Whilst I was replacing my timing belt and all the other bits that go with it, I thought I'd try out the Powerflex engine mount inserts. My main reason for buying these was because under hard acceleration my REVO intake would scrape on a bracket that was fixed into the bulkhead behind it. Between the intake pipe and the bracket was probably about a 20-30mm or so gap, so this showed how far the engine rocked back and forth when putting pedal to the metal, it was also a chance to see what the Powerflex products were like to use.
I ordered the two main engine mount inserts (LH and RH) and the two that go in the torque arm/dog bone mount between the transmission housing and the chassis.
As you'd expect these inserts are fairly difficult to push into the voids within the mounts/brackets, no special tools were needed though, just lots of pushing and the supplied grease!
RH engine mount
LH transmission mount
Dog bone/transmission to chassis mount, small bush and
lower engine mount insert (Purple parts)
My initial thoughts were, after I had finished my timing belt renewal and switched the engine on, was "Oh **** I haven't bolted/fixed/tighten/timed something properly" the NVH (Noise vibration and harshness) was definitely increased! The cabin noise is quite a significant increase over the normal bushes, as to be expected and warned by Powerflex anyway! Probably doesn't
help that my exhaust isn't standard either. Once the engine has warmed up and the idle speed settles a bit the cabin noise returns to normal-ish levels. To really feel the difference of the stiffer bushes you need take your car for a fast drive, the power delivery does feel more direct, to some this is probably obvious but it's my first time and wanted to share my thoughts. Pulling away from being stationary and reversing I find does vibrate the cabin as well. Overall, I hope this reduces the risk of the intake rubbing against this bracket, these bushes do make a difference where they are designed to make a difference, as mentioned, power delivery feels more direct and a small increase in responsiveness, not a bad mod for money.
