Originally Posted by
Christian and Beccy
Chip, I don't have any flag to wave on here, we do next-to-no Ford mapping.
You can't map inbetween the cells, all you can do is take into account how the ECU interpolates and map the values of the cells accordingly. Thats what I was getting at.
Positioning of the cells is the most important factor in terms of achieving drivability, NOT just entering values in the existing positions, it sounds to me like you only really do half a job essentially, on modern ECU's you can get away with this totally as their resolution is so much higher that it allows you to do half a job and still get 95% of the results, but I honestly believe that if you tried to map on a lower resolution map, you wouldnt get anywhere near the results that Stu or Karl or Tony can do, or even myself for that matter.
Its repositioning the cells in order to better account for the natural VE curve of the engine that is critical when mapping a lower resolution map, and you absolutely cannot do that by just mapping held values, you need to drive the thing!
Compared to being able to do neither on the road. You certainly can't hit a cell accurately, let alone consider interpolation.
Not true with regard to the interpolation at all, I think your lack experience of road mapping from your comments so far.
All that said, VERY detailed and faultless mapping takes OEM months with teams of mappers, so it's all a comprimise anyway to suggest you can do the same in one day (or in the case of most tuner alot less).
Absolutely and totally correct, that is one of the most honest statements I have ever seen from any rolling road operator.
We spend alot more time than most on the off-boost mapping and achieve good driveability. We usually keep a car thats having a full-map for 2 days at least so that we can check it right through the heat cycle too. Remember I get to see alot of maps and compare them to standard default maps and it never ceases to amaze me how many so-called tuners do nothing to the map other than idle and full power.
Agreed, but unless you actually drive the car, you cant check it, you might think you can, but you cant IMHO.