does anyone else think this is far fetched a little

[Wicked_Sludge]

The local college does dyno runs....perhaps I should take mine out there and see what it throws down at the wheels, just for fun. So we know what the 4.0 truly puts out.

i think you should. and maybe we should fax a copy of it to jetchips and see what excuses they have.

 

[Jason]

dyno sheets are useless without torque figures anyway...and that 3.0 sheet is a joke.

Torque = (HPx5252) divided by RPM.

All you need is HP or torque numbers and you can calculate the rest.

 

[Wicked_Sludge]

i realize that...but im not going to plot every point on that graph by hand. dynos measure torque at the wheels and calculate horsepower afterwards, so theres no reason the torque shouldnt be on there.

edited to make sense

 

[Twizzler09]

Gonna make my way to the college tomorrow morning and look into it. I've got Thursday/Friday off this week so if things work out I'll have the 4.0 numbers by the end of the week.

 

[Maverick]

i think you should. and maybe we should fax a copy of it to jetchips and see what excuses they have.

I think Jetchips claims are total B.S., but faxing copies of another dyno sheet would prove nothing. Unless you were trying to claim that their gains are not accurate. They all read differently. You could have two identical dynos sitting next to eachother and run the same car on them and have (sometimes vastly) different outcomes. They are more of a tool for measuring gains and tuning cars. Not for the amount of HP or TQ your car actually has. The only thing you could find out is whether or not the gains in HP and TQ are accurate (which I think is also B.S.).

 

[Wicked_Sludge]

You could have two identical dynos sitting next to eachother and run the same car on them and have (sometimes vastly) different outcomes.

uh, not if the dynos are properly calibrated. the whole point of dynamometers is to provide an accurate (and thus, consistant) reading of a vehicles power output. if all dynos read differently...what would be the point of having a universally accepted measurement of power (horsepower).

one horsepower is one horsepower no matter what dyno its on. if your dyno reads 1 horsepower as .9 or 1.1 horsepower, its broke.

 

[Jason]

I think the phenomenon Maverick is talking about is operator variance. The operator of the dyno can make a huge difference.

 

[rangerbum]

Please guys, cant you see that the constant fighting is tearing us all apart? Why cant we all just get along?

 

[Kdawg532]

not to dig this out of the grave or anything but Twizzler did you ever get those Numbers?? oh and BTW after about 10 tanks with and 10 tanks with out the chip, There was virtually NO CHANGE in fuel econ, and I cant feel any power difference so I took it off before I fried the ECU

 

[Will]

Good man.

Seriously, this whole economic thing we've been going through should have taught us all something about knuckleheads.

 

[AllanD]

The one that doesn't pass the laugh test is the one for the 1998 Lincoln Mk8

Sub 200hp from a 4.6liter DOHC v8 that's factory rated at 290hp?

Yeah Right... if the transmission had that much parasitic drag it'd take the mississippi river to cool the phucker.

I think they were definatly doing a bunch of rectal calculation


AD

 

[Kdawg532]

mhmm, I just feel embarrassed to say that I fell for it

 

[mentalbreakdown00]

Ok, from what I have been told by some in the industry on these hp claims this may make more sense of some of them and less of others, but here we go. Let's say you see an advertisement for an intake air system with a claim of 15 hp improvement. Now more than likely, just that alone will not create 15 hp. What they did was to add after market exhaust with maybe headers, and done a tune to it, then dyno it with the factory intake system, then put on the intake air system and try it again to see how much they gain...and they could do almost a complete bolt on setup including intake, heads, cam and all before they get that 15 hp number over the stock intake. This info came from more than one person that I know that works in these kinds of industries, read the fine print very carefully....

 

[feellnfroggy]

I didnt bother with readin the second page of this post, however you guys are forgetting that different dynos will show different numbers at exactly the same time. The mustang dyno is one of the best, but its a lil over rated. And the jet chip tuner will provide much more results than just a chip. They remove the rev limiter completely with these tuners just as sct and diablosport do. Almost 50 hp gain is a lil off the wall, but not undoable. Thats the beauty of efi. timing curves and higher octane fuel, which I dont remember them specifying.