Auto Gearbox.

[Goon]

Hey people

Once again asking a question, what i want to know is if anybody would know the speed ratio for each gear in the trimatic gearbox. 1st - 0 - 60 and 2nd to60 - 80 ?

Thanks..

ps. i haven't tested the above yet..

[vkberlina]

here you go this is hopefully what your after

I can do a more specific calculation if you can supply your exact Rim & Tire size as well as diff ratio you can see what I set below. These are the sorts of calculations you do when you want to pic a camshaft for your car so you can see your RPM drop and what power band your cam needs to be in.

Gear 1 2 3 Final
Ratios: 2.540 1.600 1.000 3.080

RPM Limit: 5600
RPM @Peak Power: 4000
Tyre Size: 225/65 x 15
Tyre Diameter: 673.50 mm
Tyre Circumference: 2115.86 mm


Gear Km/h per 1000 RPM Km/h @4000 RPM Km/h @5600 RPM
--------------------------------------------------------
1 16.23 65 91
2 25.76 103 144
3 41.22 165 231

Km/h RPM (in Gears)
-------------------------------
1 2 3
-------------------------------
10 616 388 243
20 1232 776 485
30 1849 1165 728
40 2465 1553 970
50 3081 1941 1213
60 3697 2329 1456
70 4314 2717 1698
80 4930 3105 1941
90 5546 3494 2184
100 3882 2426
110 4270 2669
120 4658 2911
130 5046 3154
140 5435 3397
150 3639
160 3882
170 4124
180 4367
190 4610
200 4852
210 5095
220 5337
230 5580

Gear Change RPM drop (change @4000) RPM drop (change @5600)
-------------------------------------------------------------
1 -> 2 -1480 (to 2520) -2072 (to 3528)
2 -> 3 -1500 (to 2500) -2100 (to 3500)


cheers
Scott

[Goon]

Cheers Mate