I'm planning on building a 600rwhp LT1 on spray this winter. When is it necessary to upgrade to dual intank walbros? I have a single right now and it just went out (I ran it outta gas ). Should I just get an external pump? Would a single walbro with the racetronix harness work fine?

 

If your going to replace it you might as well just drop in a second one. It cant hurt, for $225 have the ability to fuel 1000hp

 

See sig. I'll be puting in a second walbro in the next week or so.

 

i wouldnt go any higher than mid 500's. i have a friend with the hotwire kit and put down 59x with a d1sc and hes runnin out of fuel. every car is diff, but why push it!

 

Are you saying the pump will go out if you run outa gas?

 

problems isnt the power limit its the instant drop youll get from a 200 shot nitrous hit

 

They don't like to be ran outta gas. Right now I'm considering 2 Walbros or a Bosch 040 pump.

 

The reason they don't like to be ran out of gas is because at around a little under a quarter of a tank they start getting hot. Running aftermarket pumps hot for an extended period of time does terrible things to them.

I've seen people with 700hp on the shot with a single pump. You have to take into consideration the voltage the pump is getting as it may attribute to the feeling like the pump is reaching its limits. A simple BAP will fix that.

 

I would go ahead and put both in since you will be on the limit.

 

I'd do two if your gonna be in there anyway, piece of mind if you ask me.

4sfedz....that vette in your sig come from TX