RedBull Junior

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ITCC_Andrew
Flat 4s will always sound deep and throaty, mainly.






Proof. I was there, the car sounds even more aggressive - like a small V8 - in real life.
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That's not necessarily true (I know, you said "always ... mainly", but still), it depends on how you do the plumbing. The "scooby sound" is due to a particular way of handling the exhaust plumbing, making one branch longer than the other (handy for turbo placement), interacting with the firing order (sequential in each bank), but it doesn't have to be that way.

See this:



And compare with this:



It's more usual to find that even approach on a boxer four these days, rather than the more iconic throb.

What's important is the combination of the engine configuration and the intake and exhaust configuration, not just the engine configuration alone. :)
 
Griffith500
What's important is the combination of the engine configuration and the intake and exhaust configuration, not just the engine configuration alone. :)
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While that's true, they still sound like V8s to me. It may be just an opinion, but I've always thought that F4s sound like V8s of one sort or another. Subarus with UELs (uneven length headers) sound more like a Mopar V8, while the Ford you posted sounds more like a high-reving... Ford. :lol:
 
ITCC_Andrew
While that's true, they still sound like V8s to me. It may be just an opinion, but I've always thought that F4s sound like V8s of one sort or another. Subarus with UELs (uneven length headers) sound more like a Mopar V8, while the Ford you posted sounds more like a high-reving... Ford. :lol:
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The Escort was an inline 4, the Alfa a boxer, in case that wasn't clear. It was meant to show that you can mix and match the firing intervals for any engine of the same cylinder count and thermodynamic cycle (i.e. four stroke) by careful design of the plumbing to get them to sound as similar or dissimilar as you want.

It just so happens that the quest for "performance" tends to converge on certain pulse spacings (i.e. evenly spaced on the exhaust). The intakes sound similar possibly through fate, but the Subaru engines have a much more even sound to their intakes now, possibly due to a narrower plenum and more focus on extracting peak power on that side of the engine (exhausts are overly restricted on road cars):



The same applies to any six cylinder (etc.), although the exhaust arrangement for a straight six required to get the V6 sound a 370Z or GTR has is a bit unweildly in terms of packaging - the same is true of trying to get the inline 6 growl on the intake of a V6 (which is usually softer and more fluffy).

The V8 sound "impression" possible with any 4 cylinder comes from the 180° firing interval (4[strokes]*180[degrees] / 4[cylinders]), which is actually only the second most prominent in a cross-plane 4 / V8 - the first being the 270° interval, i.e. V-Twin.

But it's really the mixture of those intervals that causes the characteristic sound, and the UEL exhaust on the Boxers effectively broadens one set of intervals towards 270° and narrows another towards 90° (the third most prominent in a V8), depending on the engine speed and actual length difference in the exhaust, leaving the other two at 180° (also, fortuitously, in the right order, otherwise it'd sound different!). :D
It's possible to do the same with an inline 4, e.g. this and this.
 
This is going definitely way beyond what I've covered so far in Subaru school (not going to be specific about where, but it's a Subaru-specific motorsports shop that I spend a lot of time at) and college, but I think I understand it.



Thanks for explaining.



However, you mean to tell me that it could be any configuration in the X2014? And that PD have been cheeky and decided to change it? :confused:
 
ITCC_Andrew
This is going definitely way beyond what I've covered so far in Subaru school (not going to be specific about where, but it's a Subaru-specific motorsports shop that I spend a lot of time at) and college, but I think I understand it.



Thanks for explaining.



However, you mean to tell me that it could be any configuration in the X2014? And that PD have been cheeky and decided to change it? :confused:
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Maybe, unless I'm going mad. I'm certain it said boxer at first, though!

And no problem, I do get carried away sometimes though...
 
Griffith500
Maybe, unless I'm going mad. I'm certain it said boxer at first, though!

And no problem, I do get carried away sometimes though...
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I enjoyed that, but PD probably changed over all of the info for it, making it impossible to check. Otherwise, I guess I now know why the UELs sound so good, at least. :)

chzsln485
When you first unlock the junior events, doesn't Vettel pop up from the bottom of the screen and tell you it has a flat-four?
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That is how I recall... But I'm not the hacker type or anything, so I'm not checking that.
 
Grayfox
Just saying what I think it sounds like.

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I was thinking the exact same thing. The sound of the Junior took me back to the first time I heard the racket in this video:

K20 series is the ultimate or penultimate N/A 4 banger.

