2.5.0.1 - Engines in the 1900s are significantly weaker compared to version 2.4

[raichuP]

Hi there,
 
I just noticed that in the new version of the game, engines are much more weaker compared to the last version.
Attachments are the same 80x80mm I2 engine, both designed at Jan 1904, with most sliders at their default position, emissions sliders all left, size sliders adjusted so that they have the same size. You can see that engine's output dropped to only 1kW, 35Nm from 5kW, 50Nm in version 2.4.

       

[Eric.B]

Bounty #59 Sub-Component Rating Range https://www.ventdev.com/forums/showthread.php?tid=3841

V2.4.0.0 and older, sub-components only had a single value that had to work from 1900 to 2020. The game now has a range of values, generally starting small and getting bigger over time. So, in short, you were using 1970s I2 engine technology in 1900 in version 2.4.0.0 and older. Now you are using 1904 I2 technology.


I do plan on doing a little bit of tweaking to these numbers, but they will always likely be weaker than 2.4.0.0 and older in early game years, and stronger in later game years.

If you have a long save game with lots of data, that will be helpful.

[Eric.B]

To give you an idea of real world numbers. 1904 Winton Two Cylinder had a 14.72 KW 4261cc engine. This comes out to 3.4 kW per Liter. Your engine is at 1.2 kW / L. Considering the size/sliders of the engines, Some changes need to be made to get you into the 2-3KW range. But it's a far cry from 5KW found in pre bounty #59 for default sliders.


To give you an idea of more 1904 inline 2 Cylinders:
1904 Knox Two-Cylinder, 4.5L 11.9KW. (2.65kW/L)
1904 Humber 8.5 hp Twin-Cylinder 1.3L 6.3 kW ( 4.84kW/L)
1904 Rolls-Royce 10 hp 1.8L 9 kW (5kW/L)

[24K_xyf]

Sohc seems too strong.

[raichuP]

Bounty #59 Sub-Component Rating Range https://www.ventdev.com/forums/showthread.php?tid=3841

V2.4.0.0 and older, sub-components only had a single value that had to work from 1900 to 2020. The game now has a range of values, generally starting small and getting bigger over time. So, in short, you were using 1970s I2 engine technology in 1900 in version 2.4.0.0 and older. Now you are using 1904 I2 technology.


I do plan on doing a little bit of tweaking to these numbers, but they will always likely be weaker than 2.4.0.0 and older in early game years, and stronger in later game years.

If you have a long save game with lots of data, that will be helpful.

I see. This makes sense, but they are still way too weak compared to similar-sized engines in real world. For example:
1904 Peugeot Type 57, 652cc 4kW single-cylinder, 6.13kW/L. 
1901 Fiat 8 HP, 1082cc 7.3kW two-cylinder, 6.75kW/L. 

I guess smaller engines at the time could produce somewhat higher power density. 

Unfortunately I lost my game saves while trying to migrate to a new hard drive, some screenshots from 1900s are the only things that survived

[raichuP]

I guess smaller engines at the time could produce somewhat higher power density. 

A counter point to myself: 1905 Peugeot Type 64 has a 1817cc two-cylinder engine which produces only 7.3kW. I suppose torque is the key difference here.

[AstraMeccanica]

Bounty #59 Sub-Component Rating Range https://www.ventdev.com/forums/showthread.php?tid=3841

V2.4.0.0 and older, sub-components only had a single value that had to work from 1900 to 2020. The game now has a range of values, generally starting small and getting bigger over time. So, in short, you were using 1970s I2 engine technology in 1900 in version 2.4.0.0 and older. Now you are using 1904 I2 technology.


I do plan on doing a little bit of tweaking to these numbers, but they will always likely be weaker than 2.4.0.0 and older in early game years, and stronger in later game years.

If you have a long save game with lots of data, that will be helpful.

I see. This makes sense, but they are still way too weak compared to similar-sized engines in real world. For example:
1904 Peugeot Type 57, 652cc 4kW single-cylinder, 6.13kW/L. 
1901 Fiat 8 HP, 1082cc 7.3kW two-cylinder, 6.75kW/L. 

I guess smaller engines at the time could produce somewhat higher power density. 

Unfortunately I lost my game saves while trying to migrate to a new hard drive, some screenshots from 1900s are the only things that survived

I'd agree, some technical solutions seems to be unpowered compared to how effective they were despite being relatively new.