I've noticed an approx 15% HP discrepancy in the new GTECH Competition Pro vs the older GTECH pro unit. I own both the new one and old one, and in fact even went out and got another GTECH competition Pro just to make sure I wasn't stuck with a faulty unit. Dozens of calibrations, firmware updates, and road tests had me convinced that the new gtech pro HP readings were way way off from real life dyno numbers. I know, because I've spent lots of hours and $$$ tuning on several different dynos.
I called tech support at the GTECH company, and eventually worked my way up to one of the vice presidents there. We went into indepth discussion on this issue, and they're looking into it further. Still waiting to hear back from them.
Has anybody else had similar experience? When I compared the old Gtech vs the NEW Gtech side by side in the same car at the same time, the new one ALWAYS read about 15% lower HP than the old one, while the old Gtech was always DEAD on with actual dyno readings to within a few HP. Ie/ on a stock
MCS, the old gtech pro will read around 135-140RWHP, which is dead on to the actual factory rated 138RWHP. On the other hand, the new Gtech competition Pro will always read way lower in the range of 115-120RWHP.
The tests were performed over a course of a couple weeks, with multiple calibrations to ensure it wasn't due to this. In fact, I even got another brand new Gtech competition pro, and still got the same results.
