im getting the itch to do something to the 2002 ss. it makes 425 rwhp a4 stalled ss3600. its a sunday driver. maybe i could get 20 rwhp with fast 102. car now has 3.23s. if i did a new rear with 410s do you think i would gain more 1/4 mile time with the 410s or the fast.

 

I would up the stall speed further before I would consider 4.10s for an A4.

Get the intake, IMO.

 

In a stalled auto, gears won't do a lot for you. If you already have heads/cam then I would get the fast. It will cost more but will probably give bigger gains.

 

agreed. fast over gears especially in an auto. it'd be a different story if you had 2.73's though.

 

FAST. easy choice.

 

I disagree. With a 3600 stall already in place, the Fast would still be the better choice IMO. As said above, 3500+ stalled 4L60Es don't see big gains from gear swaps. Only reason to change them is if you want that extra tenth or so for a track car, or if you're one of the people that is easily bothered by the "looseness" of your stall with stock gears during street driving.

 

I agree with all of the above the above and your best gain will be seen with better heads at your point IMO opinion .....

 

it has tea 215s. i dont have the best cam for the heads it was specked for a cam only car and i had the heads put on after.

 

Let me speak from actual experience with a sallied auto and 4.10s in a stock 10 bolt. I went from 3.23s to 3.90s then for shots and gigs I swapped in some 4.10s. Now my car already has an SS4000. I pretty much could do zero highway racing with those gears and at the drag strip I couldn't hook at all on the Hoosiers until the last pass when I pulled the fr

 

FAST defiantly