What is the stock gear ratio of a 94 z28 a4?

 

either 2:73 or 3:23. Look at the codes inside your glove box or on your door. If you see a GU2 you have 2:73s if you see a GU4 you have 3:23s. Also another way to tell. I am not sure if this is totally accurate though. Cars with first gear on the shifter have 3:23s. Cars that stop at 2nd gear have 2:73s. I can't say this is entirely true. But, my car has 2:73s and no 1st gear and my friends has 3:23 and 1st gear.

 

which gear ration gives you the fastest low end accleration?

 

mine has GU5 writen in the glove box.

 

fastest low end acceleration would be a higher gear. however, it will limit your top end speed.

 

So will a 2:73 or a 3:23 accelarate faster?

 

the higher the #, the higher the gear. 3.23s will be quicker.

 

the higher the number... the LOWER the gear, and it will accelerate faster in all ends.. bottom and top end, its just youre top speed will be reduced, but chances are your car has no where near the power to max out your gearing, nor would you want to!!..

 

Here are the gear RPU codes for the 93-02 cars. I dont believe all codes apply to all years.

GU2 Axle, Rear 2.73 Ratio
GU4 Axle, Rear 3.08 Ratio
GU5 Axle, Rear 3.23 Ratio
GU6 Axle, Rear 3.42 Ratio

 

Go with 3.73's or 4.10's in a A4 Lotta Fun Richmond 4.10's in my A4

 

take your car to 70 MPH in 3rd gear and youw ill know what ration you have by looking at your RPMs. 2,730 = 2.73's 3,230 = 3.23's and so on.