Chassis Stiffening Allowed Under SCCA Ruleset

[markus]

OK

So I'm trying to get more familiar with the SCCA ruleset and eventually get my car steered towards being a better prepped SM car. My question is specifically about subframe connectors.

Section 16.1.G under Street Modified rules refers to Street Prepared Section 15.2.E and I am curious if the following braces in the link are in violation of the ruleset?

Thoughts?
http://iagperformance.com/shopping_cart/proddetail.php?prod=GTS-SUS-1092

[soccer_freak]

Not that I'm an expert or anything but my translation of the rules is thus:

a. the brace may only be from the front of the car to the rear
b. the brace must only mount in 3 points (Front, rear, and center)
c. the brace cannot be a left-to-right brace


Based on those interpretations of the rule set referred to I would extrapolate that the items linked to are not legal for SP or SM.

Again, my interpretation only.

[leftme]

15.2.E. Longitudinal (fore-aft) subframe connectors (“SFCs”) are permitted
with the following restrictions:
1. They must only connect previously unconnected boxed frame
rails on unibody vehicles.
2. Each SFC must attach at no more than three points on the
unibody (e.g. front, rear, and one point in between such as a
seat mount brace or rocker box brace).
3. SFCs must be bolted or welded, but welding must be to the
OE subframe stampings, not to the floor pan in between.
4. No cutting of OE subframes or floorpan stampings is permitted.
Drilling is permitted for mounting bolts only.
5. No cross-car/lateral/triangulated connections directly between
the driver’s side and passenger’s side SFCs are permitted.
Connections to OE components such as tunnel braces or
closure panels via bolts are allowed and count as the third
point of attachment. No alteration to the OE components is
permitted.
6. SFCs may not be used to attach other components (including
but not limited to torque arm front mounts or driveshaft
loops) and may serve no other purpose.

Here's the rule in question.

[markus]

Again, my interpretation only.

Ya, i'm reading it the same way. Drat!

[markus]

Think this would be fair game??

http://iagperformance.com/shopping_cart/proddetail.php?prod=GTS-SUS-1091

[Fivendime]

Don't think so.....it's not connecting the subframe, just stiffening the chassis. There may be another clause that allows it, but I doubt it.

May I suggest this......http://www.slim-fast.com/

It prevents chassis flex in it's own special way!

[GrantC]

It prevents chassis flex in it's own special way!

I hear it makes Karts more powerful too!

[markus]

May I suggest this......http://www.slim-fast.com/

It prevents chassis flex in it's own special way!

[markus]

I hear it makes Karts more powerful too!

Thus speaks the skinny bastard!!!!

Not to be confused with the fat basford!

[Fivendime]

You could do lower strut bars (15.2.C) from suspension mounting points, front and rear. It doesn't limit it to just upper or lower. You could then tie the front and rear strut bars to the longitudinal bars. Note that you can triangulate them but not directly from left to right side. You could build them in such a way that you would gain a huge amount of rigidity with them!

[Fivendime]

And if you put a bolt in cage in the car, you could tie into the hoop behind the seats as the mid mounting point.....it would be wicked stiff then!

[Tracker]

it would be wicked stiff then!

Or you can pop some blue pills in your gas tank...

[markus]

You could do lower strut bars (15.2.C) from suspension mounting points, front and rear. It doesn't limit it to just upper or lower. You could then tie the front and rear strut bars to the longitudinal bars. Note that you can triangulate them but not directly from left to right side. You could build them in such a way that you would gain a huge amount of rigidity with them!

See, this is the kind of wicked, devious & clever input I was hoping for. Thus I concede the vast gap that still exists between the silly ideas in my head and your practical knowledge.

Thanks Ian.

[markus]

Taking Ian's idea further ....

I'm thinkg the "triangluated" part of this may not be kosher????
http://iagperformance.com/shopping_cart/proddetail.php?prod=GTS-SUS-1133

This looks like it would be easily approved???
http://iagperformance.com/shopping_cart/proddetail.php?prod=KSB716