The title is pretty self explanatory, and i have not been able to get a straight answer, so i come to you guys.............

how much power can be made at the wheels with an aeromotive fuel pump??

TIA

 

Cort (uglyasscivic) is making a little over 800whp on gas on *his. I can't really tell you from my experience because we only use Magnaflow and Weldon when we're shooting for 600whp+. I'd be willing to bet that the Aeromotive is dropping a little pressure up there though.

EDIT: ooops, I'm retarded... minus that first "his" out since I obviously wasn't paying close enough attention to what pump Cort had! haha! Sorry


Modified by Kataku2K3 at 9:37 PM 4/25/2005

 

Is Cort really using gas? In one of his posts he said to PM him to find out what fuel he was using.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Kataku2K3 &raquo;</TD></TR><TR><TD CLASS="quote">Cort (uglyasscivic) is making a little over 800whp on gas with his.</TD></TR></TABLE>

 

It's still on gas, not Eth or Meth yet! Hope that was okay to give that much info out Cort! I don't know about Cort again for sure but he did run an intank for a while. I do have a little input on intanks if you care to hear. A single Walbro or BBK 255lph has gotten us to ~250-275whp on the dyno before we start to see a drop in pressure (and a bad drop at that, ~10psi fluctuations). One of those paired with an MSD 125 inline has gotten us to ~425whp before we won't go any farther. The twin Bosch pump setup we had on Will's Rex last season was working at ~650-700whp but was starting to drop up top. Bosch has been getting a lot of complaints lately and we probably won't be using them anymore. We however have never had any problems with the Magnaflow Pro Star EFI 600s. Even at ~750whp+ with the fuel pressure at 85-90psi under boost there's very little if any deviation. Okay that was probably way too much unneeded info but whatever. Time for class...

EDITED: Didn't like some of my wording


Modified by Kataku2K3 at 11:08 AM 4/26/2005

 

I am currantly using 2 holly 285 intank pumps in my setup with each pump on its own relay. It stays nice and quite. (not loud at all). All you need to do to put an additional pump intank is to build a new cap for the fuel tank. I have ran my two pumps into a y adapter and then have ran 10 an to the rail. I also had to upgrade the return line because with the stock return line in it, couldn't get less than 85 psi of pressure.(with an aem fuel pressure regulator and the orfices out of it) Fuel pressure doesn't drop off on me and we are making a lot of horspower with this setup. As for the areomotive pump, for your honda it should support 800 to 900 horspower, granted that your lines are big and there are no restrictions. Just as a note, a friend of mine has this pump in a twin turbocharged big block camero with sc61's and around 10 psi. He was only able to make 750 hp with that pump before fuel pressure began to drop..

 

Jasen Listen to him, he knows his ****!

 

Yes, thanx keep it coming!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 98JDM_Type_R &raquo;</TD></TR><TR><TD CLASS="quote">Is Cort really using gas? In one of his posts he said to PM him to find out what fuel he was using.

</TD></TR></TABLE>

lol, he meant ask him what kind of Gasoline he was running, not if it was Gas or alky. I'm pretty sure you're not allowed to run meth in T4 either.

 

I run the Sx fuel pump. It is rated to 1500hp. Im not sure how that compares to the A1000.

http://www.capa.com.au/fuel_pumps.htm

 

don't listen to cort, here is actually using one walbro 255 (intank) with 0 gauge wire powering it. I have seen it. I have no idea how he makes the power with this setup but he does. Lol J/K cort

 

Okay, yea I'm a dumbass, someone shoot me please! Jasen, 0 AWG wire has to be bigger than the pump itself, huh?

 

good info!

 

i got some interesting info i'll post when i get home to my apartment regarding this issue.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SEFIxCivic &raquo;</TD></TR><TR><TD CLASS="quote">i got some interesting info i'll post when i get home to my apartment regarding this issue.</TD></TR></TABLE>

Fill us in

 

Here's my datalog @ 600 whp on a walboro 255... i know people have made more hp on this pump, so i attribute some of this due to my slightly kinked stock line that occured from bending.

map is 289 kpa which is slightly under 29 psi

a/f .841 lambda which is approx 12.5

duty cycle is 74%

The red flag here is that my injectors are 1600cc!!! no way 1600cc's are at 74% for 600 whp. plus the numbers on my fuel table in that area are way pumped up compared to everything else. the injectors are trying to compensate for my lack of flow from my fuel pump.

