ZL1 vs GT500 This Friday.

[newmoon]

Originally Posted by GrabberB5.Slow

I don't know about mid 12s, seeing as he still only managed a 1.9 60' and ran an 11.6 . High 11s, low 12s on stock rubber.

If the best he could do is a 1.9 and 2.xxs 60' times with M/T drag radials, which is what most consider the very best non full slick, his stock tires would have been horrible, the car would have lit the tires through 1st and 2nd gears rusulting in a mid 12 second pass with a big mph. The owner knew this which is why he came with radials, no big secret here.

[Bob Cosby]

Originally Posted by newmoon

...The owner knew this which is why he came with radials, no big secret here.

You talked to him?

Good to have info directly from the horse's mouth, so to speak....

[04svtsnke]

Originally Posted by Bob Cosby

You talked to him?

Good to have info directly from the horse's mouth, so to speak....

This, I guess that guy and the driver of the gt500 must be BFF's and they must've talked about switching to drag radials before the race.

[Ron66Vette&10SS]

Originally Posted by mdmoore23

GM needs to recall every ZL1 for a pcm reflash........

I think they already did that during the mystery QC hold, but instead of doing it for the purpose of more performance, the purpose was to neuter it.

I'm convinced that the hold was due to a drivetrain reliability issue they discovered just before deliveries were scheduled to start. Their "fix" was to program in more torque management in order to lessen the the "shock" between shifts.

[newmoon]

Originally Posted by Bob Cosby

You talked to him?

Good to have info directly from the horse's mouth, so to speak....

Ok I will play the game. It is wrong for me to assume that the 500 owner did go to the trouble of mounting up the very best drag radial on the market in an effort to gain superior traction over the factory supplied tires.

[cbass]

There is something not right about the ZL1's. The PTM seems to be a failure as you end up with slower times with it on than off. The GT500 ends up running faster with the nannies on.

And ya the driver didn't have much experience, drag radials, blah blah blah. Those are all valid points, but the trap speeds coming out of the ZL1 are low and that is a red flag.

[GrabberB5.Slow]

Originally Posted by newmoon

If the best he could do is a 1.9 and 2.xxs 60' times with M/T drag radials, which is what most consider the very best non full slick, his stock tires would have been horrible, the car would have lit the tires through 1st and 2nd gears rusulting in a mid 12 second pass with a big mph. The owner knew this which is why he came with radials, no big secret here.

I know what your saying buddy but what I'm trying to say is if it was stock rubber it'd be around 12 flat if that. To run a mid 12 on stock rubber he'd have to run a 3.0 60' which I've never seen tire spin THAT bad.

[OLD_GOAT]

Originally Posted by bcwolf

I was invited to run at Atco Dragway with the GT500....both cars fully stock!

Follow the results here and wish me luck.

http://www.facebook.com/#!/events/244241742360736

This is the primary post of this thread and it states "both cars fully stock!"

IMHO, that doesn't mean drag radials on either car. To me that means showroom stock, just like it was bought.

Not that the GT500 having drag radials made any difference, but it's about the principle.

By the way, I agree with everything stated about the trap speed of the ZL1, something is very wrong.

[Bola1103]

that was drag radials

[C5RocksC5]

Originally Posted by Ron66Vette&10SS

I think they already did that during the mystery QC hold, but instead of doing it for the purpose of more performance, the purpose was to neuter it.

I'm convinced that the hold was due to a drivetrain reliability issue they discovered just before deliveries were scheduled to start. Their "fix" was to program in more torque management in order to lessen the the "shock" between shifts.

I suspect the same.

[avcbm]

Originally Posted by Ron66Vette&10SS

I think they already did that during the mystery QC hold, but instead of doing it for the purpose of more performance, the purpose was to neuter it.

I'm convinced that the hold was due to a drivetrain reliability issue they discovered just before deliveries were scheduled to start. Their "fix" was to program in more torque management in order to lessen the the "shock" between shifts.

I think you maybe right... I’m actually shocked with my ZL1… I never drag race, but I do like to get on it sometimes when I’m out driving…. The first time I drove the Z, I was thinking it was going to be a big difference than my SS, but it wasn’t. The first thing I notice is that it didn’t seem as quick to take off like my SS, but I could feel more pull in the Z if that makes since. So I followed the break in rules, and keep it down until I reached the 1500 mile mark, but today while out driving, I decided to try the PTM Mode 3 to see how it felt, to be honest to me it felt as if it was being held back, like it was dragging or not enough power, is this normal? I took it out of PTM Mode 3 and went back to Sport mode and that felt much faster and stronger. Is this normal, is anyone else feeling the same?

[9c1ny]

Originally Posted by Ron66Vette&10SS

I think they already did that during the mystery QC hold, but instead of doing it for the purpose of more performance, the purpose was to neuter it.

I'm convinced that the hold was due to a drivetrain reliability issue they discovered just before deliveries were scheduled to start. Their "fix" was to program in more torque management in order to lessen the the "shock" between shifts.

if that were true the cars would be beasts with a tune alone, they are not, good theory but I doubt the TM is any worse than on other GMs

[mlee]

Originally Posted by HpJunkie69

Holy bench racing batman!!

Those were NOT the drag radials youre thinking of.

Youre thinking of these.


He had these.


BIG difference, and even if he had the ones you thought they were i still wouldnt say he had the best dr. M&H makes a damn good tire for the track and IMO the Hoosier drag radials are the best.

Bottom line is even with the tires he had he only cut 1.9-2 sec short times. Which is horrible. Honestly he should have been able to cut that with stock rubber and launch control.

If he were to cut ONLY a 1.7 60 foot that car would have ran 11.2-11.4's!!! In the middle of summer! Bad ass if u ask me!

So you know kind of tires he was thinking... LMAO... Welcome back

Originally Posted by cam99

Truth is, the Shelby just out performs the ZL1. That's just the way it is, however what a douche the shelby guy is. Drag radials make a huge differance (not saying it would have gave the ZL1 the win if it had them, because it wouldn't). They have been on there almost since I bought it, so I consider it stock. Afraid of trying to hook that car on street tires so had to have the advantage. The ZL on DR's with all the nannies off would have made it at least some kind of race. Still gotta go shelby, but would have been less of a rape. I'm assuming the camara woman was shelby man's wife? Watch it with the sound muted

Dude... I was sure thinking it... glad you said it... WoW

[NASTY99Z28]

Originally Posted by GrabberB5.Slow

I don't know about mid 12s, seeing as he still only managed a 1.9 60' and ran an 11.6 . High 11s, low 12s on stock rubber.

Your only focusing on the first 60". If that's the best he could do I'm going to "assume" his driving isn't the best and he would spin pretty hard in first and second which goes way past the 60" mark so I would have to think a 12.30-12.60 sounds about right.

Now give the zl1 a dr and put stock tires back on the gt500 and see what happens with these two guys I say the gt spins his assoffs trying to catch the zl1.