jferg92

I thought I single walbro would suffice vs the standard lightning twins. Maybe I'm lost. This swap info combined with school and work info is jumbling my brain

charliedyal

[MENTION=92839]MyFX4Project[/MENTION] is running 24# injectors so he doesn't need as much fuel. I'm not sure what the flow rate is on the stock L twins, but I'd bet it's higher than 342 combined.

jferg92

twin walbros so approx $150?

I don't remember this detail of the swap. And want to pick some up to do over break

charliedyal

You'll have to check around. I got lucky and found a used pair with hat & harness for $100. I'm really not sure what they are new. I bet [MENTION=76903]fordmotorsport[/MENTION]s knows

jferg92

Do don't plug in stock? Install kits maybe?

ibd2328

iTrader: (2)

I made my own little kit.

The twin lightning pumps put out 310 total. They are 155lph, so the dual setup can handle more hp than the single walbro.

Unless your going 400hp+ the stock l pumps will be fine.

The connector on the walbros are different than our stock pump. The stock l pumps have the same fitting as the walbros so they plug in fine.

ibd2328

iTrader: (2)

Also if you use the lighting hat, the connector won't fit your wiring harness. It's pretty simple to splice together though, or you can order a connector and do it that route.

The lighting has 6 wires that go to the connector, our trucks only have a 4 pin. 2 wires for the level sender and the others for power and ground to pumps.

charliedyal

So would [MENTION=64669]jferg92[/MENTION] be ok running a single 342 and use his existing hat?

BrowningSCrew

Only one piston left in this thing

ibd2328

iTrader: (2)

It's kinda hard to guesstimate or use math because most are rating pumps at 70 psi which is never good. You wanna look at around 40-45 psi. Also depends on your regulator

Too much fuel and you will max out the return. Two 255's would def be pushing it on stock fuel system. I would suggest the stock pumps or a set of equivalent aftermarket ones. Is he going with a ported charger ?