Reply With QuoteMight wanna contact Hotcrusader76, he's the resident carb magician.
Can some one help me plumb my fuel lines?
I am running a holley double pumper model 4150, I have hooked the Holley fuel line up the the carb part# 34-150.
So what I need to know is what size of fuel line to get and what fittings I will need in order to run a fuel line from the fuel pump which is under the motor up to the connection of my Holley fuel line on top of the motor.
I believe the stock hose fittings are 5/8-18 also, but not sure.
Help would greatly be appreciated.
Might wanna contact Hotcrusader76, he's the resident carb magician.
Check this out too TPC racing (http://www.tpcracing.com/news.html)
Thanks for the Help!
Its great that I can talk with someone else other than the local mechanics, and I am not fully convinced they know what they are doing.
Make sure you get Marine Type, USCG approved fuel lines. Automotive fuel hose won't last in the marine environment.
is the Holley fuel line that you hooked up to your carb a -6 or a -8?
A -8 is 1/2"
I would think a -6 line is all you need for a single 4150 holley.
I can help you out with the parts if need be. I'll even put the hose together for you.
I have not hooked up the lines yet. All I put on the carb is the crome dual feed inlet that Holley makes, so from here I need to run fuel line (hose) down to the fuel pump.
I think all I need to buy is the right size fuel line and the hose clamps on the ends, I was wanting to use steel braided lines. SO I am just needing some one to point me in the right diretion.
Well if you know exactly what you need I can hook you up with the parts for a great price. But you have to know what you need.
Need to know the thread size on the pump and fuel line. I would think they are some kind of NPT pipe thread. Could have an inverted flare on the pump. I don't know with out looking at it.
If you have a local speed shop you should take it over there for them to look at. And buy the parts from them as they are the local lifeline in your area for guys who wanna go fast but don't know how to do it.
Anyway, here is a pic of an engine with -8 fuel lines. I only went with -8 because the fuel log was set up the way when it came over to me. I still think a -6 is big enough for a 4150 holley.
http://www.***boat.com/image_center/..._Treat-med.JPG
You will need to run a dash 8 line from your fuel rail to your pump. You said you want to run braided line ($$$). I just completed mine from the tank -8 to my pump straight -8 from my pump -8 90 degree to my fuel separator -8 90 degree out of my fuel separator -8 150 degree to another -8 90 degree to my fuel regulator and finally a -8 to the carb line.
Total cost in parts $400-500.
pm me if you have questions, where are you located?
Originally posted by superdave013
Well if you know exactly what you need I can hook you up with the parts for a great price. But you have to know what you need.
Need to know the thread size on the pump and fuel line. I would think they are some kind of NPT pipe thread. Could have an inverted flare on the pump. I don't know with out looking at it.
If you have a local speed shop you should take it over there for them to look at. And buy the parts from them as they are the local lifeline in your area for guys who wanna go fast but don't know how to do it.
Anyway, here is a pic of an engine with -8 fuel lines. I only went with -8 because the fuel log was set up the way when it came over to me. I still think a -6 is big enough for a 4150 holley.
VERY NICE!
http://www.***boat.com/image_center/..._Treat-med.JPG
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