C6 1/4 Mile Performance Challenge
Le Mans Master
Joined: Aug 2004
Posts: 5,259
Likes: 16
From: Monroe Township New Jersey
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16
St. Jude donor in memory of jpee '14
Le Mans Master
Joined: May 2011
Posts: 5,022
Likes: 18
From: Tampa FL (formerly Justinjor)
Tech Contributor
St. Jude Donor '11-'12-'13-'14
Justin,
You will get there. Going fast & faster doesn' t come easy. I have been doing this for more years than I care to talk about and I have only gone 11.202
Only change one thing at a time. My first suggestion would be to get rid of those drag radials.
Don't make any other changes and run ...... or you could take a trip to Joe G's home and copy his setup
You will get there. Going fast & faster doesn' t come easy. I have been doing this for more years than I care to talk about and I have only gone 11.202
Only change one thing at a time. My first suggestion would be to get rid of those drag radials.
Don't make any other changes and run ...... or you could take a trip to Joe G's home and copy his setup
I just want dyno numbers validated if that makes any sense. I put a lot of money and effort doing all the wrenching and I feel the car should pull harder on that top end than it currently does, given the power level it's supposedly making.
My next mod will be the addition of HPTuners, new drag radials (or maybe even ET streets), and GTO spares up front.
I'm excited to be able to scan my runs and dive much deeper into what is really happening as I try and get down the 1320' in under 11 seconds.
Race Director
Joined: Dec 2006
Posts: 12,396
Likes: 2,912
From: Fort Worth, Texas
Not particularly proud of the time, but it is a new PR with my cam-only setup. I feel like it's not that good only picking up 25mph in the back half when I feel like I should easily pick up 30+. With headers and intake i picked up an average of 24.5mph and with the cam, I'm picking up almost the exact same. Could that be the engine pulling timing for some reason?
I'll be getting HPT here in the very near future but until then, I guess I'm left to speculate.
Category: LS3 cam-only
1. Your entire profile completed & read Instructions: Yes
2. A copy of your entire time slip posted to the thread as in post # _____ posted below
3. The complete the details of your pass using this template in your post:
4. Year Corvette 2008
5. Type of Trans MN6
6. Type of Suspension: Z51
7. Stock Performance options (as in optional gears with the automatic, & etc.) 3.42 Gears
8. Tires utilized: Toyo TQ DR 275/40/17
9. Modifications: Halltech intake, OBX headers(catless), cam, underdrive pulley, CNC ported throttle body
10. Dyno numbers if you have them: 494whp/443tq (but I don't believe it makes anywhere near that considering my terrible trap speeds)
11. As much info you may want to add about the run, launch techniques, tire air pressure & etc: Launched it around 5200rpm, tires aired to 21psi hot
12. Typed in the post (as some time slips get deleted & etc after being posted)
___ Name of the Track Bradenton Motorsports Park
___ Date of the pass & weather conditions 11/17/11 67* +700 DA
___ 60'.............1.778
___ 330'...........4.889
___ 660'...........7.414
___ 660’ mph....98.76
___ 1000'.......... 9.673
___ 1320'..........11.378
___ 1320’ mph….123.72
Run #5
I'll be getting HPT here in the very near future but until then, I guess I'm left to speculate.
Category: LS3 cam-only
1. Your entire profile completed & read Instructions: Yes
2. A copy of your entire time slip posted to the thread as in post # _____ posted below
3. The complete the details of your pass using this template in your post:
4. Year Corvette 2008
5. Type of Trans MN6
6. Type of Suspension: Z51
7. Stock Performance options (as in optional gears with the automatic, & etc.) 3.42 Gears
8. Tires utilized: Toyo TQ DR 275/40/17
9. Modifications: Halltech intake, OBX headers(catless), cam, underdrive pulley, CNC ported throttle body
10. Dyno numbers if you have them: 494whp/443tq (but I don't believe it makes anywhere near that considering my terrible trap speeds)
11. As much info you may want to add about the run, launch techniques, tire air pressure & etc: Launched it around 5200rpm, tires aired to 21psi hot
12. Typed in the post (as some time slips get deleted & etc after being posted)
___ Name of the Track Bradenton Motorsports Park
___ Date of the pass & weather conditions 11/17/11 67* +700 DA
___ 60'.............1.778
___ 330'...........4.889
___ 660'...........7.414
___ 660’ mph....98.76
___ 1000'.......... 9.673
___ 1320'..........11.378
___ 1320’ mph….123.72
Run #5
Tech Contributor
Joined: Jul 2002
Posts: 14,950
Likes: 266
From: St. Louis, MO
St. Jude Donor '08
Justin,
You will get there. Going fast & faster doesn' t come easy. I have been doing this for more years than I care to talk about and I have only gone 11.202
Only change one thing at a time. My first suggestion would be to get rid of those drag radials.
