garethr Posted September 19, 2009 Share Posted September 19, 2009 Easy for the Aussies, I suppose, because Holden use the T56 and they can be bought cheaply (until someone makes a JZ/UZ conversion and everybody wants one ). They are talking about "less than 2500 AUD" for the kit plus 1500 AUD for the gearbox (3000 AUD new). It's about 1.8 AUD to the pound at the moment. Would the conversion even make sense for a JZ, given that it's a double overdrive 'box? Perhaps a T56 with the higher 1st gear ratio and a low ratio diff from an auto or N/A would work. It's probably all academic anyway - the cost is bound to be double in the UK. Australian Lexus Soarer Club Forum: JZ-->T56 Australian Lexus Soarer Club Forum: UZ-->T56 Transmission Technologies - T56 specifications Quote Link to comment Share on other sites More sharing options...
bondango Posted September 20, 2009 Share Posted September 20, 2009 Easy for the Aussies, I suppose, because Holden use the T56 and they can be bought cheaply (until someone makes a JZ/UZ conversion and everybody wants one ). They are talking about "less than 2500 AUD" for the kit plus 1500 AUD for the gearbox (3000 AUD new). It's about 1.8 AUD to the pound at the moment. Would the conversion even make sense for a JZ, given that it's a double overdrive 'box? Perhaps a T56 with the higher 1st gear ratio and a low ratio diff from an auto or N/A would work. It's probably all academic anyway - the cost is bound to be double in the UK. Australian Lexus Soarer Club Forum: JZ-->T56 Australian Lexus Soarer Club Forum: UZ-->T56 Transmission Technologies - T56 specifications defo a great box Gareth, but the 2.66 1st gear ratio is a bit of a stinker. there are companys that make custom gearsets for the t56 though. theres also the TKO 500/600 which can be had in 5 speed with ratios similar to the w58. again when you weigh in all the costs, the v160 conversion still compares Quote Link to comment Share on other sites More sharing options...
garethr Posted September 21, 2009 Author Share Posted September 21, 2009 Played about with a gear ratio/speed calculator (idle curiosity ). Usable with a 4.083 diff? RPM 6,500 Tyre 255/40-17 [b]V160[/b] - Diff Ratio 3.266 [b]Ratio MPH[/b] 1 3.827 38.73 2 2.360 62.80 3 1.685 87.96 4 1.312 112.96 5 1.000 148.21 6 0.793 186.90 [b]T56 (1)[/b] - Diff Ratio 4.083 [b]Ratio MPH[/b] 1 2.970 39.92 2 2.070 57.27 3 1.430 82.90 4 1.000 118.55 5 0.800 148.19 6 0.620 191.21 [b]T56 (2)[/b] - Diff Ratio 4.083 [b]Ratio MPH[/b] 1 2.660 44.57 2 1.780 66.60 3 1.300 91.19 4 1.000 118.55 5 0.790 150.07 6 0.630 188.18 Quote Link to comment Share on other sites More sharing options...
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