I found it!
I tried some different configs with the maxspeed command but it didnt seem to do anything.
I found this line in the ITA Tornado pbo, "sideAirFriction".
They do use it with their high drag bombs, but they dont have it set very high.
I tweaked it up pretty high and it works absolutely perfect for what I was after.
Just have to be carefull you arent flying too eratically (like I do) or you can hit the bombs as they fly backwards! ;D
No need for a script.
Now I just have to finish my plane!