PES Chip Experience
Last Friday, I drove down to PES and met Tony and Hugo. In about an hour, they’d installed their chip on my Elise.
That morning, I had run a timed stretch in 3rd gear between 3500 rpm and the shift light on a particular piece of road. I wanted a long enough time to minimize any error the part of my reflexes (hence 3rd gear), and I didn’t want a shift to add more variables.
Yes, this test isn’t scientific, but has served me well for about 40 years.
The time was 9.27 seconds. Engine temp was about 185, and the road was reasonably flat.
After the chip installation, I drove about 100 miles (and drove an A-M DB7 V8) and returned home about 12 hrs later. I went to the same stretch of road and ran the same test. Engine temp was about 182.
The new time was 8.24 seconds. In this test, then, I picked up a full second.
Even given the vagaries (my reflexes, when the red shift light appears, etc.), this is a significant improvement.
The car runs perfectly and simply feels better throughout the rev range. The cam change is still there, but more gently and at a lower RPM.
Running through all the gears will be improved, as no shift will drop the engine into the previous “dead zone”.
Overall, I am very, very happy.