Recomended Option 1
http://www.jegs.com/i/G-Force-Transm...ductId=1343713
G-Force Transmissions GFT5242-93S
Synchronized T5 Gear Kit 87-93 Ford Mustang
G-Force Transmissions GFT5242-93S
Part Number: 468-GFT5242-93S
Synchronized T5 Gear Kit
87-93 Ford Mustang
Ist
2.42, 8.47:1 over all, mph per 1000 RPM = 8.7
2nd
1.53, 5.36:1 over all, mph per 1000 RPM = 13.8
3 rd
1.23, 4.31:1 over all, mph per 1000 RPM = 17.1
4 th 1.00 gear ratios, mph per 1000 RPM =21.04
Comes with 0.59:1 5th; Use Sebring
5 th
0.80:1, 2.8:1 over all, mph per 1000 RPM = 26.3
Use 3.5:1 axle ratio (final drive in 1:1 4th). Similar to using 3.55's
Gearing with Tires loaded 628.8 mm tall (24.76")
Unloaded static dimensions 642.6 mm tall (25.30")
At 5500rpm change up, 48, 76, 94 mph, 116 mph and 145 mph
That top wack which requires 225 flywheel hp net with a 0.40 drag factor Mustang with 20 sq feet of frontal area.
Recomended Option 2
http://www.jegs.com/i/G-Force-Transm...5-93S/10002/-1
G-Force Transmissions GFT5295-93S
Synchronized T5 Gear Kit 87-93 Ford Mustang
G-Force Transmissions GFT5295-93S
Part Number: 468-GFT5295-93S
Synchronized T5 Gear Kit
87-93 Ford Mustang
2.94, 1.94, 1.34, 1.00 gear ratios
Ist
2.95, 11.00:1 over all, mph per 1000 RPM = 6.7
2nd
1.94, 7.24:1 over all, mph per 1000 RPM = 10.2
3 rd
1.34, 5.00:1 over all, mph per 1000 RPM = 14.7
4 th 1.00 gear ratios, mph per 1000 RPM =19.74
Comes with 0.59:1 5th; Use Stock Mustang Fox
5 th
0.72:1, 2.69:1 over all, mph per 1000 RPM = 27.4
Use 3.73:1 axle ratio (final drive in 1:1 4th). Similar to using 3.70's
Gearing with Tires loaded 628.8 mm tall (24.76")
Unloaded static dimensions 642.6 mm tall (25.30")
At 5500rpm change up, 37, 56, 81 mph, 109 mph , but 144 mph at 5250 rpm
That top wack which requires 225 flywheel hp net at exactly 5250 with a 0.40 drag factor Mustang with 20 sq feet of frontal area.
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