Best fuel pump to run?
Mar 13, 2015, 11:31 AM
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Best fuel pump to run?
Hey guys, quick question, I'm wondering what would be the best fuel pump and injectors to run for my 06 evo. I'm trying to build it to run e85 but still running 91 at the same time considering it is still daily driven. For my setup hoping to reach around or alittle above 500 whp. I also don't plan on keeping the stock turbo, I will be upgrading soon to a ets turbo kit just haven't decided which to go with. I've heard the walbro 255 and 1000 cc injectors are decent but I'm not sure if that will get me to my 500 goal. Any advice at all is greatly appreciated! Thanks again guys!
Mar 13, 2015, 03:30 PM
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Mar 13, 2015, 03:55 PM
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okay 1200cc injectors and is there any other necessary parts I would need to go along with the double pumper? Or can they be installed as easily as an upgraded single pump? Also should I go with wabro 255's or something else?
Mar 14, 2015, 09:35 AM
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Mar 14, 2015, 12:12 PM
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Mar 14, 2015, 12:13 PM
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Exactly that's one of my main concerns is the limit, and same here I'd like to know how to convert to dynojet as well.
Mar 15, 2015, 07:03 PM
#13
If you intend on making this system E85 safe over the long haul, the Walbro 255 doesn't fit into your plans. There is another Walbro in-tank pump, the -267 or 416 lph pump, that is relatively easy to swap. The good news is this pump has the capability to deliver more than enough fuel for the job. The bad news is your skimpy factory wiring cannot deliver enough power to support the demands of the pump if its full capability is to be realized. That will materialize only if the factory wiring is fully upgraded with large power and ground leads.
If this is accomplished, the pump will have the juice to pump enough E85 through your puny fuel feed line to get you 500whp. IF you have enough voltage at the pump to maintain at least 3 bar (44psi) at the fuel rail at full tilt, one may be able to squeeze 500whp out of 1000 lph injectors with sharp tuning if everything else is mechanically efficient. As previously mentioned, 1200s give more headroom.
If you're going to do it, I suggest doing it right the first time. Avoid doing what some folks have done, having undersized/underperforming pumps and trying to band-aid the pressure loss at the rail with oversized injectors. Don't fall into that trap.
Mar 16, 2015, 10:18 AM
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Building a reliable 500whp E85 fuel system means building a system sized to supply 630whp worth of gasoline, and doing it with a pump that is E85 safe.
If you intend on making this system E85 safe over the long haul, the Walbro 255 doesn't fit into your plans. There is another Walbro in-tank pump, the -267 or 416 lph pump, that is relatively easy to swap. The good news is this pump has the capability to deliver more than enough fuel for the job. The bad news is your skimpy factory wiring cannot deliver enough power to support the demands of the pump if its full capability is to be realized. That will materialize only if the factory wiring is fully upgraded with large power and ground leads.
If this is accomplished, the pump will have the juice to pump enough E85 through your puny fuel feed line to get you 500whp. IF you have enough voltage at the pump to maintain at least 3 bar (44psi) at the fuel rail at full tilt, one may be able to squeeze 500whp out of 1000 lph injectors with sharp tuning if everything else is mechanically efficient. As previously mentioned, 1200s give more headroom.
If you're going to do it, I suggest doing it right the first time. Avoid doing what some folks have done, having undersized/underperforming pumps and trying to band-aid the pressure loss at the rail with oversized injectors. Don't fall into that trap.
If you intend on making this system E85 safe over the long haul, the Walbro 255 doesn't fit into your plans. There is another Walbro in-tank pump, the -267 or 416 lph pump, that is relatively easy to swap. The good news is this pump has the capability to deliver more than enough fuel for the job. The bad news is your skimpy factory wiring cannot deliver enough power to support the demands of the pump if its full capability is to be realized. That will materialize only if the factory wiring is fully upgraded with large power and ground leads.
If this is accomplished, the pump will have the juice to pump enough E85 through your puny fuel feed line to get you 500whp. IF you have enough voltage at the pump to maintain at least 3 bar (44psi) at the fuel rail at full tilt, one may be able to squeeze 500whp out of 1000 lph injectors with sharp tuning if everything else is mechanically efficient. As previously mentioned, 1200s give more headroom.
If you're going to do it, I suggest doing it right the first time. Avoid doing what some folks have done, having undersized/underperforming pumps and trying to band-aid the pressure loss at the rail with oversized injectors. Don't fall into that trap.