dual walbros, and stock feedline enough?
12-02-2009, 01:02 PM
#1
dual walbros, and stock feedline enough? I know this has been beat to death...but there is so many diffrent views on this. I decided to go with a blower setup on my 10.8:1CR 404. I'm going to shoot for around 700ish to the wheels. I dont want to "cheap" on the fuel system, but I dont want to spend a crazy amount of money for parts I dont "need". I already have a racetronix single pump with hotwire kit. Can I jsut add a regular walbro in there, or will I need to get a racetronix pump? I think they are basically the same...Aslo can I use the stock feed, and use the evap for a return with this HP level? I have seen post where SpeedInc has pushed the stock feed line to upwards of 1000HP. But then I have heard that the limit is 600hp. I will be getting fuel rails for sure, and a regulator. But what regulator do I need? Also will 60lb injectors be enough?
Or should I just man up and wait til I have the funds and run all new -8 feedline, sump the tank and run dual BOSH420's with 80lb injectors?
I will have meth injection either way I go. I know I'm going to get a lot of mixed reviews, but would still like all the feedback I can get...thanks
Or should I just man up and wait til I have the funds and run all new -8 feedline, sump the tank and run dual BOSH420's with 80lb injectors?
I will have meth injection either way I go. I know I'm going to get a lot of mixed reviews, but would still like all the feedback I can get...thanks
12-02-2009, 02:06 PM
#2
I am using Lonnies twin racetronix in tank pumps with the stock feed, regulator, and fuel rails with 60# injectors pushing almost 700 to the wheel. Without meth it looks like I am getting close to running out of injector not fuel as my fuel pressure didn't get below 57psi when it was getting tuned.
It would start at about 58 psi, then when the second pump kicked on it spiked for a moment to almost 70psi then the regulator brought it back down appropriately.
It would start at about 58 psi, then when the second pump kicked on it spiked for a moment to almost 70psi then the regulator brought it back down appropriately.
12-02-2009, 03:17 PM
#3
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We made 820 to the wheels on 97 C5 with the stock GM feed and return lines and Lonnies Double Pumper. We did use after market rails and a boost refrenced regulator.
12-02-2009, 03:22 PM
#4
Ok well I believe I'll be closer to 800 than 700 actually, so I liked to hear that. I can jsut add another pump to mine thats already in there, "T" them together, and run some nice thick wire, relays and a hobb's switch and hopefully good to go? Whats a good regulator to get?
12-02-2009, 03:56 PM
#5
Do not T them togather but Y them togather less restrictive lol. Also You caanot run two pumps on a hot wire kit...Ask me why I know.... But in any case you can fab up your own hot wire kit for the second pump or buy another one. Also have a seprate power source to prevent a dramatic power drop.
12-02-2009, 05:16 PM
#7
I've pushed dual intank pumps and stock feed, rails and regulator to 700hp no problem but that was only dyno time. The entire fuel system was upgraded right after.
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12-02-2009, 08:11 PM
#9
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http://www.summitracing.com/parts/AEI-15118/
i used this on mine. i run 2 255's all the time. i used the factory feed as a return with no issues.
i used this on mine. i run 2 255's all the time. i used the factory feed as a return with no issues.
12-02-2009, 11:00 PM
#13
No, the volume of the -8 line allows the extra flow. Example, you can easily blow through a 3" piece of 3/8" hose. Now try blowing through 10' of 3/8" hose, very hard to do. Increase the last 9' of the hose to 1/2 inch and flow will increase dramatically.
12-03-2009, 08:12 AM
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man i wish i had the same good luck as you guys with the twin intanks, i have a 2000 Z28 and did the twin intanks, but the problom i have is that if i get below 1/2 tank of gas it emptys the bucket and goes lean as ****, so what, im going to do is pull the 2nd pump, and put a in line 255 on the car, and run it fron the bottom of the tank. I have seen this setup support about 1000 to the tire and im well shot of that. So good luck with it i know a lot of guys have great luck with the twins but i did not
12-03-2009, 04:52 PM
#19
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man i wish i had the same good luck as you guys with the twin intanks, i have a 2000 Z28 and did the twin intanks, but the problom i have is that if i get below 1/2 tank of gas it emptys the bucket and goes lean as ****, so what, im going to do is pull the 2nd pump, and put a in line 255 on the car, and run it fron the bottom of the tank. I have seen this setup support about 1000 to the tire and im well shot of that. So good luck with it i know a lot of guys have great luck with the twins but i did not
12-03-2009, 05:08 PM
#20
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When done right the dual intank pumps will support 700rwhp without any other mods. Any more I would add a -8 feed -6 return line and front mounted regulator. We have a few kits to accomplish this complete and ready to go.