chevpwr

First track outing with my new car, 2016 3LZ A8, sub 500 miles on odometer and still has the dealer tag (I got it last Saturday)
Mods 19x12 repro rear wheels with MT 325/35R19 drag radials.

First Pass 11.22 second pass 11.23. It was 75 degrees and the DA was 1500+


This pass was against another Z06 I'm car 063

BooSSted

Nice to see new car owners getting after it, rather then putting around under 4k for 2000 miles
Nice passes, bolt on some more power soon.

sixt7L79

For what it is worth the owners manual says not to take the engine over 4,000 rpm until you have over 1500 miles on the engine. There is a break in period....also a proper way to burnish the brakes...like I said for what it is worth..

I don't baby my car I track it but just wanted to share that info.

01Defense

You don't get full power until 500 miles... be careful

mowe

This is not actually true...

ACS55

Hey, that time slip looks familiar..
Congrats on getting that dude out and breaking it in!
I already gave you all of my input on the "Z06 corvette America" FB page.
Andy

01Defense

He's missing mph for some reason or another.

chevpwr

The guy I raced had 15,000 miles on his and we ran almost the same time/speed? He had a Halltech also.
He did say his car ran 10.99 a few weeks earlier in better air, but he didn't say the mph.

01Defense

I could be wrong, but there is info out there from GM that recommends a 500 mile break in period. There is a video some guy did that shows the instrument panel changing at 500 to allow full power. Oil change is required at 500 as well. I followed this protocol when I break-in my car and it worked fine for me.

CanadianVetster

I believe the dash change shows a different redline for the revs. at 500 miles

I don't think it changes the power, just the recommended revs.
for the break in period.

Z0HS1CK

You mean the RPM illumination?

BMW does the same thing at each start up, or should i say cold start up.

The number representations will stay LIT until the engine is warmed up, then each number "light" will turn off as it's warming up.

That's how it was in my Z. I think 4500 to red line was remained lit until i hit 500, then everything turned off.

But it still lights up upon cold start up, then turns off as the engine is warming up.

They do this so you know to monitor your rpm's as your car is warming up.

Has nothing to do with power.

Speedforhire

There is absolutely no change in power.

The car has max boost right off the assembly line. The rpm indicator illumination bar will disappear after the 500 mile break-in. GM recommends another 1500 miles before driving at sustained high rpm's.

The owners manual is your friend folks.

Dfwz06

Nice runs

ACS55

I'm guessing this is a "stacking of tolerances".
Multiple little things adding up to make one bigger thing.
1. Heavier than stock wheels (aftermarket chrome).
2. Heat soaked engine. ECT north of 194 during runs, pulls lots of timing and power.
3. Heat soaked engine. IAT2 temps hotter than threshold (I think it's 142deg?) pulling more timing and power.
4. Running less than 98-100 octane, ECM detecting knock, pulling more timing KR... and power.
5. Your car is loaded with options 3LZ= heavier.

These cars (z06 a8's) will "easily" do 10.7-10.9 but the factory tune is a bit tricky to make this happen... it goes into "self defense mode" almost automatically = pulling timing = pulling power = slower than it's potential.

They are beasts, but they are picky beasts!!

1QUICK Z

Well said, Andy.

Mr. Gizmo

there is a guy on the forum with the handle of bignasty. He had one of the first a8's and drove it right from the dealer the day he bought it and to the drag strip. I think he had spare wheels with drag radials and slapped those on and was running low 10's with a z with less then 100 miles.