Recent Topics
AAP 25% Off
by Egg_Head
16 minutes 35 seconds ago
GM Ecotec 2.4 - Cracked Exhaust Manifold
by The Critic
Today at 05:05 AM
Half Price - Shell Helix HX7, Castrol Edge and GTX
by SR5
Today at 03:59 AM
Why hang your bicycle from the ceiling?
by mjoekingz28
Today at 03:47 AM
Oil For High Sustained RPM on BMW S52
by ZEK
Yesterday at 10:41 PM
Chevy brought the blazer back
by WiskyBadger
Yesterday at 10:07 PM
LC20 and uses in modern motor oil
by synman
Yesterday at 10:01 PM
Full Synthetic CJ-4 or > 5W-30 or 10W-30
by LeTempt
Yesterday at 09:57 PM
2018 RAM 1500 EcoDiesel
by OVERKILL
Yesterday at 08:37 PM
Fram SureGrip coating
by mobilaltima
Yesterday at 08:24 PM
Manual transmissioned electric car
by mjoekingz28
Yesterday at 06:45 PM
1991 Toyota Previa New JDM engine Redline
by Kurtatron
Yesterday at 06:26 PM
8 yr old channeling John Bonham
by Toy4x4
Yesterday at 06:02 PM
Traveller nlgi 2
by Spitter
Yesterday at 05:33 PM
Upgrading the Kohler 7000 series air cleaner
by Patrick0525
Yesterday at 05:08 PM
Any nano reefers here?
by RichardS
Yesterday at 05:04 PM
ARC remanufactured Power Steering Pump
by Pajero
Yesterday at 04:58 PM
John Deere "Easy Change" System gimmick
by SnowmanCO
Yesterday at 04:55 PM
Oz Planstic Bag Bans - not so green.
by Shannow
Yesterday at 04:31 PM
help me choose...
by chaindrive
Yesterday at 04:07 PM
Newest Members
Fatbrowndog0822, DRNJR, ZEK, Dudewayne, kmdz
65294 Registered Users
Who's Online
57 registered (cjcride, alcyon, billt460, Astro14, BrewCityR, bullwinkle, 4 invisible), 1011 Guests and 24 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
65294 Members
67 Forums
285754 Topics
4768956 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Topic Options
#4451281 - 07/06/17 01:00 PM Poly motor mount.... good or bad idea?
Hemispheres Offline


Registered: 01/14/17
Posts: 381
Loc: Virginia
I've managed to crack my stock liquid filled motor mount by repeatedly launching at 2.5k rpms and all around driving like an idiot.

I couldn't help it, I raced one person in my Buick and shortly thereafter I had random people pulling up next to me on the interstate/highways wanting to race. Balls to the wall or none at all. laugh

Anywho, A few months back I found a puddle of fluid under the car whilst dropping some metal off at the local scrapyard. Figured it was my power steering pump/hose. Going back about a month I noticed a clunk when shifting from P to R, and after hearing the clunk giving it gas results in a feeling of "shudder". Combine that with the fact that the car can't decide when it wants to shift under partial/half throttle and I have all the classic symptoms of a bad motor mount.

This is double the cost, but also geared towards performance and durability, I'm just wondering if the excess vibration would be worth it.

https://zzperformance.com/3800/poly-engine-mount.html
_________________________
2009 Buick LaCrosse (3800 Series III) - 137,000 miles.
PZ Plat HM/Mobil 1 HM
Bosch/Purolator/Mobil filters

Top
#4451282 - 07/06/17 01:01 PM Re: Poly motor mount.... good or bad idea? [Re: Hemispheres]
kschachn Offline


Registered: 12/26/05
Posts: 9398
Loc: Upper Midwest
Cool. If you're "driving like an idiot" as you say, it won't be long before you break something else.

laugh

Originally Posted By: Hemispheres
I've managed to crack my stock liquid filled motor mount by repeatedly launching at 2.5k rpms and all around driving like an idiot.

