I have managed a 2.1-60' on bald street tires with completely stock rear end & suspension. My clutch also has several track passes & street races on it along with 70k miles. So I'm sure if I got some tires, suspension stuff, & clutch it would improve a bit. I'm also a M6 & launch at idle or 2k RPM, never any higher.

 

1.55 with 323s

 

1.81 with 3.42 gears and leaving off the rev limiter (6,800) on et streets. Lasted about 10 times.

 

1.7 with 3.23's and 100% stock suspension on nitto 315/35/17's!

 

my buddy just went 1.49 60' on the stock 10 bolt nearly full weight full stock wheels on et streets with 3.23 gears spraying out of the hole on a 4K stall converter. auto cars 1.4 is no problem. mn6 is another story.

 

1.65 on 275/40/17 nitto at 15psi. 3.42s and completely stock rearend including stock cover

 

i cut several 1.7's on the stock rear w/ spec stage 3 clutch, tnt 100 shot, bfg drag radials 17", 6 speed 3.42

1.75,1.76,1.78, i also cut a lot 1.8's

i was sprayin out of the hole

 

I cut 1.58-1.59 60's with a stock motor, stock rear and gears and stock suspended 4000 stall A4

 

my bro is doing 1.7s with slicks burning them up through first gear through a 5-speed in his 89. It's a 10 bolt from an LT1 with a mini spool and a cover along with 3.73 cogs.