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Discussion Starter · #1 · (Edited)
Hey guys,

It's been a while since I've been on the forum, back then I had an R/T Classic but I got into a Scatpack A8 with 38K miles on it (been loving the hell out of this thing).

So the other day I decided to really give the auto-stick a try while in sport mode, I somehow forgot that to shift UP gears you have to pull the shifter BACK so as I was pulling through the gear I pushed up and wondered why it would not shift or if I didn't push it all the way, about a half-second later I remembered I was supposed to pull the stick back, which made me feel like an absolute moron 馃槖. Whilst this happened the RPM's tapped into redline territory, roughly 6.2K.but I let off quickly and did not hold it there as I corrected myself.

Since that short-incident I feel like the car has lost a little bit of it's touchiness in throttle-response and like it feels a little less crazy at WOT. Is it possible something could've been damaged in that incident or is my mind playing tricks on me worrying and over-analyzing how the car feels now compared to before? I feel as if the engine might be a little more noisy now compared to before but I wasn't paying close attention to it before. The only thing is throttle-reponse feels a little sluggish compared to before, not by a lot but I no longer get that "holy sh**" feeling while stomping on it.

Anyone been through this or could chime in? I will most likely be taking the car in to diagnose either this weekend or next week just to be sure.

I should also mention, I have done a 29 & 31 fuse pull to see if that would help and I feel that it did help a bit but it still doesn't feel quite 100%. Like if I could put a number on it, it feels like the car runs at ~85-90% of what it did before the incident.
 

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I should also mention, I have done a 29 & 31 fuse pull to see if that would help and I feel that it did help a bit but it still doesn't feel quite 100%. Like if I could put a number on it, it feels like the car runs at ~85-90% of what it did before the incident.
Without any other symptoms I think it may be in your head.
I did the same thing the first time I floored it from a dead stop in my Scat. It's the manual and I was not prepared for how fast the RPM's climbed and bumped the rev limiter at 6.5K. I posted about it here and got reassurance from allot of members that it would be fine. Some people use the rev limiter as a shift indicator. :oops:
If there is no noises, smoke or liquids. I think it will be fine.
If it still worries you, the diagnostic is a good way to put your mind at ease. Good luck!
 

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Discussion Starter · #3 ·
It's very possible that you are right, everything seems fine except for the throttle-response not "feeling" quite as touchy as it did prior. I can't tell if the engine got noisier than before, i'm definitely over-analyzing in that department but I'll take it in just to be 100% sure. I did have a lifter fail on my old R/T classic and when it did it got a LOUD obvious tick, but I've seen some videos where a very subtle almost unnoticeable tick is present and they end up finding out both the cam and lifters failed, so we'll see, fingers crossed etc.

But yeah, the RPM's build up fast in these 392's. I can't imagine using the rev limiter as a shift indicator, now THAT is wild hahaha, I guess it's like that saying "I paid for the FULL speedometer, I'm going to use all of it!"
 

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Hey guys,

It's been a while since I've been on the forum, back then I had an R/T Classic but I got into a Scatpack A8 with 38K miles on it (been loving the hell out of this thing).

So the other day I decided to really give the auto-stick a try while in sport mode, I somehow forgot that to shift UP gears you have to pull the shifter BACK so as I was pulling through the gear I pushed up and wondered why it would not shift or if I didn't push it all the way, about a half-second later I remembered I was supposed to pull the stick back, which made me feel like an absolute moron 馃槖. Whilst this happened the RPM's tapped into redline territory, roughly 6.2K.but I let off quickly and did not hold it there as I corrected myself.

Since that short-incident I feel like the car has lost a little bit of it's touchiness in throttle-response and like it feels a little less crazy at WOT. Is it possible something could've been damaged in that incident or is my mind playing tricks on me worrying and over-analyzing how the car feels now compared to before? I feel as if the engine might be a little more noisy now compared to before but I wasn't paying close attention to it before. The only thing is throttle-reponse feels a little sluggish compared to before, not by a lot but I no longer get that "holy sh**" feeling while stomping on it.

Anyone been through this or could chime in? I will most likely be taking the car in to diagnose either this weekend or next week just to be sure.
I've driven my Charger SP in Auto Stick with Sport Mode alot over the last 4 years.....and the accidental shift happens to the best of us. I've done it a few times and didn't notice anything wrong afterwards. I would say that you are just a little paranoid and it's likely in your head.
 

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The rev limiter protects your engine by stopping the engine speed from extending beyond what other parts in the engine are physically capable of withstanding.

If you didn't have this, over-revving could make the valve springs go beyond their limits and fail to bounce the valves back quickly enough. They effectively would get held open and cause valve float. It can cause a loss of compression, misfires, or it could even cause the valves to spring so far back that one hits a piston. Expect to be ordering fresh engine parts very shortly afterwards. Another possibility is that a connecting rod will snap or shatter. If that happens, you鈥檙e looking at a very big bill and potentially even a new engine.

This article explains how rev limiters work:

(675) How Rev Limiters Work | Dodge Challenger Forum (challengertalk.com)
 

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Discussion Starter · #6 ·
The rev limiter protects your engine by stopping the engine speed from extending beyond what other parts in the engine are physically capable of withstanding.

If you didn't have this, over-revving could make the valve springs go beyond their limits and fail to bounce the valves back quickly enough. They effectively would get held open and cause valve float. It can cause a loss of compression, misfires, or it could even cause the valves to spring so far back that one hits a piston. Expect to be ordering fresh engine parts very shortly afterwards. Another possibility is that a connecting rod will snap or shatter. If that happens, you鈥檙e looking at a very big bill and potentially even a new engine.

