Popping flames

[Flogzya]

Does a car with a higher Rpm usually pop a larger flame? If so what car pops the largest flame?

 

[Eks]

I always thought the '60s and '70s cars had bigger back fire. (Especially American cars)

 

[ViscousTraction]

It doesn't have to be at a high RPM to produce backfire.
The HPA Stage II Golf backfires with little revving. I haven't payed attention to backfire recently, but I would guess that The BMW M5, Mercedes C63 AMG, and the Nissan GT-R with racing exhaust would give some big backfire.

 

[Spirithockey61]

I would guess the rpm has something to do with it. If you have used hybrids, i'm sure you have notice the backfire is a lot bigger than non-hybrids. Seeing as hybrids have a higher RPM than non-hybrids, i would guess that is the difference maker.

 

[KiroKai]

From my own experience with hybrids I believe that the power determines a kind of 'start amount' of backfire and the RPM is used as a multiplicator of this. Than there's also a randomizer that makes sure 2 backfires under same conditions aren't going to be the same.

Just my assumptions based on experiences. For example, my Nissan GT-R with everything stock apart from insanely multiplicated power (engine rev limiter at 7000RPM) does very huge backfires, about the same scale and frequency as the X1 produces them.

Apart from the three mentioned cars, C63/M5/GT-R, I'd also recommend the Zonda R, and if you don't mind to use them the X1 models. If you want streetcars, I recommend to look for anything that has decent power to beging with and has big power increase possibilities through tuning (such as the C63).

 

[Felix]

The overrun (lifting off the accelerator and letting the engine rev down freely) tends to produce flames from the exhaust in real life. You find cars with straight through systems that allow a good flow of gas to be more likely to flame.

Turbo cars have always been good at this due to the nature of how a turbo engine works. I would guess in game things like turbo'd RX-7's should give good results with a racing exhaust installed.

My real life Impreza runs a pretty big bore exhaust and has heavily modified engine parts plus a bespoke engine map, and it was no until I wrapped the front of my exhaust system to allow it to be hotter, it was no able to ignite spent fuel well enough to make flames out the back. Previously it would bang and pop from the spent fuel half igniting along the system. Higher performance engines will be more likely to do this as they will happily dump unburnt fuel in the system so to give a better response and performance. It's not a very green or economical method of dealing with thing and this is why normal run of the mill cars don't do it.