This, if the driveshaft used in the S-197 is the same one used in previous cars (sans trans specific ends) it'll hold up well. I've run 11's and gone well past 155 mph in my car with the stock steel driveshaft.


With me in the car it weighs over 4,000 pounds.

 

Thanks bob. This is the kind of data I'm looking for. You have a stock 09 Shelby? What power are you putting down?

 

Not stock, been through a coupla rounds of bolt-ons.


550 rwhp when I ran 11's on a 305/40R18 Nito NT05R, will find out on the 21st with the Whipple and full exhaust on the car. Should be someplace north of 600 rwhp with the 3.25 pulley on the blower now.

 

You should exceed 600. Probably closer to 650-700 range.

 

Forget about the CAI but the tune alone should beat the benefits of a DS. Road racing I could see the benefits of a lightweight DS just because of the constant acceleration/deceleration but any other use I don't see the worth. I'm still a fan of $$$/more power.

 

Very nice guys. What are your guys' thoughts on what I'm putting down with my setup? From research I've done, and looking at other similar setups, and talking to good tuners, they say 525 - 550 whp for me. I wanted to put her on the dyno a couple months ago, but the dynos were packed... Hopefully this spring.

Also, what's your guess with my 1/4? 11.6? 12.2??? 305 nitto nt555r drag radials

 

The GT500 and the GT/Boss uses different driveshafts but I have to agree, I have done a tick over 156 in my car on numerous occasions and so far it has held up pretty well.
Not when CAI & Tunes have shown little to no improvement over a tune and stock CAI setup. Not to mention if the rule of rotational to unsprung (4:1) is true then a 20lb. difference in the driveshaft would be roughly equivalent to an 80lb drop in unsprung weight. I have yet to see a CAI & Tune drop .10-.20 off your times.

 

It's really just up to your driving skills. I've seen less modded/less hp cars into the 10's. 11.5 on DR's is a good time. On slicks it should do even better. All depends on your set up. I met up with a guy not long ago. 12 GT auto. Lots of suspension work, tune, slicks, 100 shot, runs 10's all day long.

 

If you can't drop one or two tenths off a 1/4 mile time with a tune, you got a really crappy tune. If you're talking about a road course, you got the wrong tune. I'm not saying a DS won't help but it just doesn't make good logic unless you are already maxed out with everything else.

 

Tru'dat, that was my first 11 second run and the car hooked pretty good, so much I thought I had broke something and let out of it.


When I got to the end of the track and collected my ticket and went back to the pits. My friend (a big bow tie fanatic) told me it ran 11's and sure enough it did.


I forgot who it was, but essentially the same combination on slicks would go low 11's


I would think low 11's at least, your car has more aggressive gearing in the rear and the trans plus its lighter.

 

don't worry about the limits, honey bunches, it's not like you drive the car anyway. *cough* wuss */cough*

 

Ha ha, ouch, burn.

After that comment this sounds like a bit much but...

The driveshaft loop is for safety and should be installed just behind the trans. Should the shaft break at speed, it will keep it from digging into the ground and flipping your car...and ruining your day. Most shaft failures I've seen happen at launch. In that case, the loop may help keep it from beating up your floor and the road.

While shopping for loops check out scatter shields or scatter blankets. That is a safety device used to help contain a clutch explosion. Since your adding some wider tires along with that blower, you may discover the limits of your clutch some day (when all the other weak stuff breaks).

I know clutch explosions are rare but I use them on manual trans cars when I reach or exceed 550 hp because I want to keep all my legs. And, I've seen them actually work on less powerful cars than yours!

 

If that's the case Al, maybe I will be in the 13s... Lol

Yeah I was thinking about someday going to the track and trying my skills there, whether it be on slicks etc... But with my luck, that's when I'd blow stock stuff up

If a bow tie lover told you your times, maybe you should double check that again... You probably ran in the 10s. Lol

Seriously tho, I'd be happy with low 11s... Now I just need to work on driving skills.

I know, right??? Why am I even worrying about the question I posed on this thread if I rarely drive her

In all fairness, I was just wondering *if* I got the urge to once in a while aggressively step on the gas, and actually hook, would I have to stop the car a few hundred feet later, and embarrassingly have to pick up pieces of my clutch or driveshaft.

That's interesting. Sounds like a lot of bad things can happen. Hopefully the chances of that happening to me/my car are pretty low??? (Given fact that I don't really hard launch much, don't track, don't road course... Etc. just the occasional romping)

Would it be fair to say that a ROLLING (versus a standstill) launch is much safer and less wear and tear on my stock parts??? Has to be... I would think

 

I rarely broke when going from a roll and always preferred running that way on the street. But when I pushed the left and right pedals to the floor and let the left one go, I would usually find my weakest parts.

You know you're gonna do it!

Only this one time...just a little bit...come on sweetie...that's all I want...BOOM!