Although the majority of the problems related to the newest Corvettes revolve around deficient and defective cooling and aerodynamics, there is also the problem that the latest Corvettes inherited from the previous generation of Corvette, a truly horrible manual transmission system (system as in transmission, shifting mechanism and hydraulics).
The distinction that the newest Corvettes carry however, is in the fact that not only the latest generation of Corvettes failed to address problems found in the C6 cars but it also managed to add more problems, setting a new all time low standard for the certified piece of shit manual transmission option.
The previous generation of Corvette distinguished itself with its grinding gears, especially the second gear, making a quick shift from first to second gear nearly impossible, unless someone accepted a very unpleasant grind as the part of the shifting experience.
The previous generation of Corvette used a Tremec TR6060, a successor to the previously used T56 manual gearbox, found in pre 2008 C6 and in the C5 Corvette. Supposedly, this gearbox was "weaker" and not strong enough for the high performance application. Interestingly enough, this gearbox (found also on G3 Viper) had no problems with gear grinding or clunky gearshifts. The upgrade TR6060 unfortunately did grind the 2nd gear and was truly clunky while changing gears.
Here is the strange part, the same transmission was used on the fourth generation of Dodge Viper and in the Viper application, the transmission was still clunky but it never ground the second gear.
The difference between the Dodge Viper and Corvette C6 applications amounted to a different shifting mechanism (transmission on the Viper is directly behind the engine), different transmission mounts and different hydraulics.
Again, based on personal experience, the problems with C6 gear grinding were directly related to the super cheap and shitty hydraulics, slave cylinder specificall, with the crappy shifter mechanism completing the disaster.
As already pointed out on this blog, the newest generation of Corvette uses the same shitty hydraulics as the previous generation and surprise, surprise, the newest Corvettes grind their second gear just as the C6 Corvettes did, making the shifting a trying experience in the cold weather, with the car and its transmission cold.
But... there is a new twist, with the newest Corvette-in addition to grinding the second gear, the newest seven speed turd pops out of gears as well. Popping out of gear is never good and quite frequently, can be outright dangerous.
As indicated long time ago, the newest 7-speed manual transmission is not just a super stupid concept due to THREE overdrive gears but it is also a poorly designed transmission and on top of it, it is plagued by problems related to the quality of components used in it. When combined with the inherited shitty hydraulics and super cheap shifting mechanism, the sum of all problems adds up to a considerably bigger piece of shit than expected.
With regards to the question ask in the headline, the question was purely rhetorical. God forbid that not even a track performance attitude ever prevailed at GM, unfortunately, even asking for common sense is too much to ask.
With sudden limp mode on the track, failing electric power steering, and popping out of gear this car is down right dangerous!! GM needs to get their shit together before someone gets rear ended on the track or runs into someone or something because of the power steering.
ReplyDeleteThe TR6060 in my Gen V Viper GTS works flawlessly. No grinding, smooth shifts, etc. I'm not surprised Tadge and his team found a way to sabotage it.
ReplyDeleteThe hydraulics and shifting mechanism are better on Viper than on Corvette. Not sure about about that smooth shifting, it still felt the same on gen 5 I test drove as it feels on my gen 4, never grinds but it feels notchy and requires physical force to change gears but it never grinds, you just cannot shift with a tap of a finger as you can on Porsche or BMW...:)
DeleteYep, fair enough, it's not an "effortless" shifting process, but I wouldn't expect it to be in a transmission that beefy for a 600+ hp/tq car. I'd still say its smooth though. It slots nicely into gear, and I have never missed a shift. It has a nice positive engagement from gear to gear that I think is pretty good. It isn't as effortless as my Subie, but I don't mind a little effort. It makes it feel like the "man's car" that it is. I absolutely wouldn't tolerate grinding gears, or even worse, the shifter coming out of gear. That is ridiculous.
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