fuel injector unit for Superior IO 382

Has anyone used the bigger fuel injector unit for the Superior IO 382 instead or the standard Bendix unit? I know its a major modification to the lower cowl. Was wondering how much more HP you get for all that work.
Gregg

The Bendix fuel servo is the same for 4 and 6 cylinder Lycomings. Don at AirFlow Performance can set it up for any Lycoming from my understanding?

Yes, call Don at AFP and see if you should use something like his FM-200 vs the FM-150. The latter is typical for O-320-360, 150-185 HP and the former is typical for ~200 HP engines and up.

He also has options for mounting the servo horizontally on a vertical sump, which is typical on 6 cyl rockets. I have the horizontal setup on my O-360-A4M with vertical sump.

For something in that HP range, I'd think the larger injector would be advised, despite the work you'll have with the cowl. Dan Horton did some research for a Kit Planes article that I found most telling:

http://www.vansairforce.com/community/showpost.php?p=1121772&postcount=14

I'd definitely go with the FM-200 or 200A. My two cents. Plus Don and Colleen Rivera at Airflow Performance are great people to work with!

Raymo said:

Yes, call Don at AFP and see if you should use something like his FM-200 vs the FM-150. The latter is typical for O-320-360, 150-185 HP and the former is typical for ~200 HP engines and up.

He also has options for mounting the servo horizontally on a vertical sump, which is typical on 6 cyl rockets. I have the horizontal setup on my O-360-A4M with vertical sump.

Click to expand...

Ray: Are you using one of Airflows elbows?

Don Broussard

cajunwings said:

Ray: Are you using one of Airflows elbows?

Don Broussard

Click to expand...

Yes. Here is a preliminary photo when I was working on fitting everything together. I ended up going to the Trombone exhaust (Vetterman) and removing the top phenolic block for cowl clearance. Another, larger phenolic block was sanded at an angle (1/4" on upper right to 3/8" on lower left) to get the offset filter to line up with the cowl air inlet (3rd photo is pre fix). Still had to put a small bubble on the left side of the cowl for filter clearance.

This will all change when I can spend the money on a Superior Cold Air Sump but I am happy with the setup.