car shakes at start?

SON240sx Automotive
1

hey! i installed an sr in my car
almost done now
but i took it for a lil boot
and 2 things
#1 it doesnt go fast (but is building boost, as BOV is working)
#2 when you first go from a stop posistion to a start posistion the rear end shakes like a mofo and then when your driving, its fine

what could this be?

2

Did you do a compression test on the motor before installation? The drive shaft may need to be re-balanced if it shakes like that.

:cool:

3

did you take apart the engine and tranny and accidentally get grease on the clutch. clutch could be slipping