Anybody know the total amp draw of the V3 system when on? How about total amps with the upgraded fuel pump for the 95? Two alternators, four months?
Announcement
Collapse
No announcement yet.
V3 Total AMP Draw
Collapse
X
-
If the system is wired properly, you shouldn't have a problem. Draw wise you are only adding a FASS pump and guage. The controll unit draws minimal power as does the guage. The pump draws the most power and that is determined by which pump you have, the 12V or 24V. The thing about the pump draw is that when the pump builda up pressure it turns off your factory pump, which offsets the draw. The system in whole shouldn't draw more that 20-25amps total, but that's just a guess.'01 F350, lariat LE, cc, lb, drw, TSP 6pos. chip w/ swamps ss tunes, FF stage 1.5, MBRP 4" turbo back, cooling mist water injection.
Comment
-
-
Originally posted by greasedltn View PostIf the system is wired properly, you shouldn't have a problem. Draw wise you are only adding a FASS pump and guage. The controll unit draws minimal power as does the guage. The pump draws the most power and that is determined by which pump you have, the 12V or 24V. The thing about the pump draw is that when the pump builda up pressure it turns off your factory pump, which offsets the draw. The system in whole shouldn't draw more that 20-25amps total, but that's just a guess.
Comment
-
-
Guessing 25 plus
I am guessing the whole system draws more then 25 amps. The Fass is probably less then 20, but adding another fuel gauge (1-5 amps?), the timer cards(2-10 amps ???), the heater jacket (5-20 Amps?), and the replacement electric pump (5-20 Amps?), and they all add up to some electric consumption.
I am also guessing the stock alternator is 75 amp. With full accessiories ON, the truck will usually consume about half of what the alternator puts out. So add 25 plus amps, and you are near full consumption.
On the other veggie trucks I have done, we were able to get a higher output alternator to overcome this. The 95 Ford I am told requires a new wiring harness making this a little more of a project in time and $$$. Good thing it is not my truck!
I did the install, and the owner now maintains it. Just like most veggie conversions, problems only begin after the install. Hopefully DFA chimes in and tells us the real answer to the amp draw question, I don't have time to play with my multi-meter.
Comment
-
-
135 Amps should be more then enough. That is usually what I have upgraded the Dodge's too, from 75 Amp. The truck owner is no longer on the Ford Alternator, I think the stock one lasted over 250K, might have been changed before, not sure. With less then one year on the V3, the truck has now smoked the first alternator, changed to a Carquest alternator, fried that one, and now on a warranty Carquest alternator. We'll see how long this one lasts. I don't think the Carquest alternator is 135 Amp. Maybe he should have gone to Ford for the part. He is on a couple year old batteries also. They hold a charge fine, but with the massive draw of the system, the alternator is probably working to hard, maybe??? New batteries and a bigger alternator is what I suggested, only a couple hundred bucks.
I am Dodge guy, every time his Ford breaks, or the V3 malfunctions, I get to learn something new.
Comment
-
-
Searching around at thedieselstop.com, it seems stock are 130 Amp. Sounds like there are a couple upgrades out there. Dbelectrical was one mentioned. A 210 Amp, or a 190. A new wiring harness is in order.
Could be old batteries causing the problem also. I know they have been run low or dead a few times. From what I read that can help kill alternators.
It also sounds like Fords are already running near capacity with just a few accessories on. Still curious about the total amp draw of the V3?
35 Amps? Final guess.
Comment
-
-
Alright, so here is the Skinny on power. For 1997 there were three OEM Alternator options- 95, 130 and 210 amp. Standard for the 7.3 was the 130 amp option. So most of you will have an OEM 130 amp. To get striaght to the answer- system draw depends on options and pumps. The control cards draw less than an amp, so negligible there. The breakdown is as follows:
Heater Jacket- 16amps
24v pump 7amps
12v small pump 14amps
12v big pump 20amps
plus or minus 2amps for all items.
Most systems come with the 12v small or the 24v pump(more recently) putting nominal system draw at between 23-30amps. Now for the rest of the story:
. With the truck running at idle, and no accessories on, the truck draws about 16amps of current to keep running given time to level out for the initial draw of starting the truck. Listed below are some average draw numbers for various continuous draw items:
Truck running: 16amps
Headlights:
low 17amps
hi 19amps
Heater on high: 26amps
w/AC 32amps
typical radio 5amps
There are a few other monior items that will vary based on vehicle like interior lights, but those are the main items. So adding those up with the max values we get 72amps of draw, then with system at say 32amps we are now at 104amps of draw. And of course you never want the alternator maxed out, so with a 95a alternator we would be in trouble, but with the 130 you are in good shape assuming you don't have a bunch of other accessories. As you can see it adds up quick.
These numbers are also reflected on the high side, I seriously doubt that most of us always drive with the heater on high, headlights on high all the time. So in the end a stock diesel alternator is more than able to handle the load of our system.1999 F-350 Lariat 7.3 385,000 miles and counting
2000 VW Jetta 2.0
1966 Jeep J-300 with EFI 351W
Comment
-
-
Nothing beats getting the answer straight from the experts! Cool...Greasin & Grinin
Vegi oil powered since Aug 08
2006 F-250 PSD - CC, Lariat, 4X4 - Vegistroke converted 1/27/13!!
2008 F-250 PSD - CC, Lariat, 4X4 - Sold
2005 F-250 PSD - CC, Lariat, 4X4 - Sold
Comment
-
-
Originally posted by Clay Henry View PostDoesn't matter, the pump delivers fuel at the same rate if your idling or at WOT pulling a load.
Yeah, just think of it as an "on-off" switch type deal. It's either fully on, or fully off.Greasin & Grinin
Vegi oil powered since Aug 08
2006 F-250 PSD - CC, Lariat, 4X4 - Vegistroke converted 1/27/13!!
2008 F-250 PSD - CC, Lariat, 4X4 - Sold
2005 F-250 PSD - CC, Lariat, 4X4 - Sold
Comment
-
Comment