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Old 12-04-2012   #281
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Re: Mark's 1G Winter Projects

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Originally Posted by JET View Post
Are you using anything to increase the voltage like a boost-a-pump?
Nope, I'm not sure if it would help on a fuel lab pump since they are brushless DC, they spin at a set RPM by design.

Quote:
Originally Posted by scheides View Post
I was super impressed with Lomker's Weldon setup, that's the way to go I think.

You sure it's not a slosh/tank starvation thing? I know I have that problem in my X....
I'll take a look at his setup in the build thread. It's not slosh, I down sized the tank to only hold around 5 gallons and I run it close to full for just that reason.
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Originally Posted by turbotalon1g View Post
Sumped cell, so shouldn't be a problem there unless its straight up out of fuel.


Straight out of fuel, I looked at my logs and I have fuel pressure drop. This may also be why I fried a 2150 injector eariler this year.

The graph is 3rd gear, the last trace is the fuel pressure log, its super noisy. Look at the trend of the data, decreasing with RPM. Also ignore the scaling on the log, I downloaded this log with a fresh revision of AEM Pro and I didn't set my preferred settings as these are default.
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Old 12-04-2012   #282
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Re: Mark's 1G Winter Projects

What about dual rails each with its own pump?
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Old 12-04-2012   #283
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Re: Mark's 1G Winter Projects

OMGZ 2 secs and 3rd is done. :drool:

I'll ask around/check out link too see what the big dogs are doing over there.

Looks like magnapump 4303 is popular or twin 044s
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Old 12-04-2012   #284
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Re: Mark's 1G Winter Projects

Is the pump supposed to be able to support the fuel you are using or is it a bad pump? Fuel Lab products don't have the best track record from what I have seen on the dyno the last few years.
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Old 12-04-2012   #285
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Re: Mark's 1G Winter Projects

You are running the fuel lab 42402? They rate the flow at 13.5v (they say it will support 1200hp @ 100psi), if it didn't matter the voltage you would think they would rate the flow at 12-16v. That is the operating range they give for the pump. I would give them a call, it might save a ton of time and hassle instead of trying to put a different pump in.
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Old 12-04-2012   #286
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Re: Mark's 1G Winter Projects

Mark you is famous!


http://www.youtube.com/watch?v=U3_oWZSub1k&&hd=1

EDIT: Tachyon, and Jrohner too!
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Old 12-04-2012   #287
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Re: Mark's 1G Winter Projects

Quote:
Originally Posted by turbotalon1g View Post
OMGZ 2 secs and 3rd is done. :drool:

I'll ask around/check out link too see what the big dogs are doing over there.

Looks like magnapump 4303 is popular or twin 044s
The 4303 has very very similar performance to the 42402. My Fuelab was benched at 154 GPH @ 85psi and the tech from Magnafuel said that at 80-90 PSI to expect 150 GPH from the 4303. The 4303 dives off the efficiency spectrum at 65psi. The Weldon is at over 200GPH at 80 PSI.

Quote:
Originally Posted by Shane@DBPerformance View Post
Is the pump supposed to be able to support the fuel you are using or is it a bad pump? Fuel Lab products don't have the best track record from what I have seen on the dyno the last few years.
This year I switched cams to the S3’s and some other little stuff and I could never get control of my AFR’s. More fuel for more power? The pump is not bad, it has worked fine until this last winter upgrades.

They are very finicky when you try to control them between high and low. I had one go bad when I was using the AEM to control it. So now I just flip a toggle switch to run it at max speed before a WOT run. They are brushless DC, but I’m assuming they implemented a brushless motor topology that has no position detection and the downfall is they can stall out during speed transitions, drawing lots of current. You need to fuse them at the exact value recommended by fuel lab for protect them in this event.

Have you seen anyone use Fuelab’s electronic FPR to control them? That is what fuelab recommended to me. Run a second large pump and have the FPR regulate the speed. It is an option that I’m considering. If I get crazy I could switch to M3 for fuel and have enough capacity.

Quote:
Originally Posted by JET View Post
You are running the fuel lab 42402? They rate the flow at 13.5v (they say it will support 1200hp @ 100psi), if it didn't matter the voltage you would think they would rate the flow at 12-16v. That is the operating range they give for the pump. I would give them a call, it might save a ton of time and hassle instead of trying to put a different pump in.

