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Thread: Motor Mounts
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07-24-2012, 05:03 PM #1
Motor Mounts
So, anyone have any suggestions on where to order motor mounts and any tricks to removal? I am hoping that replacing them will help with some of the y-pipe slap on the body. I know it won't fully correct, but hope to help... Any input? Difference between solid or poly? The stock ones have 113,xxx miles on them. Is it time to replace?
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07-24-2012, 05:32 PM #2
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Silver & Blue- 02 Camaro SS, 04 GTO
The stock OEM units are not too bad and you know they will fit. I also know they are a B**CH to change. Good luck.
My ride is a 2002 Camaro SS SLP #3296 with 30k, LTH, 3" Y, CME, Frost tune, K&N, ported TB, Blackwing lid, Bellows, MSD, Denso Iridium, and 85mm MAF, Bilsteins, Eibach springs, SLP strut brace, Adj. Panhard, TA Girdle, UMI, Pro 5.0, Nitto NT555
My wife has a 2004 GTO with the rare SAP, 18" wheels, K&N Cold Air System, MSD, Ported TB, Frost tune, Denso Iridium, Flowmaster cat-back, 3200 Yank, 75k
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07-24-2012, 06:17 PM #3
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07-24-2012, 06:57 PM #4
I'm up for the challenge. Is there a significant difference between solid or poly? Pros vs. cons?
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07-25-2012, 03:16 AM #5
I would definitely go with poly engine mounts. There are some pics and details in this K-member thread that included swapping out the mounts: http://www.ls1.com/forums/f66/k-memb...grades-163761/
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07-25-2012, 05:21 AM #6
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Silver & Blue- 02 Camaro SS, 04 GTO
Solid mounts will transmit every single engine vibration to the vehicle cabin. They are for racing only. A solid mount has no rubber or poly connecting the engine to the frame. Not recommended for the street.
Last edited by 2002ssslp; 07-26-2012 at 05:08 AM.
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07-25-2012, 05:44 AM #7
Looks like it's going to be poly then. I am also ordering a new PHB, SFC's and Sway Bars for the rear end. For the front, strut tower supports all from UMI. Is there anything else that would be advised in swapping out in the front? I am installing KYB struts at the same time. Thanks Jeff for the link, that'll definitely be a huge help!
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07-25-2012, 06:17 AM #8
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Phantom Black Metallic- 2004 GTO M6
Poly control arm bushings.
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07-25-2012, 06:26 AM #9
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07-26-2012, 05:10 AM #10
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Silver & Blue- 02 Camaro SS, 04 GTO
How about a trans mount ?
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07-26-2012, 03:45 PM #11
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- North Jersey
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Phantom Black Metallic- 2004 GTO M6
^^
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07-29-2012, 06:55 PM #12
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2000 Grand Prix GTP- 2000 Trans Am WS6 M6
2000 Pontiac Trans Am WS6 M6: 427ci LS3, Built T56, Moser 9" w/ 4.11 Gearing, Full Suspension, and 6-point Cage.
2000 Pontiac Grand Prix GTP: Twincharged w/ a T67 Turbocharger
2007 Chevrolet 3500 Dually Duramax: 3" Downpipe, Dual 4" Exhaust, EFILive Tuning
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07-30-2012, 02:00 PM #13
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Black/ Silver- 98 TA WS6/ 01 C5 Corvette
Just curious, what are the torque specs on the motor mount bolts?
1998 Trans Am WS6 - Phantom
421 CI LQ9, Tick Performance Custom Cam, TFS 255cc LS3 heads, Kooks 2" LT headers, Kooks 3" True Duals w/ high flow cats, FTP 104 lid, Speed Density Tune, 4" silicon tube, LS6 VCT, FAST 102 Intake, NW 102 TB, Oil Catch Can, SLP Bilstein Shocks w/ Vogtland Springs, CTS-V 4-piston Calipers w/C6 Z06 rotors, Stainless Steel Brake Lines, R1 concepts premium rotors, Hawk HP+ brake pads, VFN WSQ Hood, C5-R timing chain, SLP oil pump, E85 tune, Walbro 450 fuel pump, Deatschwerkz 95# injectors, Breathless performance headlights, Frost Tune, !HVAC.
(Coming Soon) BMR DSL, UMI TQ Arm
421 LQ9 14.8:1 on E85 Build/
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07-30-2012, 06:08 PM #14
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07-31-2012, 02:39 AM #15
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2000 Grand Prix GTP- 2000 Trans Am WS6 M6
If you're talking about a old school muscle car, it's completely different from an LS car. LS cars run a lot more smoothly than older cars and the Gen I motors. I have a huge cam in my car, and yes, I can barely feel it in the car, but for a stock car, there will be NO difference in ride.
Maybe "loss of power" wasn't the right phrase...
When the engine is mounted directly to the frame (as with solid mounts), there is nothing there to absorb/cushion the initial power deliverance. Because of this, there is a better throttle response all around. It's physics...energy is produced by the motor, the less energy that is lost throughout the car, the more energy (in this case, HP and TQ) is put to the ground. If the motor itself is moving with the flex of the poly or rubber motor mounts, then energy is being used to make that motion. Take that motion away and the energy is put where it's supposed to be.
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08-02-2012, 09:43 AM #16
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NBM- 1998 Z28
OK I just can't let this one pass by.
Rubber is in a motor mount to ABSORB Vibration period!!!
Poly is STIFFER than rubber and you can feel a little more vibration because it does not give as much as rubber.
Steel DOES NOT, I repeat does not give and you will feel even more vibration over the rubber or the poly.
Old School of New School(just to let ya know there is no new school) Metal to Metal does not give.. in a motor mount situation that is.
I have the Poly and like them a lot. I also have a rubber Trans mount because I need a little break on vibration somewhere. lol
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08-02-2012, 10:05 AM #17
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2000 Grand Prix GTP- 2000 Trans Am WS6 M6
I'm not arguing that, but from personal experience, I can tell you that the vibrations are lost throughout the rest of the car. The only noticeable vibration I feel is through the shifter, and I like that. It's a god damn muscle car, not a Rolls Royce, if it's not rattling, vibrating, or making a loud noise, it's not an F-body
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08-02-2012, 12:20 PM #18
I have Solids and would never do them again. I have a lot of extra vibrations and rattles and its just not pleasant for a car that's driven frequently. Obviously every car is a little bit different but solids definitely affected my care more than I expected...it wasn't as bad at first but the rattles have gotten a little worse. Polys should be absolutely fine on most cars.
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08-02-2012, 12:50 PM #19
have the ploys and absolutely love them!!! yes, a bear to install especially if you do so AFTER you install longtubes..
they got rid of that DAMN ORY slap on drivers side floor pan too!eibach sportline springs,kyb shocks and struts,adj. panhard,LCAs with relocation brackets,strut tower brace, sub-frame connectors,poly motor mounts, LT headers,magnaflo catback,ORY pipe, SLP lid w/K&N, ram air mod,egr delete,PP TB,1000CFM MAF housing, LS6 intake,160 T-stat, tune by frost
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