High horsepower EFI fuel system Inquiry

[camcojb]

Originally Posted by Speedster

One thing...the 1500-1600 hp figure I threw out is to make sure I have a good safety margin for the fuel capabilities of the pump. Whether those numbers are real will be for the dyno to decide.

I do have one other question though - As far as you know, is turning on a "second" pump always additive ? Let me rephrase that - if you have, say, an Aeromotive A1000 and the Aeromotive Eliminator, do both pumps put out the same pressure for a given voltage, and when used together they can flow the extra volume necessary ?

Tanx.

I think if you have dual pickups out of the tank (one for each pump) and a big enough main feed line it would definitely work. And yes, dual pumps work great, having the second set to come on at a preset boost for example. And definitely run a voltage controller to lower the voltage on the main pump at idle/cruise.

Jody

[Speedster]

Thanks for the info Jody !!

With the knowledge gained here, I think it is safer to go with the dual pump setup versus the pump booster.

Three main reasons:
1.) Was leery of going with the pump booster because of the switchover from the controller to the booster. With no controller it would be easy, but with the extra relays involved, I was very worried about the possibility of having a break or feedback surge in the pumps electrical supply during "switchover", hence a massive lean out condition.
2.) For the other 99% of the time, if one pump were to fail, you can always run on the other.
3.) The booster is almost the same cost as an A1000.

Tanx again...

[Speedster]

Not to get off topic, but how is your TT LT-1 build going ?
By the pics on your site that looks like one fun project.
Looks like that car can be a true driver. Power, Mileage, Quiet, Reliable, not too mention downright mean looking...

[dave96dcm]

Troy ran two A1000's on the Chicayne, the second pump came on at 3800 rpm's I think. I remember reading about it in the PHR that had pictures of the buildup. I think that car made 1200 hp.

[Speedster]

Thanks for the info Dave.

[nitrorocket]

That is some massive HP. I would seriously reconsider the power you will make and be happy with. I am making about 800 hp to the wheels and just use an A1000 and 96 lb injectors. An A1000 is good for roughly 900-1000 rwhp.

Reason I say this is that you will save alot of money and complication by only having to use an A1000. The Eliminator pump or dual A1000 pumps with a controller should both feed your setup. A1000 pumps will last forever it seems.

[Speedster]

Nitrorocket -
Spoke with Brett Chow (sp?) at Aeromotive.
He recommended that I run dual pumps - the A1000 pump with the controller ( since it will draw less thus lasts longer) and then use the Electromotive TEC3 to kick the controller to full voltage and turn on the Eliminator pump. This will be done at a preset level that Tom Nelson is optimizing and will program into the fuel/spark curves. A little more complicated than originally anticipated, but an extra pump is cheaper than an engine.

[nitrorocket]

Do you already have the eliminator pump? I would just do dual a1000 pumps if you dont. That will support over 2000 hp at the crank!

[Speedster]

Nitro -
Yeah, already have the Elminator pump and since it is being used for high demand only, I will keep it. Based on what Brett Clow gave me, he recommends Dual A1000's up to 1500 hp blown and Dual Eliminators up to 2000 hp blown.