J2M in IL-2 1946

I-25 · 07-14-09, 02:00 AM

well i look in other fourms and could not find anything...

when i fly the J2M weather it be the 3 or the 5 when i get to a high altitude the engine starts to bleach two streams of gray smoke and loose a lot o' power. i messed with the super charger settings to no result.

any tips?

Raptor1 · 07-14-09, 02:02 AM

Reduce your fuel mixture

I-25 · 07-14-09, 02:11 AM

tnks! i just read something about that over at the combatsim forums...

Schroeder · 07-14-09, 05:25 AM

If it has a switchable supercharger you should switch it to the next higher position too.

Raptor1 · 07-14-09, 05:26 AM

Quote:

Originally Posted by Schroeder

If it has a switchable supercharger you should switch it to the next higher position too.

Yeah, but that's just to increase performance, it doesn't fix the fuel mixture problems

Schroeder · 07-14-09, 06:37 AM

It does, try it.

The problem with the mixture not burning properly is the lack of oxygen at higher altitudes. The higher blower setting will blow more air/oxygen into the burning chamber and solve the smoke problem for some altitude (at least it did in an earlier version of Il2 IIRC). If I recall the instruction movies of the P47 and F4U correctly then mixture and blower were switched together.

Raptor1 · 07-14-09, 06:42 AM

Just tried, and you might be right, but the effect is very little (Only changes the altitude it starts at between 6,000-6,500m, over that you have to reduce the fuel mixture)

07-14-09, 02:00 AM	#1
I-25 Commodore Join Date: Aug 2003 Location: Baden-Würtemberg, Germany Posts: 628 Downloads: 24 Uploads: 0	J2M in IL-2 1946 well i look in other fourms and could not find anything... when i fly the J2M weather it be the 3 or the 5 when i get to a high altitude the engine starts to bleach two streams of gray smoke and loose a lot o' power. i messed with the super charger settings to no result. any tips?

07-14-09, 02:02 AM	#2
Raptor1 Navy Seal Join Date: Jul 2007 Location: Stavka Posts: 8,211 Downloads: 13 Uploads: 0	Reduce your fuel mixture __________________ Current Eastern Front status: Probable Victory

07-14-09, 05:25 AM	#4
Schroeder Navy Seal Join Date: Apr 2008 Location: Banana Republic of Germany Posts: 6,170 Downloads: 62 Uploads: 0	If it has a switchable supercharger you should switch it to the next higher position too. __________________ Putting Germ back into Germany.

07-14-09, 06:37 AM	#6
Schroeder Navy Seal Join Date: Apr 2008 Location: Banana Republic of Germany Posts: 6,170 Downloads: 62 Uploads: 0	It does, try it. The problem with the mixture not burning properly is the lack of oxygen at higher altitudes. The higher blower setting will blow more air/oxygen into the burning chamber and solve the smoke problem for some altitude (at least it did in an earlier version of Il2 IIRC). If I recall the instruction movies of the P47 and F4U correctly then mixture and blower were switched together. __________________ Putting Germ back into Germany.

07-14-09, 06:42 AM	#7
Raptor1 Navy Seal Join Date: Jul 2007 Location: Stavka Posts: 8,211 Downloads: 13 Uploads: 0	Just tried, and you might be right, but the effect is very little (Only changes the altitude it starts at between 6,000-6,500m, over that you have to reduce the fuel mixture) __________________ Current Eastern Front status: Probable Victory

07-14-09, 02:11 AM	#3
I-25 Commodore Join Date: Aug 2003 Location: Baden-Würtemberg, Germany Posts: 628 Downloads: 24 Uploads: 0	tnks! i just read something about that over at the combatsim forums...