 
FFFanatic
I was thinking the exact same thing. The sound of the Junior took me back to the first time I heard the racket in this video:

K20 series is the ultimate or penultimate N/A 4 banger.

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Best 4 cylinder is the B16B.

170hp from a 1.6
highest HP/liter N/A 4 cylinder engine for a while
 
LMSCorvetteGT2
Why not the K20, I'm not a honda fan but I can't deny how good that engine series is.
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Oh I won't either, but I'm a Nissan guy so take it how you will. :lol:

My dream setup is a bored/stroked SR20VE 20V out to 2.4 liters and everything else you can throw at it. 👍
 
R1600Turbo
Oh I won't either, but I'm a Nissan guy so take it how you will. :lol:

My dream setup is a bored/stroked SR20VE 20V out to 2.4 liters and everything else you can throw at it. 👍
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I'm a Nissan guy too, I even drive one but usually the 2.0 I got to when I boast is the K20 or the Ecotec, SR20 is brilliant too though. And your dream sounds pretty cool.
 
Srt4 2.4t.

This rbxj could be a turd at anything and I would still love it just for the sound of that resonating exhaust and downshifts. I didn't even bother trying to win the challenge because I was enjoying the sound so much. I was thinking an I still playing gt? Lol. The sounds of engines and loud exhaust is what got me into cars/trucks to begin with and there's more immersion for me from the sounds.
 
I loveit, especially online, its so evenly matched :)

Best X1, and why? Because its actually realistic.
 
I've noticed that the rbxj is about a foot wider than it appears. I hit another car and in replay we weren't even touching. Anyone else notice this?
 
All of those are some amazing engines :cheers:


I'm thankful that PD gave us this new toy because it's already made me a better virtual driver. It's at the right level of everything "racecar" just to get you transitioned over to driving with aerodynamic grip. Bravo, PD! Giving us the Redbull X 20XX was pointless for me without walking me through the process like they are doing here.

I'm new around here, so I can't wait for the first racing series with these things.
 
baja_j
I've noticed that the rbxj is about a foot wider than it appears. I hit another car and in replay we weren't even touching. Anyone else notice this?
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I was in an RBX J room and the other players mentioned that. I have not experienced it myself though.
 
Sum1s2pid
Then I must be going mad, too. I'm reading the car info, and it says says 2.0L I-4... but I could've sworn it was a flat-four. Ah well, no matter -- still a fun little car.
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If I remember correctly, when Sebastian Vettel was taking about the X2014 JR before the X Challenge event, he described the engine layout as a flat-four. Maybe that's where the confusion is coming from.
 
ADTR
The downside for me, the force feedback on my wheel is at 8, and it felt like it was at 4.

But yeah, I enjoyed racing it and great sound too.
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Awesome event, but I totally agree on the wheel. It also felt like there was a bit of a deadzone.
 
The best 4 cylinder is the EJ203/5/7. Anyone who doesn't agree has forgotten about their center of gravity. All of the engines above are good for power, but some are better than others for weight distribution without considering power.


On-topic, who thinks they're going to use the RBJ in open lobbies?
 
As it relates to the sound of the junior, I managed to get my Sony Pulse Elite's working and let me tell you. I thought it was good with my regular 6.1 surround but crank up the Elites to 11 and it's fecking brulliant.
 
The theory we had with a friend of mine is that since Red Bull gets their engines from Renault, the engine in X2014J could be the same engine as the Megane II RS, it has an I-4 2.0l engine that packs around 230hp.(X2014J has 240-ish) X2014J sounds louder and a little bit different but that could be the engine being race-modded(exhaust etc.)
 
redragon95tr
The theory we had with a friend of mine is that since Red Bull gets their engines from Renault, the engine in X2014J could be the same engine as the Megane II RS, it has an I-4 2.0l engine that packs around 230hp.(X2014J has 240-ish) X2014J sounds louder and a little bit different but that could be the engine being race-modded(exhaust etc.)
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The Mégane is turbo charged, the X2014J is NA, for another difference.

It could be any engine, including one of the many Renault "F4" units (e.g. those NA beasts that have been in the hot Clios until recently), just massaged to produce more top end power and much less torque in the lower rpm region, looking at the graphs in game.

I don't think the specific output involved necessitates new rockers and "VTEC killer" cams, either, although the extra response, rigidity and oil pressure stabilisation might be more beneficial than retaining low-end torque in a race engine, who knows.
 

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