Peak and hold injector driver board

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Re: Peak and hold injector driver board

Postby racingmini_mtl » Thu Feb 04, 2010 8:43 am

JAM wrote:
racingmini_mtl wrote:Yes, you can drive high Z injectors with the p&h drivers. So you can install the board now and switch to low Z injectors later.

Jean


what benefits would you get from using the board with hi Z injectors? Would you have to use any different components in the board for use with the hi Z injectors?

The only benefit is that you can install the board and still use the high Z injectors that you have until you get the low Z injectors. That might be useful if you're building a new MS but don't want to add the p&h board later. Actually, there might be another benefit depending on how you wire the board: since all the high current from the injectors is removed from the MS board there might be less noise. Of course, you have to use a separate injector ground for that.

And there is no need to change anything on the board to use high Z injectors.

Jean
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Re: Peak and hold injector driver board

Postby Perkele » Fri Feb 05, 2010 12:07 am

racingmini_mtl wrote:
JAM wrote:
racingmini_mtl wrote:Yes, you can drive high Z injectors with the p&h drivers. So you can install the board now and switch to low Z injectors later.

Jean


what benefits would you get from using the board with hi Z injectors? Would you have to use any different components in the board for use with the hi Z injectors?

The only benefit is that you can install the board and still use the high Z injectors that you have until you get the low Z injectors. That might be useful if you're building a new MS but don't want to add the p&h board later. Actually, there might be another benefit depending on how you wire the board: since all the high current from the injectors is removed from the MS board there might be less noise. Of course, you have to use a separate injector ground for that.

And there is no need to change anything on the board to use high Z injectors.

Jean


You are correct and I'm of course aiming for full sequental controll and when I use p&h board I get alot of room on the V3.0 board if I remove all the unnecessary components. I can put COP ignition drivers etc. easily on the V3.0 board.
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Re: Peak and hold injector driver board

Postby jsanches » Sun Feb 28, 2010 2:43 pm

Hi,

I have a question about how to ground the P&B board. I have ground the both wires (ms ground and the ground of injectors drivers) on the MS board. However I don't see some noise, I thing I shound have ground the drivers into car's chassis or car's battery.
I also have ignition driver running and I could use the same ground for the injectors drivers.

Thank you!
Juliano
Chevy Opala Diplomata 4.1 - TBI Holley and Hall Sensor
Megasquirt-II [2.1.0], PCB v2.2, Peak and Hold Driver Board
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Re: Peak and hold injector driver board

Postby racingmini_mtl » Sun Feb 28, 2010 3:42 pm

You want to ground the drivers to a good car ground. If your ignition drivers are grounded outside the MS then, yes, you can use the same ground.

Jean
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