i need help asap! frustrated to the max right now.. just installed a pro4 tekin motor 4600kv with a sxx tc spec. before i had a lrp 4.5 550 ( motor seemed to cog when going slow then full throttle.. switched over to the tekin.. smoother feel and more torque which i like.. but now there's this windy noise (sorry for my spelling) super annoying and it never used to be like that.. i checked my mesh it seemed right.. i just bought a new pinion too last week.. i cant imagine the spur making that sound.. when i get onto the straight at full throttle the car is silent.. only when going slow around corners its super loud!!! any help would be greatly appreciated!

thank you