I just took a 7hour trip each way using my V4 93 3bar and in drive mode at say 70-80mph when I mashed to the floor to make a high-speed highway pass mine would not upshift for a second or two at redline. I am really worried I might have transmission problems but reverted to OEM this does not happen. OEM also short shifts the gears so I have to think its the V4 tune? Is this similar to what yours was doing and no longer doing it on V5? Oh, and every time I drive the truck I disable Traction control, so that was not causing this shifting issue.
Thanks guys, I'm getting around 14 mpg in town (going for kids to school, store, etc) just regular driving. And in hwy at 75mph cruise controll on a 250 mile trip, it gave me 18mpg. It got me thinking if something is wrong cause my 2014 5.0 gave me 24 mpg on that same trip @ 75 in cruise control.
[MENTION=87965]BlackJack[/MENTION], we have almost the same set up EXEPT I have the windstorm cai, and u r getting better mpgs. Could it be my foot? Or something could be a little wrong? I've been off the boost in this tests. Thanks once again
[MENTION=87965]BlackJack[/MENTION], I've been wanting to do the BOV VTA mod, any downsides to it? Haven't affect the LMS tune in a wrong way? Thanks.
V5 seemed to work good for me.
I switched back to V4 for some testing, but still have some hesitation issues when I kick down the trans full throttle at about 70 mph. Issue seems more in the trans/ shifting than engine. Felt like it briefly went into neutral once on me.
I plan on switching back to V5.