Hello everyone,
new to tuning
I have a 89 Dodge Ramcharger that is hemi swapped, it has a 2013 5.7/645rfe Truck engine with a 6.4 VVT camshaft (non mds) Im having some drivability concerns. Ive had the truck dyno tuned (343rwhp 334rwtq) it runs good at WOT but it has some issues like when the engine is cold and i take off to start driving at less than 1/4 throttle it stumbles then catches itself once i give it more throttle. it also lags a bit on take off when hot not sure if these are related my next concern is why the VVT is turned off (its a VVT cam) also i was looking at my VE table and wanted someone with experience to look at it because it does not look very smooth again new to tuning. so my question is why is the VVT turned off and can it be turned on safely (i know the VVT will need to be tuned) and is there something im missing in the tune that would explain the stumble on take off? Ive already adjusted the throttle voltage and it did help some. and if someone could take an overall look and give me some pointers it would be greatly appreciated
Im going to post the original tune from the tuner and the one i adjusted as well as some logs
Thank you