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A4 best gears
Thread Starter
On The Tree
Joined: Jul 2004
Posts: 114
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From: Lockport,IL
A4 best gears Well i did some searching and also read up some info on gear swapping. According to the speed ratio chart my 2 best bets formy a4 will be either a 3.42 or 3.73 gear set from strange. Im trying to decide which one will give me the performance im looking for but also not hurt my highway mpg that much. Im pretty set on the 3.42 gear set. It will be a huge jump from my 2.73 and will also go well with the fuddle 3200 im gonna be ordering nest week. Just wanted to get some opinions on whether or not i should just go 3.73 or stay 3.42. Will the difference be enough that i wish i would have done it later. Future mods look to be the converter, longtubes, and possible a 100 shot(but not for a long while on that one).
This is perspective from an LT1 2.73 to 3.73 swap, but it made a world of a difference. A friend of mine has 3.42's on his LS1 and is buying 3.73's tomorrow, it's a great ratio. Gas mileage depends on your foot too, but it will go down a little.
Thread Starter
On The Tree
Joined: Jul 2004
Posts: 114
Likes: 0
From: Lockport,IL
Ok guys im pretty sure im gonan go with the 3.73s. What are some disadvantages of having 3.73s over he 2.73s besdies the hit in fuel economy? Will i be at a disadvantage from higher roll speeds? Thanks
Originally Posted by BlackHawk T/A
Lower top speed, lower mileage, less traction.
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I had 3.42's and changed them out. I went to 3.90's as my 12 bolt gave me that option. I will say this though. I picked up only .05 and less than 1 MPH at the 1/8th mile track I always run at going from the 3.42's to the 3.90's. I'm considered a stock internal car now with my mods but I was much closer to stock when I swapped gears out. My converter is very forgiving of what gear is in the rear.
Originally Posted by Roarin_8
See how you like the converter at the track before you change your gears.
