Grant
Viper Owner
Since there is a lot of talk about the performance of the '08 cars in a straight line (0-150 times and so on), I thought I'd share the results of my PerformanceBox testing. The PBox file is attached for anyone who wants to view it.
All tests were done on a level road with negligible wind (I ran in both directions anyway). The surface was ordinary asphalt, NOT a drag strip. The DA during the runs was around 400.
The (non-********) car is completely stock except for a MGW shifter and Woodhouse's motor mounts, with 800 miles on it. Its actually probably a bit heavier than stock, due to harnesses and tow straps, though it didn't have much gas in the tank at the time. The wing was set to position 2 (stock), and the splitter extension was installed. Chassis ride height and rake were set to SRT's rough race track recommendations (in other words, more drag and more downforce).
Time to speed: (with one foot of rollout*)
0-60: 3.89 (3.55)
0-100: 7.78 (7.44)
0-150: 17.01 (16.67)
Quarter mile:
Best ET's 60': 2.10 (I know this is terrible; I was mostly trying to avoid wheelhop or excessive slipping of the clutch)
Best ET: 11.54 @ 126.0 (I really don't know how some magazines got high-11s out of this car!)
Best MPH: 127.0 through the traps (128.2 terminal speed at 1320')
1/8th mile ET: 7.66 @ 99.70 (101.79 terminal speed at 660')
There was no significantly wheelspin after the initial launch.
I'm sure the car is probably capable of low-11s in ordinary conditions on a good asphalt surface. Had it of been warmer out and sun on the pavement (it was ~62F and nighttime), the PSCs would have surely worked better. With a willingness to heat the PSCs up (they are known to be rather terrible when cold) and/or slip the clutch more, I would think a 1.9x 60' time would be obtainable. The car seems to be capable of the same sort of longitudinal acceleration as my C5 on NT-01s is (I believe the NT-01 is the grippier tire when cold, but the Viper's chassis is likely able to put power down better), something in the neighborhood of 0.80 to 0.85 gee. The C5 would generally pull 1.9 to 2.0 60's under similar conditions.
Prior to these tests, I did a few race against a friend's C6Z (who also has a deposit down on an '09 ACR). From a stop or 1st-gear roll the ACR had the clear advantage, while higher speeds that advantage disappeared, until at very high speed the Z would pull back. Unfortunately this testing wasn't very scientific, as at that point I was having difficulty shifting the ACR quickly, and I did not get any PBox data from his car. Had I been driving the ACR like I was when these tests were performed, I believe the results would have been quite different.
* I believe the major US publications (C&D, R&T, MT, etc) use 1' of rollout. Edmunds lists results both with and without rollout. Due to the lack of NHRA drag strips in the rest of the world, I don't think international publications use any rollout at all.
All tests were done on a level road with negligible wind (I ran in both directions anyway). The surface was ordinary asphalt, NOT a drag strip. The DA during the runs was around 400.
The (non-********) car is completely stock except for a MGW shifter and Woodhouse's motor mounts, with 800 miles on it. Its actually probably a bit heavier than stock, due to harnesses and tow straps, though it didn't have much gas in the tank at the time. The wing was set to position 2 (stock), and the splitter extension was installed. Chassis ride height and rake were set to SRT's rough race track recommendations (in other words, more drag and more downforce).
Time to speed: (with one foot of rollout*)
0-60: 3.89 (3.55)
0-100: 7.78 (7.44)
0-150: 17.01 (16.67)
Quarter mile:
Best ET's 60': 2.10 (I know this is terrible; I was mostly trying to avoid wheelhop or excessive slipping of the clutch)
Best ET: 11.54 @ 126.0 (I really don't know how some magazines got high-11s out of this car!)
Best MPH: 127.0 through the traps (128.2 terminal speed at 1320')
1/8th mile ET: 7.66 @ 99.70 (101.79 terminal speed at 660')
There was no significantly wheelspin after the initial launch.
I'm sure the car is probably capable of low-11s in ordinary conditions on a good asphalt surface. Had it of been warmer out and sun on the pavement (it was ~62F and nighttime), the PSCs would have surely worked better. With a willingness to heat the PSCs up (they are known to be rather terrible when cold) and/or slip the clutch more, I would think a 1.9x 60' time would be obtainable. The car seems to be capable of the same sort of longitudinal acceleration as my C5 on NT-01s is (I believe the NT-01 is the grippier tire when cold, but the Viper's chassis is likely able to put power down better), something in the neighborhood of 0.80 to 0.85 gee. The C5 would generally pull 1.9 to 2.0 60's under similar conditions.
Prior to these tests, I did a few race against a friend's C6Z (who also has a deposit down on an '09 ACR). From a stop or 1st-gear roll the ACR had the clear advantage, while higher speeds that advantage disappeared, until at very high speed the Z would pull back. Unfortunately this testing wasn't very scientific, as at that point I was having difficulty shifting the ACR quickly, and I did not get any PBox data from his car. Had I been driving the ACR like I was when these tests were performed, I believe the results would have been quite different.
* I believe the major US publications (C&D, R&T, MT, etc) use 1' of rollout. Edmunds lists results both with and without rollout. Due to the lack of NHRA drag strips in the rest of the world, I don't think international publications use any rollout at all.
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