Thread: Octotat Sub-Frame Connector interest....

Possibly so. However, before you and I start assuming anything about Mr. Kojima's opinion, perhaps we should wait and hope he chimes in.

Further, Superblackz also wants a set of frame rails, and I *believe* he even posted a picture of one for another chassis. I have been searching since my last post, just to find more smart guys to disagree with you.


That would be ideal.




I don't know if that answers your questions or not gentlemen.

Further, this is an "interest" thread.

Those current pictures are not the final product, those are a mock-up.


I am sure Chuck will check this thread, even if someone has to PM him....

b13 or b14 or both ?

Chuck is showing a preliminary mock-up on a B13.

However, if there is enough interest, who knows what he might build?

Does this mean you are interested in two (2) sets?

Assuming all the details are worked out, and the design is approved and finalized...an actual price is set...we have enough folks to justify a GB.....blah, blah, blah....

That sounds a lot more like a proper sub frame brace. The effectiveness of which I still have misgivings about, but I retract my previous statements as I wasn't looking at the complete vision. If people want to talk about the effectiveness of a proper sub frame brace then I'll leave it up to someone else to ask in another thread.

Ahem...you gotta read the entire thread. Not just look at the pretty pictures. .....


You may have misgivings sir, Mike Kojima thinks this...

Here I am debating by quotes alone.

Ben you (and the rest of you engineering-Brainiacs) need to address your concerns with Chuck (and Mike if he chimes in) if you are interested in the product.

You guys already qualified as interested the second you responded to this thread.

I am interested in what all the qualified forum techno-geeks think, because I am not the least bit qualified to evaluate a bracing product myself.

However, let's not bash the product while it is a mere mock-up, with a corresponding Interest Thread, and before the design is complete or finalized.

Shawn B

i would be interested in a set for b14

god, you guys are nuts

first off this is a "design study" more for my personal amusment than public consumption.

i think shawn got a little excited that someone might create another part to further his quest for the stiffest car ever.

i think we all can agree none of us have measured a b13 chassis dynamically on a racetrack for chassis flex.
so some think these will make a difference, some don't think they will.

as far as theory goes, i believe anything that stregthens the chassis helps the suspension. if these only helped during hard braking going into a turn.... oh wait a minute, isn't that when the chassis and suspension will be under the most stress? and need any little bit of help they can get?

and what is wrong with a ladder frame?



i happen to think the strongest places in the chassis are the firewall, seatbelt mount points and the suspension mount points. this has me believing if you tied them together you might make the chassis stronger/stiffer.

my initial goal when i started this project was just to tie the front suspension to the rear suspension. in fact in the 3rd picture the bar on top is my first idea. it satisfied the goal and introduced another - to be a bolt in affair. which it really should be since my company is "bolt in bars". i didn't like the way the front mount had to go out so far to get to the pickup point or the way it accually mounted sandwhiched between the subframe and the body. so after spending a lot of time looking at it, i designed a way to use the rear bushing mount of the front suspension and run it to the back.

to call that "frame rail" a frame rail is really stretching it. it kinda makes its way to the front bushing mount and ends at the rear seat step. the floor is maybe 22ga sheetmetal (i can easily punch through it with a blunt screwdriver and hand pressure). i don't know how thick the miata floors are but i doubt securing eight 1/4" bolts through our floors would constitute secure mounting. but the beauty of our "rails" is there is a little plug in the floor that when removed gives you access to the inside of them. by using a strap with nuts welded to it and slid up the rail... you now have secure mounting points.

so now you have a bar attached at the front and middle, we just bring it back and clamshell the rear transverse mount for the end.

wahla about as real subframe connector as we can get in our cars.

now i have more ideas to add a few more tabs for future upgrades but the concept needs to be felt out to this point before i continue.

thanks
-chuck

I just assume the "bashing" take place during the planning stage and not afterward? No?

Chuck, I didn't realize this was something you'd created for yourself and basically for yourself only. I wouldn't have said anything if it weren't presented as a possible product for sale.

Chuck, after reading your explanation I can only say I believe your attempts at stiffening the chassis in that way are superfluous. If you don't care to discuss it, that's fine.

- Approximately how much does/will each bar weigh?