996 GT3 372RWHP dyno resutls.....
04-07-2007, 10:19 PM
#16
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Thread Starter
Originally Posted by Z06
From what I have found/read the headers add torque and the cat's, mufflers and flash and slight HP.
370 at the wheels corrected is a good number.
Was 372 corrected rwhp?
Some programers have a portable flasher where you can flash it back to stock, Valet, 93, 104, 114 octane.
370 at the wheels corrected is a good number.
Was 372 corrected rwhp?
Some programers have a portable flasher where you can flash it back to stock, Valet, 93, 104, 114 octane.
That is straight from the dyno. What exactly do you mean by corrected? Corrected to the crank it's 428hp.
04-07-2007, 10:22 PM
#17
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A friend of mine has a stock GT3 that was put on a dyno jet. RWHP was at 355.2. We took a 12.5% correction to the crank, which put the HP at 400 even. I don't know if 12.5% is a good number vs. 15% on the Mustang, but that's what we did. A stock 997GT3 on the same dynojet was at 386.5 RWHP. If we take the same 12.5% correction, he's at 435 hp at the crank. Right on the money with the 35 hp spread Porsche lists the 996 v. 997 GT3s.
04-08-2007, 02:52 AM
#18
Three Wheelin'
Originally Posted by LUISJR993
That is straight from the dyno. What exactly do you mean by corrected? Corrected to the crank it's 428hp.
It's different than the conversion to crank hp.
Call and ask if it was corrected numbers and if so find what it was uncorrected.
My Z06 made 429 rwhp uncorrected and corrected it made 420..it was a 60 degree F that day. If on your test day it was above 75f maybe your corrected numbers are higher. Have not tested my GT3.
04-08-2007, 03:53 AM
#19
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Thread Starter
Originally Posted by Z06
Corrected means it has adjusted the rwhp dyno numbers to a certain standard of parameters such as temp not sure what else.
It's different than the conversion to crank hp.
Call and ask if it was corrected numbers and if so find what it was uncorrected.
My Z06 made 429 rwhp uncorrected and corrected it made 420..it was a 60 degree F that day. If on your test day it was above 75f maybe your corrected numbers are higher. Have not tested my GT3.
It's different than the conversion to crank hp.
Call and ask if it was corrected numbers and if so find what it was uncorrected.
My Z06 made 429 rwhp uncorrected and corrected it made 420..it was a 60 degree F that day. If on your test day it was above 75f maybe your corrected numbers are higher. Have not tested my GT3.
04-08-2007, 01:24 PM
#20
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Just my 2 cents from a factory tour last month.
Porsche will target 2.5% over the stated value for every engine so yes, the book values are conservative in every case.
I was told they do this because German law allows them to be within +/- 5% of the stated hp. Porsche dosn't ever want a product to hit the streets with less hp than promised so they build the motors aiming for + 2.5%.
My head math puts our motors at 390hp stock.
Not saying the mods aren't good, just an update from Stuttgart if you hadn't heard this before.
Porsche will target 2.5% over the stated value for every engine so yes, the book values are conservative in every case.
I was told they do this because German law allows them to be within +/- 5% of the stated hp. Porsche dosn't ever want a product to hit the streets with less hp than promised so they build the motors aiming for + 2.5%.
My head math puts our motors at 390hp stock.
Not saying the mods aren't good, just an update from Stuttgart if you hadn't heard this before.
