I will post this in here as there was some talk about Vtune by a few of you the other week, so I thought I would post my opinion on them.
As some of you may know, I had my Piper Fast Road Cams fitted two weeks ago.
At first they didn't seem to give me that much of a power increase, but as the days went by and the ECU adjusted itself the cams really came to life and I could feel a very "noticeable" difference in top end power and also the smoothness of the power delivery. The torque curve had noticeably smoothed itself out (before the engine was gutless till 3.5K revs then took off). I felt it was under fuelling though right at the top of the rev range.
I was put in touch with a company called "Vtune" http://www.vtune.me.uk/home.html
Vtune are a nationwide home visit company. The guy who runs the company Lee turned up at my door at around 2.30pm.
I am very picky about who I let touch my car and I have done my homework to find the best company to carry out work on my car.
Lee came out in the car with me so he could get an understanding of how the car performed and also to see what I was wanting from the remap.
On arriving back at my house Lee got to work and extracted the information needed from my cars ECU to begin the mapping. Then it was into the back of his van to begin sorting through the data and finding the ignition, fuel, spark and timing maps. He then started to adjust parts of these maps (only above 3k revs to start with) to allow for my cams and also to allow for the deCAT manifold I will soon fitting.
With this 1st stage (only remapped above 3k revs just now) the file was loaded back into my car and I took it for a spin to see what I though. Initial thoughts were it was brilliant and it had made such a difference to the top end. Above 3.5K revs the cars takes off all the way to the redline. It just seemed to pull so much easier to the rev limiter and the under fueling problem had seemed to be sorted
Once I arrived back at the house, Lee began mapping the bottom half of the maps (under 3k revs). The lumpy idle of my cams was sorted out as much as it could be and the "gutless" feeling up until 3.5k revs was sorted by advancing the the ignition.
The finished file was loaded back onto my ECU and I went for a spin. MY GOD is all I can say. The difference in the way the car drives is amazing, it just pulls and pulls like a train all the way to the limiter and easily gets to silly triple figure speeds!
I can definitely feel the benefit of the cams and remap, they are by far the best £500 I have spent on the car. The transformation is totally nuts. Lee is a sound guy and runs a very good company which provides an excellent service. I couldn't recommend him enough. My advice to anyone, is to get on the blower, hand of the cash and experience the transformation of your car!
Only thing Lee was unable to do today was increase my rev limiter. He has a copy of my remapped file and is going back to his base to investigate and resolve the problem with the help of other software he did not have with him today. When he is back up in Scotland next week, he is going to pop in to load up the finalized file with my rev limit raised to 7200RPM. (means I will get to 60 in 2nd )
VTune, brilliant company, excellent home service and Lee is a very honest and decent guy.