Dual Walbro Pumps?

[1gDSM4g63]

I only know of Full Blow Motorsports that sell the internal housing for dual Walbro pumps but they're quite expensive. Does anyone know of any other stores that make internal housing for a 1g or do you all custom fab the setup?

Should I consider going to dual Bosch 044 or a single Aeromotive A1000? Is there really a benefit of going to dual pumps?

 

[1992awdlaser]

The only other company I know of that will do it is Buschur. You have to send in your stock sending unit for them to do it. I forget what the price is though.

 

[1gDSM4g63]

I'm looking for a new sending unit, mine is in pretty bad condition with be it 18 yrs. old.

 

[1_2befast]

I just checked out both sites and Buschur charges $400 to modify the stock one and the other one is $550. I think the one from Full Blown looks like a good solution if your stock hanger is bad.One thing to look out for is the Full Blown setup looks to be aluminum which could cause some corrosion issues if you are planning on running E85.

I think the people that are running dual pumps do it because they want the pump(s) in the tank for OEM reliability. Also a lot of guys now are outflowing the Bosch pumps. You could also consider two pumps in series rather than parallel on a used hanger and one outside of the tank to save some money.

One other thing to consider is that it one pump dies you can still get home on one if you need to.

 

[one_bad_7]

theres other options than duals.

my RX7 was around 500 hp and i went from dual walbros to a singel bosche 44 and had no problem. ive heard really godd things about the aeromotive too, but its loud

 

[gixrman]

One thing to look out for is the Full Blown setup looks to be aluminum which could cause some corrosion issues if you are planning on running E85.

I would ask if there piece is anodized then if not you can get it done for cheap. If you think about it the price is'nt that bad considering an external pump is around $300-400.

 

[DGajre777]

You could do an intank Walbro 255HP and an inline Bosch 044.

 

[1_2befast]

Yea you have to be making quite a bit of power to need more than a 255 or 044.

 

[1gDSM4g63]

Yea you have to be making quite a bit of power to need more than a 255 or 044.

Well, my car is setup for a lot of power, I'm shooting for over 700hp and I just need the little things to do that dual pumps and maybe a 4" or 5" FMIC.

 

[gixrman]

You could go with the magnus mechanical pump Magnus Motorsports - Fuel Products

 

[e85_4g63]

I've personally seen 603 awhp on c16 with a rewired single in tank 255 high pressure, that's in the 700 (motor) range...

 

[slowgsr]

I've personally seen 603 awhp on c16 with a rewired single in tank 255 high pressure, that's in the 700 (motor) range...

The difference between 603awhp and over 700awhp is considerable. Ive seen a lot of things too, but i wouldn't try to make past 550 on a single walbro.

I will be running the full blown kit, looks like a solid setup. Great for a street car.

 

[DSM_PWR]

You could do an intank Walbro 255HP and an inline Bosch 044.

Best idea yet..

Why would you spend $400-$550 ona sending unit

 

[dsm-onster]

I've personally seen 603 awhp on c16 with a rewired single in tank 255 high pressure, that's in the 700 (motor) range...

The drive train takes the same amount of power to turn at 200whp as it does at 100000000 horsepower.

 

[Gamble97]

STM now has Dual walbro set ups...with SS fittings...they look bad ass

link?

 

[1gDSM4g63]

I don't do business with STM. Not to bad mouth them, they don't anything about DSM.

As for the dual pump system they sell, they are a vendor for Full Blow Motorsports and like ALWAYS they are pricer then Full Blow Motorsports if you buy from them direct.

 

[94Jettameowpsst]

You could do an intank Walbro 255HP and an inline Bosch 044.

This is easy to do if you want to go this route

I wish i had pics or a reason to take mine out to take some but you could just make your own like i did. Its not too pretty but it works, and its in tank so...

 

[1fastlaser]

I built acouple twin walbro hp in tank setups for my car, and acouple local friends. If you wanted one i could make it, and it would be less expensive, and have 2 walbro hps strapped to it.

