Most powerful 393cc i4 possible

[Reaper392]

That problem should be fixed in B1322, that's why I'm asking.

If engines saved during a different build performing significantly differently after a couple of tests is the bug you are looking to fix I still have it in build 1322.

In the spinning faster tutorial scenario my engine gets ~172bhp on the first couple of tests, then drops down to ~162bhp after that, even if you change the settings back to where they were. It seems to happen one test after there is either a score improvement or after the compression is changed (not sure which is the relevant change). I cant remember what build the engine was originally created in but it would be one of the three different builds that were released in the latest major update.


I believe this is the save file for the engine if you want it:

Tutorial4.lua

(38.7 KiB) Downloaded 186 times

Increasing the compression and then changing the ignition timing should recreate the problem

[SamSheepDoq]

Here is my 393cc baby monster.

I was only able to get 201 HP. Full boost is at 10,300 rpm though! haha

Reduce that exhaust size down to about 2.50" and I'll bet you did beat him. Too big of an exhaust seems to lower HP (if you're not outputting that amount of power).

[JP95ZM6]

That problem should be fixed in B1323, that's why I'm asking.

I am running Launcher version 49, Game Build 1198. That's the version to which it last auto updated.


EDIT: Searched and found B1323, downloading and will try to reproduce the issue on that. Thanks.

2nd Edit: OK, I can 99% confidently confirm that my issue will not repeat in B1323. I only managed 196 HP this time, so my parameters must be slightly different, but still on the very edge of knock. And the saved file runs the same. That's a fix I can really appreciate. Thanks for the slightly off topic help.

Back on topic:
Hitting a peak power in this challenge seems realistically complex, I like that. For example, I optimized the A/R ratio, then compression and timing. When I went back and rechecked the A/R ratio, the ideal setting had changed by 3 clicks. Still within one HP, I had to watch the red/green to know. I know that can happen in a real engine due to slightly different BMEP and exhaust temperature, but seeing it here impressed me.

Pretender, is it cool to discuss the specific settings we are using, maybe after a while longer so we don't spoil the game? I'd eventually love to know what the winning formula was, if the genius behind it doesn't mind sharing. I'm sure I'd learn something.

Another hour and the best I can get back to is 197 at 10,300 RPM.

[JohnnyOnTheSpot]

Here is my 393cc baby monster.

I was only able to get 201 HP. Full boost is at 10,300 rpm though! haha

Reduce that exhaust size down to about 2.50" and I'll bet you did beat him. Too big of an exhaust seems to lower HP (if you're not outputting that amount of power).

I played around with exhaust diameters and they plateaued around 3 inches IIRC. I decided upon 6" just because it looked absurd lol. No power loss from it surprisingly

[SamSheepDoq]

I played around with exhaust diameters and they plateaued around 3 inches IIRC. I decided upon 6" just because it looked absurd lol. No power loss from it surprisingly

Ah, I noticed it when I took a try. Oh well.

Here is my attempt at it.

Max 393 Power.png (747.95 KiB) Viewed 2248 times

[dchbrown]

I could only get to 200hp