Walbro 400LPH intank pump ? Anyone got any info
every time a new fuel pump comes out and a thread is started or when a discussion on fuel pumps start, several people end up banned for short period of time. I can tell you this, the two variables that stay the same from thread to thread are the discussions about the topic, and the presence of a certain vendor.
I could bring up a few situations I am aware of where the term "honest" would certainly come into question, but that is for another thread as the topic at hand is this 400lph Walboro pump.
Yes, I do not currently have one of these pumps in hand, but I do have a spare sending unit that I can use to come up with a solution to make this pump work at a very affordable cost. I will be ordering one of these pumps in the next couple of weeks and will report back with my fitment solution for the community.
I fail to see how I was trying to "battle and run my mouth". I was very civil in my inquiry of a possible fitment solution regarding this pump in the 8/9 fuel pump assembly. The only one attempting to battle and run their mouth was you in your unprofessional and hostile response to mine.
Ofcourse you would offer to make this pump fit in an Evo X without a double pumper option, because there is currently NO market for the Evo X that requires a double pumper setup.
Yes, I realize you hate guys like me. Someone who thinks for themselves and is willing to attempt to help innovate solutions for the community instead surrending all independent thought for you to think for me.
The sock is the filter I was referring to that is "before the pump". The sock is placed before the inlet of the pump, therefore it is a "filter before the pump". Where is the confusion of what I said? I suppose since your an intelligent individual you are just attempting to twist my words into something completely different to create a reason to throw more insults in my direction. I understand the fuel system just fine.
Yes, I do not currently have one of these pumps in hand, but I do have a spare sending unit that I can use to come up with a solution to make this pump work at a very affordable cost. I will be ordering one of these pumps in the next couple of weeks and will report back with my fitment solution for the community.
I fail to see how I was trying to "battle and run my mouth". I was very civil in my inquiry of a possible fitment solution regarding this pump in the 8/9 fuel pump assembly. The only one attempting to battle and run their mouth was you in your unprofessional and hostile response to mine.
Ofcourse you would offer to make this pump fit in an Evo X without a double pumper option, because there is currently NO market for the Evo X that requires a double pumper setup.
Yes, I realize you hate guys like me. Someone who thinks for themselves and is willing to attempt to help innovate solutions for the community instead surrending all independent thought for you to think for me.
The sock is the filter I was referring to that is "before the pump". The sock is placed before the inlet of the pump, therefore it is a "filter before the pump". Where is the confusion of what I said? I suppose since your an intelligent individual you are just attempting to twist my words into something completely different to create a reason to throw more insults in my direction. I understand the fuel system just fine.
How is there no market for a X double pumper?? You have a way to make 650+hp on E85 easier than Buschur Double??
A single 400 pump may allow those on the border of the double pumper to not need the double sure.. no single drop in pump is going to make the Buschur Double extinct at 400lph sorry.. There is a place for a double in many setups..
David,
Don't have the pump or the housing in my hands, like you do, so I'd appreciate your opinion on the following...
How much "longer" is the pump than the "standard" Walbro? If one were to CNC a spacer that would fit between the pump housing and the tank with a couple gaskets above and below, would that give enough space to lower the pump to clear the OEM pump housing limitations and still fit in the tank?
Don't have the pump or the housing in my hands, like you do, so I'd appreciate your opinion on the following...
How much "longer" is the pump than the "standard" Walbro? If one were to CNC a spacer that would fit between the pump housing and the tank with a couple gaskets above and below, would that give enough space to lower the pump to clear the OEM pump housing limitations and still fit in the tank?
CNC's spacer is X amount of dollars, two gaskets are X amount of dollars, then you have a single pump in the tank that flows less than our double pumper AND you have a lid on top of the tank that will no longer fit, so you now have extra noise, water, snow and dirt that comes in through the floor of the car and under you seat/into the interior of the car. That is why I am explaining to ryu that it is not feasible to make the pump work in the EVO8-9.
I never stated that any single drop in pump will replace Buschurs double pumper. You have to agree though that there is a HUGE gap between a single 255 and the double pumper in both performance and cost. If pumps like this can be utilized at a reasonable cost, it would certainly help to bridge the enormous gap between the two in performance and cost.
Yes, I'd say on a Subaru it will work from memory. We also offer double pumpers for the Subaru's and they are fairly popular as well.
I understand I have my share of haters, I don't give a **** to be honest. For those of you that are just not sure about the double pumper, maybe because it sounds complicated or something. It's very easy to install, pre-wired, uses the stock wiring/connector for the primary pump. There is no cutting/drilling involved. The second pump requires a T for the boost source and one wire that has the end installed already to go to the battery and the other end of it to be put on at the fuel pump, that end is already already pre-installed and just needs to be crimped on at the pump. It is EASY.
Fighting the double pumper for E85 or high horsepower is just money and time wasted.
This new Walbro pump at 13.2 volts and 40 psi flows 650 lbs/hr of fuel. If your base pressure if 40 psi it flows: 469 lb/hr at 30 psi of boost and 405 lbs/hr at 40 psi of boost.
