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

???

i'm not sure what you want to dicuss

i believe the b13 would benifit from longitudial bracing, you don't.

without a way to comfrim or contradict these beliefs, we must go on faith.


i have to go on the experience and expertise of the last 100 years of auto racing that says stronger/stiffer is better


thanks
-chuck

Yes, a design study that I am particularly excited about. Other folks have discussed making these (Stephen and Truax), but no one has had a successful GB or still offers them for sale.

The Maxima guys, with the Truax peice, swear by them. No negative reviews, all positive feedback.


Damn skippy sir.

I replaced my Active Tuning 2-point with a BIB 3-point RSTB. Which I love.

Still saving money for an O.E.M. (Overkill Engineering Motorsports) 3-point FSTB to replace my Cusco 2-point. Unless I had another 3-point FSTB option from another vendor....

If it stiffens our chassis, I want it and will plunk down my money. My vehicle is night and day different from any other B13/14 that I have ever ridden in. Including mine before it's restoration.


Some of the folks that think sub-frame connectors will help are you, Mike K., Stephen (of Stephens Fender Braces) and Truax.

Truax threads on our forum(s):

http://www.sr20-forum.com/general-sr20/1125-b13-chassis-braces.html

http://www.sr20-forum.com/group-buys/1160-truax-motorsports-b13-chassis-brace.html

http://www.sr20forum.com/general-sr20/220036-chassis-brace-update.html

TruaxMotorsports has thirty-six (36) threads on Maxima.org and plenty of them are SFC threads for the different generation Maxima's.

http://forums.maxima.org/index.php

The Maxima guys give SFC's rave reviews. Nothing negative I could find.

Stephen's SFC thread:

http://www.sr20forum.com/suspension-chassis/217210-subframe-connectors.html


Hmmmmm....I have no access to the inside of my frame rails. There is two-part catalytic foam in 8 lb density (U.S. Composites) filling my frame rails, cross rail under the seats, and front rails. Not to mention 2 lb density foam (HandiFoam) in my A-B-C pillars and the roof surround channel.

As far as I know, I would be thee only person with this issue. Perhaps there will be another way, maybe welding, that these bars (if produced) could be properly secured to my vehicle.


Sorry if I jumped the gun Chuck, you posted "over yonder" and I did not yet know you were "back here" again. I look at the Suspension Sections nearly every day for anything new, informative or interesting. This possible-product scored on two (2) of my criteria.


Constructive criticism and intelligent design analysis are always a good thing.

However, some folks were criticizing the preliminary design, quote "these do little to nothing," and had not even bothered to read the entire thread(s). C'mon now....


Even if these were exclusively for Chuck and his vehicle, an intelligent engineering discussion is always relevant.


As a total layman, with zero engineering expertise, I cannot understand why bracing the vehicle side to side, front to back, and crossways is not (pretty much) always a good thing (?).


Call me a "Mike K Disciple" but if he wants sub-frame connectors, that is about all I really need to hear. If it is a good idea from a guy that has an engineering degree, works primarily on race cars, and is continuously hired as a Suspension Consultant to professional race and drift teams.... Then I am following right along behind him like a baby duck imprinted on a surrogate mother, and copying everything he does (that I can afford).

Assuming I can mount these things, if they are produced, to my foamed frame rails....

Eagerly awaiting further developments and information, while saving my cash.

Shawn B

Having driven many different makes/models. I can say that subframe connectors are QUITE popular amongst the domestic crowd. Granted we are talking RWD vs FWD but I installed a set of SFC's on my 91 mustang and was AMAZED at the amount of flex that it removed. It's common practice to get bolt-in sets bolt them in, and then weld them for additional support.

I was just going to mention their use among the domestic crowd... beat me to it Matt.

I'm with Shawn on this one... not being an engineer by education, maybe we're just missing it. From a practical experience level though, other than the weight penalty, I don't really see a negative here for chuck. "Limp Noodle" has often been used to describe our chassis stiffness.

For the rest of us, this is great news! Chuck has a proven track record of manufacturing top-notch products while supplying outstanding customer service. If he's experimenting with something new, then I'm very interested and supportive of his efforts. Hopefully his design study will yield a noticeable performance gain, and he'll decide to offer a new product. I just hope he offers one for the B14 crowd so I can purchase one too.

This piece will really help tie the front and rear of the car together, not only will it make the chassis more capable but it will improve driver feedback and control. If you picture a ladder like our chassis, the best improvement would be a frame perpendicular to the frame rails (roll cage) cross bracing and strengthening the frame rails will help significantly in torsion. But don't forget the chassis will see many different influences (forces) under dynamic load then just torsion.

I guess those who doubt it don't have to buy it. Those who don't can reap the benefits.

Dudeman

Interested.

The NX w/t-tops guys will definitely benefit from these.

With the tops off and the doors open, I often wondered what kept my old NX from bending in half.

If you make one for b14, I would be down.

If you have ever seen a car tripod (up on three wheels) that is what this would help to counteract. Since the front and rear are connected, it would force the rear back down on the ground as the front is still planted.

Make some for the p10 too

Actually, increasing the rigidity of the floor will make the car 'tripod' more under certain situations. For example, what happens during corner entry when you're transferring load to the outside front. Not that that's necessarily a bad thing with these cars.