Think I need a 2nd fuel pump? - Lateral-g Forums

**Flash68** · #1 04-29-2009, 08:57 PM

So I got around to thinking about my fuel system again as we are about ready to fire up the motor for the first time in 2+ years. I originally had the A1000 external pump with the stock tank, but switched it out for a nice Rick's tank with in-tank Bosch pump. I never really checked the specs on the pump until now and I have a few questions/concerns.

I have the 044 pump per Hector at Rick's, but I just noticed it is rated up to 685-700 hp. I am now concerned since my motor already dyno'd at 700 REAR WHEEL hp.

Will I be running at the dangerous edge of not enuf fuel here? I know a lack of fuel is not a good thing for a forced induction motor.

I am thinking it might be a good idea to add a second 044 pump inline between the tank and the fuel rails.

Thoughts?

lil427z · #2 04-29-2009, 09:03 PM

weldon pumps.
rick k

**Spiffav8** · #3 04-29-2009, 09:09 PM

700 REAR WHEEL hp!

When and where do I show up for a ride!?

**Flash68** · #4 04-29-2009, 09:19 PM

Quote:

Originally Posted by lil427z

weldon pumps.
rick k

Are you saying to add a Weldon inline pump to the system? At this point I do not see us taking apart the Rick's tank and switching out a perfectly good 044 pump.

Quote:

Originally Posted by Spiffav8

700 REAR WHEEL hp!

When and where do I show up for a ride!?

That's what a Jody Bernard-built monster puts out... on 91 octane.

I would love to make a trip to Vegas in this car sometime.

**Spiffav8** · #5 04-29-2009, 09:23 PM

Quote:

Originally Posted by Flash68

That's what a Jody Bernard-built monster puts out... on 91 octane.

I would love to make a trip to Vegas in this car sometime.

Well you've got a place to stay and a garage to park the car in any time you want it.

**camcojb** · #6 04-29-2009, 09:31 PM

you'll know if the pump is an issue as the fuel pressure will drop during a wot run (assuming injector duty cycle is good). Injector duty cycle will tell you if the injector is too small if the duty cycle starts approaching 85-90%+. The injectors in that motor (75's I believe) with an A1000 Aeromotive pump were perfectly safe. You may need another or additional pump at the 700 rwhp level, but I thought you had dropped the boost back with the larger blower pulley............

Jody