speed bumps

I live on 137th Ave between 44 st and 48 st. Invariably EVERY SINGLE day there are loud hot rod cars ripping down the road going as fast as they can. This is a residential neighborhood and we never had this problem before the "turn-abouts" were put in. There are children on our street and people walking their dogs and not a street race-way road. These cars are usually driven by younger men and more often than not going north on 137th Ave. Can't we PLEASE have some speed bumps in the road like they have on 48 th street, east of 137th Ave.? Thank you...you can raise my taxes to help pay for this.