Gearbox and T-Case ratios and information Needed

[Brad]

Ok although uni sucks I need to build a data driven VB script. So I thought I may as well do something usefull.

What I am after is gearbox and T-case info.

For Example ( I know these are way wrong)

W52 Gearbox 1st 4.9, 2nd 3.2, 3rd 2.1 4th 1.0, 5th 0.81
Geardriven T-case - Low range 4.2 : 1 High range 1:1

And so on the more the better.

The end result will be a small programme where you select the gearbox, tcase, diff's and tyres and it will works out speeds, crawl ratios etc etc

Any info on tyre brands and actual rolling diameters would also be good.

if BFG 31 x 10.5 x 15 - 835mm dia

Anyway I guess you get the idea. I can just make it up if I can't find it but though I may as well try and get actual data and make something that is actually usefull..

[Area54]

Diameters or circumferential measurements?

GQ patrol (TD42 and TB42 motors) 5 speed manual gearbox FS5R50A

1 - 4.556
2 - 2.625
3 - 1.519
4 - 1.000
5 - .836
R - 4.245

GQ Patrol 2.8L diesel Gearbox FSR5R30A

1 - 4.061
2 - 2.357
3 - 1.490
4 - 1.000
5 - 0.862
R - 4.125

GQ Patrol Transfer case TX12A

H - 1.000
L - 2.020


Diff Ratios

3.9 - TI wagon and maverick XLT
4.1 - everything else
4.3 - utes
4.6 - 2.8 wagons



BFG MT 31x10x15 775mm
BFG MT 32x11x15 805mm
BFG MT 33x12x15 835mm

(all tyre measurements taken from my rigs on various rim sizes with respect to wear variances)

[ozy1]

sizes and specs of the BFG MT

http://www.bfgoodrichtires.com/assets/p ... _ta_km.pdf

also sizes on the Goodyear MTR, but it doesnt have overall diameters

LT235/85R16 120/116P WGL MT/R

LT235/75R15 104/101Q WGL MT/R

LT225/75R16 110/107P WGL MT/R

LT245/75R16 120/116P WGL MT/R

LT265/75R16 119/116P WGL MT/R

LT285/75R16 122/119P WGL MT/R

T315/75R16 121P WGL MT/R GY

LT305/70R16 118/115P WGL MT/R

30 X9.50R15LT 104Q WGL MT/R

31X10.50R15 109Q WLR MT/R GY

32X11.50R15 113Q WGL MT/R

33X12.50R15 108Q WGL MT/R

35X12.50R15 113Q WGL MT/R

37X12.50R15C WGL MT/R

[Brad]

Thnaks for that.. I ready need tyre dia's though.

Here is a link to the Excel version that we built to help gear the buggies and it sort of grew......

Now we are moving into VB.net and then it will all be web driven so there will be no need to down load anything.

http://www.offroadvw.net/exceldyno/

[ISUZUROVER]

The diameters are there - i.e. 33" or do you mean the rolling radius???

Surely you should be doing something a little less easy for a uni project?

[big red]

www.intercotire.com has all the sizes on swampers , boggers etc
you may find that usefull

[bogged]

Diff Ratios

3.9 - TI wagon and maverick XLT
4.1 - everything else

My Ti has 4.1 standard - Auto though.

[ozy1]

and i thought the 3L GQ's came out with 4.3's too

[big red]

GU wagon stuff

gearbox on 3.0td 4.2td FS5R50B
1-4.262
2-2.455
3-1.488
4-1.000
5-0.850
rev-3.971


auto on 3.0td
1-2.784
2-1.544
3-1.000
4-0.694
rev-2.275


gearbox on 4.8 petrol
1-4.085
2-2.353
3-1.426
4-1.000
5-0.881
rev-3.806


auto on 4.8P
1-3.540
2-2.264
3-1.471
4-1.000
5-0.834


gearbox on 2.8td
?


diffs
2.8td-4.625
3.0td-4.375
4.2td-3.900
4.8P-manual-4.375
4.8P-auto-3.545


transfer case-TX12A
all-high-1:1
all-low-2.02

[ozy1]

MQ 4 speed model F4W81A

1st - 3.519
2nd - 2.157
3rd - 1.449
4th - 1.000
Rev - 4.181

Auto model 3N71B
1st - 2.458
2nd - 1.458
top - 1.000
Rev - 2.182

Transfers
model T130A
high - 1.000
low - 2.220

Model T100L
high - 1.000
low - 2.074

avaliable diff ratios

3.364 P40LD, Canvas top LD
4.111 SD33LD, P40PU, P40HD, Canvas Top HD,
4.375 L28LD,
4.625 SD33HD, L28HD, SD33PU, L28PU, SD33 and L28 SW
3.900 P40SW

*LD = light duty
HD = Heavy Duty
SW = Station Wagon
PU = pick up

[big red]

GU ute stuff early models


gearbox on td42 coil DX and leaf DX + td42t leaf DX
1-4.556
2-2.624
3-1.590
4-1.000
5-0.836
rev-4.245

gearbox on td42t coil DX + td42t coil ST- FS5R50B
1-4.262
2-2.455
3-1.488
4-1.000
5-0.850
rev-3.971

diffs
td42 leaf DX-4.375
all else-4.111

transfer case-TX12A
high ratio-1:1
low ratio-2.02:1

[Nev62]

Mazda B2600/Ford Courier - Raider 1989-1993

Gear box

1st 3.730:1
2nd 2.158:1
3rd 1.396:1
4th 1:1
5th .816:1

T/C
high 1:1
low 2.21:1

Diff
4.44

4.778 on some non turbo 2.5lt desiels (very rare)

[Brad]

The diameters are there - i.e. 33" or do you mean the rolling radius???

Surely you should be doing something a little less easy for a uni project?

The quoted diameters are useless as they are wrong.

In relation to easy ...... have you had a look at the excel version ??

[AussieCJ7]

Heaps of different transmissions specs here

http://www.off-road.com/jeep/tech/transmission02.html

Click on the Transmission Identification links for Ford GM IH and Dodge boxes

[-Scott-]

VB - is that the Commodore or the beer?

Easy? The mathematics is high school stuff - I presume the exercise is about programming the algorithms and making a user-friendly interface.

If you have to do something inane at uni, make it as interesting as possible!

Cheers,

Scott

(with 7 pages of "Cooper Tires" engineering data on his desk - I'm not typing that in!)