Finally I did it and can quit bitching. I will have to apologize, I didn't take pics during the install. Matt wanted to "go for the record" since the fastest install time I could find was 2 hours (this was all inspired by the fact that we dropped my tranny, removed the clutch, installed a new clutch and inspected the bellhousing, installed tranny, and bled the lines in like 2 hours and 5 minutes or something to that effect! ).
So this time around it was a no messing around ordeal, install time was exactly 1 hour and 26 minutes! We were moving. So install wise it was a peice of cake, other than the fact that the bolts that hold the mount down are fricking loooonnngg!! It took forever to get them out. But access to all of the bolts on the front mount were a cinch. I had to take the starter out to actually remove the mount, and then install the new one and done! The rear mount was a bit more tough, but nothing unusual. Everyone recommended we take off the plenum, yeah that didn't happen. Just a few extensions, cracked them all loose and broke the center bolt loose and it was out. We only had to move my throttle cable, brake booster vacuum line and my selenoids out of the way to remove the rear. Jack up the the motor a bit installed the new mount and tightened it all back down. Shit we didn't even need a compressor to break the bolts loose. The old mounts weren't as bad as I expected, but they were on the way out. The still had the form of a motor mount, but the rubber was cut up and you could see where the motor could flex and compress the mounts. I was not pleased to say the least.
So review time. I am impressed. But I was scared shitless when I first started it up. There was all kinds of vibration through the chassis I thought I seriously messed something up with all the noise that was going on. Then at low idle it was very vibrational in the cabin area. Is this a fairly normal experience for these mounts? I was not expecting this much of a race car feel with these mounts. Comments on this?
So we took it out for a test drive and I was very impressed. Normally I have traction loss in first, and chirp second hardcore. All kinds of traction in first now, and second still chirps really hard. (New tires may have helped this out a bit I don't know for a fact which is the real cause, but I would still smoke first with the old mounts and these new tires just when rolling and punching it in first.) The car feels faster than it ever has in my opinion. I still see it having a bit more left in it myself but I am trying to get some good gas into it and see if it makes a bit more timing. On that note has anyone had any issues by going to solid or polys with timing being pulled from the extra vibration occuring? All in all I say this is a great product, and I am pleased with the effects. I would say the vibration in the chassis is just a tiny bit too much for some peoples taste ( I don't mind it, but passengers think shit is going to blow up!), however by raising my idle back up to 1000-1100 range has really helped to smooth that out. Sorry for the long post but comments on my two questions are much appreciated!
'93 Dodge Stealth ES: BPU and a bit more maybe
Hey bois duz dis ebay chip work make mah whip teh fasterest?
Not a comment on the 3SX poly mounts in particular, just solid/semi-solid mounts in general:
I've got the MP solids and had the same reaction with the vibration. I had gutted my precats while replacing my mounts, so the engine was tenfold louder as well. Wonderful shock, I must say.
ARGH!!! Why am I typing like this?!?! Watching "Pride & Prejudice" so my thoughts are running in bad English!
I feel like there's more power going to the ground as well. The only thing I've noticed that I don't like (but am not sure I can attribute to the solid mounts) is that when pulling hard around 3rd gear there is a oscillating vibration when accelerating. I had thought that it might be the zip ties I put into my carrier bearings, but I'm not so sure it isn't an issue with the engine itself. The car has always had a bit of a 'lope', and this feels like the old lope given form. Probably an engine issue being transferred into the frame as vibration (I need to check timing). That's the best thing about stiffer mounts: you can *feel* each cylinder fire individually through your seat and steering wheel. You can also feel when something goes wrong!
It's been a couple days and I don't notice the vibration as much, but the car doesn't feel like a nice gentle touring coupe any longer... I like it.
new mounts are a must. My mounts are stock but they are in very good condition. I raced a 240sx today. I just installed a new DP with high flo cat and custom exhaust. The shitty stock mount didn't hold the engine and tranny in place good enough. My exhaust is now rattling. I have to see which weld is broken now.
Very happy with my 3sx mounts...the vibration seems to have lessened greatly from the first time I started the car with them in (1100 miles ago). It's only slightly noticeable at idle now. Much better than having the engine flopping around with the wrecked rubber mounts in anycase.
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