I'm running E98, 30-35% more fuel required? I just verified with Fuelab, no BAP. The speed of the motor is set and controlled via a magnetic field changing, so the RPM/torque will not increase with a BAP. The 4303/weldon 4345a will work with a BAP. Too much stuff to consider right now! Lot’s of pros and cons to consider.
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Old 12-04-2012   #288
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Re: Mark's 1G Winter Projects

No quote and reply about my idea? Q___Q
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Old 12-04-2012   #289
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Re: Mark's 1G Winter Projects

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No quote and reply about my idea? Q___Q
Yep possible, but I would need a separate feed line, FPR, and return line. It would be like running 2 completely different systems. Lots of options. I could even cheap out and add an inline Walbro to get me over to the positive side of the fuel curve.

Also that old transmission has a chowed 4th at a minimum. It was an Evo 1-4 with a TRE spool and VCE clamp. At a minimum it needs 550.00 in parts from Jacks to fix it. I wouldn't refuse any reasonable offer.
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Old 12-04-2012   #290
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Re: Mark's 1G Winter Projects

If you can throw an inline wally, that gets my vote.
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Old 12-04-2012   #291
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Re: Mark's 1G Winter Projects

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If you can throw an inline wally, that gets my vote.
Huh? Thats a joke right.
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Old 12-04-2012   #292
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Re: Mark's 1G Winter Projects

I think an electric pump should be able to get you where you need to be but.

http://magnusmotorsports.com/product...el-pump-drive/

They make it fairly easy now.
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Old 12-04-2012   #293
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Re: Mark's 1G Winter Projects

I liked the video even though I was "Out classed"
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Old 12-04-2012   #294
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Re: Mark's 1G Winter Projects

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Huh? Thats a joke right.
Explain y it should be please
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Old 12-04-2012   #295
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Re: Mark's 1G Winter Projects

I have run a aeromotive Eliminator fuel pump for the last 2 years on e98 and no voltage controller. The end of this year my car made 50psi of boost and the a/f was right at 11.5-11.8:1 and I only have 1 set of FIC 2150's. My base fuel pressure is set to 45psi.

I have tested fuel pressure to over 100psi on just battery voltage and it pumps at least 3.5gpm at 0psi draining the fuel cell.

If I need more fuel pump I can hit it with a BAP and be fine.

I know MAP has tested the Eliminator/2150 combo to over 1000awhp with no BAP.
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Old 12-05-2012   #296
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Re: Mark's 1G Winter Projects

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Explain y it should be please
Any inline Wally would probably be a restriction at this level.
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Old 12-05-2012   #297
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Re: Mark's 1G Winter Projects

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Originally Posted by munchgsx View Post
I think an electric pump should be able to get you where you need to be but.

http://magnusmotorsports.com/product...el-pump-drive/

They make it fairly easy now.
x2, call Marco, he'll have your CC number is less than 3 minutes.
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Old 12-06-2012   #298
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Re: Mark's 1G Winter Projects

I ran one of those pumps and they suck to prime. If I remember correctly, Marco use to run compressed air into his fuel cell to push the fuel to the pump to get his car started. One hell of a pump when the car was running, but a pain in the ass to get it started every time. Unless you could find some sort of fuel check valve that wont be restrictive.

Also, when running a mechanical fuel pump, NHRA rules state you have to have a manual fuel shut off connected to your battery disconnect outside of the vehicle in case of crash/fire. Hassle in my eyes.
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Old 12-06-2012   #299
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Re: Mark's 1G Winter Projects

Is the fuel cell vented?

If not I'd bet that is why it drops!

If it is vented maybe the vent isn't big enough.

For what it's worth. I ran e85 and ran twin walbros with a boost a pump on them has the stock vent on a stock tank. Made 830 @DB never miss fired or showed it was out of fuel. Went to the track first pass I messed 3rd gear. So te next pass I get in 4th and the fucker is miss firing and showing its lean in the wide band so I lifted. So I pulled the log showed it ran the same boat we ran on the dyno so I turned it down 3 psi and did the same thin once I got in 4th. So then i turned it down again and changed plugs and the same result.

When I started I had about 5/8's of a tank and after the passes it was about 1/4 so I figured I'd add some fuel. Cracked the cap loose and I could hear it pulling air into the tank from just cracking the gas cap and it all made seance. the tank was being shrunk or collapsing or why ever he proper word is.

Left tHe gas cap off and boom no more missing and running the AFR it did on the dyno.
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Old 12-07-2012   #300
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Re: Mark's 1G Winter Projects

Thanks for everyone’s feedback, work has been crazy lately. My fuel cell vent is an an8 roll over valve, so a big vent. John I know you and MAP have had good luck with the eliminator pump.

These are my options listed in order of a preferred solution:

1. Weldon 4345A
2. BAP with an eliminator or 4303 Magnafuel
3. Fuel lab additional pump with their electronic regulator
4 .Mechanical pump
5. Bosch 44 or 255 wally in parallel

I’m such a nerd If you knew how much thought and effort I’m putting into this.
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