I couldn't help it, I raced one person in my Buick and shortly thereafter I had random people pulling up next to me on the interstate/highways wanting to race. Balls to the wall or none at all. laugh

Anywho, A few months back I found a puddle of fluid under the car whilst dropping some metal off at the local scrapyard. Figured it was my power steering pump/hose. Going back about a month I noticed a clunk when shifting from P to R, and after hearing the clunk giving it gas results in a feeling of "shudder". Combine that with the fact that the car can't decide when it wants to shift under partial/half throttle and I have all the classic symptoms of a bad motor mount.

This is double the cost, but also geared towards performance and durability, I'm just wondering if the excess vibration would be worth it.

https://zzperformance.com/3800/poly-engine-mount.html
_________________________
1994 BMW 530i, 227K
1996 Honda Accord, 262K
1999 Toyota Sienna, 394K
2000 Toyota ECHO, 267K

Top
#4451289 - 07/06/17 01:05 PM Re: Poly motor mount.... good or bad idea? [Re: Hemispheres]
SHOZ Offline


Registered: 06/28/03
Posts: 5746
Loc: Illinois
I use some sort of restrainer for engine movement. On my FWD V8 Taurus it was a chain from the front exhaust manifold to the subframe. On my RWD Gen Coupe it is a piece of cable attached to the head and anchored at the drivers side strut tower.

Never had to change a motor mount.
_________________________
2008 Hyundai Accent 1.6L 5 sp manual hatchback
2010 Hyundai Genesis Coupe Track 2L Turbo 6sp manual

Top
#4451300 - 07/06/17 01:15 PM Re: Poly motor mount.... good or bad idea? [Re: Hemispheres]
MrHorspwer Offline


Registered: 12/18/06
Posts: 1422
Loc: Michigan
Yes, poly mounts (engine and trans) are a worthwhile upgrade in a W-body if you're making more power than stock or find yourself chewing up OE mounts.

Top
#4451321 - 07/06/17 01:31 PM Re: Poly motor mount.... good or bad idea? [Re: Hemispheres]
MarcS Offline


Registered: 11/18/16
Posts: 183
Loc: PA
I used to have a Regal GS that I sold before redoing the lower motor and trans mounts. I think i have a set of solid rubber ones for a GTP in my garage. I got those because they don't leak like the liquid filled mounts and don't make the engine vibrations as bad as poly. If you want them, shoot me a PM and I'll look for them. I'd also recommend flipping your upper motor mounts. free mod that reduces a lot of the movement.

Top
#4451352 - 07/06/17 01:57 PM Re: Poly motor mount.... good or bad idea? [Re: Hemispheres]
IndyIan Offline


Registered: 09/23/08
Posts: 9092
Loc: Ontario, Canada
I have a "soft" poly torque mount in the Focus. In my car there are two upper mounts on each side of the motor/trans and lower torque mount that keeps the engine from twisting. By just restricting the twist motion its pretty much stopped wheelhop, and under light throttle there is nearly zero extra NVH. If you DD your car you might want to try the torque mount first.
_________________________
07 Focus ZXW, 5spd manual, 206km M1 5W30
18 Outback 2.5 CVT 5km FF

Top
#4451375 - 07/06/17 02:17 PM Re: Poly motor mount.... good or bad idea? [Re: MarcS]
Hemispheres Offline


Registered: 01/14/17
Posts: 381
Loc: Virginia
Originally Posted By: MarcS
I used to have a Regal GS that I sold before redoing the lower motor and trans mounts. I think i have a set of solid rubber ones for a GTP in my garage. I got those because they don't leak like the liquid filled mounts and don't make the engine vibrations as bad as poly. If you want them, shoot me a PM and I'll look for them. I'd also recommend flipping your upper motor mounts. free mod that reduces a lot of the movement.


I've already flipped the rubber bushings on the dogbone mounts, first thing I did before actually spending money on performance parts. If I decide to the solid route I'll shoot you a PM, I'm just liking the idea of little to no engine movement the poly's offer.
_________________________
2009 Buick LaCrosse (3800 Series III) - 137,000 miles.
PZ Plat HM/Mobil 1 HM
Bosch/Purolator/Mobil filters

Top
#4451380 - 07/06/17 02:20 PM Re: Poly motor mount.... good or bad idea? [Re: Hemispheres]
punisher Offline


Registered: 09/11/04
Posts: 2425
Loc: snowblind in TX
Is using a simple piece of chain between block and frame/subframe too ghetto now?

