Backfire Effects from exhaust?

[WhiteSW20]

From the screenshot of the GTR concept PD seem to have implimented some nice back fire effects?

I hope we can some other pics to confirm that's real.

It's one of the main problems I've had with GT, they never really have any effects coming out of the car like exhaust smoke or backfire.

I'd be nice to have the occasional POP of fire spitting out of your fully modified car in GT4

 

[shopping_carts_]

theres been lots of speculation over it...do a search youll find what your looking for...i think everyones pretty sure its just been photoshopped in

welcome to gtp by the way

 

[Dorifto]

That's one of the things PD needs to improve for GT4. The little effects like that really make a game both fun and realistic.

 

[Eagle]

Your car shouldn't technically backfire if it's running perfectly should it?

 

[code_kev]

while this has been talked about 3 billion times, i think it's pathetic to miss this out. Even half life rally has em

 

[battle_stage]

Your car shouldn't technically backfire if it's running perfectly should it?

Cars don't always run perfectly under stress (ie racing) now do they?

 

[jr93alty]

for one, its not backfire...backfire is fuel exploding at the wrong time and going out the intake and is extremely dangerous. flames out of the exhaust (which is quite rare with a full length exhaust) is from letting off the gas at high rpms in a MT car and the timing gets retarded and extra unburned gas gets into the headers and burns as it goes thru the exhaust piping.

 

[rollazn]

https://www.gtplanet.net/forum/showthread.php?t=40983&highlight=Flames

Theres the link... read through it.


Backfire is flames going out of an exhaust. Because the ignition being delayed, the air/fuel mixture reaches the exhaust tubes mostly unburned. When the spark plug fires, the exhaust valve is starting to open due to the ignition delay mentioned above. Additionally, the exhaust temperature being extremely high, the unburned fuel explodes at the contact of the exhaust tubes. Making both flame and a poping noise.

 

[claf-43]

nothing like going to av8 supercar race in adelaide and listening to all the v8s pop around corners

 

[WhiteSW20]

sorry if I didn't post the terms incorrectly
but yes

I have a MR2 with N1 exhaust and aftermarket manifold
due to some of the miscaluclations after modification, the mixture is altered and unburn fuel is released into atmosphere via the tailpipe and its sudden contact with fresh air will make it burst into flame

If you watch most modified cars, not just race cars. they "misfire"

As for the WRC cars they have misfiring system, which I think GT needs to impliment... at least make the car make poping sounds as we shift down and let go of accelerator

 

[rollazn]

Rally cars have something called an Anti Lag System. It is an engine management technique that allows to minimize the turbo lag time.

"When the driver lifts his foot from the gas pedal the ignition timing is altered with sometimes 40° or more of delay (retard) and the intake air and fuel supply mixture is made richer. The inlet butterfly is kept slightly open or an air injector is used to maintain air supply to the engine. This results in air/fuel mixture that keeps getting in the combustion chambers when the driver no longer accelerates. The ignition being delayed, the air/fuel mixture reaches the exhaust tubes mostly unburned. When the spark plug fires, the exhaust valve is starting to open due to the ignition delay mentioned above. Additionally, the exhaust temperature being extremely high, the unburned fuel explodes at the contact of the exhaust tubes. Luckily the turbo sits right there and the explosion keeps it turning (otherwise it would slow down since its intake, the exhaust gases, is cut-off). The effect is vastly lower response times with some downsides."

Little infomation there for you guys...

Also we have all heard about the up and coming GT-R. Well most likely it will have some sort of Anti Lag System. Since there was pictures of an Anti Lag System in an interview with the president of Nissan. Im not sure how it will works.

I know for a fact that a misfiring system is illegal. Just think of it, and you'll have the reason. Its kinda like a flame thrower thingy...

 

[Boost Lee]

All it takes in the real world for your car to backfire is for your a/f mixture to be rich. If you own a turbo car with all the emissions equipment taken off and are running a somewhat 'safe' mixture you will at some time backfire.

