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Direct fuel injection system failure : no biggie


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I./JG52_Woutwocampe
Posted

In more than 3500 hours of play, I suffered damage to direct fuel injection system 3 times or 4. At most 5 times.

 

However, I have never felt ANY performance drop from my 109/190. Revs, MP where fine, no noticeable speed or climb loss. I was expecting maybe to overheat my engine more easily because of the lower amout of fuel in the mixture? I just got this message in my Kurfurst, 20 minutes ago, still took down many Tempests and Thunderbolts. Appart from the technochat message, NO difference.

 

I aint no engineer but I'll be damned if 'direct fuel injection system failure' usually doesnt do anything.

 

 

354thFG_Drewm3i-VR
Posted

This is a known issue with all of the inline engine planes.

I./JG52_Woutwocampe
Posted (edited)
14 hours ago, drewm3i-VR said:

This is a known issue with all of the inline engine planes.

 

Please elaborate, as not all inline engines have direct fuel injection.

 

What is the known issue exactly?

Edited by I./JG52_Woutwocampe
354thFG_Drewm3i-VR
Posted (edited)
On 8/12/2022 at 7:27 AM, I./JG52_Woutwocampe said:

 

Please elaborate, as not all inline engines have direct fuel injection.

 

What is the known issue exactly?

Leaking coolant/oil or overheating almost never killing any in-line engine.

Edited by drewm3i-VR
Posted
7 hours ago, drewm3i-VR said:

Leaking coolant/oil or overheating almost never killing any in-line engine.

All coding went into historic reasons why ww2 air egines got toasted, like time to expire and recover, now that was the real problem that real pilots had to be concerned about, like when you play mariokart.

Posted

Doesn't the direct fuel injection system break apart after 3500 hours?

Posted (edited)

One would think that a bullet into the injection system would cause an immediate high pressure fuel leak that would very quickly start a major conflagration in the engine bay.

 

I don't know the DB engine's operating fuel pressure, but if it's anything like an automotive system it is not a trivial number.

 

Even if just the barometric sensor was knocked out without a fuel leak, the engine likely would revert to a full rich condition which would be very messy at high altitude.

Edited by BlitzPig_EL
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I./JG52_Woutwocampe
Posted (edited)
12 hours ago, drewm3i-VR said:

Leaking coolant/oil or overheating almost never killing any in-line engine.

 

In this regard, I agree that leaks in this game are not significant enough for an engine especially inline engines.

 

In fact, I'm so aware of it that I myself started the topic about coolant and oil leaks being too trivial in complaints more than a year ago. 

 

I will assume that the direct fuel injection system damage is just a technochat message and has no impact on your engine then.

 

Also, @BlitzPig_ELmakes a really good point about fuel pressure. Its a fact that direct fuel injection systems work at an higher fuel pressure than indirect fuel injection. So damage to the direct injection system would likely be a real fiery mess, mighty fast. Probably too fast for you to have the time to notice a performance drop.

 

 

Edited by I./JG52_Woutwocampe
  • Upvote 1
Posted (edited)

According to Wikipedia (which isn't always a great source for specs like these) the DB605 engine had a Bosch direct fuel injection system that supplied "up to" 90 bar of pressure, which is around 1300 psi (per google). A leak in the direct fuel injection system supplying that amount of pressure would make a big mess indeed, fast. 

Edited by Skrimps
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Posted

Maybe it'll be fixed when they release the new fuel system they're working on. 

I./JG52_Woutwocampe
Posted
10 hours ago, Soilworker said:

Maybe it'll be fixed when they release the new fuel system they're working on. 

 

I doubt it. Looks more related to the engine damage model to me.

 

We'll see. Maybe you're right.

 

But I've said it before and I'll say it again, engine damage models could really use an improvement.

Posted
20 hours ago, Soilworker said:

Maybe it'll be fixed when they release the new fuel system they're working on. 

 

I doubt it. the fuel system is more about drop tanks and being able to switch between and select individual fuel cells.

9 hours ago, I./JG52_Woutwocampe said:

Looks more related to the engine damage model to me.

This.

9 hours ago, I./JG52_Woutwocampe said:

engine damage models could really use an improvement.

the overall all damage model of all planes should be more detailed and fleshed out. like this:

image.thumb.jpeg.9a531c9ffd8138fe68dafab7e83ebd7a.jpeg

 

and of course historically correct ammunition (not only AP and HE and tracers are artificially mixed in)

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I./JG52_Woutwocampe
Posted

@the_emperor

 

I agree that everything about damage models could be improved. But its a bit unrealistic to expect such a complete overhaul so if the devs need to concentrate on one particular aspect of it, I'd say go for the heart of the aircraft : the engine.

 

There are many possible outcomes to engine damage, not only 'no difference' or 'dead and on fire'. 

 

I really hope they decide to go for it.

 

 

  • Upvote 1
Posted (edited)
13 hours ago, I./JG52_Woutwocampe said:

I agree that everything about damage models could be improved. But its a bit unrealistic to expect such a complete overhaul so if the devs need to concentrate on one particular aspect of it, I'd say go for the heart of the aircraft : the engine.

 

There are many possible outcomes to engine damage, not only 'no difference' or 'dead and on fire'. 

 

I really hope they decide to go for it.

I am with you on that.

at least some more  details in the main compartments of the planes would be nice, at least all watercooled engines and their cooling systems should be  looked upon and should become more detailed. at the moment it feels very binary. I Damaged 0 no damage. same for the cooling systems. the water cooled engines seem to tough and are able to run far to long with damage to the radiator.

What they should improve in this regard (from my perspective):

1) Model all fuel/coolant/oil lines, and make them destroyable

2)Model all coolant tanks and make them damageable (a damaged coolant tank should set you on the clock until your run out of coolant. There should be a difference whether a .303 , .50 or 20mm pierces your tank and how many. that damage should also determine your remaining cooling capacity since it leads to a pressure drop in the system and therefore a deacrease in cooling perfomance

3) more detailed damage to the radiator/cooling systems, everything I said in 2) about the coolant tank should also apply for the radiator.

 

Planes running on  full power for a far to long time with damaged radiators are at least questionable and make rifle calibre rounds a bit obsolete (e.g. Hurricane).

It should not be an instant kill, but a damaged radiator should take you out of the fight and try to run for your own front line or looking for a nice place to ditch.

Edited by the_emperor
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I./JG52_Woutwocampe
Posted (edited)

@the_emperor

 

I completely agree about the nonsense of aircrafts pushing their engines to the limit while leaking coolant and oil. And still making it back home!

 

But yeah this has been repeated often in the complaints thread about leaks. No change though. 

 

The topic here was about the direct fuel injection damage and what people have observed when suffering that type of damage in game.

 

And the fact that no one actually has an answer about what it does in game speaks volume : it does nothing.

 

Mods : you can merge this thread with my engine damage thread in complaints as it obviously belongs there.

Edited by I./JG52_Woutwocampe
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