High horsepower EFI fuel system Inquiry

[Speedster]

I have a fuel system that I have put together for the car.
It is basically an Aeromotive system with an 11104 Elminator pump with a 16032 controller for continuous use. The car has forced induction with EFI. My under high boost conditions, the fuel pump falls a little short.

My questions are:
Has anyone utilized or know anyone that has used Kenne-Bell Boost-A-Pump or the MSD 2350 Pump Booster with the Aeromotive controller ?

For extreme situations, has anyone utilized a dual pump system?

Opinions on which system do you think would be better ? i.e. Overdriving the Eliminator pump for short, high need bursts, OR running a completely separate pump and plumbing ?

Other ideas ? :(

Thanks for any help you guys can give me.

[camcojb]

I ran that pump with 1000 HP and it was fine. Was rated to 1100 I beloieve under forced induction.


What injector size, fuel line size, etc.? I have run that controller and I have run the boostapump, but never together. I would think they were compatible if wired correctly, but I would call KB and Aeromotive to be sure.

Jody

[Speedster]

Hey Jody -
Thanks for the info.

I have a -12 feed line to the pump, a -10 from the pump to the front, and a -10 return line. Dan Meyer at RCI is welding on the -12 and -10 fittings in place of the -8's that normal come with the cell. I think Tom said he was going to see how 96 lb. injectors worked.

So, did you have any problems with your pump in continous street mode ?
Did you mount the pump in the trunk area or underneath ?
How loud did it seem to you ?
Did you use Aeromotive's rubber isolation mounts or some other mount ?

Thanks Again Jody. :)

[davepl]

I am just building an almost identical setup: -12AN to a 12302 prefilter, 11104 pump, 12301 post-filter, -10AN to the rails and -8AN return. I will likely go with their pump controller as well.

Does anyone have any photos of an A1000 or the 11104 pump mounted in a '69 Camaro? I was just under the car, and there aren't any blatantly obvious mounting choices.

Thanks!
- Dave

[XcYZ]

I like how SW mounted his fuel system in his 69. Maybe we can get him to post a picture.

[Speedster]

Davepl -

For what it's worth: when I was at the PRI show in Orlando, I spoke with one of the top Aeromotive technicians, he told me flat out if I tried to run the 11104 for more than 1/2 hour continuous (street use) without the controller it may boil the fuel (and possible cavitation) which really shortens the life span of the pump. An A1000 is a lot more forgiving.

Unfortuantely at that time I didn't know about the pump booster to get his input.

[camcojb]

Hey Jody -
Thanks for the info.

I have a -12 feed line to the pump, a -10 from the pump to the front, and a -10 return line. Dan Meyer at RCI is welding on the -12 and -10 fittings in place of the -8's that normal come with the cell. I think Tom said he was going to see how 96 lb. injectors worked.

So, did you have any problems with your pump in continous street mode ?
Did you mount the pump in the trunk area or underneath ?
How loud did it seem to you ?
Did you use Aeromotive's rubber isolation mounts or some other mount ?

Thanks Again Jody. :)

How much power are you making? I ran a stainless undercar tank so the pump was also under the car. I mount all my pumps with rubber insulators, similar to what MSD supplies for their vibration-proof ignition mounts. They really aren't loud when mounted that way. I was also running 95# injectors.

You want the controller period. It will have trouble on long runs without it!

[Speedster]

Hey Jody -
Don't shoot me, I know it sounds overkill, but Tom feels that at low boost the motor will be around 1000-1100hp. High boost could be 1500-1600 which is part of the injector equation. The high boost is if I can occasionally hook up with slicks at the local dragstrip (Orlando Speed World). I still have some 1/4 mile blood in my veins and as much as I love PT for the overall driveability, I can't stay away completely from the drags.

I know that you own/have owned extremely high powered cars. Quite literally your yellow 69 with the D1SC 540 was my inspiration.

[davepl]

I like how SW mounted his fuel system in his 69. Maybe we can get him to post a picture.

Who is SW? Sorry, I don't know everyone here yet! :-)

[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.

[camcojb]

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... :thumbsup:

[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. :thumbsup:

[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.