Thread: Solid Rear motor mount

JWT used Nismo press ins I believe, I have two sets that I will never get rid of. Place Racing mounts used a slightly harder material than ES and Prothane as well.

Brent

come on! stop with the tease, you know I was looking for a set! I shouldn't have sold mine

Yeah, quite a bit of exaggeration in those statements.

It sounds like those of you that are talking the solids down are trying to use them for daily-d's? I can imagine you'd have objections. They are pretty hardcore and not meant for the weekday warrior duty.

You do have to worry about bolts coming loose when using the solid mounts. They rattle everything apart, so make sure you torque everything to spec and you shouldn't have any issues.

How would I favor with a stock rear mount and prothane inserts in the front, passenger, and trans mounts?

I installed the passenger and trans mounts today, have a brand new front dogbone mount with prothane inserts that I was going to have pressed in, but should I hold off in favor of a solid front mount for my b14?

With these 3 installed, will the rear still need serious attention?

Edited this out because I cross posted here with a conversation to someone else.

Thanks for quick reply. Sounds like I am in the market for a good rear mount too then.

Let's do a group buy!!

But if it worked for you, lol...

We need to find out the exact material properties of the JWT/NISMO mounts. They have the perfect balance. From an engineering perspective, the shock stress on the gearbox and diff greatly increase with an extremely rigid rear mount. This is really only an issue for the turbo guys. I feel that the JWT/NISMO mounts protect the transmission while providing enough rigidity and control.

If I can get my hands on some JWT/NISMO mounts, I can do some basic testing and use the data to figure out exactly the range we are looking for and what material we can use to make these. Wether a forum member makes them or a a company, we can get this done properly.

Anyone who has a set of JWT/NISMO mounts that are not installed and is willing to send let me borrow one or two to do some testing, please PM me, I could pay for shipping and would have the mounts shipped back out within a week.

I have a set of black Prothanes on the way. I plan to try some cross drilling on them after I run some finite element analysis on different materials in Solidworks so I have a baseline of compliance under load for different materials. I may also be able to cross drill and fill the holes with another material and see how that changes things. But I really need to test a JWT/NISMO rear mount and see what the differences are.