View Poll Results: Which Motor/Trans Mount Combo

Stock/Stock

4.55%

Poly/Stock

21.82%

Stock/Poly

0.91%

Poly/Poly

63.64%

Solid/Solid

9.09%

Voters: 110. You may not vote on this poll

Replacing Motor/Trans Mounts - Which Combo?

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Jan 2, 2008 | 11:12 AM

#61

Carshopinc.com

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From: Moline, ILLINOIS

I used the Prothane mounts on my car, They made a very noticable difference in cars firmness and eliminated the exhaust from banging on the floor. The road noise will be greater but the car will feel much tighter than stock....
I give these a poly/poly A+

http://prothane.carshopinc.com/produ.../72998/7-512BL

http://prothane.carshopinc.com/produ...66932/7-1604BL

http://energysuspension.carshopinc.c.../21364/3-1111G

Feb 15, 2008 | 05:14 PM

#62

Lt1Porsche

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From: Midlothian, Virginia

I went with solid motor mounts with a poly trans mount. This combo was recommended by Spohn.

Feb 7, 2009 | 11:49 AM

#63

slowpoke96z28

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From: cedar hill, tx

Quote:

Originally Posted by Lt1Porsche

I went with solid motor mounts with a poly trans mount. This combo was recommended by Spohn.

How do you like it? whats it like to drive on them?

Feb 7, 2009 | 12:40 PM

#64

Mumbles

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From: SouthEastern Iowa

Quote:

Originally Posted by SpdFrk1990

So do you guys think i should do the motor mounts then when i install my kooks? Would the stockers be fine you think or would the polys help the exhaust from hitting the floor.

I haven't voted, but my friend and I are putting his 98 Z28 back together today. We're installing LTs, ORY, & Maganaflow Catback. We put the LT's on and then realized we needed to do the Motor Mounts at the same time. We attempted the job without removing the headers. We ended up twisting off a bolt while installing Prothane Polys and were forced to uninstall the drivers header. That turned out to be a good thing. It allowed us plenty of room to reinstall. I definitely recommend at least removing the drivers header, if not both, when doing Motor Mounts. For now we're sticking with the Stock Tranny Mount. I guess if he experiences shifter movement we'll do a poly in the future. Once we finish his, its my turn. Should go smooth after learning from his. =-) I'll be sure to vote after the first "seat-of-your-pants" feel.

Feb 7, 2009 | 12:50 PM

#65

slayerized6

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poly/poly. i heard if you go solid on both motor and trans you risk breaking the tailshaft on the trans

Feb 7, 2009 | 02:12 PM

#66

SpdFrk1990

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From: Cincinnati

Yeah I replaced them when I did the headers about 2 yrs ago now. The poly motor mounts with the TA relocation and bmr adj tq arm was a great combo I since sold the car though.

Feb 8, 2009 | 02:49 AM

#67

5.slow99

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From: fenton, MO

i would go with the poly/poly setup, works great for me. just enough movement for access and stable when i need it. its pretty cheap too

Feb 8, 2009 | 11:34 AM

#68

XxApollynxX

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Holy old post! But I would do Solid Motor Mounts and Poly trans mount!

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Feb 8, 2009 | 03:01 PM

#69

Shadow1999

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From: Vegas

I went Prothane poly/poly and am very happy with it. My old mounts were so bad that they fell out of their shells. Have had them in for a month and just completed my suspension a week ago and it all works well together. I actually think the whole car feels more solid AND smoother. I noticed a little more vibration through the chassis at idle, but it's nothing compared to my old '68 that rocked the car around during idle (it had ES poly mounts in it).

Apr 28, 2009 | 07:38 PM

#70

02 BLK WS6

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From: Glen Carbon, IL

I just installed poly motor mounts. It feels much more solid and the engine doen't shake anywhere near as bad. I have a poly trans mount, but haven't installed it yet. I bought the Energy Suspension as a set. I'll be installing the tranny mount soon.

Apr 29, 2009 | 12:52 PM

#71

Wesmanw02

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Quote:

Originally Posted by MeentSS02

I personally use poly/poly on my ride...I wanted some flex in the system to making swapping clutches/transmissions easier, but I wanted to keep the engine and shifter as stable as possible.

Same here. Poly/Poly is the way to go.

You get 9/10's of the stiffness of solid mounts without the vibrations and harshness.

Jun 30, 2009 | 08:40 PM

#72

colews6

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From: Lantz, Nova Scotia, Canada

i just installed ar headers and y pipe and i should have done the mounts but stupid me didn't. is it a big job for a shop to put them in with the headers in?

Jun 30, 2009 | 09:02 PM

#73

slayerized6

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Quote:

Originally Posted by colews6

i just installed ar headers and y pipe and i should have done the mounts but stupid me didn't. is it a big job for a shop to put them in with the headers in?

to swap motor mounts with stock manifolds its already a bitch. with long tubes, its impossible; just take a look from underneath; you need to remove the long tubes to swap them pretty much

however, if your lucky, if the shop you bring them too does all the work by labor hours in the book,

Jun 30, 2009 | 10:11 PM

#74

Arc00TA

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From: The 'Nard

Quote:

Originally Posted by slayerized6

If you really want to do this easily, pull your radiator. I had mine already out for a t-stat and pulley change, and it took me literally 30 minutes to get the alternator off, stock mounts off, and another 30 minutes to get the new ones in and lined up/bolted in (spohn solids). By being able to jack the front of the car up onto jack stands, and sitting kind of under the car in the space in front of the motor, it was really easy to do the work.

Jun 30, 2009 | 11:48 PM

#75

SSINNER

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From: Fairfax, VA

I went poly/poly. Summit has a package deal. They went in a at the same time as my heads and cam so i cant tell you a before heads/cam after heads /cam difference but i could tell the difference at first. Just feels more solid and u feel more motor vibration but i dont notice anymore. A must though to keep the exhaust from banging the floorboard.

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