Hello everyone. I?m new to the HP Tuners Bulletin group, so please excuse me if I posted a topic that has already been posted before. I upgraded my fuel injectors for 65lbs to 90lbs on my 2019 Dodge Challenger R/T Scat Pack 1320 with a Whipple W175AX 2.9L supercharger. I have a aftermarket interchiller, a 90mm BBK throttle body, a Hellcat top and bottom stock air intake, running methanol injection, and I?m running a 2.75? pulley down from the stock 3.375? pulley (14 psi before I changed my fuel injectors). So, all the Tech Data has been updated in my tune, and I have an upcoming dyno session soon. However, when performing a cold start when the engine temp (oil) is around 50 degrees Fahrenheit, my Challenger fires up with no problem. But about 20 seconds into the start up, my rpm?s drop from 800-850 down to 400-450, which almost stalls the engine. This continues until the engine temp is over 100 degrees. Any suggestions to help improve this issue before my dyno session?
Reply With Quote
