Experience with solid motor mounts?
03-03-2016, 12:47 PM
#1
Pro
Thread Starter
Experience with solid motor mounts?
Car is a 2007 Z06.
I noticed that one of my stock motor mounts on my car appears to be blown the other day when I was working on my brakes. I was hoping to wait until I pulled the motor to replace the mounts, but I think that timetable is going to be moved up.
In any case, I'm not a fan of polyurethane or stock mounts. Has anyone used solid or delrin mounts? I've had trouble finding any. About the only ones I've seen are the MTI Racing Aluminum mounts with the rubber pad.
I'm aware I will have more NVH with these mounts. The car is trailered to and from race events and almost never driven on the street. The exhaust alone hits 115 dB inside the cab, so yea...
I've heard some people express concern that solid mounts will put more stress on the engine block and distort in. Of course, that's on older cars that don't have frames as stiff as the C6 Z06. I could also add a bar too take any sort of deflection if it was a possible issue.
Also, is it worth getting lowering mounts at all?
Really I'm just looking for some input here. If there were any guys with full blown race cars and solid mounts, I'd love to hear your experience.
I noticed that one of my stock motor mounts on my car appears to be blown the other day when I was working on my brakes. I was hoping to wait until I pulled the motor to replace the mounts, but I think that timetable is going to be moved up.
In any case, I'm not a fan of polyurethane or stock mounts. Has anyone used solid or delrin mounts? I've had trouble finding any. About the only ones I've seen are the MTI Racing Aluminum mounts with the rubber pad.
I'm aware I will have more NVH with these mounts. The car is trailered to and from race events and almost never driven on the street. The exhaust alone hits 115 dB inside the cab, so yea...
I've heard some people express concern that solid mounts will put more stress on the engine block and distort in. Of course, that's on older cars that don't have frames as stiff as the C6 Z06. I could also add a bar too take any sort of deflection if it was a possible issue.
Also, is it worth getting lowering mounts at all?
Really I'm just looking for some input here. If there were any guys with full blown race cars and solid mounts, I'd love to hear your experience.
Last edited by Dubstep Shep; 03-03-2016 at 12:49 PM.
03-03-2016, 05:30 PM
#2
Get the hinson mounts. They are not solid but very stiff. https://www.hinsonsupercars.com/p-12...vette-gto.aspx
I put them on my car since both mounts busted on me and were causing my driver side header to hit the steering arm. I have had them on for about a year now and I dont even notice them. The motor is super stiff though and doesnt shake like with the stockers. They have ones that are 3/8 lower as well. I used the stock heat shields on them as well. They also sell the heat wrap for them. I would not go solid mounts. I daily my car and take it and drive it hard in the mountains and canyons a lot and so far they hold up great.
I put them on my car since both mounts busted on me and were causing my driver side header to hit the steering arm. I have had them on for about a year now and I dont even notice them. The motor is super stiff though and doesnt shake like with the stockers. They have ones that are 3/8 lower as well. I used the stock heat shields on them as well. They also sell the heat wrap for them. I would not go solid mounts. I daily my car and take it and drive it hard in the mountains and canyons a lot and so far they hold up great.
Last edited by Twistedpixels; 03-03-2016 at 05:33 PM.
03-03-2016, 05:37 PM
#3
Pro
Thread Starter
Get the hinson mounts. They are not solid but very stiff. https://www.hinsonsupercars.com/p-12...vette-gto.aspx
I put them on my car since both mounts busted on me and were causing my driver side header to hit the steering arm. I have had them on for about a year now and I dont even notice them. The motor is super stiff though and doesnt shake like with the stockers. They have ones that are 3/8 lower as well. I used the stock heat shields on them as well. They also sell the heat wrap for them. I would not go solid mounts.
I put them on my car since both mounts busted on me and were causing my driver side header to hit the steering arm. I have had them on for about a year now and I dont even notice them. The motor is super stiff though and doesnt shake like with the stockers. They have ones that are 3/8 lower as well. I used the stock heat shields on them as well. They also sell the heat wrap for them. I would not go solid mounts.
I think at this stage it might be easiest to just make my own out of some aluminum bar stock. I've only found a couple places that sell them and they're WAY overpriced IMO for two pieces of aluminum with a bolt through them.
03-03-2016, 10:04 PM
#4
a few ebay vendors sell poly, delrin, and aluminum mounts for cheap
the issue is that your knock sensors may give false readings with solid mounts so you may have to tune out the timing retard tables
good luck!
the issue is that your knock sensors may give false readings with solid mounts so you may have to tune out the timing retard tables
good luck!
03-04-2016, 09:56 AM
#6
Pro
Thread Starter
Not saying you're wrong, but like I said, I've never actually heard from someone that has done solid mounts and had that issue. I'll document my experiences if I do go solid mounts.
Unfortunately, the Pfadt mounts are also Polyurethane. They're also quite expensive...
I think I'm just going to buy a set of these:
https://creative-steel.com/shop/97-0...-ultra-mounts/
I looked into material costs, and the aluminum would cost me about $50 to begin with, so $90-$100 is quite reasonable IMO.
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thehaggis (03-05-2016)
03-04-2016, 02:02 PM
#8
Pro
Thread Starter
04-02-2016, 06:24 PM
#9
DUBSTEP
I am going to make 1 solid for my drivers side any day now with my lathe did you buy those 95 dollar ones? if so what is the vibrations??I may put a thin layer of rubber top and bottom to reduce harmonics
I am going to make 1 solid for my drivers side any day now with my lathe did you buy those 95 dollar ones? if so what is the vibrations??I may put a thin layer of rubber top and bottom to reduce harmonics
Last edited by nitrouspaul; 04-02-2016 at 06:29 PM.
04-05-2016, 02:58 PM
#10
Pro
Thread Starter
Yes, I bought the solid ones cut 1/2" shorter and I'm currently running them with with 1/4" of rubber between them and the frame.
I can't really tell a difference on the vibrations at all.
04-05-2016, 04:46 PM
#11
Burning Brakes
I installed the Hinson mounts about two years ago.
They have preformed flawlessly. Some increase in HVH but nothing significant. You can witness the improvement by the reduction in shifter movement when shifting.
Would I install them again? You bet.
They have preformed flawlessly. Some increase in HVH but nothing significant. You can witness the improvement by the reduction in shifter movement when shifting.
Would I install them again? You bet.