FT-90 Fuel Flow Transducer
FAA Approved Instrument
- FAA TSO’d and STC’d with EI Instruments
- For 350 to 550 HP engines, or gravity-feed engines.
- Gold anodized aluminum body, 5.3 ounces.
- 1/4″ female NPT, 1.375 in. (H) x 1.620 in. (W) x 1.90 in. (L)
- 3 to 125+ GPH, .05 PSI drop at 20 GPH, .2 PSI drop at 40 GPH
Have a gravity fed engine?
Take a look at our FT-60, engineered for engines with an engine-driven fuel pump. See below for more details.
Questions?
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Product Overview
Model Comparison
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Model | FT-60 | FT-90 | FT-180 |
Engine Type | Up to 350 HP engines, engine driven fuel pumps only. | 350-550 HP engines, gravity fed engines. | 550 HP+ engines, engine driven fuel pumps only. |
Fuel Flow | .6 to 70+ GPH | 2 to 125+ GPH | 2 to 250+ GPH |
Connection | 1/4″ female NPT | 1/4″ female NPT | 1/4″ female NPT with #8 male flare adapters |
Typical Use | Piston with Fuel Pump | Piston Gravity Fed | TurboProp |
Specifications | Download Info Sheet | Download Info Sheet | Download Info Sheet |
Prices
Retail Prices
Packages include:
- FT-90 Transducer
- OLC-1 Connectors (3)
- Installation Instructions
FT-90 Fuel Flow Transducer
FT-90
$296

Specifications
Videos
Documents
Documents & Manuals
Testimonials
Customer Testimonials
I have heard only great words about EI… Won’t be able to install till at least April but I know you are very helpful when it comes to questions.
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[Customer service] is great!
- Customer
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- EI Instrument
Awesome Tech Support. Like the functions it supports and the fit and look in the panel.
- Customer
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- EI Instrument
Looks Great, and intuitive to use. Packs a lot of information in a tight area, yet, I don’t need my glasses to read it!
- Customer
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- EI Instrument
I love my new EGT. Very accurate and has ambient air temperature so I know how cold my engine is before I start it. Easy to see lighting.
- Customer
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- EI Instrument
Much better quality with the bezel and buttons and knobs [vs. competition]. Also much easier to navigate and add fuel.
- Customer
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- EI Instrument
Good reviews and I don’t have to modify my panel. Additionally, the reps at Oshkosh were extremely helpful and answered all my questions.
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- EI Instrument
Easiest company to deal with and an awesome product! Price, Certified for Primary, and Features.
- Customer
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- EI Instrument
Awesome Product! Great product and fantastic support!
- Customer
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- EI Instrument
Straight up install no issues. Works as advertised!
- Customer
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- EI Instrument
Love the look and having every piece of info in front of me… Better price and look [versus competition].