The double pumper we build for the EVO8-9 was flowed by DSport magazine assembled, so it's not just a pump sitting in a tank, like most pumps are flow tested. However I do not have apples to apples comparisons as DSport flowed them at 14 volts (which is where an EVO typically runs it's voltage on a good car anyway) and the pressure I have a higher than I just posted above for the single pump, which hurts flow. Anyway, at 14 volts our double pumper at 35 psi of boost will flow 705 lb/hr and at 45 psi of boost will flow 657 lb/hr.
You can't replace that flow with a single pump, end of story.
There is a place for this particular pump in the market though, great pump and we have them, unfortunately it's not feasible to put it in the EVO8-9.
I understand I have my share of haters, I don't give a **** to be honest. For those of you that are just not sure about the double pumper, maybe because it sounds complicated or something. It's very easy to install, pre-wired, uses the stock wiring/connector for the primary pump. There is no cutting/drilling involved. The second pump requires a T for the boost source and one wire that has the end installed already to go to the battery and the other end of it to be put on at the fuel pump, that end is already already pre-installed and just needs to be crimped on at the pump. It is EASY.
Fighting the double pumper for E85 or high horsepower is just money and time wasted.
This new Walbro pump at 13.2 volts and 40 psi flows 650 lbs/hr of fuel. If your base pressure if 40 psi it flows: 469 lb/hr at 30 psi of boost and 405 lbs/hr at 40 psi of boost.
The double pumper we build for the EVO8-9 was flowed by DSport magazine assembled, so it's not just a pump sitting in a tank, like most pumps are flow tested. However I do not have apples to apples comparisons as DSport flowed them at 14 volts (which is where an EVO typically runs it's voltage on a good car anyway) and the pressure I have a higher than I just posted above for the single pump, which hurts flow. Anyway, at 14 volts our double pumper at 35 psi of boost will flow 705 lb/hr and at 45 psi of boost will flow 657 lb/hr.
You can't replace that flow with a single pump, end of story.
There is a place for this particular pump in the market though, great pump and we have them, unfortunately it's not feasible to put it in the EVO8-9.
Ryu, I'm not nut huggin in no way shape or form on Buschur and Awd mike, but the facts are the facts, the Buschur double pumper is the best solution. Cost effectiveness, fitment, reliability,ect. You spend the 500-550$ one time and install and now your good to 1000hp or so! You hack up your fuel pump housing and fab parts for one pump in tank that you are still limited a certain power level. I'm using Buschur double pumper in my new build, and I had it in my last build.
I just went through quite a few pages in the Evo X dyno section. I counted about 6 individuals that could use a double pumper setup. The rest are under 500whp. I realize the Evo world doesn't begin and end on these boards, but if you consider such a small group of individuals "a market" then it's really just a matter of opinion.
I never stated that any single drop in pump will replace Buschurs double pumper. You have to agree though that there is a HUGE gap between a single 255 and the double pumper in both performance and cost. If pumps like this can be utilized at a reasonable cost, it would certainly help to bridge the enormous gap between the two in performance and cost.
I never stated that any single drop in pump will replace Buschurs double pumper. You have to agree though that there is a HUGE gap between a single 255 and the double pumper in both performance and cost. If pumps like this can be utilized at a reasonable cost, it would certainly help to bridge the enormous gap between the two in performance and cost.
Take into consideration the same fact for the EVO8-9 and the gap isn't that big and the cost surely isn't either and I am trying to explain that to you. This pump by itself is a great deal at $159 and it drops in the EVOX.
For comparison:
Standard EVO 8-9 drop in Walbro at 30 psi of boost flows 332 lb/hr. This pump flows 469 lb/hr. Huge increase in flow. Great deal too, I agree. I don't need to explain the problem with fitment again or the cost to make it fit being too close at that point to the double pumper making it not feasible.
Last edited by David Buschur; Sep 27, 2011 at 10:20 AM.
The link below, with real world results, shows a single pump being good for 500whp on 1450cc injectors and still only at 70% injector duty cycle. Since these are real world results, hypothetically speaking, if the 400 pump was able to be used it should be good for over 650whp on E85 if not slightly more.http://www.mellonracing.com/index.ph...d6051bf3e2e5e0
Do you know the flow numbers at certain volt and boost levels of the aeromotive?
If the walbro 400s fit id buy that too. Lol I am just a odd person
Where are you getting your figures on a single Walboro only being good for about 350whp on E85 The link below, with real world results, shows a single pump being good for 500whp on 1450cc injectors and still only at 70% injector duty cycle. Since these are real world results, hypothetically speaking, if the 400 pump was able to be used it should be good for over 650whp on E85 if not slightly more.
http://www.mellonracing.com/index.ph...d6051bf3e2e5e0
The link below, with real world results, shows a single pump being good for 500whp on 1450cc injectors and still only at 70% injector duty cycle. Since these are real world results, hypothetically speaking, if the 400 pump was able to be used it should be good for over 650whp on E85 if not slightly more.http://www.mellonracing.com/index.ph...d6051bf3e2e5e0
Even if you ate correct that Dave is referring to his mustang dyno, the numbers still don't add up. As stated numerous times in the past, Dave's dyno reads 13% lower then a dynojet. If we take 500 and subtract 13%, we are left with 435whp on his mustang dyno. That still doesn't explain where the 350whp figure is coming from. Mind you this is still at 70% idc so there's still a little more room for power as well.