Do the shallow A4 gears hurt you on the quarter mile??
#1
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This is probably a stupid question but I just want to clear it up... why do the A4's come with such shallow gears (2.73's, 3.23's) compared to the M6 cars (3.42's)??? I know the M6 probably has a broader gear range but is that it?? Do A4's perform worse on the quarter mile because of the shallower gears?
I am building a project with a 98 Z28 LS1 and A4 trans and currently have a Dana 44 with 2.88's in the car... was considering a set of 3.31's but don't want to gearbound the car. I want a strong (not crazy) quarter mile but I also want it to feel good on the highway.
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I am building a project with a 98 Z28 LS1 and A4 trans and currently have a Dana 44 with 2.88's in the car... was considering a set of 3.31's but don't want to gearbound the car. I want a strong (not crazy) quarter mile but I also want it to feel good on the highway.
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The main reason is fuel economy I'm sure, but the 4L60E's first gear is numerically higher than first gear in the M6, so its a trade off. M6s are just quicker up top because they dont suffer as much drivetrain loss as autos do.
#3
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So the shallower rear end gears balance out the deeper first gear in the 4L60E A4 trans?
Originally Posted by josh99ta
The main reason is fuel economy I'm sure, but the 4L60E's first gear is numerically higher than first gear in the M6, so its a trade off. M6s are just quicker up top because they dont suffer as much drivetrain loss as autos do.
#4
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What kind of changes do you see moving your ratio up? I know you obviously have more torque but does it feel faster even on the highway or does it feel gearbound? How m uch does changing the ratio effect your quarter mile times?
Originally Posted by FastKat
This is probably a stupid question but I just want to clear it up... why do the A4's come with such shallow gears (2.73's, 3.23's) compared to the M6 cars (3.42's)??? I know the M6 probably has a broader gear range but is that it?? Do A4's perform worse on the quarter mile because of the shallower gears?
I am building a project with a 98 Z28 LS1 and A4 trans and currently have a Dana 44 with 2.88's in the car... was considering a set of 3.31's but don't want to gearbound the car. I want a strong (not crazy) quarter mile but I also want it to feel good on the highway.
![Icon Confused](https://ls1tech.com/forums/images/smilies2/icon_confused.gif)
I am building a project with a 98 Z28 LS1 and A4 trans and currently have a Dana 44 with 2.88's in the car... was considering a set of 3.31's but don't want to gearbound the car. I want a strong (not crazy) quarter mile but I also want it to feel good on the highway.
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Originally Posted by FastKat
This is probably a stupid question but I just want to clear it up... why do the A4's come with such shallow gears (2.73's, 3.23's) compared to the M6 cars (3.42's)??? I know the M6 probably has a broader gear range but is that it?? Do A4's perform worse on the quarter mile because of the shallower gears?
I am building a project with a 98 Z28 LS1 and A4 trans and currently have a Dana 44 with 2.88's in the car... was considering a set of 3.31's but don't want to gearbound the car. I want a strong (not crazy) quarter mile but I also want it to feel good on the highway.
![Icon Confused](https://ls1tech.com/forums/images/smilies2/icon_confused.gif)
I am building a project with a 98 Z28 LS1 and A4 trans and currently have a Dana 44 with 2.88's in the car... was considering a set of 3.31's but don't want to gearbound the car. I want a strong (not crazy) quarter mile but I also want it to feel good on the highway.
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Originally Posted by scottyballs
A 4000+ stall will put you with a m6 if not own them
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Originally Posted by Pewter T/A
With 3.42 gears? How will a stall that big feel on the street under normal driving? Will it feel like its revving up high/sluggish all the time on take off?
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Originally Posted by JEB99TA
At 80 mph I'm at 2,700 rpm and the car cruises nicely. 28+ miles per gallon on long trips. Pulls hills with easy. ****-for-mileage around town, though. It's probably more because I drive it so hard, though.