NEGATIVE comments are not welcome. Constructive criticism is.

I'm just curious, if such a thing were to exist, how many of you would be interested in purchasing such an item?

A replacement bushing that would be stiffer than the OEM rubber mount, yet provide a reduction in vibration transmission over the solid bushing designs. It would be a direct replacement.

**edit:

I am designing a replacement bushing for the Hasport mounts that will provide reduced vibration transmission to the chassis. It will provide less engine movement than the OEM mount, yet be a direct replacement for the Hasport bushing. This is the bushing only, not the entire mount itself.

Any thoughts and comments are welcome.

 

Engineering oxymoron. Unpossible unless they are soft as the factory bushing which would be equally impossible to achieve because of the non-linearity of the factory bushings. So you'd just have crappy motor mounts in blingy aluminum casings.

Have you really thought this through? Curious to hear details of your potential design.

 

Yes.

No, it's not an engineering oxymoron. There is an actual science to engine mount design (including the bushing) and placement. I am an engineer. It is possible. I have a prototype design I am considering having produced for real-world testing and evaluation purposes. I only ask if others are interested in order to determine if it is cost effective for me to go into production with my design, as it is not cheap to manufacture them.

The alternative is to settle for the vibration that results from the solid bushing design. But I want performance AND comfort.

The OEM mounts rubber are about 70-74A durometer. The OEM mounts allow for reduced vibrations because of the voids designed into the engine rubber. It allows for slight engine movement at low frequencies (i.e, idle) which reduces vibration transmission to the chassis. The solid bushing designs of the Hasport mounts do not allow engine movement. As a result, more vibrations are transmitted to the chassis and as a result, the cabin.

 

well, the hot ticket these days is auto boutiquesque parts, so with the right price you could probably get in there with the likes of grip royal, fuku, and all the other little parts manufacturers that have been popping up as of late. that said you didn't name a price, and you are targeting a slim market of people who have already shell'd out for hasports, now you want them to spend more. so it's really hard to say. but i'd love to have an engine mount that didn't produce the annoying rattling mine will at idle with the a/c on (all 5 factory with energy inserts).

i'm still interested in your design and how it'd actually account for the ever-changing harmonics whilst being able to avoid deflection, as it'd have to do both near flawlessly to justify any additional cost over aftermarket mounts or the oem ones i kick around the garage.

and what chassis anyway? the ef in your avatar? with a b series? or what? that's going to make a HUGE difference in potential sales.

 

The mount design is universal; That is, ANYBODY with a Hasport mount should be able to use my design, regardless of their chassis. The initial "push" for me to look into this is indeed a B-series into an EF.

My mounts will not prevent deflection, nor do I claim them to. The Hasport bushing will still be the best at that, as they offer little to no deflection at low frequencies. My design will be a compromise between OEM and Hasport: some deflection for reduced vibration at idle (like OEM, but less deflection) and increased rigidity (reduced deflection, like Hasport). But, since mine will allow some deflection, the level of vibration at low frequencies will be reduced when compared to the solid Hasport bushing. But, it will probably be slightly increased over OEM, but not nearly as much as the Hasport design.

As far as price... I didn't want to divulge that information yet. As I am still receiving quotes from manufactures, and dependent upon those, that will determine pricing. The molds are the expensive part. At this point, I'm guessing somewhere in the $100-ish range for a set of (3). And that's me not making any profit, just helping to cover the cost of the molds and production. I am considering having some type of life-time warranty, though. I know [most] people are cheap, with the way the economy is sitting. I would be curious to hear possible price points, prices people are interested in paying, though.

 

I would definitely be interested in purchasing a set of your replacement hasport bushings. I hope you will be perseverant with this endeavour so I can have a set in my hands within the next couple of months.

 

What was the end result of this? Did you produce the inserts? We're you successful in reducing low engine speed vibration? I too would be interested in purchasing.