I gotta admit they are not all over the place as I'm having a difficult time sourcing them out.

Is their a difference b'n different makes? Please provide the make, links or prices on these please.

 

If I end up getting solid mounts I will deffinatly be ordering them from scalliwag, there is a thread about his mounts in the rotary performance section.

 

Scalliwag makes his own custom mounts which, last i heard, were goin for $50 for the pair. a rather competetive price.

 

i think ill get those too...i havent really thought of mounts till i saw this thread....

 

I've heard this before. I didn't pay much attention much b'c I thought that my Mounts have been addressed already. Until, of course, I have learned of the Rotary Builder Installing my now dead TII Motor with 2 broken Mounts.

 

I'm flattered to have made a difference In your life.

 

Ever been in an FC with solid mounts? Its not as smooth as you might think!

 

An alternative:
https://www.rx7club.com/forum/showth...hreadid=193926

 

I turn them myself (or I did until my lathe got stolen). They are god-awful simple to make.

I wouldn't use them in a street car, for those considering it. The gain is ridiculously minute over poly mounts, and the vibration is far greater.

 

oh yea, how bad is it? worth it at all?
i have been in 87GTRs and i believe he has Scalli's solid mounts. i'll have to ask BDC. i didnt notice it so much as the big half bridge port.

i have grown to accept scath's word and will do so now. thanks man.

 

Its just one of those little things that would bug you on a street car, kind of like how you can deal with a shifter rattle from your short throw shifter... but its annoying in the end.

I just don't see the point for it. The difference over poly is so tiny as it just doesn't make sense, where as the gains in vibration are significant.

 

i asked scalli about making rubber end caps for the mounts and he started to explain why it was a bad idea. i wish there was a good way to do this. he said the reasons for not doing it are somewhat technical and that my pea-sized brain would shut down about 3 seconds into the explanation, so just left it at "its not a good idea." at this time i smiled and nodded.

 

I just dont think the benefits (if any) outweigh the negatives.

 

Benefits:
Unbreakable (important in racing).
Zero percent deflection for instant throttle response. (important in racing).

I would estimate poly bushings do 99% of the latter task without the associated NVH. No one would ever be able to tell the difference by driving, so why bother with solid mounts for the street?

Casio... the rubber is not such a hot idea since the stud itself would transfer the vibrations anyway (easiest explanation without going ahead and describing the detrimental axial loading on the rubber sheets).

 

Scathcart...

Did you change your MSM name or something? Cause I never see you on anymore..

 

MSN crashed on me when I tried to update it, and I lost all of my contacts. PM me your email, I thought I had it, but I guess I don't.

 

Uh, immovable implies the twisting torque force ends up going to somewhere else.  There's a chance you end up stressing and breaking something else.



-Ted

 

silverrotor: CP Racing makes some nice ones out of aluminium. I have also seen homemade "ghetto" mounts made of hockey pucks and wood.

 

Umm, yuppers I have.


Thanks for the good read!

scathcart, the reasons as to why I'd like to have them In Is b'c both Mounts I have In their vibrated my Engine like an epoliptic bull In mid - to high rpms at Idle (although, It would have been corrected to begin with If proper Mounts were Installed) but also I like the better launch that comes with It at the expense of the vibrations and so on. My car Is tight anyway, so I am able to Install them w/o being so reluctant.

So, you are not keen on having these on a non-daily driven FC than Ted?

They do? Well that settles as to where I will be getting them. Thanks! I've also seen Hockey Pucks too. Man, thats retarded.

I saw 23racer and 84 Racing's car last night. I just realized that I should have asked where they got/made It from. I'll enquire on these next time I find myself there passing wrenches and what not.

 

I would highly recommend the polyurethane ones over the solid ones.  Keep in mind that the passenger side mount uses an arm under the oil pan, and I wouldn't be surprised oil will start leaking from there under sustained use.

The solid mounts also mean more shock and torque will be transmitted through the drivetrain, and I think the weak point in the system now is the rear diff "ears".  These have been known to crack and fail pretty regularly - mostly from drag racing.

I do run the competition mounts on my car now, and they do an admiral job of keeping the noise & vibration down but allowing a little play for engine shifting.



-Ted

 

Given that, what are your (Ted) comments about the 13B engine brace? (forgot who sells it... )

 

RB has one, and Mazdatrix has one that is integral to their strut tower bars.

 

I try not to thread jack - I'd be willing to reply to a new thread.


-Ted

 

By all means...be my guest Ted. I'm done.