So just to be sure, the rev limiter still comes into play in auto-stick sport-mode correct? That's some scary stuff to definitely want to avoid.

I greatly appreciate all your inputs and information!
 

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So just to be sure, the rev limiter still comes into play in auto-stick sport-mode correct? That's some scary stuff to definitely want to avoid.

I greatly appreciate all your inputs and information!
My understanding is that the rev limiter is omnipresent.
 

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2020 HellRaisin 1320
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I wouldn't worry too much. I drive mine in manual mode 100% of the time I'm not in Drag mode and I've had that happen a bunch. Mostly early on when I was getting used to how fast it revs up, and other times when I throw it in Drag mode really quick on the street and forget to take it out of manual mode at the same time.

Car has done it itself too though. I had a pass down the quarter mile where it shifted a touch too late and hit the rev limiter at the same time. That was in full auto drag mode. I guess the programmed shift points in 'Drag' are really close to that limiter.
 

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I wouldn't worry too much. I drive mine in manual mode 100% of the time I'm not in Drag mode and I've had that happen a bunch. Mostly early on when I was getting used to how fast it revs up, and other times when I throw it in Drag mode really quick on the street and forget to take it out of manual mode at the same time.

Car has done it itself too though. I had a pass down the quarter mile where it shifted a touch too late and hit the rev limiter at the same time. That was in full auto drag mode. I guess the programmed shift points in 'Drag' are really close to that limiter.
Yes, the factory settings for the shift light are 6250 RPM (M6). That's 250 RPM past redline and 250 RPM short of the rev limiter.
 

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Yes automatics are protected by rev limiter and the computer. Manuals are protected by the limiter under acceleration.
But if you are in your manual and you shift wide open throttle from 3rd to second at speed even the rev limiter cannot save you.
 

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The Autostick is designed to where if you over rev it will then automatically shift from the PCM Safety Built in the Car to keep from destroying things. So after so many RPM's it will still Auto Shift regardless what it shows on the Gear your in. With the later 8 Speeds they are even better for that then 5 speed one is like I have. Also a Rev Limiter will kick in as well ....
 

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Discussion Starter · #12 ·
Thanks gents, so far it seems like everything is good. The reassurance and info has brought me valuable peace of mind. If anything bad pops up I'll update this thread, otherwise I wish you all a great weekend! 馃嵒
 

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Hey guys,

It's been a while since I've been on the forum, back then I had an R/T Classic but I got into a Scatpack A8 with 38K miles on it (been loving the hell out of this thing).

So the other day I decided to really give the auto-stick a try while in sport mode, I somehow forgot that to shift UP gears you have to pull the shifter BACK so as I was pulling through the gear I pushed up and wondered why it would not shift or if I didn't push it all the way, about a half-second later I remembered I was supposed to pull the stick back, which made me feel like an absolute moron 馃槖. Whilst this happened the RPM's tapped into redline territory, roughly 6.2K.but I let off quickly and did not hold it there as I corrected myself.

Since that short-incident I feel like the car has lost a little bit of it's touchiness in throttle-response and like it feels a little less crazy at WOT. Is it possible something could've been damaged in that incident or is my mind playing tricks on me worrying and over-analyzing how the car feels now compared to before? I feel as if the engine might be a little more noisy now compared to before but I wasn't paying close attention to it before. The only thing is throttle-reponse feels a little sluggish compared to before, not by a lot but I no longer get that "holy sh**" feeling while stomping on it.

Anyone been through this or could chime in? I will most likely be taking the car in to diagnose either this weekend or next week just to be sure.

I should also mention, I have done a 29 & 31 fuse pull to see if that would help and I feel that it did help a bit but it still doesn't feel quite 100%. Like if I could put a number on it, it feels like the car runs at ~85-90% of what it did before the incident.
Hi Antagonist R/T,
Please be sure to keep us posted as you continue to monitor this. If you find yourself having to work with your dealer, we're more than happy to get you connected with case specialists who can work alongside your dealers to explore all potential solutions.

Rob
Dodge Cares
 

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The Autostick is designed to where if you over rev it will then automatically shift from the PCM Safety Built in the Car to keep from destroying things. So after so many RPM's it will still Auto Shift regardless what it shows on the Gear your in. With the later 8 Speeds they are even better for that then 5 speed one is like I have. Also a Rev Limiter will kick in as well ....
I don't know about the older 5 speeds, but in my 2020 it doesn't auto shift, it'll just keep bouncing off the rev limiter until I let off or shift myself. It does however auto down shift when the rpms get too low. Now my old 2012 Avenger would auto shift if the rpms got too high. I actually drag raced in manual mode but didn't do any shifting because the car would shift on its own but at a higher rpm than if I left it in auto.
 

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2018 Scat Pack SHAKER in Plum Crazy- GONE :-(
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On (my 2018 paddle equipped) A8, when shifter is in "D" and using the paddles to up/down shift, it will still automatically upshift at redline. With shifter to the left in "M" mode, it will not upshift unless you tell it to, and the rev limiter will kick in. It will still down shift as you come to a stop, but will stay in whatever gear it drops to as you slow down. Also it will stay in M mode forever until you move the shifter back to the right.
When I "D" mode (autostick via paddles only) when shifting with the paddles, it will hold that gear while accel.decel in that gear, but if you cuise along or come to a stop, it will automatically revert to "D" mode again,and shift on its own.
 
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