Help with 1/4 estimate
#1
Thread Starter
Joined: Mar 2011
Posts: 6,280
Likes: 31
From: Northwest Ohio
Car: 1991 Camaro RS
Engine: BBC 509 Merlin ii 9.6:1 pump gas
Transmission: ATI pro th350 sfi case. TSI 5500 st
Axle/Gears: Strange S60 4:10s
Help with 1/4 estimate
This car use to run mid/high 16's last fall. Now ive done some head work, intake work, and a mild cam upgrade.
My question is in your opinions, what would you estimate this car would do in the 1/4 mile with good traction???
Im hoping some one says 15's is possible. I recorded the video from 0-80mph and it was a calm day with a completly flat road. Thanks for the input.. And ya its a V6 so dont laugh you V8' guys!
Ive timed it at 14.5 secs from 0-80mph give or take a tenth or 2.
http://www.youtube.com/watch?v=_y6ZCgJs-iU
My question is in your opinions, what would you estimate this car would do in the 1/4 mile with good traction???
Im hoping some one says 15's is possible. I recorded the video from 0-80mph and it was a calm day with a completly flat road. Thanks for the input.. And ya its a V6 so dont laugh you V8' guys!
Ive timed it at 14.5 secs from 0-80mph give or take a tenth or 2.
http://www.youtube.com/watch?v=_y6ZCgJs-iU
#2
Supreme Member
Joined: May 2001
Posts: 2,009
Likes: 5
From: Pitman, NJ
Car: '89 IROC-Z
Engine: Canfield 195 headed 358ci
Transmission: TH350, Art Carr 9.5"
Axle/Gears: 3.92 Dana 44
Re: Help with 1/4 estimate
How did you "time" your car to get 14.5? If you used a stop watch your guess is probably waaaay off. By the time your eye sees something, your brain processes the information, and then sends the "command" to move your finger you have probably lost upwards of 5 tenths of a second... That means your car would be more realistically mid/high 15s...
If your basing this estimate off that video you could be even further off because the videos frame rate probably doesn't coincide with real-time.
If your basing this estimate off that video you could be even further off because the videos frame rate probably doesn't coincide with real-time.
#3
Thread Starter
Joined: Mar 2011
Posts: 6,280
Likes: 31
From: Northwest Ohio
Car: 1991 Camaro RS
Engine: BBC 509 Merlin ii 9.6:1 pump gas
Transmission: ATI pro th350 sfi case. TSI 5500 st
Axle/Gears: Strange S60 4:10s
Re: Help with 1/4 estimate
How did you "time" your car to get 14.5? If you used a stop watch your guess is probably waaaay off. By the time your eye sees something, your brain processes the information, and then sends the "command" to move your finger you have probably lost upwards of 5 tenths of a second... That means your car would be more realistically mid/high 15s...
If your basing this estimate off that video you could be even further off because the videos frame rate probably doesn't coincide with real-time.
If your basing this estimate off that video you could be even further off because the videos frame rate probably doesn't coincide with real-time.
When i got home after taking the video i loaded it on the computer and timed it that way. Listing for the engine to go( when i started ) and listened for "there it is" that i said when it was up to speed. And i was genourous with the #'s adding a few tenths to the total.
Last edited by fasteddi; 12-16-2011 at 04:54 PM.
#4
Thread Starter
Joined: Mar 2011
Posts: 6,280
Likes: 31
From: Northwest Ohio
Car: 1991 Camaro RS
Engine: BBC 509 Merlin ii 9.6:1 pump gas
Transmission: ATI pro th350 sfi case. TSI 5500 st
Axle/Gears: Strange S60 4:10s
Re: Help with 1/4 estimate
Keep in mind that if your reaction is delayed at the beginning and then it is delayed second time you do something. So if you were 3 tenths slow starting the clock then youll be close to 3 tenths off at stoping it. So they off set (somewhat) and youll really only be a little ways off. a few tenths. That makes up for me spinning the tires every time i tried to launch.
#5
Supreme Member
Joined: May 2001
Posts: 2,009
Likes: 5
From: Pitman, NJ
Car: '89 IROC-Z
Engine: Canfield 195 headed 358ci
Transmission: TH350, Art Carr 9.5"
Axle/Gears: 3.92 Dana 44
Re: Help with 1/4 estimate
When i got home after taking the video i loaded it on the computer and timed it that way. Listing for the engine to go( when i started ) and listened for "there it is" that i said when it was up to speed. And i was genourous with the #'s adding a few tenths to the total.
You are much better off buying one of the older g-tech performance meters or if you have a smart phone, download one of those apps that use it's accelerometer to do the same... They'll give you by far the most accurate reading but nothing is as accurate as the drag strip...
#6
Thread Starter
Joined: Mar 2011
Posts: 6,280
Likes: 31
From: Northwest Ohio
Car: 1991 Camaro RS
Engine: BBC 509 Merlin ii 9.6:1 pump gas
Transmission: ATI pro th350 sfi case. TSI 5500 st
Axle/Gears: Strange S60 4:10s
Re: Help with 1/4 estimate
No way you will ever get an accurate time using that method. Human reaction time as well as the video not being in sync with real time = your numbers are likely off on a big level.
You are much better off buying one of the older g-tech performance meters or if you have a smart phone, download one of those apps that use it's accelerometer to do the same... They'll give you by far the most accurate reading but nothing is as accurate as the drag strip...
You are much better off buying one of the older g-tech performance meters or if you have a smart phone, download one of those apps that use it's accelerometer to do the same... They'll give you by far the most accurate reading but nothing is as accurate as the drag strip...
Last edited by fasteddi; 12-17-2011 at 07:32 AM.
#7
Thread Starter
Joined: Mar 2011
Posts: 6,280
Likes: 31
From: Northwest Ohio
Car: 1991 Camaro RS
Engine: BBC 509 Merlin ii 9.6:1 pump gas
Transmission: ATI pro th350 sfi case. TSI 5500 st
Axle/Gears: Strange S60 4:10s
Re: Help with 1/4 estimate
Ok i used dynolicious today( the app for a friends i-phone) and the best try.. 15.9 in the 1/4 mile at 84 mph.... I dont know it thats right or not but it took me 5 tries before i finally go some sort of traction. 0-60 said 8.1 seconds.. so just a little slower then what i timed on my phone manually.
Last edited by fasteddi; 12-18-2011 at 03:13 PM.
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