Magnafuel problems
07-19-2011, 06:49 PM
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Magnafuel problems Looking for a few opinions on whats going on with my 4301. My current set up has it pulling up out of the truck tank, pre filter, then the pump then post filtered. It has a -10 feed and a -6 return.
Now ive had 3 separate occasions where the truck would lose ALL pressure, and wouldnt get anyback, until it sat around 30 mins. Two of them were after continuous 1 hour driving, another was on a day were it was around 112* outside. After it loses pressure, if you try to flip the key to reprime it, it eventually locks down the pump. Im thinking its overheating, and I probably need to add a fuel cooler, possibly a bigger/ another return.
TIA for any help.
Now ive had 3 separate occasions where the truck would lose ALL pressure, and wouldnt get anyback, until it sat around 30 mins. Two of them were after continuous 1 hour driving, another was on a day were it was around 112* outside. After it loses pressure, if you try to flip the key to reprime it, it eventually locks down the pump. Im thinking its overheating, and I probably need to add a fuel cooler, possibly a bigger/ another return.
TIA for any help.
07-21-2011, 01:47 PM
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Looking for a few opinions on whats going on with my 4301. My current set up has it pulling up out of the truck tank, pre filter, then the pump then post filtered. It has a -10 feed and a -6 return.
Now ive had 3 separate occasions where the truck would lose ALL pressure, and wouldnt get anyback, until it sat around 30 mins. Two of them were after continuous 1 hour driving, another was on a day were it was around 112* outside. After it loses pressure, if you try to flip the key to reprime it, it eventually locks down the pump. Im thinking its overheating, and I probably need to add a fuel cooler, possibly a bigger/ another return.
TIA for any help.
Now ive had 3 separate occasions where the truck would lose ALL pressure, and wouldnt get anyback, until it sat around 30 mins. Two of them were after continuous 1 hour driving, another was on a day were it was around 112* outside. After it loses pressure, if you try to flip the key to reprime it, it eventually locks down the pump. Im thinking its overheating, and I probably need to add a fuel cooler, possibly a bigger/ another return.
TIA for any help.
Also, are u running a dual relay setup? U need to be, along with a minimum of 10 gauge wire to the altenator..
07-21-2011, 06:36 PM
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Hmm, I was "told" by a guy that spoke to magnafuel it was ok to pull it out of the tank from the top. Sounds like yall think that is my problem. Also sounds likej I might be moving to a fuel cell, aka pulling from the bottom sooner than I expected. It uses the factory evap crap.
Yes, it pulls probably around 14inches vertical, then 2 foot thru a prefilter before its at the pump. It make pressure just fine, that rises with boost and everything as expected just fine.
It does have a hot wire kit with IIRC 10 gauge. I am only running a single relay at this point, although I havent had any trouble with it, I may change that as well.
The truck is fixing to be put down for a chassis swap lol, so I'd like to address these issues when that happens in a week or so.
Yes, it pulls probably around 14inches vertical, then 2 foot thru a prefilter before its at the pump. It make pressure just fine, that rises with boost and everything as expected just fine.
It does have a hot wire kit with IIRC 10 gauge. I am only running a single relay at this point, although I havent had any trouble with it, I may change that as well.
The truck is fixing to be put down for a chassis swap lol, so I'd like to address these issues when that happens in a week or so.
07-22-2011, 09:04 AM
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Just to cover everything i would go ahead and put a second relay on it just to be safe, even talking to Nasty Nate he recommended this as well.. The problem with hearing third party information is third party information! Take what we say with a grain of salt but i have been doing this for a long time and have had nothing but countless problem with the way u have it setup on some of my customer's vehicles... As far as a return, i would have atleast a -8 return.. I am running -10 feed and return on mine.. Nasty Nate fuel cell with the Magnafuel MP-4303 Pro Tuner 750 submerged in the tank 
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07-22-2011, 10:52 AM
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You very well may be experiencing what I have. My car drives like a champ when it is cool out. after a while of idleing or driving around town the return line is heating up the fuel due to two pumps running continueoulsy and I am getting pressure drop and experiencing what you are saying. Your best option is to spend 50-100$ on a fuel cooler and place it inline somewhere between your regulator and the return fitting to the tank. I am looking at getting one now.
My buddy with his 767hp vette and aeromotive 1000 is having same issues
My buddy with his 767hp vette and aeromotive 1000 is having same issues
07-22-2011, 12:02 PM
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Problem in bold Red, A1000 is not a continuous duty street pump... U must have there speed pump controller for street use, plus have had countless people burning up the A1000, but that goes with alot of pumps.... And his problem is more than likely 100% do to sucking out of the top of the tank and having a 10 feed with 6 return isnt very promising either, on top of magnafuel recommending the use of a dual relay setup on these pumps!
07-22-2011, 01:18 PM
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So add another relay, I suppose yall are just Y'ing the main power feed between them?
Sump it, or get fuel from the bottom. Maybe add a bigger or another -6 return. And run with it.
Sump it, or get fuel from the bottom. Maybe add a bigger or another -6 return. And run with it.
