ok i see some complaints about not enough information on 1/4 mile times and how they change with mods . So I decided to post mine .
For the record i am a very experienced driver and have drag raced dozens of corvettes over the years . I usaully end up besting posted 1/4 mile times seen in magazines for new corvettes .

With that said . My latest corvette an 05 black six speed has been the exception to the rule . But everyone here allready knows about that . I will just list my times so far .

Stock . apx. 600 miles on car with traction control off but not the active suspension ( did not know about that then )

several runs in the 13.10s one @ 13.03 @ 114 Dissapointed was expecting 12.6s like the magazines and chevrolet said.

few months later added the TQ / module from cartek and the vortex ram air from BPP . on an extremely humid day car ran several 12.8s and a best of 12.72 @ 117 Note : a friend with an 04 that typically turns 12.7 could not do better than 13.1 and felt it was the weather ( not sure about this )

I am now in the process of adding the fan controller , 160 thermostat and Kooks headers and cross pipe high flow cats . Will go back out to the track 6/5 and post my results .

other than the dissapointing time slip i love this car , huge improvements in every way . Traded in an 04 i only had a few months to get it . paid too much and still happy about it . The last crovette drag raced was a ZR-1 that turned 11.93 @ 119 that was last year .

 

Which 6-speed, standard or wide ratio (Z51)?

Were you able to feel any difference when you added the Cartek module, or is it too subtle for that?

114 doesn't sounds too bad to me, you're just not getting the same traction that the mags/GM got.

 

I have the standard 6 speed . We did the torque module and the ram air at the same time so its hard for me to say if you can feel the difference from just the module . but i could feel the difference after these mods were installed and especially at the shift points .

I agree the mph was right on and pretty impressive , it was the e.t. that dissapointed . The run flats are a problem .60' times when the car was stock were in the 2.2 range with an occasional 2.1 and after the torque module /ram air they dropped to low 2.0s . Drag radials would really make a difference but they do not make them in 19" from what i understand . I do still have a set of 17" drag radials mounted on ZR-1 rims but not willing to try those as yet . Will wait for the 19s to come out .

 

I've been studying options for sticky tires for my forthcoming C6Z06. I doubt we'll see a 19 inch DR for several years. I understand that MT is working on an 18" tire for the Viper and new Z but that wouldn't likely be available for another 12-18 months...at least.

You you might want to check out the 17" wheels/DR you have and see if they will clear the calipers and that the ofset will fit with no rubbing. An alternative is to go to BFG 315.30.18 on C5 Z06 rear wheels. On a average prepped track that set up will produce low 1.7X.

Just a thought.

Ranger

 

I am hoping we dont have to wait that long for 19s but you certainly could be right . Have you ever heard of anyone trying the front wheels of a C6 on the back ? they are 18s and then there are several choices . Would just need to pick up another set of front wheels for occsionla drag radial use.

I plan to buy a C6 Z06 as well . the only conisderation i have is Chevrolets service dept . My last service was ridiculous and not fitting of a 50K + car never mind an 80K plus car .

 

What about some C5 rear wheels? You could get some wagon wheels dirt cheap.

Impressive trap speed BTW.

 

You're trap speeds are great. Not sure why the times are off. I ran my car in pretty good conditions a few months ago, and turned a couple of 1.95's on a bone stock car. Best run was 12.499 at 114.9. Could be your track has poor traction (or mine had outstanding traction!) It would have been interesting if you had run with TC and AH off when it was stock. This seems to make a difference in some cases.

Thanks for posting.

 

The C6 fronts are 18 x 8.5. That is too narrow to run BFG 315.30.18. But that tire fits great on a C5 Z06 rear (18 x 10.5). Which should fit the C6 rear just fine.

The best tire for the C5 Z06 right now is the 17" MT ET Street Radial in 275.40.17. That tire fits comfortably on C5 Z06 fronts which are 9.5". But someone needs to test the offset and the clearance of that wheel on the C6 rear calipers.

