What would be a better gear to have with 150 shot? 273 or 373? Car is an A4 and is mainly stock.....Thanks in advance......I want the cars setup to be for the 1/4 mile

 

I had 3.73s and was running out of gear at around 120mph. (bolt-ons and 100 shot)

When I installed a Moser 9", I changed to 3.50 gears.

Using a 26" tall tire...

So, my suggestion is 3.42s in a 10 bolt, or 3.50/.55s if you got an aftermarket rearend.
Or get bigger tires.

But on a 125 shot and 3.50 gears, it still gets out of the hole quick enough...mid 1.4 60fts.

 

i use to be a M6 but i ran 4.10 in my moser 9" with 27" tires and hit the 1/4 at 132 mph at 6400 in 4th gear. remember 4th gear in M6 or A4 is still 1 to 1. what size tire are you running, it makes a big difference. I use to run 4.56 gears on 27" tires all motor and ran out at 117 mph in 4th.

 

No, that is not true.

3rd gear is 1:1 in autos.

That's why we don't shift into overdrive when racing (unless the trans is built for that, maybe?)

 

my bad was thinking turbo 400/ 350

back to the original guy what stall r u running

 

I will be running a ss3600 yank

 

Same stall I'm running.

Refer to my original post. It depends on if you want to run a 26 or 28" tall tire. Also, where you will be shifting at....my motor is stock so I shift at 6100.

 

Given just those two choices, the 2.73:1 ratio would be much better when using the N2O.