BluePrint 347 With EFI - Any Tips Before I Install My Fuel Lines?

[Papa]

I'm ready to run my fuel lines and just want to know if there are any changes from what's in the FFR manual that I should be aware of. Should I skip the giant fuel filter since the engine ships with a filter. Where should I plan to install the provided filter, external fuel pump, computer? The fuel system provided is similar to these (less that hand-held programmer and no hoses & fittings with the fuel pump):

EFI:

http://www.fuelairspark.com/fas/ez-e...-base-kithtml/

Fuel Pump:

http://www.fuelairspark.com/fas/mast...-fittingshtml/


Thanks,
Dave

[CraigS]

I would put the pump and filter near the tank. Depending on rear suspension type there is usually some room on the inside surface of the longitudinal square tube over the axle on the right side.

[weendoggy]

Make sure your external efi pump will "suck" fuel from the tank if you exit from the top. They are usually made to push fuel.

[sdgxxr]

I also went with the BP 347 w/ EFI and fired her up last weekend. Success!
I decided to opt out of using the FF large filter and mounted the FAST filter and pump in its place. Went with AN fittings to the hard line under the car to AN flex in the engine bay to the rail. So far so good.

[Papa]

Thanks for the tips everyone. I think I'll run the hard lines, but leave the filter out until I get my engine and can determine the best location for the pump and filter. I ordered a Holley 162-153 2" billet filter with mounting rings. Is there any harm running a pre and post pump filter or is that just overkill?

[GFX2043mtu]

Make sure you 100% know if you can mount the pump above or below the fuel tank. If you get this wrong you will burn through fuel pumps. The good thing is reguardless of where it needs to go mounting it is easy with the plastic gas tank cover. May I ask why you went with a external pump set up for a 347 and not a in tank 225 or 300+ liter/hr internal pump? In tank pumps stay cooler and tend to last longer. Also you should run pre and post pump filters. Post pump filter for efi motors should be 10 micron to prevent injector plugging. Pre pump filters should be 40-100 micron depending on the pump type.

[Papa]

Make sure you 100% know if you can mount the pump above or below the fuel tank. If you get this wrong you will burn through fuel pumps. The good thing is reguardless of where it needs to go mounting it is easy with the plastic gas tank cover. May I ask why you went with a external pump set up for a 347 and not a in tank 225 or 300+ liter/hr internal pump? In tank pumps stay cooler and tend to last longer. Also you should run pre and post pump filters. Post pump filter for efi motors should be 10 micron to prevent injector plugging. Pre pump filters should be 40-100 micron depending on the pump type.

BluePrint ships an external pump with their Factory Five turn-key packages. I suspect this is done to minimize modifications to the FF kit. The Holley filter I have is a 100 micron filter that flows up to 175 gph. This should make a good pre-filter. I'll need to figure out where to install the pump still.

This is all new ground for me, so I will have to keep researching before installing all the fuel system components.

[GFX2043mtu]

Don't over think this to much. You can mount the pump on the plastic cover of the fuel tank along with the pump inlet filter. you can also mount the outlet filter right after the pump or where ever else you choose. Make sure to mount the pump so that it is as low as possible but not to to low that it sticks past the bottom of the tank. This will prevent possible issues with the pump due to the fuel level. You can then run the fuel line where ever you want. The pictures show how I ran my fuel lines. I felt this will provide the most protection as I didn't want them to where they could possibly get hit and cause major issues. Fuel lines 1.jpgfuel lines 2.jpg. If I where you I would actually ditch the external pump they sent with the motor and use the factory five fuel tank and sending unit and put a Walbro 225 liter/hr pump in there. Walbro makes drop in pumps for about $75 that include the prefilter so you can send yours back and refund money will cover most if not all of the cost of the Walbro pump kit. For a fuel injections application this pump is good to 500 hp as long as the fuel lines will support the flow. I am running dual Walbro 225 pumps with a -10 an feed line and I plan on pushing about 1000hp in my carb application. The only reason I say this is because in tank pumps always last longer because they always run cooler, that's why all factory cars use in tank pumps. It will also clean up your fuel system install and not cost much if any any thing more then you have spent now to do it.

[Papa]

Don't over think this to much. You can mount the pump on the plastic cover of the fuel tank along with the pump inlet filter. you can also mount the outlet filter right after the pump or where ever else you choose. Make sure to mount the pump so that it is as low as possible but not to to low that it sticks past the bottom of the tank. This will prevent possible issues with the pump due to the fuel level. You can then run the fuel line where ever you want. The pictures show how I ran my fuel lines. I felt this will provide the most protection as I didn't want them to where they could possibly get hit and cause major issues. Fuel lines 1.jpgfuel lines 2.jpg. If I where you I would actually ditch the external pump they sent with the motor and use the factory five fuel tank and sending unit and put a Walbro 225 liter/hr pump in there. Walbro makes drop in pumps for about $75 that include the prefilter so you can send yours back and refund money will cover most if not all of the cost of the Walbro pump kit. For a fuel injections application this pump is good to 500 hp as long as the fuel lines will support the flow. I am running dual Walbro 225 pumps with a -10 an feed line and I plan on pushing about 1000hp in my carb application. The only reason I say this is because in tank pumps always last longer because they always run cooler, that's why all factory cars use in tank pumps. It will also clean up your fuel system install and not cost much if any any thing more then you have spent now to do it.

I don't know whether to thank or curse you! I now have more information to digest and consider before moving on. At least at this point in the build, changes are easy. I should have my engine and all the EFI parts in a few weeks, so I may just hold off making any decisions until then. I guess it's time to start getting the insulation in place.

Thanks,
Dave