[Z06] Will I ever get in the 10's....?
11-18-2007, 09:16 PM
#1
Safety Car
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Will I ever get in the 10's....?
I have been chasing a 10.99999 for a few years now, and it has escaped me. 
Took a trip to the drag strip today, hoping to finally get one as the weather looked like it may be okay, but still wound up at around 85 degrees.
Anyhow, I have made a total of 11 passes since I have owned the car. Three of them were DNF as the clutch went away on me, one the active handling decided to recalibrate right in the middle of my run, and the other 7 when clean passes.
My new PB today was as follows:
The car was run on drag radials, has a Jeremy Formato tune, a ported intake and Tb, a Vararam, and gutted cats.
I am happy that I am getting faster, but damn, gimmie just one 10 sec run!!!
Took a trip to the drag strip today, hoping to finally get one as the weather looked like it may be okay, but still wound up at around 85 degrees.
Anyhow, I have made a total of 11 passes since I have owned the car. Three of them were DNF as the clutch went away on me, one the active handling decided to recalibrate right in the middle of my run, and the other 7 when clean passes.
My new PB today was as follows:
The car was run on drag radials, has a Jeremy Formato tune, a ported intake and Tb, a Vararam, and gutted cats.
I am happy that I am getting faster, but damn, gimmie just one 10 sec run!!!
Last edited by KLLRVET; 11-20-2007 at 07:43 AM.
11-18-2007, 10:09 PM
#3
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11-18-2007, 10:10 PM
#4
Melting Slicks
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With your 60 foot and mph, I predict you will run 10.8's with practice.
Good luck!
11-18-2007, 10:14 PM
#6
Former Vendor
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You will get there. In my old camaro I used to have the same problem. 10's eluded me for a long time. I finally got my wife to join me at the track and Bam!!! 10's So when I knew it was time for some 10's again with my Z. I brought my wife out to the track and on my second pass 10's poped and now its no problem. Its just crossing the hurdle. Trust me I had the problem when I tried to get into the 12's way way way back. lol
11-18-2007, 10:17 PM
#7
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Tony
11-19-2007, 07:30 AM
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Hi Tony.
11.08 at seven clean passes is an accomplishment in itself. So congrats on that.
Keep in mind it generally takes 30-50 passes to attain your natural lower limit. You're well short of that. But the difference between 11.08 and 10.9x is in the mix of small adjustments identified below.
Your 330'-1320' incremental on that pass was 6.33. That's sufficient to crack under 11.00.
I'd suggest focusing on the first 330'; that's the launch and the 1-2 shift. You will need to
(1) knock the 60' down to about 1.67 or 1.68. And
(2) get the 330' to 4.66 or better. Assuming you achieve (1), that means getting the 1-2 shift dead-nuts at 7000 and ensuring you are in the racing groove when it occurs to reduce wheel spin.
Toward (1), I'd suggest a review:
(1) recheck how you are dealing with the water box to eliminate stray water post-burnout
(2) rear psi readjusted before each pass
(3) proper burnout to the right amount of smoke
(4) speed of the throttle squeeze and
(5) proper shallow stage.
(6) correct alignment in the racing groove
The 330'-1320' incremental will need to be held constant. For every hundredth it's reduced, you get a small cushion under 11.00 or an extra hundredth in the 330' budget.
Good luck and let us know of your progress.
Ranger
11.08 at seven clean passes is an accomplishment in itself. So congrats on that.
Keep in mind it generally takes 30-50 passes to attain your natural lower limit. You're well short of that. But the difference between 11.08 and 10.9x is in the mix of small adjustments identified below.
Your 330'-1320' incremental on that pass was 6.33. That's sufficient to crack under 11.00.
I'd suggest focusing on the first 330'; that's the launch and the 1-2 shift. You will need to
(1) knock the 60' down to about 1.67 or 1.68. And
(2) get the 330' to 4.66 or better. Assuming you achieve (1), that means getting the 1-2 shift dead-nuts at 7000 and ensuring you are in the racing groove when it occurs to reduce wheel spin.
