for those following my many recent post i have upgraded my p400 to a v8. i have been running K02 on the p400 and ended up swapping the wheels to the V8

for some strange reason i am getting much more noise on the v8 from the tires. much more noticeable than before. I couldn’t imagine the v8 is any less insulated

i believe the tires are non directional but i did notice on the back of the wheel my shop had labeled each. unfortunately they didn’t label all of them and i couldn’t follow the pattern

i have around 3-5 psi differences in the tires. thinking maybe the lower psi or higher is causing the extra noise

anybody have any ideas on what’s going on

 

I run KO2's on my Jeep Wrangler and just had the car in for a service recently. It's been a while since I had a tire rotation done, so I asked they do this during the service. When I picked up the car the tire noise had increased significantly, even more noticeable with speeds over 60mph. After about a month and maybe 500+ miles the noise subsided and I don't notice it any more. If I recall correctly, they did diagonally rotate the front pair to the rears (reverse direction). Hope that helps with one possible explanation.

 

have a feeling that’s what happened but i don’t quite understand why that would make a difference if they are not directional

 

Regardless, I think there will always be some directional wear. How many miles/kms on your P400 before you moved them to the V8? If greater than 4-5K I think this is probably the answer.

 

had around 8k miles on the K02. but it makes sense i prob randomly moved the one or both rears to the front and assume the rear has less wear

thanks. makes sense now