1 Liter Challenge

[CNCharger]

Lets have a challenge to see who can make the most powerful 1L engine. You can use any number of cylinders, can be turbo charged. Scoring is as goes.

Horsepower x LBFT of Torque + every cubic inch below 61 cubic inches
One turbo reduces score to 75%, two reduces to 50%.

Lets go.

[CNCharger]

here is my entry
https://steamcommunity.com/sharedfiles/filedetails/?id=3039786399

162,071.685 points

[Medu Salem]

Well... you didn't say anything about quality or Octane xD

https://steamcommunity.com/sharedfiles/filedetails/?id=3039876153
835,437.600 points.

Could probably squeeze out a few more points if I traded HP for torque or vice versa and finetuned the bore/stroke further. I wanted to get to 1500hp... But... meh. So I am sure someone with more patience will likely beat it.

I love how obviously bugged the compressor percentage is. Just changing the turbo settings 1 tick in any direction on any of the turbo related sliders and the thing explodes. Kinda makes it difficult to find another sweetspot and if there is even more in the turbo. xD

[edit] After posting I also noticed that I forgot to change the year of the engine family to 2020. But setting it to 2020 doesn't change any of the power/torque.
Also reduced the weight of the balance shaft to see if it had any influence, but nope. Only increased the throttle responsiveness.
Overall the changes I made offscreen reduced the weight of the engine by another 4kg for a final total weight of 91kg (ridiculous given how much power it outputs).[/edit]

Anyway even with standard quality/octane I initially had one that was about 170,000 points but sadly instead of making a copy I changed it to this one above.


Once they drop the Elisbury update soon I bet it will all be different again anyway and the challenge should actually define emission limits as well because that will actually be the real challenge. ^^

Also 75% reduction for 1 turbo kinda isn't fair considering that 1 turbo more than doubles the HP / torque in the game. So naturally aspirated always suck in the scoring.
Also regarding 2 or more turbos... due to the way the game calculates it from my experience they only start to pay off after reaching a certain engine capacity where 1 turbo can't handle the air flow anymore. That's the reason why I went with 1 turbo even tho I6 would allow for 2. I tried to make a 2-turbo clone, but I couldn't even get it to match the power of the 1 turbo one because the graph freaks out.

[MirkoC407]

Indeed, some more rules on quality and percentage limits for the mechanical components and flow path would be nice.

[CNCharger]

Originally posted by MirkoC407:

Indeed, some more rules on quality and percentage limits for the mechanical components and flow path would be nice.

Trynna see how much power one could get outta 1L engine. Maybe shoulda thought about it, but oh well.

[CNCharger]

Originally posted by Medu Salem:

Well... you didn't say anything about quality or Octane xD

https://steamcommunity.com/sharedfiles/filedetails/?id=3039876153
835,437.600 points.

Could probably squeeze out a few more points if I traded HP for torque or vice versa and finetuned the bore/stroke further. I wanted to get to 1500hp... But... meh. So I am sure someone with more patience will likely beat it.

I love how obviously bugged the compressor percentage is. Just changing the turbo settings 1 tick in any direction on any of the turbo related sliders and the thing explodes. Kinda makes it difficult to find another sweetspot and if there is even more in the turbo. xD

[edit] After posting I also noticed that I forgot to change the year of the engine family to 2020. But setting it to 2020 doesn't change any of the power/torque.
Also reduced the weight of the balance shaft to see if it had any influence, but nope. Only increased the throttle responsiveness.
Overall the changes I made offscreen reduced the weight of the engine by another 4kg for a final total weight of 91kg (ridiculous given how much power it outputs).[/edit]

Anyway even with standard quality/octane I initially had one that was about 170,000 points but sadly instead of making a copy I changed it to this one above.


