My mechanic said that your product was very good, and he was correct.
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.
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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-2 Connectors (3)
- Installation Instructions
Description
Package
Retail Price
FT-90 Fuel Flow Transducer
FT-90
$388

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Brett U. from Idaho
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Piper PA-28 S-180 Cherokee
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Good to go! Excellent instructions and easy install. Outstanding instrument!
Love the situational awareness that the CGR-30 Combo gives me. Easy to read and understand displayed information.
Very easy to install. Harness is clearly marked. Instrument worked first time. The instrument is intuitive and easy to use.
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William F. from Maryland
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Nice experience working with [sales]… to configure my gauges.” Reason I chose EI? “Past experience with EI.
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Clark M. from New Hampshire
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I installed a VA-1A Volts/Amps Insturment [sic] in my 1970 V35B to replace the original analog amp meter. What a great dual purpose digital gauge! Installation was simple and the product is very well made. It goes well next to my SuperClock I installed a couple of years ago. EI makes great products and this one will satisfy the most discriminating owner.
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Brewer P. from Mississippi
- Aircraft
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I like how the kits ship with everything needed for install and the wire labeling was very helpful.
- Customer
Nathan V. from Alaska
- Aircraft
c-150
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Keep it up. I’ll keep coming back.
Great product. So easy to read compared to the originals.
Installed digital volt/amp gauge in PA 28-181. Great unit easy to install. Much better than original.
Big improvement over old cluster (gauges). Good customer service.
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William P. from Louisiana
- Aircraft
Cessna U206
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