S
Dual Walbros?
- Thread starter strictlySupra
- Start date
I think the mk4 has a triple walbro pump hanger you can buy. You would need to greatly increase the whole in the gas tank to make it fit, even two walbros require a little work to slip them in.
S
SLOW7M
Guest
Im trying to do a tripple pump set up on my car
Do you know where you can get the tripple pump hanger for the mk4?
Do you know where you can get the tripple pump hanger for the mk4?
SLOW7M said:
i know wotm.com makes them, and i think sound performance and titan make them too. they are kinda spendy in my opinion though. here is wotms hanger.
http://wotm.com/93sucncfuha3.html
these are proven, but when i come to that bridge, i think ill go with an inline walbro and i already have a walbro intank that will be feeding it
If you need 3 walbros, maybe you should think about getting some higher quality/flow pumps instead 
annoyingrob said:If you need 3 walbros, maybe you should think about getting some higher quality/flow pumps instead
ryan woon ran triple walbros for a long time. pretty much the whole mkiv community runs walbros. if ryan woon trusts walbros with his set-up, i will too!
they run 3 walbros because 3 stock pumps wont fit into the stock fuel tank. if they could fit the 3 stock pumps, theyd probably use those.
twin walbros have been proven to run out around the 900rwhp mark. the higher the fuel pressure, the more these pumps run out of volume. also when being asked to run higher fuel pressures, these pumps are stressed very much and will fail rather quickly. however, on the upshot, walbros are more efficient when it comes to power consumption. a fine stranded 14awg power wire and ground is adequate for a walbro. but asking a stock TT pump to push 500rwhp is going to take a little more than that. a single TT pump needs 30+ amps to operate under boost safely. which means, you cant just pick any aftermarket relay and wire install stock TT pumps.
btw, stock 14awg fuel pump wiring is far better than the equivalently sized aftermarket wire unless you specifically find high quality fine stranded wire. for instance, your typical "primary" wire from your local parts store only has about 23-27 strands in a 14awg cross section. however, the STOCK mkiv and mk3 14awg power and ground wires have 43-47 strands of wire... im sure i dont need to tell you how much better this stock wiring is compared to run-of-the-mill wire!
twin walbros have been proven to run out around the 900rwhp mark. the higher the fuel pressure, the more these pumps run out of volume. also when being asked to run higher fuel pressures, these pumps are stressed very much and will fail rather quickly. however, on the upshot, walbros are more efficient when it comes to power consumption. a fine stranded 14awg power wire and ground is adequate for a walbro. but asking a stock TT pump to push 500rwhp is going to take a little more than that. a single TT pump needs 30+ amps to operate under boost safely. which means, you cant just pick any aftermarket relay and wire install stock TT pumps.
btw, stock 14awg fuel pump wiring is far better than the equivalently sized aftermarket wire unless you specifically find high quality fine stranded wire. for instance, your typical "primary" wire from your local parts store only has about 23-27 strands in a 14awg cross section. however, the STOCK mkiv and mk3 14awg power and ground wires have 43-47 strands of wire... im sure i dont need to tell you how much better this stock wiring is compared to run-of-the-mill wire!
S
SLOW7M
Guest
The thing is i dont wanna run an external with a sump unless all other options fail
annoyingrob said:If you need 3 walbros, maybe you should think about getting some higher quality/flow pumps instead
a few guys have not used the sump and tapped the bottom of the tank.
I was wondering if we do go external because I'm debating the samething myself. Can we just weld an AN fitting on the top of the tank fuel hanger assembly let it run to the bottom of the tank?
more input would be greatly appreciated.
I was wondering if we do go external because I'm debating the samething myself. Can we just weld an AN fitting on the top of the tank fuel hanger assembly let it run to the bottom of the tank?
more input would be greatly appreciated.
S
SLOW7M
Guest
well pay 60 for a sump and another 60 for someone to weld it in... not like you're spending 500 on a sump alone.
there is nothing wrong with daves and the 2 others setup as far as tapping the bottom of the tank...
there is nothing wrong with daves and the 2 others setup as far as tapping the bottom of the tank...
S
SLOW7M
Guest
First off im making a pump hanger i think i can weld in my own sump which i have done but i dont want to run an external pump if my tripple intak set up fail i will run my sumped tank with an aermotive elemniator but that is a last resort
you guys with bottom-feed pickups for your external pumps, do you use the stock fuel return line or what?
the only thing im afraid of is water collecting at the bottom of the tank if the car sits for an extended period of time. what would you do about that? turn the pump on and let it pump out any water, cycle it and hope it dumps back into the tank and breaks up before trying to crank the motor?
anyone installed a water/fuel separator from a diesel? my truck has one of these, maybe that would be useful for bottom-feed setups?
the only thing im afraid of is water collecting at the bottom of the tank if the car sits for an extended period of time. what would you do about that? turn the pump on and let it pump out any water, cycle it and hope it dumps back into the tank and breaks up before trying to crank the motor?
anyone installed a water/fuel separator from a diesel? my truck has one of these, maybe that would be useful for bottom-feed setups?
S
SLOW7M
Guest
flubyux2 said:
ive never had a problem with water in my tank. but even if the car doesnt get driven, it still gets started regularly.
i have heard of people using sta-bil if they know its going to sit for a while. i dont have an personal experience w/ the stuff.