Technical data Resources (Engines and gearboxes)

[rookie_one]

All added! Thank you!

[al_batros]

Historical Gearboxes / Nerd Alert

Eaton Twin Splitter Transmission (Europe), 1986 to 2000(?), used in MAN, DAF, IVECO, ERF, Foden, Seddon, etc.
Eaton "Snapper" Transmission (US), from ca. 1975

These gearboxes are "different" as they only have 4 gears (+ 1 reverse), BUT each gear is split 3 times!
So it´s not the "usual" Hi/Lo Split, but a low/med/high split.
All that is needed are 4 "real" stick-shifting gear changes - and everything else is done with the low/medium/high selector.
Basically, anything beyond approx. 40 km/h would be done without shifting the gear lever, just by using the splitter

From what I could gather researching this gearbox, the driver either "got it" and loved it - or hated it!

For some discussions about these gearboxes, head over to trucknetuk.com. They have multiple threads that cover this box.
https://www.trucknetuk.com/t/lorries-wi ... s/102592/7 (includes some diagrams of the selector-settings and a nice description on how to handle them in the first couple of posts)

The Twin Splitter transmission was announced in Europe in June ´85 and launched 1986.
https://archive.commercialmotor.com/art ... ton-launch
The thread in TruckNetUk says it seems to have been available only up to Euro II emissions trucks, as it didn´t pass the Euro III noise regulations.

The US Equivalent is the "TS-1312A" "Snapper". max 1300 lb-ft, press article from 1975:
https://archive.commercialmotor.com/art ... ns-snapper

As the gear ratios were a bit hard to come by, here we go...
(A pdf of the service manual can be found "on the internet", but it doesn´t contain the gear ratios...)

TS 16612 - Direct Drive, 12 speed, 14.88:1
(Source: https://archive.commercialmotor.com/art ... g-eurostar )
Ratings up to 1600 / 1650 lb-ft / 2200 Nm

Code: Select all

 	# forward gears * overall:	14.88	Step:	~1.2782
 	ratios_forward[	 0	]:	14.88 # 1-I
 	ratios_forward[	 1	]:	11.59 # 1-II
 	ratios_forward[	 2	]:	 9.10 # 1-III
 	ratios_forward[	 3	]:	 6.98 # 2-I
 	ratios_forward[	 4	]:	 5.44 # 2-II
 	ratios_forward[	 5	]:	 4.27 # 2-III
 	ratios_forward[	 6	]:	 3.40 # 3-I
 	ratios_forward[	 7	]:	 2.65 # 3-II
 	ratios_forward[	 8	]:	 2.08 # 3-III
 	ratios_forward[	 9	]:	 1.63 # 4-I
 	ratios_forward[	10	]:	 1.27 # 4-II
 	ratios_forward[	11	]:	 1.00 # 4-III

 	# reverse gears * 0.929
 	ratios_reverse[	 0	]:	-13.82 # R-I
 	ratios_reverse[	 1	]:	-10.76 # R-II  # -7.76=Typo
 	ratios_reverse[	 2	]:	 -8.45 # R-III

TSO 16612 - Overdrive, 12 speed, 10.9 to 0.78
(Source: https://archive.commercialmotor.com/art ... o-specify- )
Ratings up to 1600 / 1650 lb-ft / 2200 Nm
From the linked article it seems that the Overdrive gearbox only has one reverse gear. Therefore I have commented out the 2 other (calculated) ratios.

Code: Select all

 	# forward gears * overall:	13.97	Step:	~1.2698
 	ratios_forward[	 0	]:	10.90 # 1-I
 	ratios_forward[	 1	]:	 8.78 # 1-II
 	ratios_forward[	 2	]:	 6.82 # 1-III
 	ratios_forward[	 3	]:	 5.31 # 2-I
 	ratios_forward[	 4	]:	 4.27 # 2-II
 	ratios_forward[	 5	]:	 3.32 # 2-III
 	ratios_forward[	 6	]:	 2.58 # 3-I
 	ratios_forward[	 7	]:	 2.08 # 3-II
 	ratios_forward[	 8	]:	 1.62 # 3-III
 	ratios_forward[	 9	]:	 1.24 # 4-I
 	ratios_forward[	10	]:	 1.00 # 4-II
 	ratios_forward[	11	]:	 0.78 # 4-III

 	# reverse gears * 	0.926
 	ratios_reverse[	 0	]:	-10.09 # R-I
 	# ratios_reverse[	 1	]:	-8.13 # R-II
 	# ratios_reverse[	 2	]:	-6.31 # R-III

TS-1312A "Snapper"
(Source: https://archive.commercialmotor.com/art ... ns-snapper )
Rating: max 1300 lb-ft
(The ratios I found listed in one of the "Eaton Transmission Specifications Catalog" seem to be "odd" and missing some details...)

Code: Select all

 	# forward gears * overall:	11.19	Step:	~1.2455
 	ratios_forward[	 0	]:	11.19 # 1-I
 	ratios_forward[	 1	]:	 8.97 # 1-II
 	ratios_forward[	 2	]:	 7.22 # 1-III
 	ratios_forward[	 3	]:	 5.84 # 2-I
 	ratios_forward[	 4	]:	 4.68 # 2-II
 	ratios_forward[	 5	]:	 3.77 # 2-III
 	ratios_forward[	 6	]:	 2.99 # 3-I
 	ratios_forward[	 7	]:	 2.40 # 3-II
 	ratios_forward[	 8	]:	 1.93 # 3-III
 	ratios_forward[	 9	]:	 1.55 # 4-I
 	ratios_forward[	10	]:	 1.24 # 4-II
 	ratios_forward[	11	]:	 1.00 # 4-III

 	# reverse gears * 	0.909
 	ratios_reverse[	 0	]:	-10.17 # R-I
 	ratios_reverse[	 1	]:	 -8.16 # R-II
 	ratios_reverse[	 2	]:	 -6.56 # R-III

Have fun !

[Monstaaaa]

Hi, I noticed that your Google Drive doesn’t have this useful document about Scania’s new (2020) V8 engines: 770, 660, 590 and 530. You can find it here: https://mb.cision.com/Main/209/3203335/1311529.pdf. It’s available on Scania’s website at https://www.scania.com/group/en/home/ne ... a-v8-range. This document is similar to P13X01EN_V8_range_tcm40-397279.pdf but includes the newer engines.

[rookie_one]

added, thanks

[Monstaaaa]

Is there pdf files on new Scania Super 11 engine?

[Aji Damarjati]

Excuse me for tagging @rookie_one

Here are performance curve graphs for the new Scania Super 11/DC11 Super 5 cylinder 11 litre engine. Super 11 available for Euro 4, 5, and 6. They are sharing the same performance curves across all the ratings and emission standards which is 950-1360 rpm for the peak torque and 1800 rpm for the rated power.

DC11 100 350 hp Euro 6
[ external image ]

DC11 101 390 hp Euro 6
[ external image ]

DC11 102 430 hp Euro 6
[ external image ]

Enjoy

[rookie_one]

Thank you!

[rookie_one]

Updated the link, switched from Google Drive to Proton Drive, don't really want to give money to google with everything happening lately

[WatsonPDb101]

seems all excel files are dead in the proton drive

[rookie_one]

Possible ,unfortunately those file are lost, no way of restoring them