Hi guys. I feel like I've tried everything. I searched and searched but I didnt find a situation exactly like mine so I decided to post.
My civic will vibrate under acceleration even in second gear as low as 30mph. If i drive with a light foot, the vibration will not be felt until 70-80mph
I can be going 75mph (the worst vibration speed) and lift my foot off the gas so that I'm barely using the engine and the vibration is almost nothing. Put the pedal to the floor and the vibration hits hard. Take my foot off the pedal, vibration
The vibration does not occur under braking.
Ek Civic Coupe
H22a4 swap
I recently bought new buddy club p1's
Brand new 205/40/16 Federal Tires
Brand new MOOG inner and outer tie rods
Fresh alignment
Brand New Koni/GC
Brand new Insane shafts axles

Yes, it had this vibration before I installed these parts

 

Get your tires balance.

 

Tires are brand new.... Balanced

Also, this is why I included the fact that the vibration happens at about 30mph too. Wouldnt be very typical for an unbalanced wheel (s) to produce a vibration at that low of a speed.

 

I had 4 new tires balanced and mounted by a local reputable shop. It vibrates at low speed and high speed. Had to take it somewhere else to get rebalance. No more vibrations.

 

You must know something that we don' t know about these vibrations that are occurring. Since you bought all these NEW parts, or "NEW TO ME" parts. I dunno which is which.

I suggest you look everything over. Vibrations have to occur somewhere that you aren't telling us and if you decide to respond with EVERYWHERE than it doesn't help and leads us back to your buddy clubs being piece of **** rims. Also a suggestion, GET ROAD FORCE BALANCING.