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Twin Bosch 044's Setup Progressively


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  • Member For: 21y 8m 18d
  • Gender: Male

I use MSD Fuel pump boost control part no 2350. It has a provision to trigger via boost but I dont use it. I trigger via ECU. I locate it in the boot along with the relays. YOu dont want any long wires from the front of the car as under the higher voltage the wires can get hot. There are other voltage booster and they are not cheap.

I wont be in my office for the rest of the week so cant get you a part number for the Pierburg but it is sold as a performance pump. Check with the distributor, he can tell you.

The 044 pump is just renown for doing weird sh*t when it gets into hot weather when used as an exteranal pump. Its fine in colder climates and when used as an intank pump.

On hot days with the heat radiating off the road, the 044 can make a hell of a racket to the point of being embarassing. I just dont want to hear the pump.

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  • Resident idiot.
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  • Member For: 14y 2m 28d
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  • Location: Melbourne

I like the sound normally, on hot days it makes a bit of a fuss priming and at startup but only for a few seconds.

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  • Member For: 13y 11m
  • Gender: Male
  • Location: Auckland, New Zealand

I wonder if you would would be able to hear your engine running over an 044 @ 18.75v

To be fair mine's not too loud at 12v but it's fully rubber mounted.

Edited by riptide
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  • Member For: 17y 11m 4d
  • Gender: Male
  • Location: QLD

I'm staying with surge mounted at front.

The process west unit I have.

But if I find it not to be adequate to supply I will go with a larger one at the rear.

I already run a oddesay battery in the boot with power cable running up to the starter.

I would be running power straight from there to pump via relay and booster.

No running extra wires from rear to front.

Just have to read up on that msd pump voltage booster to see if it's safe to mount on firewall or if I would have to run it under dash.

Meaning running cables in and back out of cabin.

Pump will be rubber mounted as per the pw kit.

But I'm also going to run rubber mounts between surge tank and chassis.

I don't think the pump will be to annoying but then again I have not run a 044 before.

I run 4" custom dump into xforce single 3.5" system.

Plazmaman plenum , 4" intake into to4z.

Will be making a custom 4" exhaust later on after the engine build is complete as well after cv's are done.

I'm sure my induction noise will drown out the 044.

Just be the cruising and idling that may concern me if it's heard.

I like how nice and quite my car is at cruise and idle and are over noisy pumps.

Didn't mind the old Holley blues back on my old Henry v8's but now days not interested.

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  • Member For: 17y 11m 4d
  • Gender: Male
  • Location: QLD

Looked at the msd unit.

Recommends to mount away from engine bay heat.

As well the power to pump wires need to be within 1 foot from unit.

This will be a problem if running the pump at the pw surge tank.

Excellent bit of gear though.

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  • Member For: 17y 11m 4d
  • Gender: Male
  • Location: QLD

Found a 1-25psi boost switch that can be used to either switch on or off what ever you want to run. Eg water, methonal injection pumps, nitrous or my case switch 2nd fuel pump on.

Only $35 US.

Back to running twin pumps (billet holley twin unit) ?????

Decisions.......

Here's the link

http://www.alcoholinjectionsystems.com/p129/AIS-1-25-PSI-Adjustable-Boost-Pressure-Switches/product_info.html

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  • Resident idiot.
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  • Member For: 14y 2m 28d
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Have you got the process west one mounted now? If you can hear it from inside something's not right.

I've got the plazy unit which is the same and can't hear anything from inside. Looking at twins now not really concerned about the noise as I don't think it will be too bad.

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  • Member For: 19y 4m 7d
  • Gender: Male
  • Location: Melb

having a fuel pump turn on based on a boost switch probably isn't the best idea due to the massive electrical load the fuel pump causes on power up.

That electrical energy would best not be surged away from the spark system, which is already weak to start with.

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