Later Injectors & Rail Retrofit
Discussion
In a word No...
The flapper ecu expects low impedance injectors and the resistor pack while the Hotwire uses high impedance injectors. The fittings in the manifold are also different as the flapper has a longer "nose" although it is possible to work around that by swapping the pintel caps, then you have slightly different fixings for the fuel rail and pressure reg.
You would really need to swap the whole injection system and wiring over and I'm not sure quite why you would do that, simpler to get your injectors refurbed !
The flapper ecu expects low impedance injectors and the resistor pack while the Hotwire uses high impedance injectors. The fittings in the manifold are also different as the flapper has a longer "nose" although it is possible to work around that by swapping the pintel caps, then you have slightly different fixings for the fuel rail and pressure reg.
You would really need to swap the whole injection system and wiring over and I'm not sure quite why you would do that, simpler to get your injectors refurbed !
I've done loads of research and playing with MS1 and MS2, there's loads of variations within MS 1/2/3 and microsquirt; the system I have is compatable with the flapper injectors and high impedence injectors. The problem, if you want to call it that, is simply the multitude of possible variations of engine state and ambient conditions. To get it running as well as OEM set-ups you need to spend absolutely ages experimenting with different settings under different conditions; as an individual I simply don't have the time and facilities. Don't get me wrong, the megasquirt system is very good and runs well; just not as well as a car developed by a manufacturer with loads of time/facilites - my standards are high!
Looks like I've been reading sites that need an update!
I bought a set of later injection set up in anticipation of going MS as part of an enginebay clean up.
I'm having some running issues that may be injector related. Clearly I don't want to spend on something that is going to be redundant in 6 months.
I bought a set of later injection set up in anticipation of going MS as part of an enginebay clean up.
I'm having some running issues that may be injector related. Clearly I don't want to spend on something that is going to be redundant in 6 months.
Hi mate
I know its a RPITA but would it not be better to whip the injectors out and send them Mr Injector tune or the like to test and rebuild if needed?...I have a set of black injectors on a fuel rail albeit the later type with push fit..I think they were still flapper..I was going to make a test rig with a couple of 1.5v batteries...
Ziga
I know its a RPITA but would it not be better to whip the injectors out and send them Mr Injector tune or the like to test and rebuild if needed?...I have a set of black injectors on a fuel rail albeit the later type with push fit..I think they were still flapper..I was going to make a test rig with a couple of 1.5v batteries...
Ziga
Be careful of UK Megasquirt sites, there's a lot of information out there which I consider to be incorrect after painful 1st hand experience.
And another thing... the flapper and hotwire inlet manifolds are different and the hotwire injectors will not seal correctly into the flapper inlet manifold, you'll get air leaks and poor running (been there, done that).
And another thing... the flapper and hotwire inlet manifolds are different and the hotwire injectors will not seal correctly into the flapper inlet manifold, you'll get air leaks and poor running (been there, done that).
The Hatter said:
And another thing... the flapper and hotwire inlet manifolds are different and the hotwire injectors will not seal correctly into the flapper inlet manifold, you'll get air leaks and poor running (been there, done that).
Mr Injector sells longer pintel caps that can be used to make late Bosch injectors fit the flapper manifold, you cut the old caps off bin the 'O' rings and washers and the push on the new caps. converting from clip on fuel rail to the rubber hose option is a little less erm "reversible" but it is possible to fit late Bosch injectors into the flapper manifold and fuel rail.Mark,
Somewhere I have a circuit board for pulsing injectors which I made for cleaning and testing mine, if you need it I'll dig it out !!
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