Hey guys I just released my new poly engine mounts. Let me know what y'all think. It's a true isolating engine mount meaning no through bolt. They fit all SA/FB & GSL-SE Rx-7s. Perfect for the street or track with a 65A durometer meant to mimic the Mazda Comp rubber mounts only with the durability polyurethane can offer. USA manufactured, incredibly durable with minimal NVH.
These have been real world tested by other forum members with excellent results. I did some destructive testing and tried to rip the aluminum part out of the half cut and it wasn't happening even trying to pry it out with a screwdriver so I'm confident they will hold their own.
Please feel free to ask questions or comments/criticism you have.

 

Scott knows this, but I’m going to be getting this and the transmission mount.

 

I could use these on my SA. I tried to order new mounts on RockAuto and they didn't fit the SA, the upper bell of the mount interfered with the engine. @MTheoryInc I don't have an instgram account, you have a website for your stuff? Wondering about the tranny mount Richard mentioned as well.

 

Rockauto is terrible for SA's, at least when I order anything through them. Get constant S3 parts.

Motor mounts look great, may pick up a set for the limited.

 

Those rock auto mounts are probably early 626 or b series truck they have a larger metal bell/top part.
You can DM me your PayPal email and I'll send you request. Engine mounts are $130 a set.

 

Thank you

 

nice design. how about making them for the FD

 

Here is the transmission mount.
79-80 SA and 81-85 FB OEM and polyurethane versions available. Also have a FB to S4 turbo transmission mount.

 

Thank you
Possibly, what would be the target for the FD stiff or more street oriented in your opinion?
One issue I see with the fd is the heat in that area. Remember the old noltec fd engine mounts? Those things were pretty good but would disintegrate from the heat.

 

Thank you for bringing a T2 swap mount to market - I have no idea why this was never offered by the likes of Racing Beat since they make the engine mounting solution for a 13b into 12a crossmember...

I'm not sure I'd be in the market at this time since I too build my own mounts, but how much for the T2 into FB trans mount setup?

Also - very nice on the poly engine mounts!

 

You're welcome and thank you.
The transmission mounts/crossmember are $350 for the poly mount version which is down from their original price when I was hand producing each one.
Now they are laser cut 1/4 steel, cnc bent, and powder coated. The outer bushings are infinitely replaceable as OEM are NLA making this the last crossmember/mount one would ever need.
After Jim Mederer passed racing beat went the way of most shops where money not quality became their main goal and we see this with their exhaust system when they cut ties with C.S.C Italy and started making them who knows where but we definitely know they are nothing like the old versions sound and quality. CSC Italy is still in business btw.

 

Good price for that, especially given that it'll bolt right in.

Seems you and I think alike (in reference to your comments about T3 in that other thread as well as just now about RB) - are you going to DGRR? If so we should chat!

 

Yes I think I'll be there this year, if so I would definitely like to meet up.

 

Maybe an opportunity for someone to step in and fill the void left open?

 

I have special deal just for everyone here on the Rx7club for my engine mounts. I will give the percentage off based on your rotor badge.
For example if you have a 20 year rotor badge it will be 20% off $130 per set, that's $104/set plus shipping
Same goes for the Rack & Pinion kit currently priced at $2500.
This sale is effective till the end of the month.

 

^Makes me wish I still had a FB that used the stock crossmember cause that's a great deal!

 

That is a good deal on the rack and pinion. It's back to it's introductory price now, isn't it? Hop on this if you can!

 

Superb quality as always, I still need to install the transmission mount, so the nuts are just threaded on a bit . Very pleased.

 

I’m super excited about the trans mounts! This has been a big void for these cars! Thank you for developing these critical parts!

 

Hey man, glad I got to you in time. You're going to need an oil pan. Good thing you didn't tighten those engine mounts!

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Oh, don't worry. Im premixing.

 

You're welcome, with the OEM outer bushings NLA and the 84-85 non replaceable it will definitely be that last crossmember one will have to buy because it's fully rebuildable. I also make a OEM style. 5-speed SA 79-80 & FB 81-85.

 

I swapped in MTheory's mounts from OEM ones that are a few years old and drove it over the last couple weeks.
There's noticeable vibrations felt through the chassis at startup and idle, but it's not harsh. It won't make the glove box or center console rattle.
Once on the move I can't tell.

I already had the transmission mount for a little more than a year, so I can say both won't make the ride unlivable.