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Old 03-31-2009, 08:42 AM   #1
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Default MSPNP and 1g DSM B450L 450cc (low impedance) injectors

Got a set of the above injectors which came with the turbo kit (second hand) would like to fit them in preparation for opening the taps

I have read through a few posts about injectors in particular the above injectors i just want to confirm a few things before trying to fit them to my 1.8 na MSPNP 10g:

Low impedance injectors won't work with Hi Res PNP firmware?
Other than wiring in additional grounding for the injectors and reloading the frimware on the ECU should these injectors work?

Hopefully some one on here either has them or may be able to help, look forward to your responces thanks

Phil
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Old 03-31-2009, 09:02 AM   #2
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True. The HiRez software won't drive lo-z injectors directly on any MS1, be it MSPnP or regular.

However there is an alternative to using the standard code. Specifically, this board. Truthfully, this device would be my preference regardless of what code or CPU is being used. The reason is that it keeps the injector grounds, which are probably the biggest single noisemaker in the system, outside of the main MS board. With this driver, you can run the injector ground back to the head separately from the main grounds, which is how "real" ECUs do it. It's a very clever design.

Alternately, you could just install an 8-10 ohm resistor in series with each injector. You'd want to find parts rated for at least 15 watts, ideally. 8 ohm resistors in the 20-50 watt range are common at electronics stores (such as Radio Shack in the US) as they are often used in loudspeaker applications as dummy loads.
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Old 04-01-2009, 07:13 AM   #3
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Joe

thanks for the responce i will look into the two options that you've presented, i have to say i wasn't that happy with the idea of taking the PNP a part.

thanks
PHil
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Old 04-04-2009, 02:26 PM   #4
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don't suppose there a thread where some ones made a resistor box?
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