Quote:
Originally Posted by Sax1031
Auto vs Auto I have to believe the Ford tranny to be the better one. I mean they went with AFM and the L99 so they could still get by without the gaz guzzler tax.
Ford uses the same engines as the manual and were still able to get nearly identical MPG numbers from the auto compared to manual.
And this new auto is a baby of Ford and Gertrag working together. That auto is basically a in house Ford tranny.
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Quote:
Originally Posted by Dragoneye
Actually...they used AFM because it was an inexpensive way to quickly increase the highway efficiency of the V8. Something they had planned on doing since the concept car. However, they cannot pair AFM to a manual transmission because of the NVH issues. Had they not used this feature, the auto SS would have probably scored 23mpg on the highway, "nearly identical" to the manual SS, and not subject to the gas-guzzler tax.
I would say GM has some of the best automatics out there, so much so that foreign competitors have been known to buy units for their vehicles. Much, if not all of the Mustangs fuel economy benefits come from the new (finally-efficient-enough-to-justify-DOHC) engine and other fuel-saving changes like the EPSA. Not the transmission.
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To further the tranny issue, although I don't know if the L99 gets it, but the v6 auto has a ton of torque management in the tranny to
soften the shifts. It has been shown that if the tranny gets tuned, ie; remove the torque management, the auto is quicker and the shifts firmer. Even in Sport mode, the factory tranny tune is a grandmother, lol.
Now, again, I don't know if the L99 uses torque management in the tranny like the v6 does, but if it does, a quick tune of the tranny would make the L99 a quicker car without touching anything else.