Once they drop the Elisbury update soon I bet it will all be different again anyway and the challenge should actually define emission limits as well because that will actually be the real challenge. ^^

Also 75% reduction for 1 turbo kinda isn't fair considering that 1 turbo more than doubles the HP / torque in the game. So naturally aspirated always suck in the scoring.
Also regarding 2 or more turbos... due to the way the game calculates it from my experience they only start to pay off after reaching a certain engine capacity where 1 turbo can't handle the air flow anymore. That's the reason why I went with 1 turbo even tho I6 would allow for 2. I tried to make a 2-turbo clone, but I couldn't even get it to match the power of the 1 turbo one because the graph freaks out.

How does one turbo more than double the horsepower?

[Medu Salem]

Originally posted by CNCharger:

How does one turbo more than double the horsepower?

Well, it depends mostly on your boost setting, but even on the default 1 bar it almost doubles the horse power in a decent setup. I think you exceed doubling the hp when you set it to 1.2-1.3 bar. Everything beyond is even crazier.

But you can even see it in your own posted engine. Do you see the dotted power and torque curves in the graph that are much lower?
Those are the power/torque curves the engine would actually have for the same engine settings if it were Naturally Aspirated, so... without the turbo. (They are usually named Torque NA and Power NA, but sometimes the game forgets to update it to "NA" and rather calls it "autoheld")

So all the area above the dotted curves is actually what you gain from the turbo. So even your turbo setup more than doubles the output, because without the turbo you put on top it would only have somewhat around 160ish hp and around 100 lbft.

The latter are actually pretty realistic values you'd find on the naturally aspirated 1000cc motorbike engines. At least I remember the Honda CBR series to be in that league.

[CNCharger]

Originally posted by Medu Salem:

Originally posted by CNCharger:

How does one turbo more than double the horsepower?

Well, it depends mostly on your boost setting, but even on the default 1 bar it almost doubles the horse power in a decent setup. I think you exceed doubling the hp when you set it to 1.2-1.3 bar. Everything beyond is even crazier.

But you can even see it in your own posted engine. Do you see the dotted power and torque curves in the graph that are much lower?
Those are the power/torque curves the engine would actually have for the same engine settings if it were Naturally Aspirated, so... without the turbo. (They are usually named Torque NA and Power NA, but sometimes the game forgets to update it to "NA" and rather calls it "autoheld")
So all the area above the dotted curves is actually what you gain from the turbo. So even your turbo setup more than doubles the output, because without the turbo you put on top it would only have somewhat around 160ish hp and around 100 lbft.

Ah, ok. Not quite sure what a bar is, is that similar to PSI?

[Medu Salem]

Originally posted by CNCharger:

Ah, ok. Not quite sure what a bar is, is that similar to PSI?

Yea, it is just a different measurement for boost pressure. 1 bar is equal to 14.5 PSI or something.

[CNCharger]

Ok, since there was a lack of rules in the complaints:
-Unleaded gas only: regular, premium or supreme.
-No quality buffing.
-For every cubic inch below 61, add one point to horsepower BEFORE multiplying.
-Turbo scoring will remain the same, don't want to open that can of worms.
-Engine must take 0% damage, all green across all internals. Calvinator has been doing this for years, not as hard as you think. Will provide more screenshots later.

[WildKarrde]

Originally posted by CNCharger:

[quote=Medu
How does one turbo more than double the horsepower?

Single turbo's are actually better in most cases for max output. Twin turbo's are generally used in sequence to reduce turbo lag.

[Medu Salem]

Originally posted by CNCharger:

Ok, since there was a lack of rules in the complaints:
-Unleaded gas only: regular, premium or supreme.
-No quality buffing.
-For every cubic inch below 61, add one point to horsepower BEFORE multiplying.
-Turbo scoring will remain the same, don't want to open that can of worms.
-Engine must take 0% damage, all green across all internals. Calvinator has been doing this for years, not as hard as you think. Will provide more screenshots later.

