Area Under the Curve
#121
07-08-2011, 03:14 PM
Nice work! What technique did you use? e.g. did you start at 55mph and then stomp on it?So I was in 2nd gear around 45mph and then shifted 73mph and then at 125mph approx. So two shifts.
Have ramped the boost up a little more now. Didn't have the vbox on yesterday but she will be well in to the 5 seconds. Expect to hit 2.4/2.5 from 60-100. 100-200 was 5.2 seconds on that run.
As I said, just running her in so trying to be gentle at the moment.
Ken
Last edited by 996ttalot; 07-16-2011 at 03:14 PM.
..certainly wasn't trying to incite anything. Personally I think Todd is a great tuner and runs his buisness top notch. I PROMISE everybody to have P-box #'s by Monday...
#123
07-13-2011, 07:28 PM
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Lol, I'll have some results up first I think.
Ken, that is a beast you have! Mike too! I've gotten into the high 6s/low 7s for 100-200 with a/c on in just 4th gear in temps over 80F and it feels FAAAST. Can just imagine how low 5s feel.
Ken, that is a beast you have! Mike too! I've gotten into the high 6s/low 7s for 100-200 with a/c on in just 4th gear in temps over 80F and it feels FAAAST. Can just imagine how low 5s feel.
#124
07-14-2011, 06:10 AM
Once I got near level you are experiencing now my butt dyno was just stuck on FAST. Improvements after that had to be measured with the PBox. Honestly, I cant tell a 6 sec 60-130 from a 5 sec one without looking! LOL!
#125
07-14-2011, 07:57 AM
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Mike, I'm glad you mentioned that. I was actually wondering what is considered a "noticeable" improvement once you get to a certain power level. I think I read that race gas with appropriate tune will knock 0.3 to 0.5s off a 100-200km/hr time. Doesn't sound like much but apparently the butt dyno says that racegas makes the car feel a lot stronger (with appropriate tune).
So the message I get is don't spend money to "only" get 0.5-1s knocked off the time. Wait till something comes around that offers substantial improvement such as 1-2s off the time. Now obviously once you get to low numbers the incremental improvements will be harder to get.
As an aside, I have also discovered that there is a definite technique to get the best times. I had originally tried to keep conditions the same by starting the 100-200 timed run at around 98km/hr then stomping on it. That would simulate real-world results (for example if you were on the track next to another car that wanted to race) as opposed to a paper victory by having the best time. Cars like the Viper and presumably Z06/ZR1 would probably take off from a roll whereas turbo cars have to wait a little bit for boost to build even when in the correct gear. I would like to see results for our cars from a roll of 100-200 or 60-130mph without building boost but that's not likely to happen and I bet the numbers would be a little less impressive for most of us.
So the message I get is don't spend money to "only" get 0.5-1s knocked off the time. Wait till something comes around that offers substantial improvement such as 1-2s off the time. Now obviously once you get to low numbers the incremental improvements will be harder to get.
As an aside, I have also discovered that there is a definite technique to get the best times. I had originally tried to keep conditions the same by starting the 100-200 timed run at around 98km/hr then stomping on it. That would simulate real-world results (for example if you were on the track next to another car that wanted to race) as opposed to a paper victory by having the best time. Cars like the Viper and presumably Z06/ZR1 would probably take off from a roll whereas turbo cars have to wait a little bit for boost to build even when in the correct gear. I would like to see results for our cars from a roll of 100-200 or 60-130mph without building boost but that's not likely to happen and I bet the numbers would be a little less impressive for most of us.
#126
07-14-2011, 03:46 PM
Mike, I'm glad you mentioned that. I was actually wondering what is considered a "noticeable" improvement once you get to a certain power level. I think I read that race gas with appropriate tune will knock 0.3 to 0.5s off a 100-200km/hr time. Doesn't sound like much but apparently the butt dyno says that racegas makes the car feel a lot stronger (with appropriate tune).
So the message I get is don't spend money to "only" get 0.5-1s knocked off the time. Wait till something comes around that offers substantial improvement such as 1-2s off the time. Now obviously once you get to low numbers the incremental improvements will be harder to get.
As an aside, I have also discovered that there is a definite technique to get the best times. I had originally tried to keep conditions the same by starting the 100-200 timed run at around 98km/hr then stomping on it. That would simulate real-world results (for example if you were on the track next to another car that wanted to race) as opposed to a paper victory by having the best time. Cars like the Viper and presumably Z06/ZR1 would probably take off from a roll whereas turbo cars have to wait a little bit for boost to build even when in the correct gear. I would like to see results for our cars from a roll of 100-200 or 60-130mph without building boost but that's not likely to happen and I bet the numbers would be a little less impressive for most of us.
So the message I get is don't spend money to "only" get 0.5-1s knocked off the time. Wait till something comes around that offers substantial improvement such as 1-2s off the time. Now obviously once you get to low numbers the incremental improvements will be harder to get.
As an aside, I have also discovered that there is a definite technique to get the best times. I had originally tried to keep conditions the same by starting the 100-200 timed run at around 98km/hr then stomping on it. That would simulate real-world results (for example if you were on the track next to another car that wanted to race) as opposed to a paper victory by having the best time. Cars like the Viper and presumably Z06/ZR1 would probably take off from a roll whereas turbo cars have to wait a little bit for boost to build even when in the correct gear. I would like to see results for our cars from a roll of 100-200 or 60-130mph without building boost but that's not likely to happen and I bet the numbers would be a little less impressive for most of us.
#127
07-24-2011, 12:44 PM
Join Date: Oct 2008
Location: Fastlane USA
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HP AUC from Dynos
Here are some HP AUCs calculated (3000-7200 rpm) for some big HP *****'s. Dynos were simulated from data taken from dynos published on this forum. Actual dynos used for the simulation are attached. As always, the results are open for interpretation....
Last edited by TTdude; 11-17-2013 at 11:22 AM.
#131
07-25-2011, 09:35 AM
Join Date: Oct 2008
Location: Fastlane USA
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Not sure Tom. Just pulled it off a Switzer thread, https://www.6speedonline.com/forums/...r911-dyno.html
#133
07-25-2011, 09:41 AM
Former Vendor
Not sure Tom. Just pulled it off a Switzer thread, https://www.6speedonline.com/forums/...r911-dyno.html
#134
07-25-2011, 10:43 AM
Join Date: Oct 2008
Location: Fastlane USA
Posts: 2,319
Rep Power: 244
That would be awesome!
#135
07-25-2011, 11:58 AM
Former Vendor
You got it. In the meantime I'm trying to dig up some logs from our 997TT that we ran 778 awhp with. If I can find 'em I'll email them over to you...