Rb25det With Motec M48 Need Help!

[brendo.r32]

Hi everyone,

Just a quick one, am converting my r32 to rb25 w/motec & garrett gt3582.

Should I leave the standard ecu (rb20) for ignition etc, or replace with rb25 or just motec by itself?

Also what injectors good for 500hp?

Thanks in advance.

[GTScotT]

By the sounds of it you dont have the ecu yet do you? If you do, you would use it to control both injectors and ignition with the stock ECU that suits your motor to do the rest.

I believe ignition outputs 1,5,3 and 2,4,6 are bridged running waste spark.

As for injectors to suit 500hp, 550cc would suffice yet headroom is always good and 700cc seems to be where people usually go.

[brendo.r32]

By the sounds of it you dont have the ecu yet do you? If you do, you would use it to control both injectors and ignition with the stock ECU that suits your motor to do the rest.

I believe ignition outputs 1,5,3 and 2,4,6 are bridged running waste spark.

As for injectors to suit 500hp, 550cc would suffice yet headroom is always good and 700cc seems to be where people usually go.

Already have the motec with iex, i didnt mean ign timing, just reds air con etc. Sorry for the confusion