 

What was your base fuel pressure?

 

I can relate. I was having serious fuel pressure drop issues with my walbro 255hp and my 95# injectors last year. Running low boost (10-12 psi) the pump couldn't keep up. I have modified the tank pump door for -6 feed/return line, not sure that is why or not. Showed that I was at like 80+% duty cycles and I couldnt believe it. To remedy the problem I ran 8awg wire off a 40amp relay and it seems to help slightly, but sumping with a big inline is the answer.
Cort, its nice to hear you are running the SX. I will be using one if we ever get it off of our other project shop car. Ive heard a couple bad things about them a couple years back but it was probably due to them not being setup properly.

 

SEFIxCivic, I'm not doubting how far anyone has gone by any means, it's just from my experience with intanks, that is what I've observed. I know you weren't directing that at me or anything but I was just curious, do you know how your fuel pressure was up there? In the past, we could have made more power (I don't know how much) but with the drop in pressure under boost we didn't want to go any farther. It must be nice having a better Motec box on your street car than most HR/Pro4 guys have, huh!!! haha

93LSivic, you decide to ditch the twin intank pumps? I know you were working on it for a bit. Oh well, if you are, you're probably better off with a single external and a sump. Just no more slamming the **** out of the car and hitting speed bumps fast. lol!

 

I just bought the complete SX fuel setup. Is there alternative to sumping a tank?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Turbocivic94 &raquo;</TD></TR><TR><TD CLASS="quote">I just bought the complete SX fuel setup. Is there alternative to sumping a tank?</TD></TR></TABLE>

http://www.turbomustangs.com/forums

Go on there, talk to Brent, he's the carb guru. His street car just made nearly 1200 RWHP, he uses a Magnafuel pump with a stock-type pickup. I think that would be a great place to start.

 

i dont know what my pressure was running up there. my base psi is 42 with the vacuum connected.

im running a heavier gauge wire to the fuel pump as well as a seperate relay. at 550 or so hp, the a/f is spot on and the duty cycle doesn't look way off nor are my fuel maps.

i done a couple cars with the intank making 500, both low mid and high and no problems maintaining the a/f. just on my particular car over 600 it looked weird.

now with my sx pump the a/f with the same tune is so rich its off the scale.



everyone keeps telling me that the sx pump is junk, but i bought it ages ago, and i needed more fuel so i threw it in.

as for how i set it up, im running it inline with my walboro 255. personally this has me pretty spooked also, im probably going to get a fuel pressure transducer and run it to the ecu, and have it turn off the ignition if the fuel pressure falls.

im running a -10 from the sx to the rail. -6 from the return. and -6 to feed the inline sx.

also, i do love my motec


Modified by SEFIxCivic at 10:57 PM 4/26/2005

 

I guess if you can hold your A:F, you're "okay". Me personally, I'd be a bit worried if pressure was dropping up top still but that's not a big deal. b16sedan, because I don't know I thought I'd ask. What is the factory Mustang pickup like? Bottom feed? Just curious again because we've never had good luck raising the MagnaFlow pumps up much higher than the sump. They do an excellent job of pushing fuel but they're not too hot when it comes to sucking. On our Hondas, any higher than say 4 inches plus above the level of the sump and those pumps have a hard time getting fuel. Here are a couple pics of a friend's SFWD hatch that Scott and I just finished the other day. We sumped the tank with an EFI 600 on the back like usual, but you can see how low the pump has to sit.

 

i think the way you're doing it is right. if it were entirely up to me i'd have all the cars i tune with the proper fuel pump when making big horsepower. but you know how much work and money it is to do a proper fuel system. but on a similar note its even more money and work when the motor runs lean from not enough fuel. with the 255's working to an extent, its hard to convince someone different when the price difference is so great.

 

True that, I totally know what you're saying. It's just when we're building the cars, especially for close friends, we want it done right. Even if it's a fuel system that cost $2K! It is, as you said, hard to convince others to sump their tank, run an external pump, and spend lots of money when people have made good power with an intank alone...

 

nice pics. I'm guessing this car doesn't see any street time or very little??? The pump being that low would make me nervous...

You guys are making me worry about supplying the proper fuel for my new setup. My goal is 600-650whp, and I was hoping I wouldn't have to step up to an external pump.