Quote:
Originally Posted by Christ
Also, if using a gearbox, only the gears with a ratio value higher than 1:1 would be of use. The rest would be splitting the existing ratios without providing much in the line of help, instead adding extra driven mass and friction/fluid shear. Consider something like a T5 gearbox with all but 4/5 removed. I believe both are OD gears.
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Your pretty much right on it, a Chart found
The T5 Transmission Swap Thread
Provides a Key to the ratios.
The vehicle in question:
1352-247.....09................(1995) Firebird V6 3.4L
Ratios: 3.76.....2.18.....1.42.....1.....0.72, 3.73 rear end
This is also a Non-WC Tranny.
What i was thinking of, is using no higher than 4th, and basically having a (0.50:1, or 0.60:1) external reduction case.
Even then, there still might be a chance to use 5th+(0.72:1) External Reduction Case
Gear Ratio Calculator allows me to play around with options, and find the best matching RPM's/speed, compare Stock to added Reduction Case side by side...
5th(0.72) Stock.......................................2164rp m.....65mph
5th (0.72) + Reduction case(0.72)...........1558rpm.....65mph
T56 swap
6th (0.50) ...............................................150 3rpm.....65mph
respectively
Effectively all you'd be doing is adding that 2nd OD gear without doing any sorta swap/internal change. Only thing would be is you wouldn't be dissabling it at anytime unless you swapped out shafts and removed the case. But giving the fact its only a work daily driver without any planned mods to performance or handling i don't think there would be an issue. chugging along around 55-60mph might produce some interesting results
EDIT:
Example:
The straight shaft would be best, and the actual Gears for the external case can be found in other T5 parts piles for ease and cut cost on the gears themselves., All that would need to be done is have a Case CNC'd by your local College for the WIN!
The other two offset shafts would require the axle to be flipped for the wheels to rotate the correct way....