an run but even though it takes less force to keep something rolling than to start it out, we are still sampling acceleration. The basic reason for Dynoing anything is to see baseline and if the changes you make net positive or negative results. No matter which dyno you choose be sure to use the same one consistently or you will not know what your changes are doing.

The Dynojet CAN load the vehicle for tuning or duplicating driveability issues but can not sample the power during this time.

I have seen very poor results and even terrible tuning mistakes from the operator not knowing how to properly adjust the load on the other dynos. You must make sure the operator know his stuff.

I also agree that loading is by far better for tuning but the factors involved in the mathematics of calculating the power and torque during this time have too much "margin of error" because of the "braking"mechanism to be used with total comfort for me. So when tuning just do 'seat of the pants' with load then make a full run no load to see results.

The Dynojet is the most accurate on the market for repeatability, so if you want true peak numbers NO dyno will be able to simulate road surface wind resistance, rolling resistance etc that dictate the amount of load on our diesels. Just watch boost if you don't believe me.

Also 1 last note; You will have much less problems with tire slipping on the Dynojet due to the diameter and surface of the drum. Any time tires slip the run is basically one for the recycle bin and should not be used for anything. Any operator worth his salt should know that! I know it is fun and cool to smoke 'em on the dyno (i've done it and probably will agian:)) it is useless.

I own a Dynojet so am biased. I also have a 6.4 Spartan tuned F250. Monday's numbers with 275 were 544hp and 1080 torque and 560hp 1188torque with methanol. Still tuning nitrous (Zex 82044) and have had promising results so far. The fuel pessure is dropping slightly at about 2600rpm so I need more volume also. I have Fass ordered and will have tomorrow.(Easily retrofitting Fass 150/180 from 6.0L to fit). I'll need it any way when the Elite turbos and nozzles arrive:):)

[DIESEL FOOL]

Yes the dyno is pretty fun if the guy running it is not trying to blow up your truck. I was dicking around with my DD yesterday and discovered I had only the 250 tune in when I did the last runs at 476hp and 999.6 tq. I thought it was the 275 I had in there. Stroken figures I should run it again but it is getting hard on my shiny new tires. I am positive now she will break 500 hp :)

[Pahrump]

Do it again....

[DIESEL FOOL]

10-4, will do again with pizza cutters.:cool:

[sledneck57]

I can put mine on next week too. My bottle is full and ready. Then you don't gotta put smaller tires on.and it has a real mans afe on it... They don't even sell the other intakes to people unless you have a vagina.lol.

[Stroken]

Reid,
What is so wrong with Vagina's?
I would rate them in my top 10

1. Beer
2. Snowmobile
3. Truck
4. Quad
5. Dirtbike
6. Streetbike
7. A partially shaved with landing strip snapper.
8. A fully shaved beaver
9. 70's bush
10. C36 ()()

[DIESEL FOOL]

Hey Ried,

Maybe you should remove your headlight assemblies to help out your AFE also?:p

[DIESEL FOOL]

All this talk about bush and beavers, I might have to start buttering up the wife again. Maybe forget about diesels for awhile then I might get somewhere.

[sledneck57]

Dream on with your wife. That headlight idea aint all bad though.

[Stroken]

I think what Reid is trying to say is that his Vagina at home is broken.....
While on the other hand ours at home are working O.K.

[DIESEL FOOL]

Speak for yourself there Stroken.:confused:

[Gerry]

I think his is okay at home because he's "Stroken" it :D.