i have personally done both. poly is less noisy shifts are better though with stiffy mount.For $130 I think I would rather buy a brand new motor mount and fill it with urethane. Per Eloy's post on SL and Race Precision's website.
As ScionitiS said though. No added power. Just less wasted energy, and more power transferred to the ground.
dude i loaded my engine damper by jacking up the motor then tightening mount opposite the direction the motor would twist. i did notice less wheel hop in first n second gears. it also stopped all of the chatter from using a damper in nuetral or backing up driveways in reverse. i also did this in my fd n my gsx eclipse. for some reason the xb has become much louder in higher rpms expnslly than my other rides! my old dc2 ddnt even get this much louder. with a lightnd flywheel makes xb sound like a fast revvn chain saw!!!! defntly damper will save motor mounts! less movement = less stress on mountsi know this is an old thread, but has anybody found any gains form this? did i lower 0-60 time at all? make more consistant times? anything? let me know. i want to learn more about them.
By a little- yes. Decreasing mount flex is essentially same as decreasing your reaction time. The torque is not wasted on compressing bushings and twisting the motor, but transferred to the wheels without lag. The throttle responce feels crispier and the whole driving feels more sporty. So adding the engine dampener is worth it, if you can afford it.will this help give you a faster take off?
i would try using a thinner nut with a large flat washer.. it should be okDo these things work with upper strut braces? I dont think i have enough lenght left on the upper strut mount studs to add another 1/4 inch for the damper mount.