How many tenths should a et street lower my et.
My truck is a 02' lightning mods are programmer, cold air, boost bypass.
It also has 22" intros with 285/35/22 nitto 555's, the truck has a 3/4 drop
Just wondering how much help et streets would give me.

My truck currently runs:

1st pass:
60ft-2.0167
1/8 et-8.71
1/8 mph-80.09
1/4 et-13.50
1/4 et-99.21

2nd pass:
60 ft-1.9956
1/8 et-8.68
1/8 mph-81.65
1/4 et-13.48
1/4 mph-99.25

 

depends if your spinning or not, and how much shorter the slick is compared to your stock tire, but going to small may hurt you some times.

 

If you are spinning of fthe line they will make a big difference. For every 1/10 you take of the 60' time, you will gain .15-.2 seconds off your 1/4 time.

 

I'am not spinning a whole lot off the line just a little when the truck shocks the tires, and the 285/35/22's are right a 28 inches' I think.