Fuel Flow Meter & Fuel Injection

[WaterDog]

I was going to ad a navman 2100 to my scow. However, since my engine is fuel injected is sounds like it wont work due to the fuel return line.

Any of you guys know how much fuel is returned in a Chev Vortech 496?

I see Floscan has a second tranducer for FI engines in the meters they offer..

[Bait O' Eggs]

Just get 2 of those navmans, they are small, install one on the feed line, one on the return line, the difference is what you burned. :jester:

[Redbull]

Roy, are you being serious?

Because for a totally analytic mind (like mine :help:), that made perfect sense.

Would the real Cliff Claven please stand up?

[troybuz]

Waterdog,
Have you spoke to Floscan...I see on their website it says call first for fuel injection.
Please let me know which model your considering. (if your considering).

[WaterDog]

Troy, I would very much like to have a fuel fow meter but I got a list of other things I want as well.:rolleyes: I know the floscan is quite a bit more pricey so that may move it a little further down the list. The navman at $150 looked good at first but doesnt sound llike it's going to work. :depressed:

I will talk to floscan however.

[Keta]

BOE,
What would you do after 21 gallons?

[corrirod]

Rich, depending on how you have your fuel injection return line setup you may be able to use the Navman. If your return line goes all the way back to the tank then you'll need a special flowmeter but if your return line just goes back to a "T" fitting in your fuel line then all you need to do is plumb the flowmeter in before the "T".

I hope that makes sense. :shrug: If not give me a call tomorrow and I'll try to explain it over the phone. 503-332-7785

[WaterDog]

Thanks Rod. Yeah that does make sense.

I got list of things to do so I'll add that to the list. Actually came away from the show with a lot of help from the manufacturers.

Hey you forgot to send me home with a new trophy. :shrug: :jester:

[Hevyduty]

I went down this road last year with a new vortec 350.Do a web search for a FLOSCAN 5800. This was the only option that I was able to come up with after a lot of reasearch. I also considered a "T" in the return line but was strongly advised against this. Most new fuel injection systems return the majority of the fuel pumped from the tank, back into the tank. If you return into the suction line after the flowmeter you are causing the fuel to recycle into a loop. This fuel travels through two electric fuel pumps and assorted metering equipment again and again, friction in this loop and the fact that it is traveling through the hot engine compartment causes this fuel to get hot. The result is a good old fashion vapor lock. At high fuel useage rates you may be bringing enough cool fuel into the loop to keep from locking but when you slow to trolling or docking speeds the problem is worse. The electric pumps pump the same flow at idle as full throttle and almost no cool fuel is introduced to help with cooling.

I have used FLOSCAN products for several years now and wouldn't own an offshore boat without this or a similar product.

The installation was no harder than the standard unit with the exception that two flow sensors are used.

Finding a workable flowmeter was the hardest part of converting from the old carb engine to the EFI vortec engine

Going from a tired 260 HP to a fresh 330 HP with no weight penalty was great. I don' know what boat would need a big block with this power but I want a ride.

Good luck

[sorryhoney]

Hevy,

How did the 5800 work out for you? I have a 502 EFI and need a 5832-231-1 for my T-Jet. Where did you get yours, and how much was it? Sounds like the 5800 series from Floscan is the only option for a EFI with a return line. Been looking at it, just hate to spend the $$$$$. Thanks. :redface:

[Hevyduty]

The 5800 was the only option that I could find also. I called floscan to check if a small diesel flowmeter might save me some money as they also use a return line. The diesel meters need to have pulsation dampeners installed because of the nature of the high pressure mechanical pumps.This drives up the cost and is not needed with the electric EFI pumps.

Floscan refered me to WESTERN BRANCH DIESEL in Portsmouth VA, The dealer that they felt had the most experience with these meters. Cost $475 plus frt.

I bit the bullet , did my own install and never looked back.

It was very accurate right out of the box, both the floscan meters I've used have required no calibration . never off more than 1-2 gallons in a 150 gallon fill.

[strato fisher]

Floscan definately has the 5500 model that will work with the return line EFI like I have on my Kodiak. It is model 5832-231-2. Available at www.dbmarine.com (http://www.dbmarine.com) for $410.62. I have my eyes on one and will have it once I have the extra cash around the house. Talked with the Floscan guys and this is the model to get.