Top
#4451382 - 07/06/17 02:23 PM Re: Poly motor mount.... good or bad idea? [Re: punisher]
SHOZ Offline


Registered: 06/28/03
Posts: 5746
Loc: Illinois
Originally Posted By: punisher
Is using a simple piece of chain between block and frame/subframe too ghetto now?
I had to use shiny imported 316 SS chain to keep the naysayers quiet.......
_________________________
2008 Hyundai Accent 1.6L 5 sp manual hatchback
2010 Hyundai Genesis Coupe Track 2L Turbo 6sp manual

Top
#4451384 - 07/06/17 02:25 PM Re: Poly motor mount.... good or bad idea? [Re: Hemispheres]
Trav Offline


Registered: 11/20/06
Posts: 18885
Loc: MA, Mittelfranken.de
I have both the engine and trans mount in ply in a GTP 3800, it also liked to tear engine mounts apart. They work well but they do vibrate noticeably but so does my engine with no balance shaft (double roller chain installed) so how much is just from the mounts I don't know.
_________________________
ASE L1, Master. Deutsch Meisterbrief.

Top
#4451387 - 07/06/17 02:29 PM Re: Poly motor mount.... good or bad idea? [Re: punisher]
Hemispheres Offline


Registered: 01/14/17
Posts: 381
Loc: Virginia
Originally Posted By: punisher
Is using a simple piece of chain between block and frame/subframe too ghetto now?


It isn't a matter of ghetto to me, it's a matter of doing it right. I don't feel comfortable with a chain putting all that extra strain on my exhaust studs and I rather like the finish of my tubular exhaust manifolds.
_________________________
2009 Buick LaCrosse (3800 Series III) - 137,000 miles.
PZ Plat HM/Mobil 1 HM
Bosch/Purolator/Mobil filters

Top
#4451410 - 07/06/17 02:47 PM Re: Poly motor mount.... good or bad idea? [Re: Hemispheres]
AntsinmyEyes Offline


Registered: 08/09/15
Posts: 199
Loc: Colorado
Have poly motor mounts on my rx7. I notice aome minor vibrations at lower rpms but they go away as you go through the rpm range. Also i can do burnouts now without my car hopping around. Been pretty sweet id say
_________________________
1987 mazda rx7
2004 mazda rx8
1995 miata
2005 dodge ram

Top
#4451438 - 07/06/17 03:16 PM Re: Poly motor mount.... good or bad idea? [Re: Hemispheres]
Kawiguy454 Offline


Registered: 06/01/15
Posts: 581
Loc: Arizona
Back in the day I used steel solid mounts on my 454 Chevy vette and no chains needed. Yes it transmitted its beastly musical vibrations to the frame but that was part of the fun. I would not hesitaTE ON THE pOLYS

Top
#4451454 - 07/06/17 03:35 PM Re: Poly motor mount.... good or bad idea? [Re: Hemispheres]
Lolvoguy Offline


Registered: 02/06/14
Posts: 2336
Loc: Canada
Originally Posted By: Hemispheres

Balls to the wall or none at all. laugh


I like this. Never heard this before.

I'm going to use this if you don't mind
_________________________
06 Lexus IS350- Wife
88 BMW 325is- Mistress
03 Suzuki SV650S- One night stand

Top
#4451574 - 07/06/17 05:52 PM Re: Poly motor mount.... good or bad idea? [Re: Lolvoguy]
jkasch Offline


Registered: 04/07/10
Posts: 171
Loc: Michigan
Originally Posted By: Lolvoguy
Originally Posted By: Hemispheres

Balls to the wall or none at all. laugh


I like this. Never heard this before.

I'm going to use this if you don't mind


If you're not being facetious (maybe it isn't common in Canada), it's an aviator term for having all the ball-topped controls all the way forward for maximum speed. For years, I thought it referred to male anatomy. duh Doesn't make much sense in that regard.

Top