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Old 03-13-2014, 08:17 AM   #31 (permalink)
sarguy01
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Join Date: Jan 2010
Location: Virginia Beach
Posts: 468

Mazda5 - '12 Mazda 5
90 day: 25.22 mpg (US)

Big D - '11 Dodge Durango Crew
90 day: 18.75 mpg (US)
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Quote:
Originally Posted by Mista Bone View Post
Straight transmission swap, no tuning involved. I was just learning how to rebuild these trannys and made a few mistakes as well as trying different ratios. One year (2000 or 2001) I was swapping transmissions about every three weeks. The tune that Blundar (David Blundell - Tuner) used was a best guess first shot, there was more there but 10-12 much was unknown about the limits of the tuning.



soD: either low rpm like most prefer on here or a higher more normal rpm like I prefer both require the same amount of fuel when cruising at same speed in same car on the highway. The advantage of the higher rpm is if you have to pass someone, like a 18 wheelers doing 55 mph and cars are allowed 65 mph. To make that pass I had to use less throttle input. With longer gears you will have to use more fuel to safely overtake, same thing if on a hill or a stiff headwind.
Sounds like a good candidate for drafting...why pass??

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