T-56 conversion
11-16-2002, 02:08 AM
#1
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Join Date: Nov 2002
Posts: 35
Does anyone have any info on coverting to a T-56 six speed tranny, I"ve heard there is an adapter kit you can get but I can't find it. I"ve gone through two race built trannys in 4 months cuase I keep cracking the tranny case cuase i launch to hard and I need somthing stronger.
11-18-2002, 12:48 AM
#5
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Join Date: Sep 2002
Location: Savannah, Ga
Posts: 2,763
If youll look at the ratios of the 93 F body T56, theyre very close to RX7 ratios, with the exception of the 5th and 6th gears splitting the 5th gear ratio on the rx7 tranny. the 94-97 f-body T56 has slightly taller gears, but a 4.3 rear diff will bring it back very close to the RX7 transmission.
Heres a break down of the ratios:
93 T56 94-97 T56 93-95 RX7
1st 2.97 2.66 3.483
2nd 2.07 1.78 2.015
3rd 1.43 1.30 1.391
4th 1.00 1.00 1.000
5th 0.80 0.78 0.719
6th 0.62 0.50
The first gear on the T56's are a good bit taller than the RX7 one, but is that really a bad thing? It will load the engine more, and make a little more boost in 1st gear. And a 4.3 diff gear will make for pretty nice ratios on 1st -5th, and a good overdrive.
Heres a break down of the ratios:
93 T56 94-97 T56 93-95 RX7
1st 2.97 2.66 3.483
2nd 2.07 1.78 2.015
3rd 1.43 1.30 1.391
4th 1.00 1.00 1.000
5th 0.80 0.78 0.719
6th 0.62 0.50
The first gear on the T56's are a good bit taller than the RX7 one, but is that really a bad thing? It will load the engine more, and make a little more boost in 1st gear. And a 4.3 diff gear will make for pretty nice ratios on 1st -5th, and a good overdrive.
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