Thought I'd share some initial feedback that I gave on the Livernois V4 tune for the XSport.
Let me start out by saying 93 Performance 3 bar V3 was a huge improvement over stock. There were a few things that bothered me though... the shift points were too quick, the transition through a few of the gears were very hard, and I felt that I wish it had a little more power to it. Mileage wasn't bad considering my driving, but not going too nuts, I averaged 19.1 mpg on the dash gauge.
Now for 93 Performance 3 bar V4. I have only been driving it a few days (couple hundred miles), but here are some of my thoughts on it so far. The shift points hold out longer and transition is nice and smooth, it now feels "in tune" with the rest of the drivetrain.
"Torque", it definitely has more torque/ power. There is no doubt that there is more power and I would like to see the Dyno sheet between the 2 versions. LOL Cruise at about 30 and punch it to really feel it set you back. Switching lanes, hitting it to pass a car or two and speed shoots up faster than V3.
The other day I stopped at the usual gas station to fill up. There is a nice open stretch of country highway, so I usually punch it coming out of the station up to about 65-70. Did it with V4 and the tires squealed very loud, which it never did before, it would just go.
And last, so far the mileage has increase about 1.5 mpg reading 20.5 mpg when driven the same as the 19.1 mpg I was getting before.
So first impression is I liked Version 3, but now I'm loving Version 4 so far! It's only been a couple days, but it just feels much improved.
As far as things that could be improved on this... Well of course more power, but I know just tuning has it's limits. I would like a quicker build up of boost, which I think an exhaust upgrade/ downpipes would be needed to help with that.
I just think V4 is a nice upgrade, very noticeable, more refined with more power over V3. I'm looking forward to more driving time with it, and any other noticeable changes, positive or negative, I will update here. But so far I haven't found anything negative about V4 compared to V3.
If you guys at LMS have other "cool ideas" for the XSport that you want someone to try, let me know.
Thank you Livernois for great Continued Support to your customers!!!