7 Speed Transmission Upgrade?

Lientz said:

My daily driver is an 02 convertible gt 4.6L manual and to me more gears=better power over more speed ranges, and (more importantly for a DD) better gas mileage.

Click to expand...

Just wondering how much better gas mileage would be reasonable? Let's just say for the sake of discussion that it improved gas mileage by 2 miles per gallon. Per fueleconomy.gov that driving 15k miles per year at $2.37 per gallon would save $988 over 5 years!

I did a quick lookup of the cost of a 6 speed transmission. Just the cost of the transmission plus bell housing would be around 3800.00

http://www.jegs.com/i/Ford-Racing/3...XdmZFf_PYho3mgKIaUWSaSxyEX08fPDmKnRoCtpPw_wcB

It would take 20 years of driving to pay for this upgrade based upon fuel savings.

Obviously if the cost of gas goes up or you do a lot of high speed highway driving the ROI could improve......Try it for yourself. Increase the cost of gas. Try more miles driven per year. Get the idea?

https://www.fueleconomy.gov/feg/savemoney.shtml

It seems to me that this only makes sense if the current transmission can't hold the torque of the stock unit.

Signed.

Ward Cleaver
https://en.wikipedia.org/wiki/Ward_Cleaver

>>
Tremec 6-Speed

• 700 ft/lbs Torque Capacity
  Gear Ratios:

• 1st: 2.97

• 2nd: 2.10

• 3rd: 1.46

• 4th: 1.00

• 5th: 0.74

• 6th: 0.50

Yeah beav. What's with the seven gears all of a sudden. You could throw your arm out with that many speeds. Golly gee.

Signed,

Wally Cleaver