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Originally Posted by Sven59
Thanks,
I PM'd it to Norm. That looks correct. I am waiting for a reply from Scotty to see where he got it, it isn't referenced on his site. It probably makes sense though.
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Finally managed to get there (C5 wouldn't even PM the fully spelled out address).
Quote:
Originally Posted by Fraxum
One would hope the Z/28 could withstand a few hard launches.
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If it's a fatigue issue rather than an outright overstress situation it'll likely withstand a few. But that's still a matter of 'when' rather than 'if'.
Side note - I hope that anybody considering running a Z/28 at SCCA's "Pro-Solo" (a real drag race start down a short straight into a conventional autocross) or at the Optima Challenge "Speed-Stop-Squared" event (similar, with a shorter autocross segment plus a stop box at the end) finds a starting line technique that's as quick as possible while being as gentle on the mechanicals as possible. But at least the starting lines won't be prepped for grip other than by however much rubber gets laid down over the course of an event.
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The Z/28 front sway bar might be thicker than both the ZL1 and the beefier 1LE bar. This is good for lots of spinning at the lights, not hooking. So I would say the drive train is pretty safe. The tires are grippy I am sure, but not as tied down as drag radials.
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Front and rear bar stiffnesses do not much matter on an IRS car. There isn't much chassis roll from engine torque reaction going on that isn't taken directly back to the rear differential, so there really isn't very much left for the bars to either do or get in the way of. It is a lot different than on a stick axle car like mine where a no-front-bar/huge-rear-bar configuration can be a worthwhile setup for the strip.
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And I apologize for generalizing about road track focused people. I have only met a few. From what several of you have posted I stand corrected about ALL track focused enthusiasts looking down on drag racing. However just like Camaro V8 owners slamming V6 owners the impression might be common, just not universal. Kudos to those not judging! Respect. And here I am judging. 
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No offense taken.
It's probably too easy for enthusiasts of either road course or drag racing to misunderstand the other activity, at least on the surface. From the stands, drag racing looks and sounds harsh and abusive, while a quick lap on a road course or even at autocross commonly looks "too gentle" to qualify as a serious effort, let alone be any good. Many of the mods that work well for one activity are exactly the wrong things to do for the other, and some of the few in-detail mods that actually beneficial for both sports are rarely recognized as such (let alone with any understanding of why they might be).
Norm