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my brother has one aem 380 on his Silverado on e85 for about a year now and it is an every day driver in summer. 6.0 with an etr ho s476 turbo ,stock48 cam . and 80# injectors and it will hold good afr's to about 15# boost.
we built a 5.3 truck for a friend with the same pump his holds 11.0 on gas scale at 17 psi boost on e85 before falling off.
I was so impressed I removed my old 044 and bought one for the nova and swapped to e85 this year and I have it tuned at 12 psi and will going to the track soon and push it a little if traction is good.
What AN lines do you guys recommend? I was planning on running Fragola 6000 series PTFE. I got to looking at there hose ID sizes and they are a size small from standard AN sizes.
I was planning on running -10 feed and -8 return. I guess it makes sense to size up one size?....Thoughts?
To max out the 4303 on e85 you need a -12 feed and their "special" aka expensive hogged out ORB -12 supply fitting. My pump would cavitate with the -10 feed. That's what they said when I sent it in for a routine overhaul anyway. -10 post pump is plenty.
I run the -8 supply/return with -12 feed around 900hp on e85 and the pump is maxed at 13v according to magnafuel at these levels at 70psi.
Last edited by Forcefed86; 08-15-2017 at 07:46 AM.
This is just a re-labled 044 with no factory check vavle. The passages through the 044 check valve are tiny. I would imagine that's where the extra 80lph came from.
I removed the OE check valve and replaced it with larger id ones.
This is my setup. Runs on one and second comes in @ 5lbs. (A small inline Carter feeds the surge tank) i run on e85 now regularly with no (pump) issues.
Thinking of adding a third because of e85 and larger injectors.
I would doubt that. I've actually flow tested my dual 044 setup at 60psi and it was just shy of 500lph.
I have no check valves or other nonsense, or restrictions although the flow test was done measuring what came out the -6 return line, almost a worst case scenario.
AEM's claims for their pump do seem far and above what a genuine 044 will do. ( and Bosch only rate the 044 at around 180lph ! although it does flow substantially more than that )
This maybe a stupid question, but I have a single walbro 450 in tank right now with 80lb injs on e85. Im fixing to have the car dyno tuned next week & I'm afraid its gonna be tapped out on the 12lb spring that's in my wg. Would adding one of these aem 380's inline & keeping my walbro 450 in tank as a lift/feed pump be helpful or just wishful thinking?
This maybe a stupid question, but I have a single walbro 450 in tank right now with 80lb injs on e85. Im fixing to have the car dyno tuned next week & I'm afraid its gonna be tapped out on the 12lb spring that's in my wg. Would adding one of these aem 380's inline & keeping my walbro 450 in tank as a lift/feed pump be helpful or just wishful thinking?
I am in a similar boat as you. I would also like to know what a Walbro 450 PLUS a AEM 380 inline would be able to support.
This maybe a stupid question, but I have a single walbro 450 in tank right now with 80lb injs on e85. Im fixing to have the car dyno tuned next week & I'm afraid its gonna be tapped out on the 12lb spring that's in my wg. Would adding one of these aem 380's inline & keeping my walbro 450 in tank as a lift/feed pump be helpful or just wishful thinking?
It may give a slight improvement....really you'd just be better sticking a BAP on it if you need a little more.
I would doubt that. I've actually flow tested my dual 044 setup at 60psi and it was just shy of 500lph.
I have no check valves or other nonsense, or restrictions although the flow test was done measuring what came out the -6 return line, almost a worst case scenario.
AEM's claims for their pump do seem far and above what a genuine 044 will do. ( and Bosch only rate the 044 at around 180lph ! although it does flow substantially more than that )
So based on your test, your results are pretty accurate to Bosch's claims.
You must run both your pumps at the same time, correct?
The Jay Racing guys really pushed the 255 intank and 044 inline setup a few years back on the DSM's.
It will increase volume a little since the pumps aren't working as hard at lower pressures. It's more for boosting pressure than volume though. I believe they made 680ish whp with an intake 255HP and 044 pusher inline. Thats with -6 lines around 75psi. I'm sure with the 450 flowing so much at lower pressures that a 450 intake with a 380 inline would go quite a ways.
So based on your test, your results are pretty accurate to Bosch's claims.
You must run both your pumps at the same time, correct?
Not in the slightest.
Bosch claim 180lph per pump, or thereabouts which is very understating them.. I was seeing approx 250lph per pump. Some sellers claim as much as 330lph per pump although I'm presuming that's open flow, no pressure.
I'm sure each pump individually would flow a little more than what I seen or if tested differently. But as said, I tested worst case, as installed. Not ******* about on a test bench. So it was through all my fuel lines, the rails, the FPR and back down the -6 return line and I tested it right where it would have returned into the main tank.
I'd guess most of the tests you see arent accounting for an as installed scenario. Mine was only at 13.0v too, as the car wasnt running at the time, I ran jump leads from another vehicle to try and get voltage up to a working level for the test but couldnt get it any higher than 13v. Either way I seen that as good, as I know when it is running on my car at 14v it will have a little more flow again than what I tested.
I run both pumps all the time, have done now for over 10 years with zero problems.
05-15-2016, 11:47 PM
