Garrett at GIAC
#17
12-07-2003, 05:08 PM
I think a stock 996TT does 320 to all 4 wheels on the GIAC dyno. The Mustang dynos are all calibrated different and some dynos may provide different data.
__________________
Evolution MotorSports | www.evoms.com
EVOMSit - intelligent tuning |www.evomsit.com
P: 480.317.9911
F: 480.317.9901
E: info@evoms.com
Home of the Worlds Fastest 997TT Porsche(s)
997TT Standing Mile = 234.6 MPH
997TT Standing 1/2 Mile = 217.09 MPH
Fastest 1/4 Mile = 9.29 @ 172.7 MPH
60-130 MPH Time = 3.28 Seconds
Evolution MotorSports | www.evoms.com
EVOMSit - intelligent tuning |www.evomsit.com
P: 480.317.9911
F: 480.317.9901
E: info@evoms.com
Home of the Worlds Fastest 997TT Porsche(s)
997TT Standing Mile = 234.6 MPH
997TT Standing 1/2 Mile = 217.09 MPH
Fastest 1/4 Mile = 9.29 @ 172.7 MPH
60-130 MPH Time = 3.28 Seconds
#18
12-07-2003, 05:14 PM
Todd, a 996tt has the ability to transfer as little as 5% and as much as 40% of it's power to the front differencial. How then does the 4wd dyno read the same to all four tires? Or am I not understanding what is really happening. Looking for help in understanding this.
#19
12-07-2003, 08:51 PM
Originally posted by cjv
Todd, a 996tt has the ability to transfer as little as 5% and as much as 40% of it's power to the front differencial. How then does the 4wd dyno read the same to all four tires? Or am I not understanding what is really happening. Looking for help in understanding this.
Todd, a 996tt has the ability to transfer as little as 5% and as much as 40% of it's power to the front differencial. How then does the 4wd dyno read the same to all four tires? Or am I not understanding what is really happening. Looking for help in understanding this.
Hope Todd doesn't mind me butting in!
The front and rear rollars on GIAC's mustang dyno are mechanically linked by a BIG_ASS toothed belt. The benefit is that front and rear wheels always see the same speed and the center diff/traction control is not in freak out/overload mode.
I heard from a good source that some of the other 4wd dynos have been responible for damage to the Porsche center differential. This is due to differences in front to rear roller/wheel speeds.
Jeff
#20
12-07-2003, 08:59 PM
Jeff, you are correct sir. They have to be locked as the Mustang is.
BTW I had no idea that was you when we were chatting about the turbos...I suspect that was you wasn't it??? You had to think I was an *** for not introducing myself...It just dawned on me that it was the "Jeff Moss" hooking the car up...My bad and apologies.
BTW I had no idea that was you when we were chatting about the turbos...I suspect that was you wasn't it??? You had to think I was an *** for not introducing myself...It just dawned on me that it was the "Jeff Moss" hooking the car up...My bad and apologies.
#21
12-07-2003, 09:21 PM
The Mustang Dyno has always appealed to me and is what AWE Tuning uses as well, over here on the East Coast. Because the front and rear rollers are mechanically coupled, the "apparent road speed" (i.e.: tangential velocity) of the front and rear wheels is equal. This simulates real world driving conditions very well and theoretically does not tax the viscous coupling any more than regular driving would.
#22
12-07-2003, 09:28 PM
Originally posted by PorschePhD
Jeff, you are correct sir. They have to be locked as the Mustang is.
BTW I had no idea that was you when we were chatting about the turbos...I suspect that was you wasn't it??? You had to think I was an *** for not introducing myself...It just dawned on me that it was the "Jeff Moss" hooking the car up...My bad and apologies.
Jeff, you are correct sir. They have to be locked as the Mustang is.
BTW I had no idea that was you when we were chatting about the turbos...I suspect that was you wasn't it??? You had to think I was an *** for not introducing myself...It just dawned on me that it was the "Jeff Moss" hooking the car up...My bad and apologies.
No sweat Stephen,
I would have introduced myself, but everone was so intense the chance did not present itself.
Jeff
#23
12-08-2003, 06:20 PM
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Originally posted by cjv
Scott,
Their posted dyno sheets show 1.5 bar boost being utilized. The shootout rules called for unleaded fuel only. They also said on the dyno sheet it was their racing gas program. There is two unleaded racing gases available in California. One is 100 and the other is 103 octane. The 100 is not widely available. The 103 is almost impossible to find. My guess is it is Union 76, 100 octane racing gas.
Scott,
Their posted dyno sheets show 1.5 bar boost being utilized. The shootout rules called for unleaded fuel only. They also said on the dyno sheet it was their racing gas program. There is two unleaded racing gases available in California. One is 100 and the other is 103 octane. The 100 is not widely available. The 103 is almost impossible to find. My guess is it is Union 76, 100 octane racing gas.
Yea, there are a good amount of 76's around w/ 100. I just saw the race gas and was curious. I thought the shootout rules called for 91 octane :dunno:
#25
12-09-2003, 08:49 PM
Originally posted by LSM
Can someone impose stock hp/torque figures from the same dyno on the Stage 5 and Stage4gtr graphs?
Lou
Can someone impose stock hp/torque figures from the same dyno on the Stage 5 and Stage4gtr graphs?
Lou
__________________
Evolution MotorSports | www.evoms.com
EVOMSit - intelligent tuning |www.evomsit.com
P: 480.317.9911
F: 480.317.9901
E: info@evoms.com
Home of the Worlds Fastest 997TT Porsche(s)
997TT Standing Mile = 234.6 MPH
997TT Standing 1/2 Mile = 217.09 MPH
Fastest 1/4 Mile = 9.29 @ 172.7 MPH
60-130 MPH Time = 3.28 Seconds
Evolution MotorSports | www.evoms.com
EVOMSit - intelligent tuning |www.evomsit.com
P: 480.317.9911
F: 480.317.9901
E: info@evoms.com
Home of the Worlds Fastest 997TT Porsche(s)
997TT Standing Mile = 234.6 MPH
997TT Standing 1/2 Mile = 217.09 MPH
Fastest 1/4 Mile = 9.29 @ 172.7 MPH
60-130 MPH Time = 3.28 Seconds
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