Continental Motors, Inc. "Position Tuned" Nozzles

Just got a new Continental Motors engine? Happy about having their new "tuned" nozzles? We get calls here everyday from people who want to order GAMIjector® fuel injectors because they're just not happy with the new Continental Motors set. But don't take our word for it, see for yourself with actual flight test data that was submitted by some of our customers. We'll let you be the judge.

A recent email:

To the Fine Folks at GAMI

I would like to share my experience with the recent installation of GAMI injector nozzles in my 2008 Mooney Acclaim with a TSIO-550-G twin turbo-charged engine. This engine from the factory has a TCM tuned injection system with position tuned injector nozzles. After doing a GAMI flight test to measure the actual fuel flow spread I learned that my tuned engine was actually 1.0gph spread from the first cylinder to peak to the last cylinder peak. After installing the GAMI precision matched injector nozzles my GAMI spread is now 0.3gph.

My engine now runs smoother, idles better and at a lower RPM and runs totally smooth at 85F LOP. What a fantastic improvement on what was a factory tuned engine. If you are thinking about GAMI injectors move forward and do it!! It is only about a 2 hour installation for your local mechanic and will transform your aircraft into a more economical and cleaner burning transportation platform. The savings will payback very quickly.

John Balow

Click the images for a closer look at a B55 Baron test.

B55 Baron Left Engine
B55 Baron Right Engine

Here's another that was faxed in from an A-36 owner.


Another exchange:

We have three 206's with the Atlantic Aero IO-550N modifications installed. These engines come from Continental Motors with their "Position-tuned nozzles." Unfortunately, we did a GAMI test on our newest installation and found a 1.6 gal/hr spread between the leanest and richest cylinders. We confirmed the nozzles were in the correct positions as per the part numbers.

Do you make nozzles to fit these engines? How do they compare to the Continental Motors nozzles? I think the base hex fits a 7/16" socket rather than a 1/2" socket. What do you charge for a set of six nozzles to fit this engine configuration?

We hear that all the time. We do make nozzles for that application and we can get that spread much closer. The list price is $799 and that kit can generally ship the same day you order them.

Another that was downloaded from a IO-550D-equipped Cessna and emailed in.

An IO-550D-equipped Cessna

The latest, from a normally aspirated SR22 (IO-550N) with Continental Motors' "position tuned" injector nozzles.

A normally aspirated SR22 (IO-550-N) with TCM's position tuned injector nozzles


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