Shorter gears for 901 |
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Shorter gears for 901 |
grantsfo |
Sep 20 2006, 10:14 AM
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#1
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Arrrrhhhh! Group: Members Posts: 4,327 Joined: 16-March 03 Member No.: 433 Region Association: None |
My original 901 (never been rebuilt) tranny lost second gear. So I have found a loaner 901 transmission while I have mine rebuilt. I'm going to go for shorter gears. Can somone help educate me to options around shorter gears for a 901 transmission. I'm having a shop do the work but I want to educate myself to what track drivers think works best for gears. I have a 2.4 that makes something around 160 to 170 HP and use 265/45/16 tires in the rear. I will mostly be just having fun doing track days.
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North Bay 914 |
Sep 20 2006, 11:13 AM
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#2
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Senior Member Group: Members Posts: 509 Joined: 25-January 05 Member No.: 3,504 |
I agree, M,S,X. the letter codes for the ratios 3, 4, and the 5th gear ratios
http://www.pelicanparts.com/techarticles/m...anny_ratios.htm Tire Diameter: 22.5 inches Final Drive: 7 : 31 901 TRANSMISSION Speed (MPH) at RPM Name Number Ratio 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 A 1 11 : 34 (3.091) 10 12 15 17 20 22 24 27 29 32 34 37 39 AA 1 12 : 34 (2.833) 11 13 16 19 21 24 27 29 32 35 37 40 43 B 1 14 : 37 (2.643) 11 14 17 20 23 26 29 31 34 37 40 43 46 C 1 15 : 36 (2.400) 13 16 19 22 25 28 31 35 38 41 44 47 50 D 1 16 : 35 (2.188) 14 17 21 24 28 31 35 38 41 45 48 52 55 E 2 17 : 34 (2.000) 15 19 23 26 30 34 38 42 45 49 53 57 60 F 2 18 : 34 (1.889) 16 20 24 28 32 36 40 44 48 52 56 60 64 G 2 18 : 33 (1.833) 16 21 25 29 33 37 41 45 49 54 58 62 66 GA 2 18 : 32 (1.778) 17 21 26 30 34 38 43 47 51 55 60 64 68 H 2 19 : 32 (1.684) 18 22 27 31 36 40 45 49 54 58 63 67 72 HA 2 20 : 32 (1.600) 19 24 28 33 38 43 47 52 57 61 66 71 76 I 2,3 20 : 31 (1.550) 20 24 29 34 39 44 49 54 59 63 68 73 78 J 3 21 : 31 (1.476) 20 26 31 36 41 46 51 56 61 67 72 77 82 K 3 21 : 30 (1.429) 21 26 32 37 42 48 53 58 63 69 74 79 85 L 3 22 : 30 (1.364) 22 28 33 39 44 50 55 61 67 72 78 83 89 M 3,4,5 22 : 29 (1.318) 23 29 34 40 46 52 57 63 69 75 80 86 92 N 3,4,5 23 : 29 (1.261) 24 30 36 42 48 54 60 66 72 78 84 90 96 O 3,4,5 23 : 28 (1.217) 25 31 37 43 50 56 62 68 74 81 87 93 99 P 3,4,5 23 : 27 (1.174) 26 32 39 45 52 58 64 71 77 84 90 97 103 Q 3,4,5 24 : 27 (1.125) 27 34 40 47 54 60 67 74 81 87 94 101 107 R 4,5 25 : 27 (1.080) 28 35 42 49 56 63 70 77 84 91 98 105 112 S 4,5 25 : 26 (1.040) 29 36 44 51 58 65 73 80 87 94 102 109 116 T 4,5 26 : 26 (1.000) 30 38 45 53 60 68 76 83 91 98 106 113 121 U 4,5 26 : 25 (0.962) 31 39 47 55 63 71 79 86 94 102 110 118 126 V 4,5 27 : 25 (0.926) 33 41 49 57 65 73 82 90 98 106 114 122 131 W 4,5 27 : 24 (0.889) 34 43 51 60 68 77 85 94 102 111 119 128 136 X 4,5 28 : 24 (0.857) 35 44 53 62 71 79 88 97 106 115 123 132 141 Y 4,5 28 : 23 (0.821) 37 46 55 64 74 83 92 101 110 120 129 138 147 Z 4,5 29 : 23 (0.793) 38 48 57 67 76 86 95 105 114 124 133 143 152 ZA 4,5 29 : 22 (0.759) 40 50 60 70 80 90 100 110 120 130 139 149 159 ZD 4,5 31 : 22 (0.710) 43 53 64 75 85 96 106 117 128 138 149 160 170 |
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