In short, yes. In stock form you don't get to use all of 4th. Add a lot of power and 1st gear is retarded.

 

Stock C6ZO6's in fact have trapped up to 127 (the 128 trap is a fairly recent run) stock (yes, including the tires). You should learn about track location & conditions before calling someone a liar.

Top 12, Stock including tires;

1----10.981 @ 128.90--1.77---jamie furman ------'06. Details
2----11.138 @ 127.20--1.76---Ranger------'06. Details
3----11.242 @ 122.38--1.68---Dr.Ron------'06. Details
4----11.311 @ 122.89--1.80---BLU-BY-U------'06. Details
5----11.349 @ 124.97--1.75---zosix427-----'06. Details
6----11.450 @ 125.92--1.88---dgdoc------'06. Details
7----11.502 @ 126.08--1.96---C5 Frank-----'06. Details
8----11.545 @ 123.16--1.83---dpracing-----'07 Details
9----11.560 @ 124.53--1.85---Zlicious-----'06. Details
10---11.627 @ 121.67--1.83---BLK BZT-----'06 Details
11---11.632 @ 123.43--1.96---Z06kait -----'07 Details
12---11.709 @ 121.41--1.86---JWGJR------'07 Details

The two fastest traps/times were recorded at MIR.

http://forums.corvetteforum.com/show...78&postcount=2

 

+1 to that

that's a key reason why the Z06 can have such a tall first gear is because it has a huge engine that generates huge tq right at idle without having to spool up turbos - which starts happening around 1800-2000 rpms at the earliest. You can preload the turbos, but you're just going to risk breaking axles with such a short 1st gear and huge power. This is assuming slicks actually will hook you up. I haven't seen many people really do the big tire slicks on a Z - just a few race cars


I've been saying this forever, but the Z just wasn't made as a drag racing platform. People do it anyway with the 6 speed and get decent times, but nothing really special IMO in the grand scheme of 1/4 mile times unless they really orient their car for drag racing. The biggest issue is the engine and transmission and having all the extra shifts. Having all those gears isn't a big deal on something like a road course though when you can shift when you're braking. The Z06's 6 speed will get you to 150mph in 4th gear. 5th and 6th are overdrive gears that are just about never used in racing

When Jeremy from Performance Factory put a TH400 3 speed auto transmission on his car, he instantly gained like .5-.8 seconds in the 1/4 mile. He was able to preload the turbos by reving high while the left foot was holding the brake. Then BAM and he could launch with a tall first gear ratio and only have 2 shifts along with lightning fast shifts. With a small engine, I'd also think automatics would have a smoother engagement into a tall 1st gear than if you try using a tall 1st gear in a manual

 

You guys have some pretty steep gearing (which would be good for racing) but just don't have the torque down low to move the weight... I guess that's one minor negative for having a Hi-Po V6 (one of very few) with small displacement. You still do very well for what you have...especially if you look at the Mustang compared to you.

 

the c6zo6 has the weight, torque and gearing to get there times.

I was going to swap a 3.3 in mine before i pulled the blower off. I was having to hit 5th gear in my car.

 

cars with above mods are also running high 11s. It is comletely dependant on the driver.

things to consider:
modded Z06 is 3100 pounds (said 10 second c5s probably have a CCW drag pack or bogarts which are even lighter than stock magnesium 17s and 18s)
Z06 has different 1st gear than reg. c5 its well balanced for better 60' and even gear ratios.
No transmission is setu for Drag from the factory, but final drive ratio can be changed to make it ideal. I.E. tossing 3.90-4.30s depending on rwhp/trap and powerband in z06.

HC z06s are actually alot more common than turbo 350zs so you have alot more cases to look at statistically speaking. Hell, I can name 5-10 local friends first hand who have had or have HCI C5s. I can hardly do that for full bolton Zs let alone Turboed ones

A 350z is not light to begin with and adding twin turbos and an intercooler to get it to 450rwhp wont help its case.