Don't make any other changes and run ...... or you could take a trip to Joe G's home and copy his setup
You will get there. Going fast & faster doesn' t come easy. I have been doing this for more years than I care to talk about and I have only gone 11.202
Only change one thing at a time. My first suggestion would be to get rid of those drag radials.
Don't make any other changes and run ...... or you could take a trip to Joe G's home and copy his setup
Tommy you're too kind!Justin your launch on that video was good and your shifting sounds good. I think you need to lower pressure to 17 psi and try that. Other than that get some scans and let's see what's going on.
Don't forget, the folks like me that get 29 mph in the back end have gears and are shifting to 4th (thus an extra shift) in the 1/8 so our 1/8 mph is lower.
I also want to see your shift points on your graph. You need to rap that engine out to 6800 or more if you're comfortable doing so to get the best times. I go to 6900. The really fast Z06 guys go to 7200-7300. If you're shifting at 6500 you're leaving more on the table than you'd think as your shifts get you below peak torque.
Le Mans Master
Joined: May 2011
Posts: 5,022
Likes: 18
From: Tampa FL (formerly Justinjor)
Tech Contributor
St. Jude Donor '11-'12-'13-'14
I don't believe the clutch is slipping and it feels great after each run. If I hotlap it 2 or 3 times, I notice it starts to feel a little more mushy than normal but letting it cooldown for 10-20 minutes takes care of it.
I try to shift around 65-6700 and Jeremy had the limiter set to 6900. I wonder if I could/should have it increased to 7100 so I can shift at 6800 or so without bouncing off the limiter?
When I put in the cam, I put in the Patriot extreme .660 lift springs with titanium retainers and locks so I'd *assume* the drivetrain can take it, right? Or is that too dangerous on stock valves?
Tommy you're too kind!Justin your launch on that video was good and your shifting sounds good. I think you need to lower pressure to 17 psi and try that. Other than that get some scans and let's see what's going on.
Don't forget, the folks like me that get 29 mph in the back end have gears and are shifting to 4th (thus an extra shift) in the 1/8 so our 1/8 mph is lower.
I also want to see your shift points on your graph. You need to rap that engine out to 6800 or more if you're comfortable doing so to get the best times. I go to 6900. The really fast Z06 guys go to 7200-7300. If you're shifting at 6500 you're leaving more on the table than you'd think as your shifts get you below peak torque.
What do you think Joe? See the above response to PRE in regards to the valvetrain--do you think it's safe to run it that high? I got the best parts that fit into my budget to ensure it would stay together for the dragstrip. That is, after all, the only thing I do with the car so I wanted to make sure it would hold together for repeated trips down the 1320.
It also has Manton 11/32" pushrods in addition to the patriot springs.
The dyno shows the motor pulling hard up to 6500+ so what do you think I should shift at?
I'm not opposed to shifting it at a higher rpm, I just want to do what will net the best et/mph.
Le Mans Master
Joined: May 2011
Posts: 5,022
Likes: 18
From: Tampa FL (formerly Justinjor)
Tech Contributor
St. Jude Donor '11-'12-'13-'14
Good enough Joe. I'll have Jeremy up the limiter to 7100 so I can hit 6800-6900 without bouncing off it. Thanks for the info.
Le Mans Master
Joined: Aug 2004
Posts: 5,259
Likes: 16
From: Monroe Township New Jersey
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16
St. Jude donor in memory of jpee '14
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Race Director
Joined: Dec 2006
Posts: 12,396
Likes: 2,912
From: Fort Worth, Texas
Yeah, you have a healthy cam in there that doesn't fall off past peak. I recommend shifting atleast 500rpm past peak as you'll make better average power thru the gears which what gets you down the track fastest. Heck I shift my little 218* cam with single springs at 7k on the stock bottom end with 114k, so you'll be fine.
Tech Contributor
Joined: Jul 2002
Posts: 14,950
Likes: 266
From: St. Louis, MO
St. Jude Donor '08
I agree Tommy. If someone learns from my mistakes, it wasn't just money down the toilet!!