Toward (1), I'd suggest a review:
(1) recheck how you are dealing with the water box to eliminate stray water post-burnout
(2) rear psi readjusted before each pass
(3) proper burnout to the right amount of smoke
(4) speed of the throttle squeeze and
(5) proper shallow stage.
(6) correct alignment in the racing groove
The 330'-1320' incremental will need to be held constant. For every hundredth it's reduced, you get a small cushion under 11.00 or an extra hundredth in the 330' budget.
Good luck and let us know of your progress.
Ranger
Last edited by Ranger; 11-19-2007 at 07:33 AM.
11-19-2007, 08:43 AM
#9
Burning Brakes
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Hi Tony.
11.08 at seven clean passes is an accomplishment in itself. So congrats on that.
Keep in mind it generally takes 30-50 passes to attain your natural lower limit. You're well short of that. But the difference between 11.08 and 10.9x is in the mix of small adjustments identified below.
Your 330'-1320' incremental on that pass was 6.33. That's sufficient to crack under 11.00.
I'd suggest focusing on the first 330'; that's the launch and the 1-2 shift. You will need to
(1) knock the 60' down to about 1.67 or 1.68. And
(2) get the 330' to 4.66 or better. Assuming you achieve (1), that means getting the 1-2 shift dead-nuts at 7000 and ensuring you are in the racing groove when it occurs to reduce wheel spin.
Toward (1), I'd suggest a review:
(1) recheck how you are dealing with the water box to eliminate stray water post-burnout
(2) rear psi readjusted before each pass
(3) proper burnout to the right amount of smoke
(4) speed of the throttle squeeze and
(5) proper shallow stage.
(6) correct alignment in the racing groove
The 330'-1320' incremental will need to be held constant. For every hundredth it's reduced, you get a small cushion under 11.00 or an extra hundredth in the 330' budget.
Good luck and let us know of your progress.
Ranger
11.08 at seven clean passes is an accomplishment in itself. So congrats on that.
Keep in mind it generally takes 30-50 passes to attain your natural lower limit. You're well short of that. But the difference between 11.08 and 10.9x is in the mix of small adjustments identified below.
Your 330'-1320' incremental on that pass was 6.33. That's sufficient to crack under 11.00.
I'd suggest focusing on the first 330'; that's the launch and the 1-2 shift. You will need to
(1) knock the 60' down to about 1.67 or 1.68. And
(2) get the 330' to 4.66 or better. Assuming you achieve (1), that means getting the 1-2 shift dead-nuts at 7000 and ensuring you are in the racing groove when it occurs to reduce wheel spin.
Toward (1), I'd suggest a review:
(1) recheck how you are dealing with the water box to eliminate stray water post-burnout
(2) rear psi readjusted before each pass
(3) proper burnout to the right amount of smoke
(4) speed of the throttle squeeze and
(5) proper shallow stage.
(6) correct alignment in the racing groove
The 330'-1320' incremental will need to be held constant. For every hundredth it's reduced, you get a small cushion under 11.00 or an extra hundredth in the 330' budget.
Good luck and let us know of your progress.
Ranger
Did a nice job making the clutch slip on the launch. That's very difficult to accomplish with this clutch but the only way to get strong 60' times. The alternative is bogging or heavy tire spin, and neither one of those will get you times like this. However, a little bit of tire spin can help the clutch survive the pass.
As you mentioned, the clutch "went away" on several of your passes, so you are right at the edge of what you can achieve with the stock clutch.
Your MPH with an 11.0x could be a little higher. That could be caused by a slight headwind, or not hitting your shift points perfectly. Or it could be the DA.
As Ranger noted, with a 6.33 330-1320, you're putting out enough power to get into the 10's.
Congrats again!
Last edited by dgdoc; 11-19-2007 at 09:19 AM.
