Poly motor mounts

warmpancakes

New member
ok I have seen the pictures of melted poly motor mounts from running them without the shields, But how many people have run them with the heat shields? I dont really wanna run solids in the wifes truck so if the polys will survive with the heat shield Ill install them, The factory shields have been ceramic coated and them had new heat reflective material applied
 

dgoodhue

BuSTeD 4.3
Re: Poly motor mounts

I ran them with shields and an additional heat blanket.
Mine were starting to melt after 5k miles. I did do one 1000 miles round trip with them. They weren't bad and i only noticed them when the motor was out. I wouldnt do poly's.
 

ziembic

Donating Member
Re: Poly motor mounts

good enough Ill run the solids

I think you have left out some details. On the trucks that had meltage, were the downpipes coated? Stock/after market? Properly aligned to get the most clearance. I think you may regret solid motor mounts.
 

warmpancakes

New member
Re: Poly motor mounts

wifes pipe will be coated along with exhaust manifolds and the heat shields for the mounts, plus I will wrap the factory heat shields with the wrap they put on the intake of Indy cars
 

Sean Krupa

Moderator
Re: Poly motor mounts

Ken,

If you're worried about the vibration from Solids, I didn't notice a ton. You notice a little vibration at idle. Solid motor mounts weren't that hard to replace and I'm glad I did it so I don't have to do it again.

Hope this helps with your decision.
 

SyTyAddict

Member
Re: Poly motor mounts

I have solids on my stock Sy, the only time I notice any vibration is when stopped while in gear, it is gone if I put it in neutral. Everyone that has been in it was surprised at how smooth the solids are. I'm currently putting solids on the proto Sy, but I have a feeling it will be a good bit rougher due to the larger cam and tune that needs some work.

If you can get the engine to idle about as smooth as a stock truck, I think it will be a very small issue.
 

SyTyAddict

Member
Re: Poly motor mounts

I have solids on my stock Sy, the only time I notice any vibration is when stopped while in gear, it is gone if I put it in neutral. Everyone that has been in it was surprised at how smooth the solids are. I'm currently putting solids on the proto Sy, but I have a feeling it will be a good bit rougher due to the larger cam and tune that needs some work.

If you can get the engine to idle about as smooth as a stock truck, I think it will be a non-issue.
 

BoostedSUV

Active member
Re: Poly motor mounts

I had poly's on my truck with the factory heat shield and a blanket as well and they melted. I just put the truck back together with high temp coated manifolds and renz's heat shields with heat insulation adhered to them. I'm giving the poly's one last shot. My truck has enough vibration with them....
 

4C FED

Absolutum Dominium
Re: Poly motor mounts

You'll notice more vibration from switching to poly body mounts than you will switching to solid motor mounts.
 

jpalmer

New member
Re: Poly motor mounts

I have rode in two trucks with solids, i didn't even notice the difference between poly in my truck and solids. Not even a little, and both needed tuning work.
 

Mtn Z

Donating Member
Re: Poly motor mounts

The solids are literally a non factor in a SyTy from what I feel on mine compared to the original mounts and other trucks I have ridden in. My Camaro has solid mounts and isn't bad to deal with at all vibration wise, and the Sy is smoother than the Camaro.
 
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