Forcedvert

If you lived in south fl, or Cali. Nobody would evan notice it. My 69 convertable chevelle SS got more looks than most cars around here. People left notes on it asking if I would sell it! Just don't try to go around a corner in it fast!

LS1LT1

True.
But then again, neither is a Cayman/Boxster, 'S' model or otherwise LOL.

Mopar Jimmy

Here's a big reason why to own the P car over a vette if you life where it snows: In the Midwest where it snows a lot the P car with its all wheel drive can be drive year freaking round with snow tires, and I see guys doing it a lot the last several years That's my plan in a year or two, get a 2012/13 turbo S P car, drive it all *%*$)_% year rain, snow or shine, rip of high 10 second passes at the dragstrip and kick some azz at the road race track in the spring an fall, and have a smile on my face year round, while having a Supervette or my current 600+ HP 2009 Viper in my garage, along with my currently owned 565 ci inch Dart engine, with 250 N20 dual shot, 1000 HP, cherry mint, candy apple red. 1967 Camaro SS, for straight line insanity and nice weekend weather fun.

HONESTLY, I hate WINTER with a passion and the P Car can really help pass winter for a hard core car guy like me, given the fact that is true super car and can even be driven in the snow when the C7 Z vette can't with it rear wheel drive, lack of snow tires, and body being to low to the ground (just saying)!

DLC7

After reading tonight, I think it's time to start this thread. Please direct your comments toward prospective buyers who would primarily track the car.....and the delimma between waiting for more data on the problems, vs hoping for a price drop off msrp.

BaDiNfLuEnCe706

Originally Posted by Ron@Vengeance Racing View Post
With the OE calibration we did experience the same thing... The timing tables are EXTREMELY conservative and the ECU will pull timing for almost any situation. I am waiting for owners to complain about "tip in" as the ECU pulls a massive amount of timing when slightly touching the gas pedal.

All that being said, MOST of the loss of power can be addressed in the ECU.. IAT2 temps are actually quite impressive, even after multiple pulls on the chassis dyno. We will get on the highway in the next couple of days and make some back to back "multi gear" runs for comparison sake.


So far seems like a restrictive stock tune.. Not an actual cooling issue

arcticblast

I wonder if the conservative factory tune has anything to do with being at the rated limit of the 7 speed transmission?

racerns

While that may explain the power drop off it does not explain the actual over temp issues that were experienced during the RA testing.

ChucksZ06

But do we know what the actual temps were? Or do we only know that the ecu was pulling power? Way too much speculation at this point. That is one thing the forum does well is speculate.

arcticblast

That's putting it politely.

racerns

It was confirmed from Randy Post that he got an actual high oil temp warning.

freeman1215

I believe that Vengeance post that "MOST of the loss of power can be addressed in the ECU" is indicative of this problem The word "most" is my only concern since the IAT2 Temps were low, so that's not the issue. So what is contributing to the rest? We will see when Ron at Vengeance tests on the street this week!

kverges

It would be most helpful to have some details with real-world experience, such as track, date, ambient temperatures, temperatures (oil, water, even IATs), and lap times.

I am happy to torture test at MotorSport Ranch - it is pretty hard on my C6Z.

dlparsons

Am I wrong? there have been two reports of overheating, one on an A8 test car with an oil overheat issue that had been run several times that day. The second being an issue on a new customer's M7 car that had just 700 miles on it where he saw some decrease in power? Have there been other reports of overheating as well? Do two reports in two completely different scenarios make a system wide "problem" with the car? Have there been other reports that I missed?

JackTripper

I hope that the jury is still out on this. We still need a larger sample size. Either way, I am sure that this issue will be addressed.

DLC7

Thanks for the input. Next logical question would be whether or not the manufacturer has provided a remedy for similar situations in the past.....comments?

My feeling is there is no way in hell they are going too address this due to CAFE standards....which means z06 owners who hit willow springs, in the desert southwest, (and that will be a lot) are going to have very limited track time..

ZO6ME

Maybe GM forgot to put the second key in the goodie bag.

jdmdohcpower

I think the real issue with all this is the fact that we now see claims that the car is best at a glory lap vs a full session with the info provided so far. Now here is my issue with the info. 1. if you wanted a pure track car why by a FI car? Heat soak is nothing new and people who track only these cars dont care much about warranties. 2. If you dont track the car much I dont seeing it running into power loss situations on the street.
I think people are more ticked of that you need to void the warranty and tune it to be able to do what the car should be able to do... What we dont know is how strong is the lt4? Is it strong enough to void the warranty without concern? Will GM update the software to remedy this? If they do will if be applied to the 15's or the next model year and so on..
I have my car sitting at the dealer and I still am going to take it but I would be really mad if the 16's addressed this issue and I voided my warranty to do it

Foxer55

DLC7,

I think you may be on to something here. I would prefer to pay the GGT and have a car that performs rather than save $1500 on a car that won't perform.

mgrenwic

Can someone clarify what the actual issue is for me?

So it is not heat-soak?
Is the car just warming up and the hotter is gets the more and more conservative the computer gets? It's pulling timing with temp increases?

Thanks

RapidC84B

That's what it seems, but we don't know for sure as nobody has logged IATs on the track, just on the dyno. On the dyno the IATs are staying low, so the assumption is that as oil/coolant temps rise the car neuters itself. We'll know more as more people run the cars and more testing is done.