With those terms..

https://steamcommunity.com/sharedfiles/filedetails/?id=3040007609
275,796.41 points.
All green.

https://steamcommunity.com/sharedfiles/filedetails/?id=3040018960
292,502.43
Not all green. Yellowish Knock... BUT it still says 0% damage... don't know what's with that other than that the coloring must be a bug. Even has the same total engine reliability as the slightly worse version. xD


I used Supreme 98 RON and 0 quality on everything. Staying within the 0% damage isn't really problematic since the engine is just small 1 litre, the components rev almost forever.

Might update a few times. It is really nastily thrown together in 5 minutes hahaha. What a horrible needle. xD

I am sure I can still make a bigger turbo or get some more hp from better bore/stroke ratio because the valves are choking a bit, but I would likely have to fiddle around an hour to find another sweetspot further up the curve.

[MirkoC407]

Originally posted by CNCharger:

How does one turbo more than double the horsepower?

Look at durability and flow stats - that is a dragster engine. Lasts 402 metres - if you are unlucky not even so far. Just blow in more food than it can eat.

[CNCharger]

Originally posted by MirkoC407:

Originally posted by CNCharger:

How does one turbo more than double the horsepower?

Look at durability and flow stats - that is a dragster engine. Lasts 402 metres - if you are unlucky not even so far. Just blow in more food than it can eat.

this one is a bit more of a doozy. Getting the flow charts to play nice has been a headache so as long as they don't blow themselves up or get damaged, its all good.

[CNCharger]

Originally posted by Medu Salem:

Originally posted by CNCharger:

Ok, since there was a lack of rules in the complaints:
-Unleaded gas only: regular, premium or supreme.
-No quality buffing.
-For every cubic inch below 61, add one point to horsepower BEFORE multiplying.
-Turbo scoring will remain the same, don't want to open that can of worms.
-Engine must take 0% damage, all green across all internals. Calvinator has been doing this for years, not as hard as you think. Will provide more screenshots later.

With those terms..

https://steamcommunity.com/sharedfiles/filedetails/?id=3040007609
275,796.41 points.
All green.

https://steamcommunity.com/sharedfiles/filedetails/?id=3040018960
292,502.43
Not all green. Yellowish Knock... BUT it still says 0% damage... don't know what's with that other than that the coloring must be a bug. Even has the same total engine reliability as the slightly worse version. xD


I used Supreme 98 RON and 0 quality on everything. Staying within the 0% damage isn't really problematic since the engine is just small 1 litre, the components rev almost forever.

Might update a few times. It is really nastily thrown together in 5 minutes hahaha. What a horrible needle. xD

I am sure I can still make a bigger turbo or get some more hp from better bore/stroke ratio because the valves are choking a bit, but I would likely have to fiddle around an hour to find another sweetspot further up the curve.

Knock will actually damage your engine. Its over compression, not enough octane. I would lower the compression or delay (doesn't like me saying r-trd) the timing for the second engine to fix that. Knock is actually quite serious, and in modern engines, a knock sensor can tell your engine to misfire to prevent knock, as it did in the Traverse that I had a loan that is finally off my hands.

[Medu Salem]

Originally posted by CNCharger:

Knock will actually damage your engine. Its over compression, not enough octane. I would lower the compression or delay (doesn't like me saying r-trd) the timing for the second engine to fix that. Knock is actually quite serious, and in modern engines, a knock sensor can tell your engine to misfire to prevent knock, as it did in the Traverse that I had a loan that is finally off my hands.

In reality maybe it might damage the engine. But the game is a number simulator and in many things still far from reality. If the game says 0% reduction of reliability (meaning no damage taken) I can live with that as it fulfills the criteria. At least it doesn't complain about knocking in the notifications. xD

Anyway in reality all the engines we are posting here in this thread would be undrivable, not to say terrible. Because what good is an engine where the turbo basically only kicks in the final 500-700 RPM. Not like you can comfortably drive that peaky. xD