 

[Eagle]

Thanks to everyone for clearing up the details there. Cool to hear how the anti lag system works in WRC cars, I'd wondered about that.

 

[JNasty4G63]

Hell, I can get flames almost 2 feet long out the back of my Talon. Doesn't mean the car is running bad, its just running rich, which is good and safe. A car running rich with a lack of catalytics will do that. I can do it almost at will once the exhaust is hot. I have an Apexi GT downpipe and GT exhaust. Those have no cats. And like was said earlier, most fast turbo cars tend to run more rich for safety. And when you let off the gas and 26psi worth of fuel sneaks out, it will shoot a flame. If I leave it in gear and coast out a bit, it will blow a flame out the back for a good 2-3 seconds. No pops, just unburned fuel thats not getting caught by a catalytic. It'll do it 5-6 times a lap when I auto-x sometimes. Fun times. 👍

Hilg

 

[edenoniphobic]

Exhaust-flames should be in too yes, but I do miss the sparks from the chassis that bumps a bit too hard on the racetrack-ground more than that in the movie's so far. It is in GT3, and should be in GT4 too, in an improved version preferably.

 

[Meatwad]

All it takes in the real world for your car to backfire is for your a/f mixture to be rich. If you own a turbo car with all the emissions equipment taken off and are running a somewhat 'safe' mixture you will at some time backfire.

Tell me about it....

 

[Mr P510]

I'll be nicely supprised if exhaust-flames are in GT4,espesially as PD would do it right but somehow i doubt it.

 

[toler]

Actually some race team inject fuel into the exhaust to get the backfire effect just for the looks -> 1. generation Audi R8, Foggy Petronas Superbike etc.

 

[T5-R]

Even with misfiring systems, why not have backfiring when a cars engine is damaged (presuming they implement car wear).

/Imagines driving around in a Fiat Panda backfiring & blue smoke coming out the back

 

[code_kev]

"Volvo, what other car can you overtake a Porsche with a Wardrobe in the back?"

an audi rs6?

 

[T5-R]

"Volvo, what other car can you overtake a Porsche with a Wardrobe in the back?"

an audi rs6?

It is a joke.

Also been discussed before.

 

[code_kev]

i know it is! im just being silly

 

[T5-R]

i know it is! im just being silly

Besides a Volvo can carry a wardrobe & a couple of choir kids

 

[Sven]

Yeah, I was watching LeMans, and just thinking how much GT4 could use backfiring.

And man, that exhaust system you have on your Talon can't be legal...

 

[WhiteSW20]

haha ... I don't think his talon was meant for the streeet...

you can always slap ur stock system back on for inspection so who cares haha

the MR2 apexi and almost all MR2 exhaust "kills" one cat ...and that rules it illegal too.
but like I said no one cares, and up here in canada, it still passes air care inspection

Artz

 

[phantasm]

i don't get the obsession with "fire out of the tailpipes"... does it really matter? Yes it would be an improvement if they captured more of the true engine sounds (such as the 'popping' of rally cars) but i couldn't really care if there's flames or not out of the pipes... i think there's far more details worth investigating for GT4... maybe come GT7 we'll have all these minute details.

 

[rollazn]

In TXR3 it was very fun to punch the accelerator and then let go hearing the loud trubo whine (BOV) and a pop with fire going out of the exhaust. I think it would be a good improvement and I think it should be in GT4. I know I would enjoy it more.

GT7?? Thats a long way to go... I think if it wont have it for GT4, then GT5 on PS3 should. I dont think we have to wait till GT7.

 

[code_kev]

it's not a minute detail yet. Im flabbergasted that we are on gt4 and STILL no reverse lights, no damage, no interiors, no exhaust pops, no skid marks. It's comedy, even MSR on the dc had reverse lights and skid marks.

 

[rollazn]

I quite agree with Code_kev... there should be all those things he just listed.

 

[donbenni]

What do mean no interiors? Have you not play GT4 Pro?