Quote:
Originally Posted by PTAddict
All true, and very good advice. But if you're suggesting that the only reason these systems sometimes fail to work well is lack of attention to detail in the install - well....
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I wasn't suggesting that at all.
What I AM SUGGESTING is that many (most) of the time it's not a defective part - it's a defective install. Yet people are most apt to quickly blame the EFI as the culprit.
For many -- the EZ EFI (or similar system) is nothing more than a carburetor replacement... and that is what it was meant to be. It's simple. It's effective. It's cost effective from an installation standpoint and from the lack of professional tuning and dyno time. Let's NOT try to compare the cost benefit analysis because there isn't one. Tuned vs Self tuning systems are not marketed nor meant to be for everyone. Many just don't need the tuned version.
Carburetors need tuning to be optimized. So does a self learning system such as the EZ EFI. There are Accel Fuel issues (particularly with IR systems) that can be adjusted etc. But A/F "ratios" are not that important to hit dead on unless you're trying to optimize for drag racing etc. You'll see very little HP/TQ number difference on the dyno between a WOT of 12.5 vs 12.8. The correct TIMING CURVE and TOTAL TIMING is far far more important. So my point is that for many people the tuned systems just aren't required or necessary to have a great driving and running car.
The "horror stories" are what scare people away from doing EFI AT ALL and that's more my point, because I'm a firm believer in EFI. Install the stuff with CARE and follow the instructions and
most of the time the outcome will be very satisfying.