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First Time Out

Old Nov 1, 2020 | 03:20 PM
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Old Nov 1, 2020 | 05:12 PM
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Looks like fun!
How does the PDR compare to the timeslip?
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Old Nov 1, 2020 | 05:20 PM
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Originally Posted by wallyj
Looks like fun!
How does the PDR compare to the timeslip?
The PDR was pretty optimistic. The timing slip and my Dragy both had the 1/4 mile time at 11.43 and 118mph. The Dragy 0-60 was 3.05 with a 1ft rollout. Overall I was happy with the results. I had two good runs that were within 0.005 seconds of each other.




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Old Nov 1, 2020 | 05:55 PM
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Originally Posted by C8TOY
The PDR was pretty optimistic. The timing slip and my Dragy both had the 1/4 mile time at 11.43 and 118mph. The Dragy 0-60 was 3.05 with a 1ft rollout. Overall I was happy with the results. I had two good runs that were within 0.005 seconds of each other.

Nice run. Thanks for posting the data. With work as busy as it is it will probably be spring before I get to he track.
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Old Nov 1, 2020 | 09:20 PM
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Nice run and good information. Was this a Z51? Several of the guys at Bradenton are running 11.2s at 118/119 trap speed. You are right there or better with cooler weather. Awesome 60ft👍🏼

Last edited by Fore58; Nov 2, 2020 at 09:11 AM.
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Old Nov 2, 2020 | 06:06 PM
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Originally Posted by C8TOY
The PDR was pretty optimistic. The timing slip and my Dragy both had the 1/4 mile time at 11.43 and 118mph. The Dragy 0-60 was 3.05 with a 1ft rollout. Overall I was happy with the results. I had two good runs that were within 0.005 seconds of each other.

Thanks for posting, 60’ is up there with the best posted for stock C8s and PDR showed a 2.9 and dragy showed a 3.0 with rollout which makes me believe even more that the 2.6-2.8 0-60s that have been reported from PDR aren’t actually correct.

Last edited by PRE-Z06; Nov 2, 2020 at 06:08 PM.
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Old Nov 3, 2020 | 06:08 AM
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As I continue to consider the 0-60 time 0f 2.95 secs recorded by the PDR, I thought I would load the file into the Cosworth Toolbox.


Dragy 0 to 60



Maybe someone out there has a better insight on how the PDR presents the 0 to 60 time. The Dragy is much more in line with both the Time Slip and Cosworth.

As a follow up, I should have searched this issue before posting. Forum member bhvrdr posted a thorough writeup and video on PDR accuracy in July. It is interesting to note that the Cosworth Toolbox gets its performance data from the PDR recording but differs from the PDR presents on the screen.

Last edited by C8TOY; Nov 3, 2020 at 07:10 AM. Reason: Additional
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Old Nov 3, 2020 | 08:05 AM
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Originally Posted by C8TOY
As I continue to consider the 0-60 time 0f 2.95 secs recorded by the PDR, I thought I would load the file into the Cosworth Toolbox.


Dragy 0 to 60



Maybe someone out there has a better insight on how the PDR presents the 0 to 60 time. The Dragy is much more in line with both the Time Slip and Cosworth.

As a follow up, I should have searched this issue before posting. Forum member bhvrdr posted a thorough writeup and video on PDR accuracy in July. It is interesting to note that the Cosworth Toolbox gets its performance data from the PDR recording but differs from the PDR presents on the screen.
Thanks again for sharing, so the rollout deduction that’s factored into the 0-60 time displayed on the screen seems to carry over to the 0-100 and 1/4 times displayed unlike with the Cosworth data which appears to be more accurate.

Last edited by PRE-Z06; Nov 3, 2020 at 08:06 AM.
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