Fuel Pump Recommendations for Vortech install
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From: St. Louis
This is a good point. I think sometimes we go for bigger as better. Maybe. But that can also lead to problems; for example if return-side flow cannot handle the fuel pressure spike at idle with a larger fuel pump.
well, i don't think it would cause problems i just don't see the need to recommend overkill on something when he has injectors that don't need it and a block that can't hold it. If he mentioned that he was gonig to build it later down the road then maybe yes but not all people want to drop 20 grand into their car. Some people like some nice 350hp stock block and leave it alone.
More hp potential yes but with only about 10 months of sales and maybe 1% of the amount of users that a walbro has seen there is no way to say that it has been around long enough to test the lifetime durability.
Nothing against DW, their injectors were some of my favorites but this is the first fuel pump they have made.
Aeromotive on the other hand has produced some serious flow externals before so at least they have some experience in the fuel pump game.
Still falls down to double the cost of a fuel pump that he won't even come close to maxing on a stock block. At what point do you draw the line for spending money on stuff that you can't utilize?
Nothing against DW, their injectors were some of my favorites but this is the first fuel pump they have made.
Aeromotive on the other hand has produced some serious flow externals before so at least they have some experience in the fuel pump game.
Still falls down to double the cost of a fuel pump that he won't even come close to maxing on a stock block. At what point do you draw the line for spending money on stuff that you can't utilize?
And to me it's a piece of mind. Simple as a pump working at near max load for it's lifespan vs a pump that for the same needed work is working at a lower load level. What's so hard to grasp about that? It's something I learned here at school as part of manufacturing... over engineer parts for longevity. You never use a part that must work at max capacity to do what you need, you use something slightly better. I mean seriously, we're talking 70$ bucks here. Not the difference between an a1000 and a 255 where one is 3x as much requires an external sump etc... we're talking about two drop in pumps and $70. That's what most people spend on their shift ****, and we're comparing to a 5+ thousand dollar forced induction kit, specifically about the fuel system.
Let me expand on my idea here.
Guy is asking what's a good pump to run.
255 is used a billion times. Will work, and will flow beyond stock block with a boost a pump. But lets say he wants to max out stock block (fair enough, the vortech kit can get right on that edge, and remember for the same whp a vortech needs more fuel from the parasitic loss). That would be right about 470whp no? So lets add a little whp for that parasitic loss, and let's say 500whp. That's about the edge where I would say the 255 stops really flowing/is pretty much maxed out. Why not for $70 buy a pump that won't be on it's edge so you won't ever even have to think about it? It's a smart idea in my book, and that's why I recommended it. He might not even push the stock block, but for the money it's something to consider so he has the option in the future, and STILL has a nice fuel system.
Of all the components of a build, a fuel system can't really get over killed imo.
Last edited by Resmarted; Nov 29, 2011 at 06:18 PM.
when a person has probably 6k max into a stock block setup 70$ is a big deal.
and i ran 507hp on a vortech with my walbro. Well over what a stock block would push. Minus a couple freak of nature blocks on here that have lasted past that.
I ran that "crappy" time proven and tested by thousands of people walbro up to 507hp in my build block vortech for 2 years with no issues. The vast majority of my supra friends and dsm friends run walbro (and dual walbro) for years without any issues.
How many people have run the DW pumps? Has there even been 1000 of them sold? probably not. Based on the fact that a small number of them have been sold and they have been around less than a year how can you say they are durable and reliable? Have people been running them behind the scenes for over a decade and hiding their results? Please enlighten me on the magical data that proves their longevity.
and i ran 507hp on a vortech with my walbro. Well over what a stock block would push. Minus a couple freak of nature blocks on here that have lasted past that.
I ran that "crappy" time proven and tested by thousands of people walbro up to 507hp in my build block vortech for 2 years with no issues. The vast majority of my supra friends and dsm friends run walbro (and dual walbro) for years without any issues.
How many people have run the DW pumps? Has there even been 1000 of them sold? probably not. Based on the fact that a small number of them have been sold and they have been around less than a year how can you say they are durable and reliable? Have people been running them behind the scenes for over a decade and hiding their results? Please enlighten me on the magical data that proves their longevity.
