Fuel Pump Upgrade
05-17-2016, 05:57 PM
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Fuel Pump Upgrade Hey guys I'm looking to upgrade my fuel pump. I have the huron speed v2 kit and I plan to get 750whp out of it in the future so I want to be ready for it. I'm looking at getting the walbro 450, but I'm not sure the stock fuel pressure regulator can handle it. Anyone know if it can? Anyone have any other recommendations on fuel pumps for my power goals. I'm working on a budget so the 450 seems like a good idea. Also would it be better to do 255s? I'm kind of hesitant on because I figure it'll cost more and might more complicated, but haven't looked into it mainly because I was set on just one. Thanks
05-17-2016, 07:19 PM
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Iv been gathering info to upgrade to around 800 whp on a f1a and from what iv found is the stock regulator won't handle the pressure you will need a boost referenced fpr. As far as the 450 goes iv seen people make that power on one running e85 and gas but the e85 was pushing it. Also if you stick to the 450 run some big wires it's power hungry as a ****. What's else have you done to the fuel system
Last edited by mike431987; 05-17-2016 at 07:31 PM.
05-17-2016, 09:12 PM
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if I get a boost refrenced fpr would I need to run a return line setup? Would I need to change the lines for the fpr? What all is actually needed to get the 450 installed? I was planning on running the racetronix hot wire kit to supply the pump more power as thats what I see other doing. All I have done so far is order deka 80lb injectors.
Last edited by SSV8; 05-17-2016 at 10:08 PM.
05-18-2016, 02:39 AM
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https://ls1tech.com/forums/tags/walbro.html
Checks some of those threads out theres info on running the walbro even twins. Me personally I'm upgrading my entire system and buying a lonnies twin pump. It cost a little more but it will only have to be upgraded this once and im done. And it's all plug and play so no guesswork.
Checks some of those threads out theres info on running the walbro even twins. Me personally I'm upgrading my entire system and buying a lonnies twin pump. It cost a little more but it will only have to be upgraded this once and im done. And it's all plug and play so no guesswork.
05-19-2016, 02:03 AM
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that link helped a lot! Now I am leaning towards 2 walbro 255's since my end goal is only 700 whp. Now to make this setup work I need the 2 pumps, the installation kit, boost referenced fuel pressure regulator and return lines which I will probably use the evap line. What else is required for this install? And can you explain how the return line work? or what I will need. Can't seem to find a thread on a full return line install. Can I run the return line to the stock rails? does the return line go to the rails or does the fpr go to the rails and the return line goes to fpr?