Wow that's awesome Yeah, we are pretty limited here with one track open every other weekend and one open Wednesdays and weekend but like I said most of those are event nights. What can ya do

 

Gtechs are great tools. I have tested mine , the old gtech, the new ss/rr model and the ipod dyno program AT my local track and they are all dead on within a tenth of the actual track et. the mph is usually 1-3 mph higher. where they can be very innacurate is on real roads. real roads have slight curves, inclines or declines or elevation changes and all those throw off the gtech slightly.

My advice is to think very precisely what you are doing when you go into 2nd. Are you pwershifting? while I don't do it if you are spinning 2nd dont powershift 2nd. My advice is to sit and practice this in your driveway with the car off: shift from 1st to 2nd and only when the clutch is FULLY disengaged nail the throttle.
many people dont power shift but still get the timing wrong and hit the throttle just before the clutch is disengaged and still shocking the drivetrain = tirespin.

If you are still spinning 2nd, practice going wot with a slight hesitation with the throttle pedal. like a slight pause halfway. all you are trying to do is not shock the driveline with full throttle.

ive had some practice while tuning some stroker vipers throttle modulation takes a little practice.

 

Good tips. Thanks. I've since read up on technique and with some practice and 26lbs in my tires, I'm getting a little better hookup on the 1-2 shift.

Honestly I had no idea that the car would be this fast. I'm very happy with how it's running. Now I just need some better tires.


PS. I never ever powershift.

 

With your mods the crank HP is 375-380 MAX.

Track times will be a low 13 high 12 at best. Not gonna see anything close to 11.9xxx

 

I enjoy your nay-saying. It's great.


For the record I made 8 passes on the same level road going back and forth each way.

Best time was 12.1 @ 119 Mph 1.96 60' lowered pressures to 25lbs in the rears. Nice day with good Air.

The only low 13 second run I have ever made was missing the 1-2 shift and I still ran 13.2 @ 111 MPH.

I wish it was the G-Tech RR instead of the SS...I'd upload the files for reference. It's a really neat tool, on the 13.2 run you can actually see the missed shift in the rpm graph...what a neat little tool.

 

Sorry. Stating FACT is not nay-saying.

The G-tech is great for gauging improvements in performance.

So yes if you do a mod and improve 2/10ths you know you are on the right track.

C5 non ZO6s run mid 13s with a good driver. That is still very fast for a street car. ZO6s low 13s to high 12s

Your mods will give you max 25 rwhp with a good dyno tune. So that will get you to maybe 325 rwhp.

325 rwhp will not get you a 12.xxx unless the stars are aligned perfectly in your favor and you need 450+ to have a chance of seeing a 11.xxx

 

354 RWHP... See sig.

 

Maybe in Nevada,

I'm 800 ft above sea level and live on the coast...Z06's here run 11's all day long in good weather.

 

Not Stock on street tires unless the track is downhill.

On the ZO6 Fast List there are a grand total of 6 stock ZO6 Street Tire Vettes that have seen an 11.xxx These guys are also the top 6 Speed Vette drivers around with lots and lots of seat time.

Theses guys are getting 1.9 and less 60' times

Ranger ( the proven best Vette Driver in the Country) did 11.78 stock with a 1.78 60' and a 11.52 with a 1.64 60'

So for guys running "11s all day" either NOT Stock or

Until you have actually run at a track and have a slip to post up all you're doing is bench racing.

Take it out, run it and have a good time.

 

Kooks Headers/X-Pipe - no cats, Z06 Ti cat-back
UD pulley, BBK CAI, 4.10 gears, Hoosier drag radials

Thanks for proving my point. The gears are getting you a full second at least plus the DRs are good for another 1/2

You 60' is giving you the good ET and the 188 mph shows the 354 HP on the top end.

 

Basically I was questioning two of your statements...

And this

The OP's car is not stock...

No question the gears help my times - but not a full second.

Before the gears and headers - just Drag radials and Z06 cat-back, I was running 12.2xx in the summer heat.

My best on street tires was 12.81

But, back to the OP...

While your car is not stock, it is close to stock. Get on a track where it is safe and legal.

run a high 12, get some drag radials and run mid 12s.

 

A full second from gears? Half a second from drag radials? What are you smoking?