11-19-2007, 08:43 AM
#10
Safety Car
Thread Starter
I'd suggest focusing on the first 330'; that's the launch and the 1-2 shift. You will need to
(1) knock the 60' down to about 1.67 or 1.68. And
(2) get the 330' to 4.66 or better. Assuming you achieve (1), that means getting the 1-2 shift dead-nuts at 7000 and ensuring you are in the racing groove when it occurs to reduce wheel spin.
Toward (1), I'd suggest a review:
(1) recheck how you are dealing with the water box to eliminate stray water post-burnout
The only run I had any spin on was the 11.08 run. I was glad to get just a bit of spin.
(2) rear psi readjusted before each pass
I check right before I stage, and make shure both tires are at 15 psi
(3) proper burnout to the right amount of smoke
I do a 2nd gear burnout, and keep it going until I see smoke coming past me in drivers seat
(4) speed of the throttle squeeze and
This is where I need the most attention. I am getting better, though. It is hard to get a quick squeeze without glazing the clutch, so I pay special attention here.
(5) proper shallow stage.
I never paid much attention here, but I think I end up staging pretty deep.
(6) correct alignment in the racing groove
I think I am in the groove as wheel spin is a minimum
(1) knock the 60' down to about 1.67 or 1.68. And
(2) get the 330' to 4.66 or better. Assuming you achieve (1), that means getting the 1-2 shift dead-nuts at 7000 and ensuring you are in the racing groove when it occurs to reduce wheel spin.
Toward (1), I'd suggest a review:
(1) recheck how you are dealing with the water box to eliminate stray water post-burnout
The only run I had any spin on was the 11.08 run. I was glad to get just a bit of spin.
(2) rear psi readjusted before each pass
I check right before I stage, and make shure both tires are at 15 psi
(3) proper burnout to the right amount of smoke
I do a 2nd gear burnout, and keep it going until I see smoke coming past me in drivers seat
(4) speed of the throttle squeeze and
This is where I need the most attention. I am getting better, though. It is hard to get a quick squeeze without glazing the clutch, so I pay special attention here.
(5) proper shallow stage.
I never paid much attention here, but I think I end up staging pretty deep.
(6) correct alignment in the racing groove
I think I am in the groove as wheel spin is a minimum
Tony
11-19-2007, 09:18 AM
#13
Burning Brakes
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11-19-2007, 09:44 AM
#14
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11-19-2007, 09:55 AM
#15
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With the MT Radials in a manual tranny car, I'd recommend adjusting the burnout procedure as follows.
(1) first pass of the day a good smoky burnout.
(2) all subsequent passes that day, spin the tires to just first whiffs of smoke and then back out of the throttle. Adjust the driver-side mirror to monitor the left tire smoke. MT technical calls this protocol "just hazing the tires."
Too much smoke on the 2d and subsequent passes bring oils to the surface of the tread and slightly compromises the 60'.
That is the adjusted procedure that worked for me. I didn't like that tire with the finicky LS7 clutch but liked it on the C5Z with the LS6 clutch.
You might also want to experiment with tire pressure by carefully raising it progressively, seeking improved 60'. With that tire it's hard to get the launch rpm high enough (clutch limitation) to avoid a major bog. The lower the psi is, the greater the bog.
Ranger
(1) first pass of the day a good smoky burnout.
(2) all subsequent passes that day, spin the tires to just first whiffs of smoke and then back out of the throttle. Adjust the driver-side mirror to monitor the left tire smoke. MT technical calls this protocol "just hazing the tires."
Too much smoke on the 2d and subsequent passes bring oils to the surface of the tread and slightly compromises the 60'.
That is the adjusted procedure that worked for me. I didn't like that tire with the finicky LS7 clutch but liked it on the C5Z with the LS6 clutch.
You might also want to experiment with tire pressure by carefully raising it progressively, seeking improved 60'. With that tire it's hard to get the launch rpm high enough (clutch limitation) to avoid a major bog. The lower the psi is, the greater the bog.
Ranger
Last edited by Ranger; 11-19-2007 at 10:26 AM.