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Rigid motor mount for street use???

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Old Aug 6, 2006 | 02:52 PM
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MAD_IROC-Z_85's Avatar
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Car: '85 Iroc-Z
Engine: 355cu, 11:1, 292H, 750cfm, LT1 head
Transmission: T5 non/wc
Axle/Gears: 3.73, 7.5in 10bolt posi
Rigid motor mount for street use???

Any one use rigid motor mount on is third gen ???

I want to now if it cause two much vibration or if its acceptable for daily use!!

My headers are taking a good shot on lunching and am bored of those leak!!!

I have to replace my one by uretane or rigid one, help me choose it!!!
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Old Aug 6, 2006 | 03:01 PM
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From: Surrey, BC
Car: 1991 Z28
Engine: 305 TPI
Transmission: WC T5
Axle/Gears: 3.73 Posi
Urethane mounts will stiffen things up without being too rigid
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Old Aug 6, 2006 | 03:24 PM
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1320_Guy's Avatar
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From: Baton Rouge, LA
Car: 89 RS
Engine: 305
Transmission: th350
If you have some small vibrations now urithane mounts will make them worse. Also you wont be able to realy have alot of loose items close togeather, because they will vibrate alot.
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Old Aug 6, 2006 | 03:54 PM
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From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Originally Posted by matt_p
Urethane mounts will stiffen things up without being too rigid


JamesC
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Old Aug 7, 2006 | 08:47 PM
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MAD_IROC-Z_85's Avatar
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Car: '85 Iroc-Z
Engine: 355cu, 11:1, 292H, 750cfm, LT1 head
Transmission: T5 non/wc
Axle/Gears: 3.73, 7.5in 10bolt posi
Do 3-1116 'Energy Suspension' is the good parts #

Thanks but, ...

Do 3-1116 'Energy Suspension' is the good parts #

At my performance part store, they tell my that is for 93-02 and that the part I need (I don't ask him the number he got) cost 80$ each instead off 28$ each so !!

In my internet search, I found that 3-1116 is the left & right side motor mount insert.

Is that correct and do anybody use them!!!
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Old Aug 8, 2006 | 05:43 AM
  #6  
JamesC's Avatar
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From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Originally Posted by MAD_IROC-Z_85
At my performance part store, they tell my that is for 93-02 and that the part I need (I don't ask him the number he got) cost 80$ each instead off 28$ each


Check the following link and you'll see that 3-1116 is the correct p/n for both 305's and 350's:

http://www.energysuspension.com/pages/mt_tr2.html

Since these are inserts only, take note of this link:

http://www.energysuspension.com/pages/mt_tr1.html

FYI, I used them in my 305 and now my 350.

JamesC

Last edited by JamesC; Aug 8, 2006 at 05:50 AM.
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Old Aug 8, 2006 | 12:55 PM
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From: Southwest Florida
Car: projects.......
ridgid mounts are intended for race only. Yes, they can/will cause A LOT of vibration.
- go with the urethane. As has been stated, solid, but not too solid.
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Old Aug 10, 2006 | 08:38 PM
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Car: '85 Iroc-Z
Engine: 355cu, 11:1, 292H, 750cfm, LT1 head
Transmission: T5 non/wc
Axle/Gears: 3.73, 7.5in 10bolt posi
I'm just coming back from the store whit my set of 3-1116, I will install it this weekend and go beat the beast!!

I will go whit tranny and torque-arm Energy bushing for now, and a full suspenssion kit for the end of the summer!!

What shock and strut would you all recommend me? I'm watching on ebay for great deal!!!
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