Stock Fuel feed lines limits??
What pump... I am going with a 450 Walbro soon... With a boost of pump.. Going to run an f1a on my 383...
Kenny bell is running 1000 hp with stock type pumps and lines, with the boost of pump, which works off a hobbs switch.
I do have 10 an line, and 8 an line from an old race car.. But don't know if that is necessary...
Are you running a return?
I am not sure what I should do...
Kenny bell is running 1000 hp with stock type pumps and lines, with the boost of pump, which works off a hobbs switch.
I do have 10 an line, and 8 an line from an old race car.. But don't know if that is necessary...
Are you running a return?
I am not sure what I should do...
I'm currently in the process of installing aftermarket fuel rails and regulator (after the rails) on the stock truck intake with connections to the factory 3/8" feed and 5/16" return. 2 Walbro 450 in tank. I was having serious issues with the stock rails and regulator with these fuel pumps, so I'm hoping these changes will solve the pressure issues. More than anything I was being lazy by not running the -8 line all the way back to the fuel tank, however, I also wanted to try and save $$$ by not having to buy the extra line, fittings, and fuel filter. Trying to get 800 rwhp on ethanol with good fuel pressure.
Stock Fuel feed lines limits?? A friends car I tuned is going 9 teens at 153mph at 3670lbs on stock lines/reg/filter with twin 255s and 127lb injectors on E85. Math says well over 800rwhp. We're at the limit though, running out of fuel at 20psi boost.
Launching!
Joined: Oct 2003
Posts: 267
Likes: 14
From: Chicago
http://www.kennebell.net/KBWebsite/C...elpumptech.pdf
This, the boost of pump, is an awesome simple device. Read up on the tech...
Interesting actually.
This, the boost of pump, is an awesome simple device. Read up on the tech...
Interesting actually.
Launching!
Joined: Oct 2003
Posts: 267
Likes: 14
From: Chicago
Really one 450 pump, on 15 to 20 volts, would make like 750 lph.. With the boost of pump... I think I am going this route...
Kenny Bell, has been making some big power on stock type pumps, I fully trust him, he is not new to this game...
Kenny Bell, has been making some big power on stock type pumps, I fully trust him, he is not new to this game...
Last edited by stage274; Jun 19, 2015 at 11:40 AM.
Restricted User
Joined: Mar 2014
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From: Ohio
Also, the 450 tops out around 660 lph before it starts to have issues. Anything over 18 or so volts and they get REALLY hot.
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I ran a Kenne Belle bap with success but sold it recently after I bought a proper fuel system setup.
We were running out of duty cycle and fuel pressure was dropping with 80lbs'/twin walbro 255's/stock rails, lines, regulator @ 20psi on a PT88/5.3 through the auto on 110 octane. Upgrading to a Nasty Performance Stage 3 if it ever ships 
Launching!
Joined: Oct 2003
Posts: 267
Likes: 14
From: Chicago
Joe, good point!!
Only reason, I am going this route, is I have a boost a spark from my old GN. Doing research, it turns out, it is the same unit, as a boost a pump.
The boost of spark/pump, was expensive come to think about it. And you are right Joe, it would make more sense to go with dual pumps.
I am actually amazed, what stock type pumps can produce with 17 to 20 volts going to them. I do have a 10 AN line, and an 8 AN line, with fittings, from my old race car. But after really reading the tech, on the boost of pump, they sold me on it, that I do not have to do all that plumbing. At least not right away at least. One wire hook up, for the boost of pump.
I might just go with a dual pump set up, 340 L/h pumps, with the boost a pump, hooked up. Even if one pump fails, it will be enough, if the Boost of pump, is hooked up.
If I go with dual pumps, do I need to get rid of the stock canister? I dont want to get rid of the canister. Because it ensures, you have fuel. But another problem I read about, is the pump, actually empties the canister. Since it pumps so much. Did anyone here, run into that problem?
I really dont want anymore problems.
Only reason, I am going this route, is I have a boost a spark from my old GN. Doing research, it turns out, it is the same unit, as a boost a pump.
The boost of spark/pump, was expensive come to think about it. And you are right Joe, it would make more sense to go with dual pumps.
I am actually amazed, what stock type pumps can produce with 17 to 20 volts going to them. I do have a 10 AN line, and an 8 AN line, with fittings, from my old race car. But after really reading the tech, on the boost of pump, they sold me on it, that I do not have to do all that plumbing. At least not right away at least. One wire hook up, for the boost of pump.
I might just go with a dual pump set up, 340 L/h pumps, with the boost a pump, hooked up. Even if one pump fails, it will be enough, if the Boost of pump, is hooked up.
If I go with dual pumps, do I need to get rid of the stock canister? I dont want to get rid of the canister. Because it ensures, you have fuel. But another problem I read about, is the pump, actually empties the canister. Since it pumps so much. Did anyone here, run into that problem?
I really dont want anymore problems.