quarter mile time to expect?
Thread Starter
Instructor
Joined: Jan 2011
Posts: 114
Likes: 0
From: tucson az
i really would take you up on the offer but i couldn't leave work on such a short short notice since i am the only guy lol. I would have to plan at least two weeks ahead. I very much appreciate the offer and would like to go back to Cali since i was born there. Azusa was my city though. I will for sure get the converter soon since it makes that much of a difference. what stall should i get?
Melting Slicks
Joined: Jul 2007
Posts: 3,097
Likes: 5
From: Brentwood World's first A6 in the 9's (including N/A, blower, turbo and nitrous cars) 9.950@139.267 CA
i really would take you up on the offer but i couldn't leave work on such a short short notice since i am the only guy lol. I would have to plan at least two weeks ahead. I very much appreciate the offer and would like to go back to Cali since i was born there. Azusa was my city though. I will for sure get the converter soon since it makes that much of a difference. what stall should i get?
Race Director
Joined: Sep 2007
Posts: 16,557
Likes: 2,108
From: Peoria/Phoenix AZ
C6 of Year Finalist (performance mods) 2019
That can go one of a few different ways. If you get wheelspin with an A6 when you launch, depending on how bad it is the car will either shortshift on the 1-2 or bounce off the rev-limiter. My car generally short shifts but when I still had my LS2 it would hit the rev-limiter. What exactly dictates whether one or the happens I don't really know.
Tom will probably chime in here, but from what I remember he got pretty bad wheel spin, let up to try and get the car back under control and then erroneously put his foot back on the gas causing it to downshift and subquently over-rev.
The general rule of thumb with the A6 should be that if you have to take your foot off the gas completely to control the wheelspin then I would suggest just aborting the run. If however you only need to back off a bit but never remove your foot completely then you're usually okay to stay in it for the remainder of the run.
Tom will probably chime in here, but from what I remember he got pretty bad wheel spin, let up to try and get the car back under control and then erroneously put his foot back on the gas causing it to downshift and subquently over-rev.
The general rule of thumb with the A6 should be that if you have to take your foot off the gas completely to control the wheelspin then I would suggest just aborting the run. If however you only need to back off a bit but never remove your foot completely then you're usually okay to stay in it for the remainder of the run.
I've probably aborted 10% of my runs due to excessive spin and should have aborted another 10% because of some spin. According to my logs, about half of the passes have detectable wheelspin that is not always noticed by me in the car.
Thread Starter
Instructor
Joined: Jan 2011
Posts: 114
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From: tucson az
Ouch! You may be in for an even bigger letdown than what I originally thought and the longer you wait the worse it's gonna get because the cooler season is pretty much already behind us.
To give you an idea of just how much your car may actually slow down, a 12.5@115MPH run made in an 1800ft DA would equate to 13.145@109MPH in a 5500ft DA or a 13.201 if it hits 5800ft (both of which occur pretty easily at SIR).
As such, not only may you end up running slower than before but you might even have trouble even into the 12's depending on bad the DA ends up being when you finally do make it back.
To give you an idea of just how much your car may actually slow down, a 12.5@115MPH run made in an 1800ft DA would equate to 13.145@109MPH in a 5500ft DA or a 13.201 if it hits 5800ft (both of which occur pretty easily at SIR).
As such, not only may you end up running slower than before but you might even have trouble even into the 12's depending on bad the DA ends up being when you finally do make it back.
I assume that you didn't add Z06/Grand Sport brakes to the car as well?
If not, then you might not have added as much weight as was originally thought...though even just 20 pounds more on wheels and tires (I still think you might've added on a little more than that) can effect performance.
If not, then you might not have added as much weight as was originally thought...though even just 20 pounds more on wheels and tires (I still think you might've added on a little more than that) can effect performance.
Tech Contributor
Joined: Jul 2002
Posts: 14,950
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From: St. Louis, MO
St. Jude Donor '08
Subfloor said it best...but you might want to throw up a new thread asking what stall to use with your setup.
I know my friend Theofel uses a 3600 yank on his a6 daily driver but I think he's got 3:15's.
Hoxxoh I think also has a 3600 one for his around the country driver, 70k miles last I knew!
I know my friend Theofel uses a 3600 yank on his a6 daily driver but I think he's got 3:15's.
