Yah yah, make fun of me. Setting the car up for roll racing. Since local drag strips are too strict, and there is no other way to use a high HP vette around here, time to have fun roll racing. The 1/2 mile airport event was a blast, and with them doing 2-3 a year, that is what I'll use the car for. Going into the weekend I was going to decide to keep the car or sell it, because there is no way to use it out here. Well that changed, so if I can race it at the airport a few times a year, might as well keep it. Daily driving it to work was getting pointless, since you can't get on it. Was going to sell it and get a GT350, but with as much fun as the roll race was, I'll keep it and have fun.

So how do I do best at events like this? No prep, traction limited. So hooking up is the next step. 2nd gear was near useless at 900rwhp with 325 15 ET streets are 20psi. Got plenty of power on tape (backed timing down to lower power to try to hook).

Ideas I have
Coilovers or suspension. Get it to squat better.
Tire pressure.
New tires if MT comes out with better ones.

Other more lofty ideas
Gear based or speed based power. Was thinking of using DSX Flex time box with LPE speed based trigger to switch timing from something like ~8 degrees in 2nd gear to 15 degrees when I hit 3rd.
Wastegate it and do speed based boost control.
Proefi/Haltech/etc

Suspension setup now is DRM bilsteins, no front sway, zr1 rear. 225 fronts, 325 ET streets rear.

So, help me out. How do I go faster in a 40mph rolling 1/2 mile.

 

Will they let you do a burnout at the venue you're running at? I think that would be step one.

Might also be worth contacting the organization that puts on these events and ask about them hiring a street sweeper to clean the runway on race days. They started doing that at the events I run at a few events ago. I'm sure everyone would appreciate that, not just RWD guys.

That's about all I got. Oh, and it doesn't help your traction problem, but I'd also recommend ZR1 overdrive gears. Should make the car quicker on the big end.

 

Yah, for now I'm barely hitting 5th, so the cost of that wouldn't really be there.

They had a small dry area where you could spin tires, but not a burn out area, and it was tough to do a good one. Plus 3/4 of the time I wouldn't do it because there was a 300k+ car behind me and I didn't want to throw crap all over them. Basically you could do a small burnout in line right before going.

I don't have any control over those two suggestions, so while good ones, I can't control the events.

 

The roll racing deal sounds pretty cool to me! I would definitely be interested if we had one local.

 

Yeah, I know. But if you get enough guys that want the same, they might accommodate you.

Kinda surprising about you saying you barely use 5th gear, though. Even at a little over 700 whp, I was in 5th for what felt like quite a while. I felt like the ZR1 overdrive 5th helped my car quite a bit. Maybe not worth the cost, though. I destroyed my trans, so made the changes during the rebuild.

 

I would give Ridetech a call for a set of coilovers.

Eric at Haltech a call, they offer a plug and play harness for the C6. Boost by speed, Traction control, and no lift shifting is always nice...

I think both those would help you out quite a bit.

 

4th gear was topping out ~173mph on limiter, so the 1-2 times I shifted to 5th was when I did 177ish.

Maybe it is the big tires, they are taller than stock, and limiter was ~7200ish. Not sure what your setup is.

 

bump your limiter and pull 4th to 7600

 

Don't say that in the z06 section. Hell, they would flip **** seeing solid SS valves going to 7200 let alone 7600.

 

 

The ET Street is ok, but there's a more aggressive tire option... I think it's the Pro or X275 Pro. They also released a new tire at SEMA that looks similar stickiness.

 

Offtopic, but why don't you guys rent a small(er) airport from time to time? Just for a hour or two, to run full mile as well. Not really a need for a full timing hardware at all.

Maybe not possible where you're located, though.

How's your exhaust temps at 8 degrees during WOT?

Of course it's just a fragment of time while doing that, but anyway. And no cats anymore, I guess.

Or maybe just an aftermarket traction controller, such as this:

http://www.racelogic.co.uk/index.php...action-control

 

Try the M&H racemasters if they make a 15" or always move to a different mickey.

 

This is a small airport, and runway is only 5200ft so a mile would not be possible.

Never ran below 11, and probably wouldn't try 8. May try putting torque management on in 2nd and limit torque that way. See how that works.

Not sure anyone has ever got a racelogic to work on an LS platform.

 

I guess the Texas invitational has spoiled me... @ 60 mph i dead hooked on my Mickeys at just below 1300 rwhp mashing the gas

tell your events to suck less and be more like Ti

 

I guess so. Otherwise you'd been slower than him/her. :-)

It would be nice to see the comparison between aftermarket ECUs traction management performance. But I doubt we'll see that anytime soon.

 

Ok, I'll them up and say "suck less, be more like Texas". I don't know if that will work.

 

Parker (TwoSnails), IIRC, says he can hook all gear now with traction control feature in ProEFI, on his TT Z06. I think he's well above 1100+ RWHP as well. Maybe PM him for details.


And, I agree on the drag strip stuff. If they won't let people run in a safe, controlled environment, roll racing is going to be the end result.....both legal AND illegal types.

 

I wonder how the aftermarket TC work. I hook better on the street than the runway. So do you have to dial it in for each surface or does it automatically do that?

Technically your not hooking 1100rwhp with traction control, just lowering power to a level that does hook. I rather work on doing everything to hook the best possible.

Not doing a proefi. Looked into it, talked to a few people who had them, no thanks. I rather spin a bit than mess with that.

 

I have been fighting with me car for few years now. I using QA1 front and rear and MT ET STREET PRO P275/60R15. I was finally starting to get some traction be put front QA1 in 90-10 position in the front and rear in pos 2 which is soft and live air in the tire at no more than 16 psi. Height of the car in the rear quite low as well but not too low. Whit this I hook quit well in 2 gear ( only little spin ) and dead hook in 3 gear. This is at 800+ RWHP (10 psi of boost) based on trap speed at the ¼ which is the only way for me to estimate HP. Next think I plan to do is to install AMS2000 with CO2 and speed sensor at the front wheel and set it up for boost for speed. That is less money than changing the pcm and will most likely help with getting traction to the ground.