I went 12.88 w/ 333rwhp and 12 passes ever at the track on a bad 1.97 60'. With practice I am sure I could have gone into the mid/low 12s as is, stock gears and street tires.

450+ for a chance at 11s? I went 11.2s all day long w/ 419rwhp. The 447rwhp I have now will put me in the 10s.

 

You're not serious are you?

 

Maybe he thinks I am driving

 

GTech accuracy is highly dependent on
(1) flat racing surface. On the street, Gtech recommends two-way runs with results averaged.
(2) proper calibration that includes slip angle.

I've used a GTech at the drag strip to check such things as shift points and distance to shifts, effectiveness of throttle squeeze. It's a useful tool. Also good for checking obscure acceleration facts, such at G-force at 12 inches and duration to 12".

Anyway, here is a measured comparison of GTech to the track timer. Car is a stock C6Z on drag radials on a warm (not hot) day, DA=1500 feet. Difference between the times is minimal.



Once again, remember, flat terrain and proper calibration.

Ranger

 

So you knocked off .6 with the DRs Still not an 11.xxx? So maybe the gears only got you another .6. That gets you 1.2 which from a low 13 to a high 11. Did you have CAI and a tune also???

My point to the OP was and is maybe a high 12 No Way an 11.

Internet talk is easy show us some Time Slips.

If 11s are so easy with near stock..Why only 6 post in the ZO6 Fast Times?

And I would bet the top six have well over 500 runs together to get those slips.

I heard that Ranger has about 300 himself.

 

You said you need 450+ for 11s. Heres 11s with just bolt ons in an auto with 2.73 gears.

http://forums.corvetteforum.com/1567183252-post110.html

Thats 11s with a lot less than 450.

Heres another 11 in a 6 speed stock gears.

http://forums.corvetteforum.com/1568012410-post174.html

Still didn't even have headers on the car. With all the bolt ons he will be well into the 11s before he does gears. I think he was making somewhere in the high 320s-low330s for power, a lot less than 450.

 

You continue to prove my point that it is NOT easy to get 11.xxx in a near stock Vette.

 

I think your dumb

I think everyone else agrees.

Nobody said 11s in a stock COUPE/FRC is easy.

You clearly stated you need 450 to run 11s. I showed you 2 cars in the range of 320-330 that went 11s.

Forget stock/not stock, I'm talking the power it takes.

The FRC made 320-330 and still went 11s, you really think a z06 can't run 11s with 30 or so more rwhp?

How much do you think the drag pack and seat removal helped the FRC? You think it would have gone 13s without those 2 mods? Give me a break.

You also question a line lock like its even going to help his time. WTF?

Bottom line is your theory of "325 rwhp will not get you a 12.xxx unless the stars are aligned perfectly in your favor and you need 450+ to have a chance of seeing a 11.xxx" is in no way close to being accurate.

Not even close.

 

I'm confident in the results I've stated for 2 reasons.

1. I did back and forth runs on the same closed road and all runs were within 12.1(best) and 12.5(worst) That puts the average around 12.35 @116 overall

2. I have read alot about proper launch technique (rangeracceleration.com is a good place to start) and have been getting more and more consistent results.

3. I took the time to read up on the g-tech and to do the best job of setting it up I could.

4. We also tested the unit on my roomates Kawi 636 which ran 10.97 @ something or other. After that we treated it as accurate since it was in range with his Track Et...and he goes frequently.

I realize that the only way to generate 100% proven results is to run @ the track. Unfortunately it's 2 hrs driving to any of the 3 nearest tracks.

I also don't want to break things, so being able to do unlimited runs, with no waiting takes the pressure off permitting focus on the details(Ranger style details).

There have been alot of constructive comments here, again thanks guys.

@ Vegas Vette...after a quick search I've found many posts where you tell people that this mod or that mod won't net them anything, that there car isn't as fast as they say it is, and just general negative diatribe. I hope that you're just trying to be helpful...it just doesn't seem that way. You make statements which you call facts, but are in reality just your opinion. You must have personally oversaw the production of every LS1 engine since you claim to know exactly what every single stock c5 makes for power. I am in awe of you sir.

Anyways the G-tech has been returned, my car will be in storage again in 2 weeks, so it looks like I'll have to wait until next year. When the time comes I'll post up those results and see who comes outta the woodwork to support/refute them.



JC