DREAMERAK

The report says nothing about overheating, cars throw codes for lots of reasons.

"We tested both the automatic and manual Z06, the latter returning numbers lower than expected. The base seven-speed coupe, 3559 pounds, did a 60-mph strafe of 3.4 seconds, a quarter-mile clobbering in 11.5 seconds at 126 mph, skidpad laps averaging 1.12 g’s, and a stop from 70 in 139 feet. However, our tester grumped that the car should have been quicker, especially since its computer threw a code during testing and may have been cutting power. Even if it was, the car still posted numbers comparable to the old ZR1. Retesting before deadline wasn’t possible, so we teed up our next subject, a Z07 automatic coupe, which logged the performance shown in our charts."

http://www.caranddriver.com/reviews/...ll-test-review

X25

My 2006 Z06 used to not go more than 270 degrees at my local tracks, while I had the upgraded Z07 radiator on my 2013 Z06, which had the engine oil cooled by coolant, and also stayed around 270s after the upgrade.

I do have a Camaro SS 1LE, now, and it hit 290 degrees, after which I installed a huge oil cooler (which I posted a how-to on it here), which cured the issue. I heard from Improved Racing that their customers that own C7 Z51 also went with this huge core, and they reported that they stay around 250-260 degrees F at the track:



In his defense, Randy's posted time is his first hot lap ever, and he already stated there was more time to be gained, but they could not try it since the engine overheated and they did not have much time left. I personally think he could easily close the gap if he had time. Milner is GM-sponsored, so he won't talk about any issues, etc., and will have time to get used to the car (if not already, given he drives Corvettes as a job).

Z06Wolf

I too heard a rumor it was the trans. cooler and it was upgraded. That was from my dealer. Obviously, this is a concern for many. Can you confirm your source (in general terms)?

I can't...but I was told that it may be a contributing factor to the A8 delivery/production delays (which again, is pure conjecture).

thebishman

I'm well aware of that, but C&D's experience is closely tied to what MT mentioned about RP in the M7 version that was getting slower/pulling timing on each lap and then threw out an "overheat" warning light. They don't mention whether is was the transmission or engine oil but it is was pulling timing I'm inclined to think it the engine.
Bish

harlold

I have to call shenanigans on the "it will only happen to a pro" - there are plenty of track rats that can drive hard.

It will be disappointing if this is more than a fluke. A $80k+ track focused car should be able to not need mods to make it through a track day.

Hope it is just a fluke.

skxf430

My Z06 with a DeWitts radiator and Setrab oil cooler will still overheat seeing oil temps over 300F. Certain tracks tend to make it overheat more than others. My next step would be to vent the hood but would rather not go to that extreme.

I imagine the new Z will have some heating issues and hopefully, some aftermarket guys will find a practical solution for this issue.

X25

Is your Z06's engine stock otherwise? Which Setrab core do you have?

corvettefrance

If you have the chance to drive a GT3 on a track you ll understand why
Also look at the value of a 10 years old Porsche and a ten years old corvette

LSs1Power

Go with Breathless twin oil coolers. Not only it gives more surface area exposed to air (sits in fog lights spot) but also gives you 4 extra quarts of oil for better heat control.

skxf430

Yes, stock engine. I don't recall which Setrab but it was the biggest model we could fit it.

LS1LT1

Ok, let's look at that.
A 2004 Corvette was roughly $45k brand new (before any rebates/incentives which WERE available to most buyers back then) and sells for roughly $19k - $24k now depending on mileage.
A loss of roughly $21k - $26k.

A 2004 Porsche 911 coupe cost roughly $68k brand (few if any rebates/incentives available) and those sell for roughly $26k - $36k today depending on mileage.
A loss of roughly $32k - $42k.

Value? Which owner actually lost more money?

Boxsters, though cheaper to buy than a 911, also lost MUCH MORE value in the used market over those 10 years as well.

5abivt

For me there isnt anything beyond a c4z that I would rather have than many many P cars. Its not about performance. The way I see it.. Its like saying a track star, semi decent looking of course is better than a supermodel in performance. OR, a **** star vs a model if thats how you are measuring performance I think Many Porsches are stunning. They have a different 'feel' to them. I do like the c7 but the back end will forever keep me away. I like the copy c4 interior . Actually I really like it plus the competition seats but enough to own one even vs a 996 turbo.. Nope. Or even many other P cars for that matter.

emaratee

Porsche is a Porsche .. Corvette is a Corvette

Debug it the way you like ..

musclecar6

Gee, let's see. A Cayman GTS/PDK with some nice options for 90 grand, a Turbo S for around 200 grand, a GT3 for 150 ish, a Stingray for 60/70 ish or Z06 for 85, tricked out Z06/Z07 105/110. What's to talk about ? One word. Ego. Porsche "feel" ?!?!?!?!? What about C7 "feel" ? ( we're not talking about old days ride and handling. We're talking about modern day highly dialed in developed corvette feel). What about looks. Stingray/Z06 striking head turning beautiful exotic yet still corvette looks vs a homely hunchback turtle "iconic" look. Last but not least, price. TWICE as much for a Porsche. My conclusion : Porsche is not better, just different at twice the price. I had a 996 TT for 5 years( while also having a tricked out C5 and C6). I've had my last Porsche. Been there done that. My next fun car will be a 2016 C7 Z06 A8 coupe.

Rumba

Did you ever own a P car out of warranty? Talk about getting raped?

heavychevy

That is not a significant difference. The difference is Randy driving 9 tenths for a magazine and Pilgrim and Milner test drivers setting laps to represent the brand. It's like DE level of effort vs qualifying level of effort. Look at Randy's times in the Viper from the mag test to when Ralph Gilles called him out as scared of the Viper. Randy always leaves time on the table when driving for mag tests. Randy picked up 1.5 seconds from his first time in the car to the second. Part of the Viper test being slow the first time was a toe issue but the other part was randy with the bit between his teeth. Now he may not be as fast as Milner, but he's not going to be far behind.

TARANTULA

Look at the leather on drivers seat and the c7 z06 is just 1 day old.

Crabbers

This is still going on?

The thread that keeps on giving!

malmasri

I hope you have a deposit on the RS long ago, chances of getting one are slim to none .

Boba Fett

and to think how silly the main question is anyway...