Hoxxoh I think also has a 3600 one for his around the country driver, 70k miles last I knew!
Melting Slicks
Joined: Jul 2007
Posts: 3,097
Likes: 5
From: Brentwood World's first A6 in the 9's (including N/A, blower, turbo and nitrous cars) 9.950@139.267 CA
With 2.56 gears a 3600 will feel a little loose on the street, in that you'll need to give it a little more gas than usual to get it moving. You will however probably get a full tenth more knocked off your ET than with a 3200 so it's really a personal choice. I have 3.42 gears so my 3600 is a perfect match but even if I had to go back to 2.56 gears again I would probably still stick with that same converter.
Race Director
Joined: Mar 2007
Posts: 11,331
Likes: 18
From: Missouri City Texas
I have the 2.56 gears and Yank 3200 and feel it's weak sauce....wish I would've gone with the 3600 minimum or had a custom one built down here at Circle D (which I still might do).
Race Director
Joined: Sep 2007
Posts: 16,557
Likes: 2,108
From: Peoria/Phoenix AZ
C6 of Year Finalist (performance mods) 2019
Subfloor said it best...but you might want to throw up a new thread asking what stall to use with your setup.
I know my friend Theofel uses a 3600 yank on his a6 daily driver but I think he's got 3:15's.
Hoxxoh I think also has a 3600 one for his around the country driver, 70k miles last I knew!
I know my friend Theofel uses a 3600 yank on his a6 daily driver but I think he's got 3:15's.
Hoxxoh I think also has a 3600 one for his around the country driver, 70k miles last I knew!
With 2.56 gears a 3600 will feel a little loose on the street, in that you'll need to give it a little more gas than usual to get it moving. You will however probably get a full tenth more knocked off your ET than with a 3200 so it's really a personal choice. I have 3.42 gears so my 3600 is a perfect match but even if I had to go back to 2.56 gears again I would probably still stick with that same converter.
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Thread Starter
Instructor
Joined: Jan 2011
Posts: 114
Likes: 0
From: tucson az
by the way the car "will not" do burnouts at all now with the bigger rims and nitto nt05 tires and it feels like new setup of rims/tires killed my car launches now. from a dead stop even with all my power my car barely goes forward on launch now as before 1st gear was uncontrollable and would spin like crazy and go sideways if i hit it from a stop or a roll. its also barley spins on the roll when going full pedal! yikes i didn't know those tires and rims would slow it down that much!! it seriously feel half a second or more slower now on my starts now with bigger tires
Race Director
Joined: Mar 2007
Posts: 11,331
Likes: 18
From: Missouri City Texas
by the way the car "will not" do burnouts at all now with the bigger rims and nitto nt05 tires and it feels like new setup of rims/tires killed my car launches now. from a dead stop even with all my power my car barely goes forward on launch now as before 1st gear was uncontrollable and would spin like crazy and go sideways if i hit it from a stop or a roll. its also barley spins on the roll when going full pedal! yikes i didn't know those tires and rims would slow it down that much!!
Edit- I saw you were in Arizono, so the mph is probably fine.
Anyway, your issue on the launch is because you're running a bigger aftermarket cam with the stock converter and it takes longer to get into your powerband. Having 335 NT05s on very heavy wheels is just compounding the problem.
I don't believe you when you say it can't do a burnout though. Roll the rears through some water and I GUARANTEE you will smoke them up as long as you want, but you probably don't need to do a burnout at all since you are rocking the stock converter.
Your first post said your previous best 60' was 2.1 and now you went 2.0, so your launch improved.
Last edited by FloydSummerOf68; May 20, 2011 at 09:40 PM.
Thread Starter
Instructor
Joined: Jan 2011
Posts: 114
Likes: 0
From: tucson az
the water box is the only way it will do a burn it out, It seriously wont any other way!
the DA that day was 5115, da calculator said
Stock and Mildly Modified
Naturally Aspirated Engines
11.584 @ 127.581 MPH
Extensively Modified Naturally Aspirated Engines
11.77 @ 125.448 MPH
Extensively Modified Supercharged and Turbocharged Engines
12.038 @ 122.703 MPH
But REALLY my car could pick up that much more on stock converter in perfect da and track prep?
the DA that day was 5115, da calculator said
Stock and Mildly Modified
Naturally Aspirated Engines
11.584 @ 127.581 MPH
Extensively Modified Naturally Aspirated Engines
11.77 @ 125.448 MPH
Extensively Modified Supercharged and Turbocharged Engines
12.038 @ 122.703 MPH
But REALLY my car could pick up that much more on stock converter in perfect da and track prep?
