A4 shifting @ track ?
Thread Starter
Burning Brakes
Joined: Nov 2010
Posts: 1,112
Likes: 62
From: Chicago IL
A4 shifting @ track ?
Pardon the newb question. I'm not satified with my search results. What type of results have been achieved when making a 1/4 mile pass in Drive as opposed to manually shifting the trans ?
The only experience I have is with pulling gears (T5) and power glides. If anybody can post 1/4 times in D versus shifting I would greatly appreciate it ..
John
The only experience I have is with pulling gears (T5) and power glides. If anybody can post 1/4 times in D versus shifting I would greatly appreciate it ..
John
Le Mans Master
Joined: Mar 1999
Posts: 6,029
Likes: 85
From: Palm Coast, FL
I've always just left it in drive (3rd) and let it shift by itself. Mine has been tuned and the shift points set from the tune.
I'm not sure about the 1/4 mile time part of the "Q" . . . are you asking if you can go faster by manually shifting? If so, that would depend on how your car is set-up. tuned - upgrades - etc.
I'm not sure about the 1/4 mile time part of the "Q" . . . are you asking if you can go faster by manually shifting? If so, that would depend on how your car is set-up. tuned - upgrades - etc.
Thread Starter
Burning Brakes
Joined: Nov 2010
Posts: 1,112
Likes: 62
From: Chicago IL
Yes, Thats pretty much what I was getting at. Which will result in a faster et. Generally....
Here's my build thread.. http://forums.corvetteforum.com/perf...-420-rwhp.html
Here's my build thread.. http://forums.corvetteforum.com/perf...-420-rwhp.html
Le Mans Master
Joined: Mar 1999
Posts: 6,029
Likes: 85
From: Palm Coast, FL
Nice 
I'm sure it was tuned so . . .
Leave it in drive and forgetaboutit!
i like to change the songs on the iPod while doing a pass so shifting would be a distraction.
Bet you can't wait for some dr's . . . Post some track times when you can
I'm sure it was tuned so . . .Leave it in drive and forgetaboutit!
i like to change the songs on the iPod while doing a pass so shifting would be a distraction.
Bet you can't wait for some dr's . . . Post some track times when you can
Last edited by Rob Petyo; Apr 2, 2011 at 02:18 PM.
Safety Car
Joined: Sep 2007
Posts: 4,005
Likes: 489
From: South Florida
If you talk to the weirdo at Atco with a dark blue LS2 GTO whose racing # is 007....
"IT'S FASTER WHEN I SHIFT IT MANUALLY!. CAN YOU BELIEVE IT, ITS CRAZY, I RAN 12S STOCK WITH THIS THING."
I'm sure most of you who go to Atco know who I'm talking about.
Anyways, I would put it in drive and let it shift its self. You can't shift an automatic faster than the computer can.
"IT'S FASTER WHEN I SHIFT IT MANUALLY!. CAN YOU BELIEVE IT, ITS CRAZY, I RAN 12S STOCK WITH THIS THING."
I'm sure most of you who go to Atco know who I'm talking about.
Anyways, I would put it in drive and let it shift its self. You can't shift an automatic faster than the computer can.
Instructor
Joined: Nov 2010
Posts: 191
Likes: 0
From: Sublette Kansas
Put it in 3rd, then the overrun clutches are applied in all the gears (better for the trans and more holding power under harsh conditions). Unless you have a built tranny, most of the trans builders I know will drill a hole in a certain place in the valve body so that the overrun clutches are applied in D as well. That's my understanding, UNLESS, a C5 tranny has the valve body different than the other cars and trucks with 4L60E's in them.
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Team Owner
Joined: Feb 2001
Posts: 27,246
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From: Short Hills, NJ
Team Owner
Joined: Feb 2001
Posts: 27,246
Likes: 129
From: Short Hills, NJ
Pro
Joined: May 2006
Posts: 723
Likes: 0
From: MOTOWN / Fort Dix NJ MI
If you talk to the weirdo at Atco with a dark blue LS2 GTO whose racing # is 007....
"IT'S FASTER WHEN I SHIFT IT MANUALLY!. CAN YOU BELIEVE IT, ITS CRAZY, I RAN 12S STOCK WITH THIS THING."
I'm sure most of you who go to Atco know who I'm talking about.
Anyways, I would put it in drive and let it shift its self. You can't shift an automatic faster than the computer can.
"IT'S FASTER WHEN I SHIFT IT MANUALLY!. CAN YOU BELIEVE IT, ITS CRAZY, I RAN 12S STOCK WITH THIS THING."
I'm sure most of you who go to Atco know who I'm talking about.
Anyways, I would put it in drive and let it shift its self. You can't shift an automatic faster than the computer can.
Last edited by LightFighter_GXP; Apr 12, 2011 at 10:05 PM.
Pro
Joined: May 2006
Posts: 723
Likes: 0
From: MOTOWN / Fort Dix NJ MI
the M/T DR's work real good..... I start out with 25 Psi at the track and see how they hook...... then work down from there
Melting Slicks
Joined: Aug 2006
Posts: 2,205
Likes: 2
From: port monmouth nj
i would start my mt or hoosiers dr's the tire i use now both 255x50x16's at 18 psi and work my way up 1/2lb after each good pass in tire pressure till i would spin all the time keeping an eye out on temps and track condition. summertime i start at 19psi have been as high as 22psi once without spin on a great track prep and the very next pass spun as the temp dropped 4degrees and the sun starting going below the tree line also got a little to aggressive trying to launch at 2600rpms after having just successfully launched at 2400.
AMP Racing
Joined: Aug 2006
Posts: 10,754
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From: Washington TWP NJ
2023 C5 of the Year Finalist - Modified
2017 C5 of Year Finalist
St. Jude Donor '09-'10-'11-'12
OP - leave a stock trans in drive. It'll work best for you. Even better if your tuner has manipulated it a bit.
As far as Craig (007). I like the guy. Sure, he's a talker, but he's a racer. He's there all the time. Doesn't want drag radials. Doesn't want to brake anything. He's always there.
I talk with him everytime I see him. You just have to lead the conversation so you can step out when you need to.
As far as Craig (007). I like the guy. Sure, he's a talker, but he's a racer. He's there all the time. Doesn't want drag radials. Doesn't want to brake anything. He's always there.
I talk with him everytime I see him. You just have to lead the conversation so you can step out when you need to.
Team Owner
Joined: Feb 2001
Posts: 27,246
Likes: 129
From: Short Hills, NJ
As far as Craig (007). I like the guy. Sure, he's a talker, but he's a racer. He's there all the time. Doesn't want drag radials. Doesn't want to brake anything. He's always there.
I talk with him everytime I see him. You just have to lead the conversation so you can step out when you need to.
I talk with him everytime I see him. You just have to lead the conversation so you can step out when you need to.
He did hold up the lanes a little but at the Late Model LSx versus Late Model Mopar event last month but he's still a good guy.
AMP Racing
Joined: Aug 2006
Posts: 10,754
Likes: 589
From: Washington TWP NJ
2023 C5 of the Year Finalist - Modified
2017 C5 of Year Finalist
St. Jude Donor '09-'10-'11-'12
I've found that typically if it's an event, he won't talk quite as much. I musta missed the holdup at the race you're talking about.
But, if it's test and tune night, watch out. He will try to talk your ear off. That's why you have to control the conversation as best you can.
But, if it's test and tune night, watch out. He will try to talk your ear off. That's why you have to control the conversation as best you can.