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Author Topic: Gear and Difs RATIO  (Read 4329 times)
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archigraphe
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« on: January 23, 2013, 07:31:21 PM »

HI,

The 1300 gearbox I would fit on my car comme from a Serie 2 1300 Beta.

The difs ratio from this car is different of the first serie.

So, I only know the ratio from the first serie coupé they are :

2000 : 14/53 : 3.78
1800 : 14/55 : 3.92
1600 : 14/57 : 4.07
1300 : 13/58 : 4.46

Could you confirm this ratios for late Beta :

2000ie  : 14/53 : 3.78
2000vx : 19/62 : 3.26
TREVI VX : 19/65 : 3.42

The ratio seems different on some model,
like the first gear on some beta, or the fifth gear between the trevi and coupé VX.

I'm looking for a short box on the first 4 gear and like an overdrive on the 5th for the highway ralliement...



* Lancia BETA Gearbox Ratios.jpg (89.69 KB, 730x488 - viewed 1311 times.)
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lukasdeopalenica
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« Reply #1 on: January 23, 2013, 10:17:22 PM »

The beta instruction book from 1983 says:
1300-   14/59 (4,214)
1600-   14/55 (3,929)
2000IE- 18/65 (3,611)
VX-      19/62  (3,263)

whereas gearbox ratios are:
1st: 3,5
2nd: 2,235
3rd: 1,522
4th: 1,152
5th: 0,925
R:    3,071
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Lancia Beta HPE 2000i.e. '82 rosso corsa
SAAB 900i 16V Aero, '93 solid black
Subaru Outback 3.0R
Honda CB125 K6 '76 electric blue
Specialized Epic & Stumpjumper
archigraphe
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« Reply #2 on: January 25, 2013, 05:04:31 PM »

Ok ,

so the diffs are very different between first serie and others....

Have you the 83 instruction book, Can you partage it?

Or it is downloadable?

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lukasdeopalenica
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« Reply #3 on: January 25, 2013, 08:39:49 PM »

I have a copy and I surely can make a pdf. Just please indicate me the sharepoint where I can load it.
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Lancia Beta HPE 2000i.e. '82 rosso corsa
SAAB 900i 16V Aero, '93 solid black
Subaru Outback 3.0R
Honda CB125 K6 '76 electric blue
Specialized Epic & Stumpjumper
archigraphe
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« Reply #4 on: January 27, 2013, 04:36:28 PM »

so the last version of the file.


* Gear Ratio Lancia BETA pour forum.jpg (95.38 KB, 1024x663 - viewed 1180 times.)
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lukasdeopalenica
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« Reply #5 on: August 27, 2013, 08:24:52 PM »

Refreshing a bit the topic I would like to ask you Guys if there is a method of distinguishing the diff ratios without dismantling the gearbox? Any markings on the housing etc? As far as I remember my fiat 131 supermirafiori has painted diff ratio on its housing.
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Lancia Beta HPE 2000i.e. '82 rosso corsa
SAAB 900i 16V Aero, '93 solid black
Subaru Outback 3.0R
Honda CB125 K6 '76 electric blue
Specialized Epic & Stumpjumper
archigraphe
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« Reply #6 on: August 28, 2013, 01:43:11 PM »

Humm..

Some Box have the diffs engraved on it
Some haven't....

So, maybe with the production number.

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lukasdeopalenica
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« Reply #7 on: August 28, 2013, 02:44:48 PM »

Have you already replaced your gearbox? I just realised that mine probably comes from a 1.6 model. I made some calculations and compared with satnav readings. The results are I reach only 100km/h at 3300rpm at 5th gear Sad (while speedo shows only about 70 - speedo driven shaft came from 2.0ie version) The proper speed at the proper diff should be 111km/h.
I have another gearbox definitely from 2.0ie model, but before I installed the wrong one I had no idea about it...
Is any way to swap just the differenial without removing the whole gearbox/drivetrain? I know that the Haynes says no way...
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Lancia Beta HPE 2000i.e. '82 rosso corsa
SAAB 900i 16V Aero, '93 solid black
Subaru Outback 3.0R
Honda CB125 K6 '76 electric blue
Specialized Epic & Stumpjumper
Nigel
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« Reply #8 on: September 03, 2013, 10:49:57 PM »

Have you already replaced your gearbox? I just realised that mine probably comes from a 1.6 model. I made some calculations and compared with satnav readings. The results are I reach only 100km/h at 3300rpm at 5th gear Sad (while speedo shows only about 70 - speedo driven shaft came from 2.0ie version) The proper speed at the proper diff should be 111km/h.
I have another gearbox definitely from 2.0ie model, but before I installed the wrong one I had no idea about it...
Is any way to swap just the differenial without removing the whole gearbox/drivetrain? I know that the Haynes says no way...

You can remove both gearbox shafts in-situ,as I have done to replace bearings,
but you can't remove the diff this way. The whole thing has to come out.
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1984 2.0 Carb HPE [ex Aus] Silver
2007 Mazda 6 2.3 [current daily,highly recommended]
The past:
1980 2.0 HPE White in South Africa [hope it survives!]
1976 1.6 Coupe lancia Blu [PFG 76R] [probably deceased]
oh,and an Uno Turbo 1992 also in SA [stolen,never recovered]
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