Race Director
Joined: Sep 2007
Posts: 16,557
Likes: 2,108
From: Peoria/Phoenix AZ
C6 of Year Finalist (performance mods) 2019
I have a 3200 here in Phoenix for a real good price, that'll cut at the very least .2 and probably closer to .4 off your time. It'll still drive real close to the stock feel, except you won't have the idle surge. 
AirBusPilot is dead on. With your cam, the stock converter, and those larger tires, you're killing the launch.
You could pick it up on your way to Sacramento. I'll even buy you dinner at a easy off/on by IS 10. Take Friday off and leave next Thursday after work, arrive at Subfloor's place mid-day Friday to do the install.
Finish up Saturday morning and hit the track. Drive back on Sunday with an 11.5 or better timeslip and catch up on sleep Monday. It's only 850-900 miles and takes 12 hours. Piece of cake for a young guy like you.
AirBusPilot is dead on. With your cam, the stock converter, and those larger tires, you're killing the launch.
You could pick it up on your way to Sacramento. I'll even buy you dinner at a easy off/on by IS 10. Take Friday off and leave next Thursday after work, arrive at Subfloor's place mid-day Friday to do the install.
Finish up Saturday morning and hit the track. Drive back on Sunday with an 11.5 or better timeslip and catch up on sleep Monday. It's only 850-900 miles and takes 12 hours. Piece of cake for a young guy like you.
Last edited by HOXXOH; May 22, 2011 at 12:29 AM.
Instructor
Joined: Mar 2011
Posts: 154
Likes: 0
From: Garner NC
Seems like a Yank 3600 and 3.42 Z06 axle is the way with an A6 2.56. That is what I have. I bet a Yank 3600/3.42 would feel like a different car compared to my stock 2.56. 
I would love to drive one. 
I would love to drive one.
Instructor
Joined: Mar 2010
Posts: 180
Likes: 1
From: Greenville NC
What do you think my new time,speed,and 60ft should be? My car ran a best of 12.5@114.5 (2.10 60ft) and power was at that time 372hp and 358tq. Car is a 06 LS2 6 speed auto with z51 and had at the time intake,ported tb,stage 2 ported stock intake,b&b header+exhaust+x pipe,hp tuners tune.
Now i added a full zr1 body kit and added replica z06 rims and new 285x18 and 335x19 nitto NT05 tires for the exterior. Engine mods added were fast 102 ported intake,62lb fast injectors (spraying next year when i do 408 stroker),double roller chain,ported oil pump,trickflow 225cc cnc ported heads (not milled), cometic .40 head gaskets,edelbrock water pump,k tech pulley,comps cam .588/.586,222/224 112 lobe,arp bolts everywhere possible.
So with all the new goodies what should my time,speed, and 60ft should range between? my new dyno numbers are 442hp and 422tq on a dynojet in Tucson Az bad weather
Now i added a full zr1 body kit and added replica z06 rims and new 285x18 and 335x19 nitto NT05 tires for the exterior. Engine mods added were fast 102 ported intake,62lb fast injectors (spraying next year when i do 408 stroker),double roller chain,ported oil pump,trickflow 225cc cnc ported heads (not milled), cometic .40 head gaskets,edelbrock water pump,k tech pulley,comps cam .588/.586,222/224 112 lobe,arp bolts everywhere possible.
So with all the new goodies what should my time,speed, and 60ft should range between? my new dyno numbers are 442hp and 422tq on a dynojet in Tucson Az bad weather
I can't image your time not improving simply by adding the extra grip.... I see several comments that you may LOSE time because of the extra tire wheel weight
, but the bottom line is if you WERE running 285's in the back, they will just NOT hook up like they need to to be able to put even a STOCK level hp to the pavement. the extra 3 inches of fiberglass should hardly be anymore added weight than a thanksgiving dinner....... nothing a good ole, #2 bathroom visit can't fix!!!!