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The Haltech Platinum Pro Thread

GTRNUR

By GTRNUR,
in Engines & Forced Induction

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GTRNUR Grand Master

GTRNUR

Posted
Posted

Now that I've got one of these Ecu's in my car I've been slowly getting familiar with the VE approach to tuning. Searched as I have, I've not seen a thread with much useful information, and certainly nothing with any cool tricks or FAQ.

So let it begin. If you come up with a unique solution or trick then post it up.

Got a question, post it up. Know the answer... post it up!

Automatic Cell Tracking

The first thing with the Haltech that I noticed is that it wont "align" to the current load point without you first pressing the space bar. This is a bit annoying for me, as I have always used this feature when performing light load tuning corrections when road tuning. I normally do this with a wireless mouse that has extra programmable buttons to send increase/decrease current cell keystrokes.

I found the solution to get that capability here in a program called X-Mouse.

http://www.howtogeek.com/howto/14400/use-those-extra-mouse-buttons-to-increase-efficiency/

This program allows you to map a sequence of simulated key strokes to the extra mouse buttons on any mouse.

Variable fuel pump speed control

I've upgraded my fuel pump setup, and wanted a method to control the fuel pump speeds so they dont run flat out the whole time. There are a few benefits to this. The main ones are cooler fuel, less power consumption and electrical system load, and the capability to run smaller supply, regulator, and return lines for the pressure circult.

I have used a pair of solid state relays which are driven by a pair of DPO outputs. The outputs are controlled by a table that uses the Fuel Pump signal as one axis, and the other axis linked to Injector 1 duty cycle. Fuel pump speed is ramped from 30 at idle to 100% at 70% injector duty. It works a treat for the lift pumps and the main pressure pump. The Holly 1800 remains at near ambient temps to the touch.

The map is set such that if the duty is at 0, but the pump is on duty will be at 100% so the fuel system will prime. Once duty is > 1%, fuel pump speed becomes variable and dependant entirely on duty.

As the motors are an inductive device, a 1n4004 diode must be wired across the fuel pump motor. Otherwise a high voltage spike will kill the solid state relay as it is switched on and off at high frequency.

Thanks to Mitch at Haltech for assisting with the mapping for the PWM DPO's.

Everyone feel free to contribute.

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HarrisRacing Proficient

HarrisRacing

Posted
Posted

I'm in on this as well.

Pulsed out fuel pumps! Sweet!

I am still building my engine and i just started going through haltech software for mine. What kind of IO are you using for boost control and which solenoid?

Also what kind of IO board are you using for the fuel pump pulsed outs?

I'm quickly realizing the power of this ecu!

GTRNUR Grand Master

GTRNUR

Posted
  • Author
Posted

So Fuel Lab have built solid state relays into their pumps. Pretty clever and yes it should work too without the need for a solid state relay to drive it.

There isn't much info at all on their electronic regulators though other than that they contain a PWM controller in the base. Shame it will be mounted at the wrong end of the car to easily connect to the pump.

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