BUG Dodge Charger SRT Hellcat '15 and possibly others

[CJ1045]

Just won the Dodge Charger SRT Hellcat '15 in the daily and decided to take it out for a spin. Time Trial on Dragon, Auto box but with Racing Super Soft as that is what I use to compare lap times. Well the track came up in the background and there was an odd engine noise sound from the car lapping in the background. Did not think too much of it and selected start. That is when it all went a little strange. The Hellcat was revving its engine up and down about 500 rpm as I accelerated. As I got onto the straight in 4th gear I kept the accelerator steady about mid position and the engine continued to rev up and down about 500 rpm. It was very, very odd. I thought that maybe it was to do with traction control but I exited, turned it off completely and restarted. Same issue. It was so obvious that I wondered why others had not noted it (as least could not find mention here). So I tried some road tires and the effect was much less obvious. It was still there but not so strong. You might not notice it now unless you were looking for it. Back to Race Super Soft and full on revving issue. Tried manual rather than auto as thought that might be an issue too but no difference still revving.

Now I have not noticed this issue on other cars but do wonder if there is a more general bug in the physics not limited to the Hellcat that other cars will also have but be less obvious and it is only the Hellcat's engine characteristics that make it standout.

Please do try this out for yourself if you have the Hellcat. Key seems to be putting Racing Super Soft on it to get the effect as noticeable as possible.

CJ

 

[xBSxChadSpeed]

I've had no issues with my hellcat, could be just a general glitch resolved by quitting the game and powering down the PS4 and restarting...

 

[Emerald1968]

I have also experienced this rev bounce on the Hellcat, I initially thought it was down to the TCS coming into play but I am not sure.

 

[dr_slump]

Low final gear

 

[unit-one]

Just tried it, it bounces ))
(completely stock)

 

[CJ1045]

Yep, that is what I get but even worse when using racing soft tyres.

 

[xBSxChadSpeed]

Yep, that is what I get but even worse when using racing soft tyres.

I see now, mine may do that as well and I haven't noticed. Maybe something to do with traction or tires since it changes with different tires!

 

[Sander 001]

Don’t know about the sound but I’ve definitely seen the rev bounce thing before on other cars. Can’t remember which though.

 

[Sharpie]

Also not just hellcat but some race cars do rev bounce it needs fixing.

 

[SleezyBigSlim]

I tuned mine for drag racing, fitted with racing hards.

 

[Solstice93]

The Gr.4 veyron has this annoying bouncing behaviour too, it's just not as severe.

 

[JayRS200]

I've also had this on a car or 2.

 

[outofspace]

Have you flipped the transmission?

 

[CJ1045]

Tried both manual and auto. No difference.

 

[REGMAINE]

I tuned mine for drag racing, fitted with racing hards.

How quick is your 1/4 mile in it?

 

[Sector King]

Just tried it, it bounces ))
(completely stock)

This used to happen to the GT500 R34s in Gran Turismo 2.

 

[Renrag39]

Always seems to happen on cars with very low final gearing. The very bottom adjustment on custom gearbox.
Note your autoset top speed and adjust final. Then reset autoset to desired top speed. Bounce goes away.

Might be the other way round though. I'm hard of braining atm!

 

[CJ1045]

Happens in all gears

 

[Renrag39]

I know, it's inherent to the gearing. Adjust final gear ratio, the adjustment right at the bottom. Not the top gear but the final drive ratio. Has a large range, often around 2.000-5.000. Move it one way or the other from either extreme.
@CJ1045

 

[Emerald1968]

I think the update may have resolved this issue as I took the hellcat around Tokyo and besides the transmission wobble whilst shifting up I did not notice any excessive rev bounce.

 

[CJ1045]

Nope, on Racing Super Softs the problem is still the same. As Renrag39 posted, though, changing the final drive ration pretty much cures the issues (or, at least, provides a workaround). The default ratio is 2.62 and changing this higher to, say, 3.2 almost clears the bouncing apart from when you just change gear, the rest of the rev range is fine. Still looks to be something that PD need to fix.

CJ

 

[SleezyBigSlim]

How quick is your 1/4 mile in it?

Need test to find out. I hope they being back the Vegas drag strip track from GT4 or the long oval with 1/4 mile measurements etc.

 

[phil_75]

Just tried it, it bounces ))
(completely stock)

This happened to me but even worse on the Merc AMG GT3 car when i tried flipping the transmission.
Funny thing is it was pulling away from my ghost which was stock.

 

[Emerald1968]

I have changed from racing soft to sports soft and besides the wobble during shifting the excessive bounce is no longer there, i have not tried custom transmission yet.

 

[Dan Vincent]

Take it in to the dealer. Still under warranty