C7 Corvette

[FlatBlackCaddy]

If I had just dropped 100 large on this car and then found out it only makes max power for one highway blast and it loses a bunch because GM programmed a big ignition retardation to protect an engine that is obviously not up to the task, I would be pissed.

GM has been pissing of Z06 owners for well over a decade. I guess it's just standard equipment now.

[Raza]

It's a classic, would have been even funnier if they crashed in front of a denny's because they were racing to beat the deadline for the early bird special.

The Denny's was just out of shot. 

[SJ_GTI]

They're is a problem with the cooling of this engine if there is a 20 degree differential in intake air temps after a couple hard runs.  Also, for GM to build in such a conservative tune that cuts power as soon as things get a little hot says to me they're really concerned about the longevity of this engine and it must be maxed out.

Seems like an easy fix though.

[FoMoJo]

They're is a problem with the cooling of this engine if there is a 20 degree differential in intake air temps after a couple hard runs.  Also, for GM to build in such a conservative tune that cuts power as soon as things get a little hot says to me they're really concerned about the longevity of this engine and it must be maxed out.

Maybe they should try and develop water-cooled pushrods.  Being stuck in the centre of the engine, like they are, they must act like little furnaces without any good way of dissipating all the heat they capture.

[SVT666]

I was over at Corvette Forums and several guys have or are about to cancel their orders for the Z06.

[SJ_GTI]

Seems legit. 

[GoCougs]

Like I said earlier. GM doesn't wanna be responsible for replacing blown engines on tracked Z06s. SMH.....

What I'm surprised at is apparently a few 'SPINners don't realize that all F/I cars do this. IMO it's more that now that these mega HP cars are becoming cheaper we hear more far more stories what with regular folks and tuners buying them and mucking about...

[FoMoJo]

That's what the sodium fill is for.

Obviously, it's not doing the job.

[FlatBlackCaddy]

Obviously, it's not doing the job.

OR gm cheaped out and just bought a bag of table salt and filled the rods with those.

[SVT666]

What I'm surprised at is apparently a few 'SPINners don't realize that all F/I cars do this. IMO it's more that now that these mega HP cars are becoming cheaper we hear more far more stories what with regular folks and tuners buying them and mucking about...

No. Not all F/I cars do this...especially at that price point.

[MrH]

OR gm cheaped out and just bought a bag of table salt and filled the rods with those.

If sporty made this point, I would have thought it was serious

[GoCougs]

No. Not all F/I cars do this...especially at that price point.

Yes, they all do, by definition. Simply Google whatever car - WRX, ZL1, 911 Turbo, etc., - and "heat soak" and see all the examples. The most notorious example is the first gen GT500, and not incuriously, it was the first mass market high hp F/I car...

[MX793]

Yes, they all do, by definition. Simply Google whatever car - WRX, ZL1, 911 Turbo, etc., - and "heat soak" and see all the examples. The most notorious example is the first gen GT500, and not incuriously, it was the first mass market high hp F/I car...

Heat soak is not the same as actively retarding the timing.

[MexicoCityM3]

What I'm surprised at is apparently a few 'SPINners don't realize that all F/I cars do this. IMO it's more that now that these mega HP cars are becoming cheaper we hear more far more stories what with regular folks and tuners buying them and mucking about...

Bullshit, I track my 1M for 30 minutes at a time at 6,000 ft above sea level. No noticeable power loss.

[Gotta-Qik-C7]

They're is a problem with the cooling of this engine if there is a 20 degree differential in intake air temps after a couple hard runs.  Also, for GM to build in such a conservative tune that cuts power as soon as things get a little hot says to me they're really concerned about the longevity of this engine and it must be maxed out.

The article says the temps after the Super Charger were great so heat shouldn't be a problem.

If I had just dropped 100 large on this car and then found out it only makes max power for one highway blast and it loses a bunch because GM programmed a big ignition retardation to protect an engine that is obviously not up to the task, I would be pissed.

I agree 1000000%

[SVT666]

Heat soak is not the same as actively retarding the timing.

Cougs says it is.

[GoCougs]

Heat soak is not the same as actively retarding the timing.

So what are the drivers for "actively" retarding the timing?

[12,000 RPM]

Bullshit, I track my 1M for 30 minutes at a time at 6,000 ft above sea level. No noticeable power loss.

U clearly dont understand basic engineering principles. Cougs' twelfth hand knowledge >>>>>>>>>>>>>>> your every day experiences.

I also find it quaint that Cougs denounces chassis dynos, but readily accepts the totally subjective phenomenon of "heat soak", based on forum chatter. Never mind the fact that you can find "track overheating" threads for everything from my Z to a 991. If there is an overheating problem with high performance cars it has nothing to do with F/I

[GoCougs]

Bullshit, I track my 1M for 30 minutes at a time at 6,000 ft above sea level. No noticeable power loss.

Hmmm. The very first Google result for "BMW 1m heat soak" is Dinan's oil cooler package which is "... to keep the 'limp mode' or heat soak away during a track day".

Also, loads and loads of M5 heat soak sob stories...

[12,000 RPM]

So what are the drivers for "actively" retarding the timing?

Why dont u buy a Z06, an OBDII datalogging program and some track time and find out?

[MexicoCityM3]

Hmmm. The very first Google result for "BMW 1m heat soak" is Dinan's oil cooler package which is "... to keep the 'limp mode' or heat soak away during a track day".

Also, loads and loads of M5 heat soak sob stories...

The M5 heat soaks (i've personally gotten one to limp). The 1M doesn't. But w/e I probably just dreamed that I tracked the car.

[MexicoCityM3]

Also, Dinan recommends the cooler mainly along with their power upgrade kits, which makes sense. I am seriously considering making my 1M a Dinan S3 1M with 440hp and getting their full kit, it's about 12K, probably around 16K or so installed.

[SVT666]

Bullshit, I track my 1M for 30 minutes at a time at 6,000 ft above sea level. No noticeable power loss.

Hmmm. The very first Google result for "BMW 1m heat soak" is Dinan's oil cooler package which is "... to keep the 'limp mode' or heat soak away during a track day".

Also, loads and loads of M5 heat soak sob stories...

U clearly dont understand basic engineering principles. Cougs' twelfth hand knowledge >>>>>>>>>>>>>>> your every day experiences.

GoCougs + Google = Never wrong.  Enough said.

[FlatBlackCaddy]

Why the hell do you guys even read his crap?

[GoCougs]

Why the hell do you guys even read his crap?

Well, to be fair to them, they're less wrong more often then you are, so maybe they're doing It Right?

[r0tor]

So did anyone mention yet that C&D had to test 2 Z06s because the first one broke?  Sort of like their experience during the Lightening Lap with the C7....

[SVT666]

Not good.

[Gotta-Qik-C7]

So did anyone mention yet that C&D had to test 2 Z06s because the first one broke?  Sort of like their experience during the Lightening Lap with the C7....

They said they had an Auto and a Manual on hand! One of them threw a Temp Code. Thats not breaking......

[r0tor]

They had to park the manual because it threw a permanent code and then was slow as balls... While not granading the engine like in the Lightening lap, I believe broke is still appropriate

[Gotta-Qik-C7]

They had to park the manual because it threw a permanent code and then was slow as balls... While not granading the engine like in the Lightening lap, I believe broke is still appropriate

I'm wondring if it has something to do with the break in procedure?
http://www.corvetteblogger.com/2013/10/16/video-gm-lets-you-know-when-its-okay-to-redline-your-new-2014-corvette-stingray/