 

yeah IMO the vette really is a better platform for being well rounded. It has all the right ingredients to do well at just about everything with just a few tweaks

the Z IMO is more oriented for road course, autox, and drifting, and it's cheap in comparison, but falls short at drag racing when the platform is pushed far without orienting it completely for drag racing.

I mean, being stock or close to it the Z holds it's own pretty well for what it is with drag racing, but the gearbox and it's overall design are going to have to be addressed at some point to really make a good drag racer out of it with a lot of power. So far, I've seen a lot of high whp Z's, even with good drivers and drag radials go all over the place down the 1/4 the first 80-100mph before they could finally hook the tires up. Those are just plain unbalanced cars IMO and why turbo Z's have a reputation for doing so much highway racing. Maybe we'll see some more AWD Z conversions... I can see the 300 lb weight penalty being worth it for the big whp cars.

otherwise the guys with huge turbos and more lag have an easier time it seems since 1st gear probably goes by too fast to fully spool up the big turbos and by the time you get to a gear that does fully spool them up, you're already going 80+mph. Thats a pretty good compromise IMO if you can put up with the lag

 

Thank you for helping prove my point. I am aware of this list and the DA at MIR attributing to the high traps of these TWO outliers. I think it's clear that 121-124 is most typical (and all we're seeing are the top of the bell curve, not the middle or other end).

 

I believe I misunderstood what you meant by the word, "outlier". I know what you are trying to say now...

For the record, the DA for the day of the 128 trap as around -1200 feet or so.

 

yeah lol, we should all say we can run a full second faster in the 1/4 mile.....if we run at -1200 ft

 

Gotcha. Yeah, "outlier" /=/ "outright liar". Sacramento is typically a 100 feet or so given the DA, while Sears Point is a bit higher I believe.

 

Okay, I didn't misunderstand you then. I do know for a fact the 127 trap by Ranger is an NHRA verified time. It is not a lie and the time/trap indicated is what occurred. His vehicle was bone stock down to the tires as well for that time.

Most drivers across the country, however, will never see a stock trap speed of 127 though in a C6ZO6, I believe.

 

still not a big deal though - are any of us really shocked a Z06 can do 127mph trap at minus 1200 ft?

we've got stock 07 Z's now doing 13.2's at 107mph without -1200 ft elevation. Not bad for a 150 lb heavier car with almost half the hp

but the thing is, the stock Z is balanced and the traction and gear ratios work well with the power it has

 

I'd tend to believe the '07 13.2@107 was also run at a negative DA.

 

Hmm. Two base 07s both with ~107mph traps. https://my350z.com/forum/drag/233840-top-25-1-4-mile-times-for-tt-st-supercharger-nitrous-bolt-ons-stock.html

Too bad the slips aren't readily accessible, we could probably look up the DA for that track on that day to confirm.

 

I have driven an ASP prepped C-5 Z06 on a mile-long, open course. I have also driven two different FI Z's under the same conditions at the same venue. The APS TT Z (SM-2 prepped, 500+WHP) with JIC's and 315 racing tires (slicks) could't hook up as well as the C5-Z06. (with approx 480 Crank HP) Not even close. The Z06 was cartoonish in the way it moved. -Fastest car I have ever driven. Hands down. I still think the APS Z could have been prepped better, but I have my doubts about it ever getting to the level of that Z06.

I have also driven a C-6 Z06 on course, but that was a bone-stock example on stock (run-flats, IIRC) tires. -Can't compare it to prepped cars.

Oh, and I never had to come out of second in the Z06. On the same course, my Z stayed in third.

 

What sort of mods can you have for the ASP prepped class?

so many people get a FI kit and even with 315's suddenly think their car is ready for the track even though they'll only be able to run 2 laps before overheating the brakes or engine or whatever

 

I just checked my 2006 (old) rule book. There is a lot. body work, suspension, wheels/tires, engine and drive train are all very open. (you can't go FI with an N/A car though.

 

yeah, you really don't even need FI for a vette though. They can make monster power with the right breathing mods/heads/cams etc

 

In the end... Torque wins races.... hahhahahahhahahaaha