EvilRufusKay Posted April 9, 2004 Share Posted April 9, 2004 For you guys running a fuel cell...how do you monitor your fuel level? I will be honest I have not searched or done any research... thought maybe someone might be bored and shoot me an answer!! Signed, Lazy Rufus Quote Link to comment Share on other sites More sharing options...
Tim240z Posted April 9, 2004 Share Posted April 9, 2004 With a fuel gauge, just like any other normal human being Quote Link to comment Share on other sites More sharing options...
EvilRufusKay Posted April 9, 2004 Author Share Posted April 9, 2004 OK Mr. Smarty Pants!!! ( my boys new favorite thing to say) I suppose I deserved that!! What about the other end of the animal? Do fuel cells come with their own sending unit? Quote Link to comment Share on other sites More sharing options...
Tim240z Posted April 9, 2004 Share Posted April 9, 2004 Uhh...no actually the gauge uses mental telepathy to sense the amount of fuel...sorry, I'm in a strange mood...must be Z-car withdrawls Most cells do come with a sender, usually a GM style (ohm) sender. I used this one: http://store.summitracing.com/partdetail.asp?part=SUM%2D290100 Quote Link to comment Share on other sites More sharing options...
EvilRufusKay Posted April 9, 2004 Author Share Posted April 9, 2004 I'm thinking more along the lines of something like this. This one is only 8 gal though. EDIT: Tim for the cell you used...did you drop it into the spare wheel well like this one? Did you just set it in the back? I am going to check out your site to see if you have any type of write up on the install...I guess I will do some searching as well... 'sigh' Quote Link to comment Share on other sites More sharing options...
fl327 Posted April 13, 2004 Share Posted April 13, 2004 I love the ATL well cells, just dont like fuel lines in the car. Quote Link to comment Share on other sites More sharing options...
Jason Jarvis Posted April 30, 2004 Share Posted April 30, 2004 I THINK the round black object to the left of the filler is a sender in the ATL well cell pictured. In my experience (which is limited I'll admit), most fuel cells do not come with senders. Many of the "street" cells do though, like the one shown above, and the Summit one I have.... http://store.summitracing.com/partdetail.asp?part=SUM%2D290215%2DSD If you don't mind cutting and drilling into your new cell, there are several kits out there for senders too. Jason I'm thinking more along the lines of something like this. This one is only 8 gal though. Quote Link to comment Share on other sites More sharing options...
blueovalz Posted April 30, 2004 Share Posted April 30, 2004 I just recently installed a sender in my cell (ran out of gas for the umpteenth time). It was a very simple procedure using a tube type of sender (not a swing arm type). I cut a hole (about 1-3/4") with five 1/8" holes around the main hole for screws. It's kinda neat how they make these. It uses a magnet on a float that slides up and down the inside of the tube. The magnet affects a solid state PCB which runs the length of the tube, thus changing the impedence of the circuit. The gauge then takes one 12vdc+, one ground wire, and a (third) wire going to the sender. The sender receives this wire from the gauge, and then uses a second wire to ground. Quote Link to comment Share on other sites More sharing options...
datsunan Posted May 2, 2004 Share Posted May 2, 2004 Hey Terry how accurate is your gage. Is the sender matched to the stock gage. If so were did you get it? Paul Quote Link to comment Share on other sites More sharing options...
blueovalz Posted May 3, 2004 Share Posted May 3, 2004 I've only had the sender in the cell for a couple of weeks now and have not gone through a tank of gas yet. In testing it appeared to be very accurate, and the sender is matched to an AutoMeter fuel level gauge (Ford type that I previously bought). There are several resistance profiles the manufacturer (RCI) uses on these tube type of senders (Ford, Chevy, and Mopar) that may come close to the map that Datsun used on their gauge. I purchased the sender from Summit. Quote Link to comment Share on other sites More sharing options...
