13 replies to this topic

[Ryan Roberson]

Any easy way to tell the difference?  I ordered the comp mounts, and they were packed in paper, not in the typical bag with the Mazda part number on it.  Anyhow, I replaced them before Mid-O, and I'd say I'm not certain I actually have the comp mounts given the experience.  Any part number or marking difference?  The only thing I noted was a concerted effort on the part of someone to mark the sides of the mounts with a white marker.  I'm hoping that means "comp mount"!

[davew]

IMHO, the comp mounts are better than the stock ones as far as strength. But that is the only difference. You will not notice anything in how the car drives. If you want something stiff, go to a poly mount like the ones I had made for STL/Prod cars. They are not legal for SM.

[Jeff Wasilko]

Best Answer

In my experience the comp mounts have a bit of white paint on a raised bump on each side.

[BNaumann]

Biggest difference I noticed is the amount the shifter moves on camera when scrubbing tires.

[Ryan Roberson]

Funny, Brian, that was a test I was doing to see if the new mounts are better/stiffer than the ones I replaced.  I was watching my videos before/after the swap.  I was hoping the mount swap would help with the 2nd to 3rd gear shift (in the corners).  It didn't help much, if at all, but practice will probably solve the problem.

 

Jeff, thanks for nailing the confirmation.

[Rick Worth]

Funny, Brian, that was a test I was doing to see if the new mounts are better/stiffer than the ones I replaced.  I was watching my videos before/after the swap.  I was hoping the mount swap would help with the 2nd to 3rd gear shift (in the corners).  It didn't help much, if at all, but practice will probably solve the problem.

 

Jeff, thanks for nailing the confirmation.

So I'm not the only one that has that issue? LOL. I've found that you don't grab the shifter for the 2-3 shift but just push it forward with your open palm helps. Let the springs do it. 

[Dave D.]

To me, I can tell immediately when I start the engine. As the engine lights up and gives that shake, the stock mounts let the engine wiggle much more then the comp mounts. Then as I let the clutch out the Comps feel more direct and reactive,especially when using the more aggressive puck style clutch disc(even with the sprung center). Side by side comparison will show the difference.

[ECOBRAP]

Anyone have the part number for the Mazda Comp motor mounts?

[Steve Scheifler]

They should be in the GCR under allowed modifications.

[Steve Scheifler]

9.1.7.3.m. The Mazdaspeed motor mount, part NAY1-39-040 is allowed.

[OrangeCrush86]

I just ordered and received two of them. When I pulled my current engine I found that both stock mounts had been been broken. Rubber separated from the metal on both sides. Good thing these things don't have any torque, who knows how long I was racing with them like that lol.

[tburas56]

What is the best way to change the mounts out? Is there a easy way?

 

Besides getting some else to do it....

[ECOBRAP]

I just ordered and received two of them. When I pulled my current engine I found that both stock mounts had been been broken. Rubber separated from the metal on both sides. Good thing these things don't have any torque, who knows how long I was racing with them like that lol.

 

Yep first race in the new car and the motor moved back and forth a solid 2-3 inches. No wonder I was missing 2-3 gear shifts mid corner, whole thing was probably flexed off to the side.

[EricJ]

The driver's side is harder to take out than the passenger's side, so take the passenger's side out, then the driver's side. Then replace the driver's side followed by the passenger's side.

Use a jack with a block of wood under the oil pan. Be careful to not break the coils when you raise the engine.