Le Mans Master
Joined: May 2011
Posts: 5,022
Likes: 18
From: Tampa FL (formerly Justinjor)
Tech Contributor
St. Jude Donor '11-'12-'13-'14
Yeah, you have a healthy cam in there that doesn't fall off past peak. I recommend shifting atleast 500rpm past peak as you'll make better average power thru the gears which what gets you down the track fastest. Heck I shift my little 218* cam with single springs at 7k on the stock bottom end with 114k, so you'll be fine.
I wish I had my HPT already so I could up the limiter myself.
Safety Car
Joined: Apr 2010
Posts: 4,231
Likes: 451
From: Maryland
Update
Please update my entry in the= External Engine Modifications Grand Sport (Bolt-ons) section.
There are "no" changes to the car from the last entry. The improvement is most likely due to some better air. I weigh 260 lbs. and the fuel tank was between 5/8 and 3/4 full.
4. Year Corvette= 2010 Grand Sport
5. Type of trans= A6 with stock converter
6. Type of suspension= Stock
7. Stock Performance options= None
8. Tires utilized= Nitto 345/30/19's rear, stock front, all on stock rims.
9. Modifications if any= CAI (OEM Home Made), 1 3/4" Headers with Stock (430 HP) Mufflers, Predator 93 tune.
10. Dyno numbers if you have them= None
11. As much info you may want to add about the run, launch techniques, tire air pressure & etc.
1200 rpm launch in Drive Mode after burnout with the traction control= Off, front pressure= 28 psi, rear pressure= 26 psi
12. Type in post (as some time slips get deleted & etc. after posted).
_Name of track: Cecil County Dragway
_Date of the pass & weather conditions: 11/18/11, approx. 38 degrees.
_60'............ 1.839
_330'.......... 5.026
_1/8........... 7.606
_1/8 mph.... 95.62
_1000'........ 9.809
_1/4.......... 11.662
_1/4 mph.... 121.63
There are "no" changes to the car from the last entry. The improvement is most likely due to some better air. I weigh 260 lbs. and the fuel tank was between 5/8 and 3/4 full.
4. Year Corvette= 2010 Grand Sport
5. Type of trans= A6 with stock converter
6. Type of suspension= Stock
7. Stock Performance options= None
8. Tires utilized= Nitto 345/30/19's rear, stock front, all on stock rims.
9. Modifications if any= CAI (OEM Home Made), 1 3/4" Headers with Stock (430 HP) Mufflers, Predator 93 tune.
10. Dyno numbers if you have them= None
11. As much info you may want to add about the run, launch techniques, tire air pressure & etc.
1200 rpm launch in Drive Mode after burnout with the traction control= Off, front pressure= 28 psi, rear pressure= 26 psi
12. Type in post (as some time slips get deleted & etc. after posted).
_Name of track: Cecil County Dragway
_Date of the pass & weather conditions: 11/18/11, approx. 38 degrees.
_60'............ 1.839
_330'.......... 5.026
_1/8........... 7.606
_1/8 mph.... 95.62
_1000'........ 9.809
_1/4.......... 11.662
_1/4 mph.... 121.63
Last edited by C7/Z06 Man; Dec 1, 2011 at 01:24 PM.
Safety Car
Joined: Apr 2010
Posts: 4,231
Likes: 451
From: Maryland
Thanks, maybe a diet & less fuel will pick it up some. I know this is going to be hard to believe but the "no slip" nittos maybe because they are taller hurt my 60 ft. times by a tenth when I first put them on. So I'm going to try the stockers again in the next week or so.
& less fuel will pick it up some. I know this is going to be hard to believe but the "no slip" nittos maybe because they are taller hurt my 60 ft. times by a tenth when I first put them on. So I'm going to try the stockers again in the next week or so.
Burning Brakes
Joined: Nov 2009
Posts: 1,157
Likes: 1
From: Oxford Pa
so close yet so far from a 11.3xx run
Category:LS2 bolt on
4. Year Corvette 2007
5. Type of Trans M6
6. Type of Suspension Base
7. Stock Performance options Base
8. Tires utilized hoosier 315 drs@19.5psi cold
9. Modifications if any Vararam CAI,LTH no cats,
Ported Fast 102,C6Z Diff,McLeod RXT,bad driver,C5Z axles
10. Dyno numbers 405whp 407wtq
11. As much info you may want to add about the run, launch techniques, 1/4 tank of gas,nice easy launch @5800-6000 rpm , DA around -500 to 0(DA was confirmed onsite at 10am to be -450) This was best of 14 passes. One other in the 11.4xxs 4-in the 11.5xxs 3-11.6xxs rest were 11.7xx+ or aborted runs.
