Took my 1320 to track for first time. Car runs great, hooks great. Transmission shifts were awful. I am sick to have to take back to dealer, which is an hour away. Raced another 1320. Beat him off the line,every time it shifted I lost time. He passed me at 330 and let off(sandbagging) Is there any chance unhooking battery could fix this? My first automatic Scat or Hellcat,and I am bummed.
You left first and have a better 60 ft time and at 330 ft. he caught you. You have 9 more mph on the big end and yet he beat you. HHmmmmmm. You are making power big time.
Did u notice what RPM it's shifting at? Mine is set at 6250. I turned it down from 6400 as it stays in the power curve better. Tires need to be 18-25 psi. How much fuel did you have in tank? You need 1/2 tank or less. Do you have a backseat? Mine is deleted.
Is the car broken in? It takes around 5k to start to loosen up. Is the other 1320 stock?? With 102 trap speed he must be letting off considering his 1/8th mile performance. I'm betting he is tuned.
Pull your ECU #31 and trans #29 fuse to reset the adaptives at the track. Leave em out for about 10 minutes and re-install.
1300 miles. Definitely not engine problem. 25 in tires, back seat,3/4 tank gas. The other 1320 let off, he was sandbagging for an average of 3 runs for a dial in. Weird way the nmca runs it. I am going to try the fuse pull. Just don't see how it could be so askew in 1300 miles. All my Scats and Hellcats have been manuals, so this is frustrating. The A8,s I have been in have shifted crazy fast.
I was in drag mode. The other 1320 was bone stock. A couple of them were running 11.80,s in showroom condition. If it was shifting the way it should,easy 11 second car.
Interesting. I'm not familiar with the latest programs.....as my 16 has only MDS and SPORT mode! I guess you did not see what RPM it is shifting at. You might try different modes to see if there is a shift point variance. Right now you are almost .4 from a 11 second run. If you do not find anything it might be time to get a re-flash. Could be you got a corrupt programming. 1,300 miles is still tight though. Good luck with this and please advise on what you find..........Gene.
I don't mean to be that guy, but I seem to remember the manual saying not to bring the car to the drag or track until after 5k miles. Just saying man. Break the car in before you expect it to perform top tier.
Anyone else had this problem ? When mine shifts fine and has run 11.60s but at least one to two passes a night at the track out of nowhere it will shift very slow in every gear and tosses out a 11.80 pass .. It's like it cuts power on the shifts for a second ..Next pass or next few passes will be fine and out of nowhere it will do it again. . It makes the car very hard to bracket race because you never know when it's going to do the sloppy shift.. Dealer said they can't test drive it at full throttle to feel the problem .They said there is NO TSB for shifting problems ..
Mine is going to the dealer Tuesday for the trans shifting problem .. It shifted bad 4 out of the 5 runs I got at the Hemi shoot out .. First to second gear shift was so bad it would toss my head forward to the steering and when the power came back on it would slam my head back to the head rest .. I tried the fuse pull trick on the PCM and TCM and it didn't help at all ..
Hi Lee, thank you for following up to provide this update. I'm glad to hear that you are working with your dealer on this. Please feel free to keep us updated regarding your situation. If we can be of any additional support while your vehicle is in service, we are just a PM away.
Rob
DodgeCares