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Reload this Page 997 GT3/RS Performance Mod Thread******

GT3/GT2/GT Performance and Track Discussion on the Porsche GT3, GT2, and the Carrera GT
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  #46  
Old 07-21-2008, 03:01 AM
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and this is a dyno graph in the same dyno from a stock 996GT3
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  #47  
Old 07-21-2008, 03:04 AM
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and this is the dyno graph of my old tuned 997S...so,is strange for me the 15%DT loss
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GT3 clubsport,3,9ltr conversation by Kraus-systems and evotech(
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Last edited by greekm3; 07-21-2008 at 03:09 AM.
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  #48  
Old 07-21-2008, 03:47 AM
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please transalate this into HP or whp

Motorleistung (gemessen) 307.2kW @ 255km/h / 7567 1/min
Radleistung (gemessen) 280.3kW @ 255km/h / 7567 1/min
Verlustleistung (gemessen) 26.9kW @ 255km/h / 7567 1/min
Motorleistung (korrigiert) 306.2kW @ 255km/h / 7567 1/min
Drehmoment (korrigiert) 409Nm @ 6434 1/min (Motor)
Druck / Temp. (Standard) 1012mBar / 18°C (ISO 1585)
Oiltemperature


Quote:
Originally Posted by greekm3 View Post
and this is the dyno graph of my old tuned 997S...so,is strange for me the 15%DT loss
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  #49  
Old 07-21-2008, 03:53 AM
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please transalate this into HP or whp tooo after exhaust....

Motorleistung (gemessen) 326.1kW @ 255km/h / 7662 1/min
Radleistung (gemessen) 298.9kW @ 255km/h / 7662 1/min
Verlustleistung (gemessen) 27.2kW @ 255km/h / 7662 1/min
Motorleistung (korrigiert) 325.8kW @ 255km/h / 7662 1/min
Drehmoment (korrigiert) 431Nm @ 6238 1/min (Motor)
Druck / Temp. (Standard) 1012mBar / 19°C (ISO 1585)
Oiltemperature
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  #50  
Old 07-21-2008, 03:53 AM
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Quote:
Originally Posted by brn-997tt View Post
please transalate this into HP or whp

Motorleistung (gemessen) 307.2kW @ 255km/h / 7567 1/min
Radleistung (gemessen) 280.3kW @ 255km/h / 7567 1/min
Verlustleistung (gemessen) 26.9kW @ 255km/h / 7567 1/min
Motorleistung (korrigiert) 306.2kW @ 255km/h / 7567 1/min
Drehmoment (korrigiert) 409Nm @ 6434 1/min (Motor)
Druck / Temp. (Standard) 1012mBar / 18°C (ISO 1585)
Oiltemperature
is that your number from your dyno graph?..can i see it please?
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GT3 clubsport,3,9ltr conversation by Kraus-systems and evotech(
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Last edited by greekm3; 07-21-2008 at 03:56 AM.
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  #51  
Old 07-21-2008, 04:11 AM
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Yes before and after same mod........


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is that your number from your dyno graph?..can i see it please?
Last edited by brn-997tt; 07-21-2008 at 05:09 AM.
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  #52  
Old 07-21-2008, 04:22 AM
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Quote:
Originally Posted by brn-997tt View Post
Yes before and after.....
oopss ,something is wrong..i can't see nothing...did you attached a dyno graph?the dyno was MAHA?
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  #53  
Old 07-21-2008, 04:47 AM
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Folks-

It's early here, but a 15% loss from 460 hp is 391 hp. If you are only measuring hp at the rear wheels, and trying to calculate crank hp, then you are probably multiplying 392 x 1.15, which does not yield the correct answer. It is the engine output that is suffering the parasitic loss, not the rear wheel output that is adding a percentage of its power using that approach.

Thanks...
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  #54  
Old 07-21-2008, 05:01 AM
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Quote:
Originally Posted by greekm3 View Post
oopss ,something is wrong..i can't see nothing...did you attached a dyno graph?the dyno was MAHA?
this a a dyno of another car..... please tell me conversion...
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File Type: pdf Finally_Check_997_GT3RS__444_hp.pdf (88.6 KB, 29 views)
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  #55  
Old 07-21-2008, 05:08 AM
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Nice explanation makes sense.....

therefore 392whp = ?hp

the way i calculated was 392 x 1.15 = 450hp

but 460hp is a number that you cant get either way especially that you have two numbers to work with 392 and 15%.....

Quote:
Originally Posted by 911TurboS2 View Post
Folks-

It's early here, but a 15% loss from 460 hp is 391 hp. If you are only measuring hp at the rear wheels, and trying to calculate crank hp, then you are probably multiplying 392 x 1.15, which does not yield the correct answer. It is the engine output that is suffering the parasitic loss, not the rear wheel output that is adding a percentage of its power using that approach.

Thanks...
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  #56  
Old 07-21-2008, 06:55 AM
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Guys we are going nuts over a lousy 10 bhp. I do believe that a 15% loss of 460 = 391 but no need to sweat it.
I will post the dyno graphs later to day. Currently in the office and can not do it.

Cheers,
Ranger
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  #57  
Old 07-21-2008, 07:41 AM
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Ranger, does the FVD exhaust use mufflers or is it just header, cat, and pipe? Are you using FVD software? Please post graphs and video's. Your yellow GT3 looks awesome.

Thanx
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  #58  
Old 07-21-2008, 07:54 AM
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Folks-

Has anyone done a engine conversion to 3.8L, 3.9L or 4.0L?

I know that the Alex of SharkWerks did a 3.8L conversion to his GT3RS (see also Sept. 08 issue of Excellence). It does look like the next GT3RS will have both direct injection and the new 3.8L engine for ~450 bhp.

-Gerry
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  #59  
Old 07-21-2008, 10:06 AM
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WildBill glad to help with info on the system. Presently at work in the hospital and can not post the details. It will take a little time to put it together over the time that all mods have been done.
Will work on it later today.
The FVD system can be with or without mufflers. Obvious without system saves more weight and louder.
Basically headers, 200 cell cats, elbow pipe, stock center resonator and tips.
This is what I have and it's awesome.

Someone asked about software. I am not running FVD software.

Thanks,
Ranger
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07 Audi RS4 Imola yellow (Milltek exhaust)
06 E60 M5 Alpine white (heavily modded, 581 rwhp, 461 rw lbs/ft torque)
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  #60  
Old 07-21-2008, 10:37 AM
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Quote:
Originally Posted by WildBill View Post
Just completed my first performance (sound) mod. Installed the SharkWerks exhaust bypass. Talking about wicked in the high RPM range......I must have scared the socks off all the innocent bystanders during the test drive!!
+1, thanks alex
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