Dyno Tuning
- Thread starter Tooloe
- Start date
The other thing to keep in mind is dyno #'s can vary pretty dramatically by how they are displayed. For example in some of the above sheets they are displayed in STD or uncorrected which is typically higher #'s than SAE (thats why they display them that way, they want you to come back and be happy with the big #'s you laid down). By changing settings in the dyno display, you can vary the #'s 10+% (Thats 40+ WHP on a stock motor!), so dont worry too much about #'s they are only for tuning. Also that mustang vs dynojet stuff is way overrated, Ive seen a TT viper make more power on a mustang than a dynojet, no changes made to the car, so dont buy into the 15% difference stuff. A mustang is typically lower but not always, again its a tuning tool, the real #'s are at the track.
Justin
Justin
HISS
Full Access Member
You are going to spray it as well right?
Tooloe
Full Access Member
HISS said:
yes sir i sure will be more than likely a 175 to a 250 some where in there:rock:
where are the numbers bro ? were waitin lol
Tooloe
Full Access Member
long story short the Sct tuner my builder would talk to his computer or something an he is trying to get one over nighted so i can get it tuned b4 i go back to work so.... we will have to wait i'm kinda bumed
The thing with the above sheet is that.. The truck is making that power for real at that location. The SAE just corrects the HP so if you were elsewhere at different temp, elevation, bla bla bla.. and tries to average it. So to say well if you were driving your truck in Texas it would be this hp.. But the reality is your not driving in Texas your in Toronto in my case and thats the HP my truck puts down in Toronto with in that particular season. So the way I see it is non corrected is more accurate to what you are actually putting down at your location.. Not what you could be putting down in Mexico.. So when the numbers read what they do I would say its more accurate than randomly taking 10% or so off the top to try to match your hp to other locations. or vice versa adding 10% to keep you up to another area where they put down more hp.... Kind lame the way I see it...
JMB Justin said:
FSTJACK
Full Access Member
Bragging rights or performance?
This is right on the money Justin in all the areas you have touched on.
The way to check HP is take it to take it to the track and see what the MPH is, and that will tell what true RWHP HP is.
There are so many dynos that are set up to be BRAGGING RIGHTS dynos it is a joke in the industry.
The dynomometer is a tuning tool as Justin says, the most important part of the puzzle is getting the HP to the ground. Suspension work is as or more important than big HP numbers.
The racers that run NHRA and IHRA stock classes do some amazing things with very small HP numbers. There are some of the lower class J/K/L stock cars that run mid to low 11's at only 110-113 MPH. They are doing this with cars that weigh over 3500 pounds and have less than 250 flywheel horsepoower.
JMB Justin said:
This is right on the money Justin in all the areas you have touched on.
The way to check HP is take it to take it to the track and see what the MPH is, and that will tell what true RWHP HP is.
There are so many dynos that are set up to be BRAGGING RIGHTS dynos it is a joke in the industry.
The dynomometer is a tuning tool as Justin says, the most important part of the puzzle is getting the HP to the ground. Suspension work is as or more important than big HP numbers.
The racers that run NHRA and IHRA stock classes do some amazing things with very small HP numbers. There are some of the lower class J/K/L stock cars that run mid to low 11's at only 110-113 MPH. They are doing this with cars that weigh over 3500 pounds and have less than 250 flywheel horsepoower.
SRT10VENOMOUS said:
But when everyone goes to compare, SAE is the only true fair comparsion (really the only true fair comparison is on the same dyno on the same day, but this is as close as we can get). For the guy on the internet saying "I have a stock truck that put down 480 and you have tons of mods and only put down 440, I must have a factory freak", hes probably wrong, he just dyno'd when it was density altitude of 1500' below sea level and his buddy dynoed when it was 6000' DA. I post everything in SAE smoothing 5 because thats the most accurate fair #'s, Doms truck made 1406whp uncorrected, but SAE it was 1365, so thats the # I used, I could go make changes on the way it is displayed and it would have made 1450+. BTW STD is not uncorrected, that is not what your truck actually made that day, STD is a correction factor just like SAE, it is just much more forgiving. Uncorrected is the actual power it made that day.
Justin
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