Frequently Asked Questions
For what specific engine models has the FAA approved GAMIjector® fuel injectors?
This question is probably the most popular. So popular is it, that we have a specific section dedicated to your need. Simply visit our compatibility page for the latest FAA approval on both Continental Motors and Lycoming engines.
What about small-bore Continental Motors engines like the IO-360 and TSIO-360 engines in Mooneys, Skymasters, etc.?
These engines have precisely the same sort of mixture imbalances as the big-bore engines, and would benefit from GAMIjector® fuel injectors in exactly the same fashion. And because many IO-360 and TSIO-360 installations tend to be tightly cowled and hot-running, the reduced CHT's make possible by lean-of-peak operation will be especially valuable with these powerplants. The FAA required GAMI to go through a completely separate set of certification tests before they approved GAMIjector® fuel injectors for these small-bore engines. The FAA has approved the STC and GAMIjector® fuel injectors are now available from GAMI.
What about Continental Motors engines with top-mounted "tuned" induction systems, like the GTSIO-520 and IO-550-G? Would they too benefit from GAMIjector® fuel injectors?
GAMI has instrumented and flight-tested GAMIjector® fuel injectors in a number of these engines. While they have less uneven mixture distortion than other Continental Motors engines, the GAMIjector® fuel injectors provide noticeable improvement, although not as much as with bottom-induction engines.
What about fuel-injected Lycoming engines? Could they benefit from GAMIjector® fuel injectors?
GAMI has gathered data on a number of these engines, and found that injected Lycomings also have substantial mixture distribution imbalances that could be corrected with GAMIjector® fuel injectors, although for completely different reasons than in the Continental Motors engines. Among other things, we've found that Lycomings manufacturing tolerances on their fuel injector nozzles are extremely broad, causing them to have significant variations in flow. GAMI now is certified for most normally aspirated Lycoming engines. GAMI has also completed FAA-Certification Testing for the turbo-charged engines and has the STC in hand. For the latest on GAMIjector® fuel injector engine certifications, see our compatibility page.
I'm interested in ordering a set of turboGAMIjector® fuel injectors for my Cessna T210. However, my GEM shows that my #4 cylinder peaks first, not #1 or #2. Will turboGAMIjector® fuel injectors still work on my engine?
GAMI gets questions like this all of the time. The answer is: if your bottom-induction Continental Motors engine does not exhibit the characteristic maldistrubution pattern in which the rearmost cylinders (#1 and #2) are leaner than the others, then there's something wrong with your engine! Your engine might have mismatched, out-of-tolerance, or dirty injector nozzles. Or you might have an induction leak. GAMI has never seen a bottom-induction Continental Motors engine with equal-flow nozzles and an airtight induction system that did not exhibit the characteristic rear-is-leanest pattern.
My engine is still under factory warranty. Will installation of GAMIjector® fuel injectors on my engine void my warranty? What is Continental Motors' position on this?
Excellent Question! Continental Motors' official position---is that Continental Motors will not dishonor any warrant merely because of the addition of any STC'd part or modification. This has been publicly confirmed by several Continental Motors representatives, such as Loren Lemon, the West Coast Technical Representative. In addition with over 7,000 sets sold to date, GAMI is not aware of a single Continental Motors warranty claim where GAMIjector® fuel injectors were named as a contributing factor.
They do, however, reserve the right to dishonor the warranty if they can demonstrate that the failure was caused by the modification, with the burden of proof being on Continental Motors.
Once again, GAMI now has over 15,000 sets of GAMIjector® fuel injectors and turboGAMIjector® fuel injectors flying, and all were sold with an absolute money-back satisfaction guarantee. To date, no GAMIjector® fuel injector-related warranty claims have come up with Continental Motors.
If you have any questions that are not answered here please contact us.