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Help With Motec M4 Ecu

bngbng
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bngbng Enthusiast

bngbng

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Posted

hi i own a R33 S2 GTST with rb30/25 in it..i have not gotten it wired up etc yet and am a bit confused with the ecu side of things as im not the smartest when it comes to that..i have a motec M4 clubman but the problem is its designed for a 4cylinder and only has 4 ignition & injector outputs but i need 6x outputs for each? i was reading through another site about it and they were saying it is still possible to run it through a 6cylinder by parallel up 2 of the injectors and 2 coils..another site said to run a motec igniton expander and use batch or semi seq fire for injectors (which i dont really understand)..also i have indy blue 1700cc injectors would it be risky to parallel them up or it would make no difference? can u please help what i should do or need to get? apart from buying a new ecu whats my best option?

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https://www.sau.com.au/forums/topic/387249-help-with-motec-m4-ecu/
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Guilt-Toy Grand Master

Guilt-Toy

Posted
Posted

that ecu is a brick these days, the M4 uses the old dos software and are very outdated.

YES you can run the coils in wasted spark and the the ignition in semi sequential, but running 6 x 1600cc indy blue low imp injectors is really pushing it if you ask me.

It might work but you will need to pay someone who KNOWS what they are doing with this specific motec to install and it and try it, and then if it dont work you need to remove it all and then go back to where you started from.

My opinion for you is to sell that ecu to someone else more suited to their application and buy a plug in ecu, Vipec or Haltech and get the job done properly.

Also try and avoid using those injectors, they are not the best, grab some ID1000 injectors - they are great.

cheers

bngbng Enthusiast

bngbng

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Posted

ah ok really..yeah i was thinking im prob best of looking for a new ecu that suites my application more but wanted to see if i had any other options..i was thinking of either haltech or motec m600..also why do you think those injectors are not the best? i did read something about them saying they dont idle properly and i would have to use methanol not petrol?

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