It's time... need to upgrade to twin Walbros?
 

I currently have a single Walbro 255 in tank, I am putting the procharger on the H/C/forged internals car (estimate 12 lbs boost), so I'm pretty sure I'll be needing an upgraded system :). I'm looking for someone that has done this/can guide me thru this.

I'm thinking twin Walbro's, and I've seen some people put them on a Hobb switch... so what additional parts would i need, etc?

Or would the cost be so high that I should just run an A-1000, etc?

Thanks,
Rick

Bite the bullet and get a fuel system that can handle more than what you need. Two walboros + hobbs switch = trouble, imo. You could have a fuel line come off on of the pumps and never know it. The fuel system is a place where a couple hundred dollars can save you from spending thousands on a rebuild.

^^^^^^^^^^MightyMouse has done a couple of writeups on this subject. It is at the top in the stickies.

Yeah, but Mightymouse actually likes those damn POS Walbro pumps. I have yet to see a single one that works as advertised. By that statement I am completely disregarding all of the people that put up with the check valve not holding fuel pressure as it should, because hard starts are one of the arguments AGAINST going to a better flowing pump.

Funny we have used them in hundreds of duel Walbro fuel systems without a single failure. Although ours are wired properly and use the correct hose in the tank. Dual pump setup is a great street setup and should be considered over the A1000 any day they flow alot more as well.Cheaper than buying the correct sumped fuel tank to run a big external pump like that. Give me a call I will help you get the correct system setup for your needs.

Nate

what if you need to run -10an feed line and -8return. can you still somehow setup dual intake pumps?

i had planned on running 2 A1000 fuel pumps, but this car will see alot of street time

I am running -10 feed and -8 return with triple walbro pumps. I use a metal LT1 tank and sending unit though. Cut the factory lines off and grafted bulkhead style fittings to use the an hose right out of the sending unit.

Why do you need -10 with 2 Walbro pumps? We flow more than enough through the factory fittings with our fuel systems. -8 line will flow about 1200hp. How much power do you plan to make? What is your setup? We have MagnaFuel pumps as well that will make alot of power and are very streetable.

Nate

i went my route b/c i picked up the entire fuel sys. cheap. lines, dual A1000 pumps, check valves, etc.


i just ordered a comp eng sump, and will have it welded to my 98 tank sitting in the garage. i've read about A1000's not being street friendly though. this car will see 60% street time.

the motor is a 408ci, GT47-88 by the way.

answered my own question. found this thread...

https://ls1tech.com/forums/fueling-injection/945231-8an-lines-fuel-bucket.html

i'm really thinking about going the twin intake route rather then dual A1000's...