Ranger

 

I had similar results a week ago. The car actually went SLOWER when I power-shifted it perfectly. I could definitely feel the torque management kick in between shifts, it was a frustrating night. To say I've got some drag racing experience would be a huge understatement. I probably make over 1000 passes per year, in all sorts of vehicles.

Keep in mind that I put my bone stock 99 Camaro SS (6-speed) into the 12.84 @ 104 range less than a month earlier than this. Camaros don't have torque management on 6-speeds.

http://www.ls1tech.com/forums/showthread.php?t=320513

 

Tony, I assume you had TC and AH off (I know how experienced you are). It's still a mystery why some cars do this and some don't. Mine does not at all.

 

Ron Zimmer at Z-industries takes the TM out when tuning. The first thing that I noticed is the lag between shifting went away,(among other things) plus the difference between rwhp and rwtq.
Give him a call.......Z-industries .com
After Kooks headers, Magnaflows, a 160 thermostat and the tuning, the car really came to life.

 

i went to the track a couple weeks ago and borrowed my friends 17 inch wagon wheels from a 97-99 corvette and had the bfg drag radials on them. it's a tight fit that comes close but they fit just fine. the only thing that you need to worry about when putting these on is at high speeds the traction control comes on from the different size tire on the back. to correct it i just took the traction control off when driving to the track and it drove perfect. I ran a 12.89 best @ 109 in a bone stock z 51 auto.

 

I'll bet your car does have it. I ran mine on a hot and humid day, without letting it cool down. Temps were above 200F except for the one pass where my mph was higher. If I had cut a good 60' time, my ET would have been in the 12.5-12.7 range. Even if it would have run those times, the torque management would still be there. I ordered the Cartek modules, so I'll get an honest stock vs stock comparison with those pieces on the car.

Temps over 200F killed my mph badly. Too bad the car stays above 200F with its current t-stat and fan settings.

Tony

 

Reread post 11

 

sorry guys but after review of my actual time slips i see i was off on my original mph posts . the e.t.s were correct ( all i really paid attention to ) and the improvement of 3-4 mph the second time we went to the track with the ram air and TQ module were correct but the first time we ran with the car bone stock we ran 110-111 mph and the second time ( a few months later ) we ran 114-115 .

Sorry about that !

Tg

 

Now that sounds about right. I have run high 11.7s @117 w 1.6-7 60ft times. Good luck on getting it going fast brother. After reading many of these C6 threads I might have to reconsider passing up a 02-03 ZO6 in favor of the C6. Man I really thought these things would produce mid twelves. I ran 13.1@111 completely stock in my C5 A4 coupe.

Cajun

 

My car was way over 200F on several runs (over 220 on some runs). If it has it, it has never shown it. I do agree that my ambient temps helped my times compared to a day like today, but the temps I ran in are what the correction factors factor to.

 

picked up car today after kooks headers and high flow cats were installed , also installed cartek fan controller and 160 thermostat .

The improvement is readily felt . Looking forward to seeing what it will do at the track . Allthough low end torque has improved substantially . Traction at the drag strip could be an even bigger problem .

I am very happy with the sound . I kept stock mufflers and during normal driving can hardly tell a difference maybe just a little throatier . But during WOT it sounds incredible . Also filled trans with GM syncro mesh and this clearly made shifting smoother . So far so good .

Car is now running 180 ( temp ) at normal highway speeds and rarely goes above 190 even after idling for a while with A.C. on and @ 90 degress here in sunny Florida

Will post track results

 

what is active suspension?
How to turn off? Is this only applicable to f55 package
I have base susp MN6
I will be going to track soon for 1/4mile
How many rpms for launching?

 

active handling and traction control. Just push that button on your console until you see the performance driving mode appear on your message screen on the dash.

rpm will vary depending on traction, which varies on your tires and the track conditions.