SAE Paper Summary Leaking 2015 Corvette's 8 Speed Auto Gets Redacted

It’s not known if the leak was intentional or not, but the summary of a paper initially published by the Society of Automotive Engineers, since taken down from the SAE site, says that a new eight speed automatic transmission, given the designation 8L90 by General Motors, will be introduced in the 2015 Corvette, on sale next fall. The all-new 7th generation Corvette is currently offered with GM’s 6L80 six speed automatic and a seven speed manual gearbox. The 8L90 is described as being designed for rear-wheel-drive applications and variants will likely be used in GM’s fullsize pickups and in rear wheel drive Cadillacs.

The 8L90 has about the same overall dimensions as the 6L80, and is said to be able to handle up to 737 lb-ft of torque. It has a shorter first gear for better launch acceleration, an overall ratio spread of 7.0 and three speed sensors for better shift response. Other benefits are said to be better fuel economy, improved performance and a quieter car with improved NVH levels.

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  • Ajla So a $10K+ transmission repair?
  • Kwik_Shift_Pro4X I've mentioned before about being very underwhelmed by the Hornet for a $50000+ all in price tag. Just wasn't for me. I'd prefer a Mazda CX-5 or even a Rogue.
  • MaintenanceCosts Other sources seem to think that the "electric Highlander" will be built on TNGA and that the other 3-row will be on an all-new EV-specific platform. In that case, why bother building the first one at all?
  • THX1136 Two thoughts as I read through the article. 1) I really like the fins on this compared to the others. For me this is a jet while the others were propeller driven craft in appearance.2) The mention of the wider whitewalls brought to mind a vague memory. After the wider version fell out of favor I seem to remember that one could buy add-on wide whitewalls only that fit on top of the tire so the older look could be maintained. I remember they would look relatively okay until the add-on would start to ripple and bow out indicating their exact nature. Thanks for the write up, Corey. Looking forward to what's next.
  • Analoggrotto It's bad enough we have to read your endless Hyundai Kia Genesis shilling, we don't want to hear actually it too. We spend good money on speakers, headphones and amplifiers!