Just thought I would remind you that any drop-in fuel pump in a 350z, whether a walbro or dw or Aeromotive, Is working at 100% of its max capacity for every second that it's powered on. There is no voltage curve or feedback or anything... Just battery power straight to the pump that is pumping every last liter per hour that it can move at the given fuel pressure set by the regulator. 7hp engine or 600hp engine, the fuel pump never knows the difference.
Which I know doesn't address a headroom concern, but it does address the longevity concern.
Which I know doesn't address a headroom concern, but it does address the longevity concern.
It's 170$ vs what 100$? Is that SO much of a difference to you?
And to me it's a piece of mind. Simple as a pump working at near max load for it's lifespan vs a pump that for the same needed work is working at a lower load level. What's so hard to grasp about that? It's something I learned here at school as part of manufacturing... over engineer parts for longevity. You never use a part that must work at max capacity to do what you need, you use something slightly better. I mean seriously, we're talking 70$ bucks here. Not the difference between an a1000 and a 255 where one is 3x as much requires an external sump etc... we're talking about two drop in pumps and $70. That's what most people spend on their shift ****, and we're comparing to a 5+ thousand dollar forced induction kit, specifically about the fuel system.
Let me expand on my idea here.
Guy is asking what's a good pump to run.
255 is used a billion times. Will work, and will flow beyond stock block with a boost a pump. But lets say he wants to max out stock block (fair enough, the vortech kit can get right on that edge, and remember for the same whp a vortech needs more fuel from the parasitic loss). That would be right about 470whp no? So lets add a little whp for that parasitic loss, and let's say 500whp. That's about the edge where I would say the 255 stops really flowing/is pretty much maxed out. Why not for $70 buy a pump that won't be on it's edge so you won't ever even have to think about it? It's a smart idea in my book, and that's why I recommended it. He might not even push the stock block, but for the money it's something to consider so he has the option in the future, and STILL has a nice fuel system.
Of all the components of a build, a fuel system can't really get over killed imo.
And to me it's a piece of mind. Simple as a pump working at near max load for it's lifespan vs a pump that for the same needed work is working at a lower load level. What's so hard to grasp about that? It's something I learned here at school as part of manufacturing... over engineer parts for longevity. You never use a part that must work at max capacity to do what you need, you use something slightly better. I mean seriously, we're talking 70$ bucks here. Not the difference between an a1000 and a 255 where one is 3x as much requires an external sump etc... we're talking about two drop in pumps and $70. That's what most people spend on their shift ****, and we're comparing to a 5+ thousand dollar forced induction kit, specifically about the fuel system.
Let me expand on my idea here.
Guy is asking what's a good pump to run.
255 is used a billion times. Will work, and will flow beyond stock block with a boost a pump. But lets say he wants to max out stock block (fair enough, the vortech kit can get right on that edge, and remember for the same whp a vortech needs more fuel from the parasitic loss). That would be right about 470whp no? So lets add a little whp for that parasitic loss, and let's say 500whp. That's about the edge where I would say the 255 stops really flowing/is pretty much maxed out. Why not for $70 buy a pump that won't be on it's edge so you won't ever even have to think about it? It's a smart idea in my book, and that's why I recommended it. He might not even push the stock block, but for the money it's something to consider so he has the option in the future, and STILL has a nice fuel system.
Of all the components of a build, a fuel system can't really get over killed imo.
Last edited by phunk; Nov 29, 2011 at 07:29 PM.
Just thought I would remind you that any drop-in fuel pump in a 350z, whether a walbro or dw or Aeromotive, Is working at 100% of its max capacity for every second that it's powered on. There is no voltage curve or feedback or anything... Just battery power straight to the pump that is pumping every last liter per hour that it can move at the given fuel pressure set by the regulator. 7hp engine or 600hp engine, the fuel pump never knows the difference.
Which I know doesn't address a headroom concern, but it does address the longevity concern.
Which I know doesn't address a headroom concern, but it does address the longevity concern.
. Maybe I didn't use the best word for it, but you understand the idea I'm trying to get across.This reminds me I still need to wire the relay for my veyron pump... and do a million other things on the car
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