David Floyd

No need to hide in the corner, cool and very unique car !!

special tool

yes, absolutely!!!

ehall

lol Don't worry about them. They were all severely beaten by skirt waering clergy when they were young, and this is all of the improvement that was possible.
You have a few in this thread that aren't afraid to seek each other out for a mutual circle jerk of technical masturbation.

Feel free to hang around. It's just about to get fun again.

ehall

oh and get yourself a Forge BOV already, and be done with the mess.

porshhhh951

For the record my 14.0 1/4 mile run was when my 951 was bone freggin stock down to the paper filter.

Some people just like talking **** what can I say.

the car as it sits right now is prolly a mid 12 with the same or better 60ft.

Tomas L

Thank you, as always you contribute in a constructive and humble maner.
Feel free to prove me wrong in any way.

ehall

hmmm...I think it's time to cook the popcorn! need another beer.

special tool

Yes - certainly I should bear the burden of proof???
I am not the one discrediting a calibrated instrument.
You and I go around and around on this, Thomas.
It is my opinion that the lack of sunlight has affected your judgement regarding testing equipment.

TurboTommy

Special,
what psi boost was your big dyno run. (I believe it was 24 psi)

Power = torque x RPM divided by a constant

Stock 951S has 247 bhp (if you can believe Porsche)

The only way you are increasing to 600 bhp from a stock 951S is through higher specific torque because your displacement and RPM (according to your dyno) are the same as the stock 951S.

It should be painfully obvious to you that your number is impossible to achieve unless your volumetric efficiency and thermal efficiency are astronomical, the likes of which are beyond comprehension to internal combustion engine physics.

"calibrated intrument" is just propaganda. It means nothing to me if I see "to good to be true" numbers.

Let common sense be your guide.

Tomas L

I work in a company were calibrated testing equipment is everything. Every single measurement instrument that in some way effects the production is calibrated at regular intervals so I think I have a pretty good idea on how measurement instruments should be handled.
What I don't understand is how dyno numbers can be regarded as accurate at the same time as people here seem to agree that DynoJet numbers are 10-15% higher than Mustang numbers. And of course DynoJet is the more accurate of them...

I do think dyno numbers can be useful when evaluating changes to one car but then they have to come from the same dyno and preferably be made at the same day and by the same operator.

And in the end I still stand by my opinion that doesn't seem so popular here.
It's not what a car has that's important, it's what it does!

eospeed

I think more people go to the dyno to get the AFR correct . The number is not important from dyno to dyno unless you just want to beat your chest about it.An if you need to do that just go race because in the end its about whos in front not who has 400 whp and who has 500whp. My 2 cents

ehall

Big John, pass me another beer. This is getting fun.
cripes!...got some popcorn in my teeth...TIME OUT!

Skunk Workz

Tool: If you only knew how much daylight we have in summer... ...even here "down south" we have 20-21 hours a day in July.
TurboTommy: Tool runs on "homebrew"...serious mix of aromatics and gas. He has a seriously increased VE and thermal efficiency,some of it I guess is a result of the burn speed of that juice,and the possible ignition settings he can run on that without knock. I find that "max hp bump" in the dyno peculiar,not to say unusual,but that can be any sort of tuning effects co-working at that rpm. Or not.

jimbo1111

So your saying that a calibrated instrument doesn't exist.
If I just purchased a new Z06 from a dealer that claims 505 hp. I should call BS and ask him for a 60-100mph time slip instead. I would have to tell him that a dyno doesn't exist that can accurately measure the real hp that GM claims.

I can honestly see how this 60-100 test is beneficial to someone that doesn't have a dyno close to where they live. Or can safely and legally do it on an open road. If this is the only testing method they have. Than use it. Don't try to lure others that don't have the ability to do the same test. Than portray yourself as having a faster car because nobody is up for your challenge. I believe that there are many dynos in europe. I suggest you try and find one if you would like to compare with us americans that can't do your type of testing.
Even in america. The only people that claim dynos are inaccurate are the ones that don't like there results.

porshhhh951

sure thing buddy