WAG is the tires are breaking loose. Even with a my Hellcat a shift from 1 to 2 at WOT would have the rear tires spinning like crazy.

Never tried this but the "word" was for a better launch from a stop to put the transmission in manual mode with the transmission in 2nd gear. Take off. ASAP move the lever to D mode and then let the transmission/engine controller upshift. With the manual shift mode I believe you will find it very hard to time the shifts just right.

Wanted to add be sure the fuel level in the gas tank is good. My experience with my Hellcat is the fuel level was considerably less than indicated when the tank level read 1/4 tank. Under hard acceleration with a too low a level of gasoline the fuel pump may be sucking air.

Also, be sure the oil is fresh and the level is good. There have been cases -- most often spotted on the dyno -- of an engine being run up to red line suffering from an unexpected/inexplicable loss of power.

The problem was traced to aerated oil at high RPMs. The air in the oil causes the zero lash valve adjusters to partially collapse which causes the valve lift and timing to deviate from what they should be with the engine just running out of steam.

 

The tank was right on half so I really don't think it was fuel. The oil was right at the level hot. It definitely felt like trans hesitation..

 

My RedEye had this same problem. I went pretty high up on the chain with SRT customer service including several dealer visits and a confirming dealer opinion etc and even hitting up my insider connection within FCA. Bottom line they said it was operating as designed. They WANT it to hiccup. I sold mine after all that.

 

I had Dodge do a stage 1 on my 2023 charger hellcat and it’s also running poorly on the shifts. They also told me that this is normal. I’ve told them that “this is normal is a bullshit answer for a 100k race car”. Supposed to take it back in to have it flashed for a 3rd time. So dumb.

 

That makes Absolutely No Sense... Some people don't have the issue and some do... Amazing..

 

I have the same car and at first it bugged me to death! What happens is that it hits the rev limiter due to the rpm’s rising so quickly, it can’t shift before it bumps the limiter. Drag radials are your answer man. And I have learned to not go full throttle until going into 3rd gear. Also when in dedicated manual mode, it will always hit the limiter and die out almost quicker than you can shift it when WOT. Takes getting used to, but drag radials are the biggest assistant on these cars.

 

Car has Drag Radials and they hook up really well. Absolutely no wheel spin. According to the data it dosen't come close to the rev-limiter. It definitely has something to do with either the TCM or some learning issue...
I would think by now Dodge would have

I had this exact same issue with my narrow body Redeye. I took it in and they said nothing was wrong. They did not want to flash the TCM, but I nagged them to do so. They finally acquiesced- and low and behold, it largely addressed the issue. Then I bought Nitto-555R for front and back and it really abated the problem. These cars get strange sometimes but are worth it in the end IMO. I was still fed up with the wheel spin though, so I got the Super Stock and the meatier, stouter tires really bite when warmed up.

Thank you !

 

I had this exact same issue with my narrow body Redeye. I took it in and they said nothing was wrong. They did not want to flash the TCM, but I nagged them to do so. They finally acquiesced- and low and behold, it largely addressed the issue. Then I bought Nitto-555R for front and back and it really abated the problem. These cars get strange sometimes but are worth it in the end IMO. I was still fed up with the wheel spin though, so I got the Super Stock and the meatier, stouter tires really bite when warmed up.

 

They rise fast!...if manually paddling one will have to do the math on the fly or take the dive

 

I've not tried to do it manually. This happens in Auto mode.

 

It’s not the rev limiter. It’s in the software. Designed to do it and I hate it. Plenty of info on this in other threads.

 

My Frostbite Car the hiccup was massive and I had perfect hook on a prepped drag strip with 315 ET Sreet R drag radials. In my case I was absolutely hitting the rev limiter. Data Logs shows 6600-6700 RPM at the peak. So there are 2 aspects. RPM and the Shift duration (I think). I was told the hiccup in my Super Stock was not RPM related. So apparently the shifts are not completing on time or something similar. Raising the Transmission pressure fixed that.

 

Maybe a trans tune would fix the issue??

 

That's what I'm thinking...

 

It should be fairly inexpensive to tune the trans if you already have a tuned car. If not you'll need to purchase the stuff and pay for the tune. Most people use either HP tune or Diablo. It comes down to personal choice really.

 

Transmission pressure?

 

Maybe... I'll have to look into that.. Thx,

 

Line pressure

 

Could be... Haven't checked yet..

 

My Widebody Scat Pack did exactly the same thing on the 2-3 shift. Took it to the dealership and they were instructed to do an update on the trans and it did nothing. It was fine on easy driving but as soon as I did anything over a 30 percent throttle it sounded like it was backfiring out of the exhaust when it shifted and you felt the car lurch forward before shifting and they all looked at me like I was nuts
I gave up even trying and ended up trading it in for a truck for my brother and I bought his Redeye

 

My Widebody Scat Pack did exactly the same thing on the 2-3 shift. Took it to the dealership and they were instructed to do an update on the trans and it did nothing. It was fine on easy driving but as soon as I did anything over a 30 percent throttle it sounded like it was backfiring out of the exhaust when it shifted and you felt the car lurch forward before shifting and they all looked at me like I was nuts
I gave up even trying and ended up trading it in for a truck for my brother and I bought his Redeye

Cool. Does your Redeye do it ??

 

Ever figure it out?

 

Yep. Going to trade it on a minivan and keep my z06 and zl1 for the track.

 

Fuel quality is everything…2 cents

 

100% but that’s not the issue with everyone having the same issue. One off, maybe, but not consistently.