3.91 vs. a new torque convertor, which one would you choose? - Pontiac GTO Forum
View Poll Results: 3.91 versus new torque convertor. Which would you choose?
New 3.91 gears. 5 55.56%
About the same. 0 0%
New torque conv. 4 44.44%
Voters: 9. You may not vote on this poll

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post #1 of 11 (permalink) Old 04-16-2006, 04:59 PM Thread Starter
 
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3.91 vs. a new torque convertor, which one would you choose?

2005 A4 with these mods. Lingenfelter CAI, Nitto 275's, Glasspacks, Tune by Chuck at HPE. Best time 13.217. Wanting real bad to get to 12's.

Over the past couple of days I have done some major searches and have read tons of information on the 3.91 gears and new stalls.

From what I have gathered, IMHO, the thing I don't care for in the new TC'S is the lag time till it kicks in, where the 3.91's are good to go from the get go. I have read differing viewpoints about gas mileage.

I think the cost of a new TC, with a trans. cooler is around 1300 installed, but I am not sure about the cost of new 3.91's installed. I think a new 3.91 cost about 435 or so in the box.

I am thinking 1/4 mile timewise, each does about the same, maybe the 3.91 are just a tad better.

Thanks in advance for your help.

Last edited by Old_Goat; 04-16-2006 at 05:03 PM.
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post #2 of 11 (permalink) Old 04-17-2006, 05:44 PM Thread Starter
 
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Note to mods/admin.

Please disable my account, and lock this thread. If I, as a GTO owner, can't better feedback than one f'n vote within 24 hours, then this site is not for me.

I will keep myself at ls1gto.com/forums where GTO owners help other GTO owners. The link below was posted about the same time as this one was, and I already have several replies.

http://www.ls1gto.com/forums/showthread.php?t=74753

Last edited by Old_Goat; 04-17-2006 at 05:59 PM.
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post #3 of 11 (permalink) Old 04-17-2006, 06:13 PM
 
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Quote:
Originally Posted by Old_Goat
Note to mods/admin.

Please disable my account, and lock this thread. If I, as a GTO owner, can't better feedback than one f'n vote within 24 hours, then this site is not for me.

I will keep myself at ls1gto.com/forums where GTO owners help other GTO owners. The link below was posted about the same time as this one was, and I already have several replies.

http://www.ls1gto.com/forums/showthread.php?t=74753
What a ****ing baby. Waaaaaa waaaaaa
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post #4 of 11 (permalink) Old 04-17-2006, 06:22 PM Thread Starter
 
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Originally Posted by 05_GTO
What a ****ing baby. Waaaaaa waaaaaa
I was wondering who would be the first mensa to make a post of this nature. Congrats amigo, you win.

I am trying to get some ideas on my next upgrade. What better place to ask for some ideas or help than a site of this nature? Hell, I even made it a poll so nobody had to make any remarks, unless they wanted to. I made it so simple that even 05_gto could figure it out, which was asking a lot.

Last edited by Old_Goat; 04-17-2006 at 06:44 PM.
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post #5 of 11 (permalink) Old 04-17-2006, 08:01 PM
 
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Originally Posted by Old_Goat
I was wondering who would be the first mensa to make a post of this nature. Congrats amigo, you win.

I am trying to get some ideas on my next upgrade. What better place to ask for some ideas or help than a site of this nature? Hell, I even made it a poll so nobody had to make any remarks, unless they wanted to. I made it so simple that even 05_gto could figure it out, which was asking a lot.
YAAAAAAAWWWWWNNNN!
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post #6 of 11 (permalink) Old 04-17-2006, 09:15 PM
 
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I'd go for the 3.91 as it would make OD a little more useful in normal hi-way driving.
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post #7 of 11 (permalink) Old 04-17-2006, 09:23 PM Thread Starter
 
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Thank you Steve.
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post #8 of 11 (permalink) Old 04-18-2006, 01:46 AM
 
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A T/C will do more at the track. They will both hurt your gas milage. So as I've already suggest on LS1GTO.com go with that.

I got a 3600 T/C and there is no "lag". I hit the gas and I'm off. Yes it doesn't really start to move till around 3400-3600RPM's, though it takes no time for it to get there.

If you're going to make a big fit cuz no one wanted to comment on your thread expect to be told what I typed. I thought you were leaving cuz this site was not for you?
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post #9 of 11 (permalink) Old 04-18-2006, 08:29 AM
 
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Those 3.91's are going to kill your gas mileage with an Auto, but obviously you can afford it. I would go with the 3.91's. Wait a minute shouldn't you be hitting 12's in a stock 05.

Last edited by C5ORGTO; 04-18-2006 at 08:32 AM.
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post #10 of 11 (permalink) Old 04-18-2006, 03:40 PM
 
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Originally Posted by C5ORGTO
Those 3.91's are going to kill your gas mileage with an Auto, but obviously you can afford it. I would go with the 3.91's. Wait a minute shouldn't you be hitting 12's in a stock 05.
Why would you go with the 3.91's? A stall will cut down more on your ET.

3.91's will only make some serious traction problems IMO.
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