Interesting subject to debate, but I don't think it's true. Simple way to figure this out... Take a 200 bhp car and dyno it on a Mustang and Dynojet. (My actual figures may be flawed, so bare with me, but my logic is not flawed.) That 200 bhp car will dyno at let's say 180 whp on a dynojet (figuring 10% drivetrain loss for a FFWD on both dynos). On a mustang, which typically reads 10-15% lower than a dynojet, that car will make 162 whp. (Figuring 10% difference for this example as the constant.) That same car adds around 300 hp worth of parts netting him 500 bhp. On the dynojet he puts down 450 at the wheels. On the Mustang he would put down 405 whp.

Total - He gained the same HP overall at the crank. On the two different dyno's though, he gained -

Dynojet - baseline - 180 whp - modded - 450 whp = 270 whp gain

Mustang - baseline - 162 whp - modded - 405 whp = 243 whp gain

As you can see, the different dyno's will not show the same gains with all other factors being equal.

 

Steve, you need to take into account he is in MI, colder denser air, so more HP
I'd say you break 600 with the toon.

Try not to take offense to such an open ended ?. There are a LOT of factors that go into "How much hp will I make". Tuner, install, fuel, ect ect.
Expect the car to feel faster for a couple weeks, then you'll get used to it and need more. Thats what all of us do, and yes, I'm an addict.
2 more can join me, and we can have a meeting about it somewhere

 

well said Thegame

 

Yup, its a never ending battle.

My gauge is giving friends a ride and watchin them as I plant em in their seats.

 

No one will ride with me anymore

 

Didn't i mention the fuel type (93 octane). Tuner, install?? for tuner is suppose to make reliable power with out knocking the engine this would be true no matter who it is. AND I did mention ball park figures.

Ask the same question at the sti forums and you get nothing but help. I am still trying to figure out which one to buy based how how these cars react to aftermarket stuff. And responses like these show the crowd how owns these cars welcome potential owners.

 

well....I know of some crappy tuners, and some good tuners. Some guys get 40whp out of a tune, some get 70. So, yes, the tuner matters, imo.
As an owner of the car, of you want to base everyone else on here by me, sure, but thats short changing them (a lot-I'm an a-hole to everyone equally )
If the STi forums can help more then evom...well....I think that's a good place to stop typing.

 

c'mon man, lighten up. I was joking around with you. i'm really not a bad guy. its just funny because you asked THE MOST newbie question there could possibly be on this forum. Now I understand, we all need to start somewhere, but Search my man. Search the forum, i mean just put DYNO in the box for thread title and you'll pull up a MILLION threads of what people have, had and got dyno'd with. Sorry if I offended you

 

That 200 bhp car will dyno at let's say 180 whp on a dynojet (figuring 10% drivetrain loss for a FFWD on both dynos). On a mustang, which typically reads 10-15% lower than a dynojet, that car will make 162 whp. (Figuring 10% difference for this example as the constant.) That same car adds around 300 hp worth of parts netting him 500 bhp. On the dynojet he puts down 450 at the wheels. On the Mustang he would put down 405 whp.

Total - He gained the same HP overall at the crank. On the two different dyno's though, he gained -

Dynojet - baseline - 180 whp - modded - 450 whp = 270 whp gain

Mustang - baseline - 162 whp - modded - 405 whp = 243 whp gain

As you can see, the different dyno's will not show the same gains with all other factors being equal.[/QUOTE]

Nicely explained! However, I believe the great equalizer for this type of dynamometer data discrepancy is to look at the numbers in terms of percent of hp change. Using your example above the two dynos show the same 150% hp increase.

If the dyno has been calibrated, and the operator knows what the error is, than he can apply a correction factor and the numbers should be fairly accurate.

my .02!