Cecil County
11-19-11
1.662 - 60'
4.765 - 330'
7.344 - 660'
95.95 - 660’ mph
9.543 - 1000'
11.412- 1320'
119.27- 1320’ mph
4. Year Corvette 2007
5. Type of Trans M6
6. Type of Suspension Base
7. Stock Performance options Base
8. Tires utilized hoosier 315 drs@19.5psi cold
9. Modifications if any Vararam CAI,LTH no cats,
Ported Fast 102,C6Z Diff,McLeod RXT,bad driver,C5Z axles
10. Dyno numbers 405whp 407wtq
11. As much info you may want to add about the run, launch techniques, 1/4 tank of gas,nice easy launch @5800-6000 rpm , DA around -500 to 0(DA was confirmed onsite at 10am to be -450) This was best of 14 passes. One other in the 11.4xxs 4-in the 11.5xxs 3-11.6xxs rest were 11.7xx+ or aborted runs.
Cecil County
11-19-11
1.662 - 60'
4.765 - 330'
7.344 - 660'
95.95 - 660’ mph
9.543 - 1000'
11.412- 1320'
119.27- 1320’ mph
Last edited by Devilish34; Nov 21, 2011 at 09:59 PM.
Racer
Joined: Apr 2009
Posts: 403
Likes: 12
Just wondering, am I the fastest stock bottom end LS3 M6 car on here?
http://www.youtube.com/watch?v=bA-39OME0pg
1.53 60 ft
6.44 @ 110 1/8
9.98 @ 139 1/4
http://www.youtube.com/watch?v=rhoZOFmHLz8
Category :
1. Your entire profile completed & read Instructions: yes
2. A copy of your entire time slip posted to the thread as in post # 5537
3. The complete the details of your pass using this template in your post:
4. Year Corvette 2008
5. Type of Trans manual tr6060 6 speed
6. Type of Suspension stock
7. Stock Performance options (as in optional gears with the automatic, & etc.) base corvette-none
8. Tires utilized 26/11.5/16 MT Et street bias ply
9. Modifications if any LG g6x3 cam, Kooks LTs, SLP exh, Callaway CAI, NX 175 Kit
10. Dyno numbers if you have them 548 (dynodynamics)
11. As much info you may want to add about the run, launch techniques, tire air pressure & etc- Alot of RPMs and nitrous LOL
12. Typed in the post (as some time slips get deleted & etc after being posted)
___ Name of the Track Mt Park Dragway
___ Date of the pass & weather conditions 10-23-11 DA was around 400
___ 60'............. 1.53
___ 330'........... 4.21
___ 660'........... 6.44
___ 660’ mph.... 110.3
___ 1000'.........
___ 1320'......... 9.984
___ 1320’ mph… 139.16
Copy of Time Slip Below
http://www.youtube.com/watch?v=bA-39OME0pg
1.53 60 ft
6.44 @ 110 1/8
9.98 @ 139 1/4
http://www.youtube.com/watch?v=rhoZOFmHLz8
Category :
1. Your entire profile completed & read Instructions: yes
2. A copy of your entire time slip posted to the thread as in post # 5537
3. The complete the details of your pass using this template in your post:
4. Year Corvette 2008
5. Type of Trans manual tr6060 6 speed
6. Type of Suspension stock
7. Stock Performance options (as in optional gears with the automatic, & etc.) base corvette-none
8. Tires utilized 26/11.5/16 MT Et street bias ply
9. Modifications if any LG g6x3 cam, Kooks LTs, SLP exh, Callaway CAI, NX 175 Kit
10. Dyno numbers if you have them 548 (dynodynamics)
11. As much info you may want to add about the run, launch techniques, tire air pressure & etc- Alot of RPMs and nitrous LOL
12. Typed in the post (as some time slips get deleted & etc after being posted)
___ Name of the Track Mt Park Dragway
___ Date of the pass & weather conditions 10-23-11 DA was around 400
___ 60'............. 1.53
___ 330'........... 4.21
___ 660'........... 6.44
___ 660’ mph.... 110.3
___ 1000'.........
___ 1320'......... 9.984
___ 1320’ mph… 139.16
Copy of Time Slip Below
Last edited by darkbluez; Nov 20, 2011 at 12:26 PM.
Team Owner
Joined: Feb 2001
Posts: 27,254
Likes: 136
From: Short Hills, NJ
There are of course automatic LS3s and even stock bottom end LS2s (and even LS1s/LS6s) that have gone quicker but single digits in a stock bottom end IRS Corvette are impressive no matter how ya slice it.