 

[Gamble97]

I was thinking about the same thing, got any pics of yours?

 

[1gDSM4g63]

Do you setup it up like turboglenn did and welded another outlet for the other wally?

 

[Lumix315]

I don't do business with STM. Not to bad mouth them, they don't anything about DSM.

I know assuming is not a good idea, most of the time. However, I'm going to go out on a limb here and assume that you meant Emery doesn't know anything about DSM's.

This makes me curious now. I bought one of Emery's fuel pump rewire kits not too long ago. With the statement highlighted in bold, are you incinuating that anything he sells for DSM's, he has insufficient knowledge about, altogether, and therefore had duped me into buying a substandard kit?

Has anyone had poor experiences with him? If, so please share them with me as I need to then take action and go about purchasing a proper fuel pump rewire kit.

Also, sorry for the newb question here but, is rewiring the fuel pump in my 2g awd close to what it is in a 1g awd? All VFAQ had was 1g stuff and then a 2g FWD. I would hate to assume that the two are closely related, only to later find out, after it's been performed, that it's not and watch my car burn to the ground.

Any and all help would be greatly appreciated. Thank you.

 

[kevingst]

It's the same as doing it for the 2g fwd. The wiring is the same, just different how you actually access the fuel pump.

 

[turboglenn]

Did anyone elses tune go way off when changine to dual pumps?/

I've got to fix the 42 - 50 psi of fuel pressure depending on temperature and voltage. My 2 wallys run from re-wire w/ relay at the pump (on outside of tank) and it's rich as h3ll at idle and then unde the first few thousand RPM's it's goten quite a bit leaner, then as soon as things start getting crazy when the wastegate opens the UEGO pegs at 10:1 and I was at 11.8 - 12.4 on a single.

I really want to hear some experiences ( good or bad), nightmares, great HP something, but i can't find much but people dicussing anything but the same 4 questions over and over again.. And no one ever giving a result to being able to fix their high pressures, maybe i need to look in the tech section, but it's time for bed so hopefully some one who has done this and actually turned the wrenches on doing it and can tell me the little bugs, more specifically about this

I'm looking to make 550 MAX on nitrous..only about 400 - 425 on the turbo and E85. I like havingthe knowledge that the fuel volume can be incredibly increased this way, but pressure is out the roof... I have to either go back to one pump. I mean I still have brand new -6 from the hanger to the rail now at least either way I've already started on the single pump setup with larger outlet line and fitting for a single dash 6 on it so i can just run one pump and then have sinlge connecot a foot from the pump hanger that ties into the rest of the line which is very srtaight

I"m not trying to jack your thread, but really look at my link in the bolt on area, i have pics from a build from scratch using the "blue" aeroquip hose in -6 and all aeroquip fittings with a fuel lab filter and am experiencing weird things when driving the car... unfortunately it's cold and icy out (has been for 2 days and will be for about 8 more ) so i can't even really test , let alone try and tune, the car starts moving way too fast really quickly in these conditions.. i hate winter

If you get your's done and in and it's not in this thread, make sure to post up so there'll be more info out there.. I'm giong to start a running post on mine tomorrow sometime, but i want to try one variable and get pics before starting it up.

I guess i'm going to get soem more first hand experience/headaches myself, now i'm being asked to modify/build 3 more of these for friends, 2 that already have -6 from the "tank area" but are just single wally 255's on a stock hangers. When we were talking about it the other day, we all kinda looked at the size (and the pinch in the bend) of the stock line that's built into the hanger and agreed that it has to hurt the flow before the fuel even gets to the good lines. the one honda is going to put in his own -6 from the pump to the rail area, so i'm anxious to see how their tunes are effected...the honda is running CHROME and i've played with that a bit too so at least i'll know what to look at and for

 

[Lumix315]

It's the same as doing it for the 2g fwd. The wiring is the same, just different how you actually access the fuel pump.

Thank you, sir.

 

[Hcaruso4]

buschur does this