Which tranny best suits the k24A2 powerband?
#1
Which tranny best suits the k24A2 powerband?
Everytime I run the TSX hard while accelerating, the 1-2 upshift is gets more irritating. The huge drop in RPMs takes away all the fun. With that said, I'm looking into doing a swap.
Stock TSX 6MT
1st Gear 3.27
2nd Gear 1.88
3rd Gear 1.36
4th Gear 1.03
5th Gear 0.83
6th Gear 0.66
Final Drive: 4.76
No LSD
USDM Type-S (2002-2004)
1st gear 3.267
2nd gear 2.130
3rd gear 1.517
4th gear 1.147
5th gear 0.921
6th gear 0.738
Final Drive Ratio 4.389
No LSD
K20A JDM ITR
1st Gear Ratio 3.266
2nd Gear Ratio 2.130
3rd Gear Ratio 1.517
4th Gear Ratio 1.212
5th Gear Ratio 0.972
6th Gear Ratio 0.780
Final gear ratio 4.764
w/ LSD
If a swap can be done, which one would you prefer? I'd have to suspect the JDM ITR's due to availability and the fact there's an LSD. However, it looks like gas mileage will suffer due to shorter gears at freeway speeds.
Stock TSX 6MT
1st Gear 3.27
2nd Gear 1.88
3rd Gear 1.36
4th Gear 1.03
5th Gear 0.83
6th Gear 0.66
Final Drive: 4.76
No LSD
USDM Type-S (2002-2004)
1st gear 3.267
2nd gear 2.130
3rd gear 1.517
4th gear 1.147
5th gear 0.921
6th gear 0.738
Final Drive Ratio 4.389
No LSD
K20A JDM ITR
1st Gear Ratio 3.266
2nd Gear Ratio 2.130
3rd Gear Ratio 1.517
4th Gear Ratio 1.212
5th Gear Ratio 0.972
6th Gear Ratio 0.780
Final gear ratio 4.764
w/ LSD
If a swap can be done, which one would you prefer? I'd have to suspect the JDM ITR's due to availability and the fact there's an LSD. However, it looks like gas mileage will suffer due to shorter gears at freeway speeds.
#4
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Depends on what you want to do with it. If you want a tranny that will let you accelerate quicker, use a combo of RSX-S tranny with CRV differential (5.14), add a Quaife to it.
For highway mileage, the stock tranny gives an ideal compromise between mileage and enough torque for hillclimbs without needing to constantly downshift.
For highway mileage, the stock tranny gives an ideal compromise between mileage and enough torque for hillclimbs without needing to constantly downshift.
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#5
Driver/Detailer
LOL, we have it worse. Our AUDM Accord Euro somehow has different ratios and final drive compared to the TSX, eventhough we also have the magnesium case 6-speed manual. Check this out, we have a longer final drive than the TSX so our acceleration suffers, while the gap between 1st and second is larger than the TSX! Shifting at 7200-7300rpm drops us back down to 4500rpm.
Ratio 1 3.533
Ratio 2 1.880
Ratio 3 1.354
Ratio 4 1.027
Ratio 5 0.825
Ratio 6 0.659
Final drive ratio 4.388
Ratio 1 3.533
Ratio 2 1.880
Ratio 3 1.354
Ratio 4 1.027
Ratio 5 0.825
Ratio 6 0.659
Final drive ratio 4.388
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#9
Suzuka Master
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Originally Posted by aaronng
LOL, we have it worse. Our AUDM Accord Euro somehow has different ratios and final drive compared to the TSX, eventhough we also have the magnesium case 6-speed manual. Check this out, we have a longer final drive than the TSX so our acceleration suffers, while the gap between 1st and second is larger than the TSX! Shifting at 7200-7300rpm drops us back down to 4500rpm.
Ratio 1 3.533
Ratio 2 1.880
Ratio 3 1.354
Ratio 4 1.027
Ratio 5 0.825
Ratio 6 0.659
Final drive ratio 4.388
Ratio 1 3.533
Ratio 2 1.880
Ratio 3 1.354
Ratio 4 1.027
Ratio 5 0.825
Ratio 6 0.659
Final drive ratio 4.388
#10
Driver/Detailer
I think it was someone else. Was it a 5.4 final drive? I know someone here who is putting that in. Also, the DC5R's 4.764 (which comes in your 6MT) is a swap with our 4.388.
#11
Suzuka Master
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Originally Posted by aaronng
I think it was someone else. Was it a 5.4 final drive? I know someone here who is putting that in. Also, the DC5R's 4.764 (which comes in your 6MT) is a swap with our 4.388.
#13
Originally Posted by jpt
If you do an RSX-S swap, keep your 6th gear for cruising. I'd keep the shorter final drive too.
#15
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I think the Civic Si tranny looks perfect -- closer ratios down low with the same final drive and 6th gear. That, plus LSD. Wonder why the TSX lacks that set-up. That 1-2 shift drives me nuts, too. Even with Hondata and the 7,600 rpm redline, I drop to about 4,300 and back off the high cam. The Civic tranny would keep you on the high cam if you have Hondata.
#16
Originally Posted by peter_bigblock
I think the Civic Si tranny looks perfect -- closer ratios down low with the same final drive and 6th gear. That, plus LSD. Wonder why the TSX lacks that set-up. That 1-2 shift drives me nuts, too. Even with Hondata and the 7,600 rpm redline, I drop to about 4,300 and back off the high cam. The Civic tranny would keep you on the high cam if you have Hondata.
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