Corzette Posted May 4, 2004 Share Posted May 4, 2004 Terry, Im having some wierd problems with my fuel delivery. Im running an Aluminum 10 Gallon cell with a 1/2 inch braided hose to the pump and out the pump into a PAXTON filer then 1/2 inch all the way to the front through a regulator and then into the carbs. Im running the Holley black. Well when I start it everything is fine and then about 5 minutes the pressure drops drops drops until its on ZERO. I cut off the car and can hear bubbling in the tank, the pump is almost silent etc... Afetr it sits for awhile its goes back to normal. I do have foam in the tank but the air line works fine and the gas comes out ok etc....What in the world could this problem be...i am ready to throw away the whole car....any suggestions????? Terry CorZette Quote Link to comment Share on other sites More sharing options...
blueovalz Posted May 4, 2004 Share Posted May 4, 2004 I've never been good at this kind of thing, but I take a stab at it. To me, it sounds like you've got no air (or perhaps a minuscule amount) coming into the tank (vent is plugged or constricted) to replace the fuel that is being drawn out, thus creating a low pressure in the tank, which would slowly work against your pump until it gets to the point that no fuel can be drawn out any longer. You shut off the pump, and the small amount of air venting into your tank finally allows the pressure inside to get back to normal and thus the pump starts pumping again after a short wait. Just a shot in the dark. I would guess the bubbling sound may be air coming back into your tank back through the fuel line. I'd check to see if this happens with the gas cap off (lots of venting then), or at least do this again and see if a vacuum is in the tank when the pressure starts dropping off or goes to zero. Man, this is a tough question. Quote Link to comment Share on other sites More sharing options...
Corzette Posted May 4, 2004 Share Posted May 4, 2004 Terry, where is your regulator located? Do these things have diaphrams in them rthat are sensitive to heat? All this happens when the car get hot as well... should I take out the foam? Does this matter greatly otherwise? Terry Quote Link to comment Share on other sites More sharing options...
Mikelly Posted May 4, 2004 Share Posted May 4, 2004 This very thing happened to me when I was running an RCI Aluminum cell in the first Z. Scottie GNZ eventually bought the cell, but the cell wasn't the problem, the plumbing/ setup was. You have one of a couple of things happening... The cell is either getting to hot, causing gas to BOIL in the lines, which is causing the cell to expand and contract, or you aren't getting enough air into the system, causing vapor lock. First thing to do is drive the car with the cap off. If the same thing happens, then it isn't air, but heat related. I'd go that route first. However, and truct me here, I almost burned my car to the ground because of this, If you are using an aluminum cell, and your mufflers are running to close, you will get lots of extra heat when there isn't much airflow moving the heat that is radiating from the mufflers. Heat shields will help, but you want them as thick as you can have them made. Mike Kelly 8) Quote Link to comment Share on other sites More sharing options...
Mrtemp Posted May 7, 2004 Share Posted May 7, 2004 I have kind of a dumb question too I have a RCI cell that i havent installed yet either. How do you drill a hole for the sender and not have metal shavings fall inside? Or do you let the fuel filter worry about that? Quote Link to comment Share on other sites More sharing options...
rytherwr Posted May 7, 2004 Share Posted May 7, 2004 I use the same one as Tim. Sending unit is 0-90 ohm. I mounted mine up through the cargo area and centered it because I wanted to run symetrical dual exhaust and I didn't want the sump to hang below the valance. I will make a cover to go over the cell with an access door for refueling to keep everything out of the passenger compartment. Pics here. You can see the fi return line, fuel door and the sending unit all on top. Quote Link to comment Share on other sites More sharing options...
Tim240z Posted May 7, 2004 Share Posted May 7, 2004 How are you venting that cell!! Quote Link to comment Share on other sites More sharing options...
EvilRufusKay Posted May 7, 2004 Author Share Posted May 7, 2004 rytherwr, Lets get a better look at that rollbar!! Did you fab it yourself or is it a Art Morrison kit? Don't worry about hijacking the thread... I started it!! Quote Link to comment Share on other sites More sharing options...
rytherwr Posted May 7, 2004 Share Posted May 7, 2004 Tim, The vent is in the cap...little round button next to the twist thingy. No problems so far. If it becomes a problem, I will re-install 280z stock system and vent through it. Rufus, Main hoop is an Alston and fabbed the rest. Will post some pics when I get home and find them. To keep things straight and stay of the moderator's S---list, I will post under body, kits and paint forum:? Wayne Quote Link to comment Share on other sites More sharing options...
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