honda9krpm

AusS2000
sorry I dont have the answer but are you sure the 440 is up for the task?

I am getting the itch to go this pathway as well after got beatened by the 911 tt4wd at the track yesterday

MacGyver

Don't quote me on this, but I would be willing to bet the ground wire is the same for all four connectors. Put an ohmmeter on one pin of the major connector and test both pins on all four injector connectors. If the resistance drops to near zero more than once, you've found the ground wire/pin AND the ground side of each injector. If the resistance doesn't drop more than once, you've found the hot side of once injector, so the ground is the other.

AusS2000

I think I know what you are saying, but it's the new injectors that I don't know about not the old ones or the wiring.

Stock injectors are marked +ve and -ve and the wiring has a different colour for each injector positive and a yellow/black wire for all four positives. The new injectors have no markings and the connectors from RC just have two black leads.

I think I'll just try it in the same orientation as the stock ones and see if it starts.

If it doesn't I've got 8 solder joints to redo.

AusS2000

Done! The connectors are the same orientation as the stock injectors. -ve to the front.

I snipped all the OEM connectors off and soldered the RC Eng connector leads on. #4 was a real bugger as you only have about 5cm of wire to play with. I snipped it in the middle (in case I ever need to return to stock), stripped some wire and got in there with a little blowtorch to solder. As I disconnected everything yesterday I wasn't too worried about fuel but that would otherwise be a concern.

AusS2000

Oh, forgot to mention, started first time.

AusS2000

If I understand you correctly then yes.

I decided that if I was going to take a chance then I would initially wire the same way as stock as I figured there might be some standard that these injectors might adhere to. With each injector oriented the same way as the stock injectors (connectors pointing straight up) then the pin that is closer to the front of the vehicle is -ve and the connector closer to the rear +ve.

AusS2000

Here's some more pics:

Injector install

I'll doa bit of a write up shortly as there are a few tricks that I haven't seen mentioned anywhere.

AusS2000

BTW, the second picture is the E-manage real time display after entering the numbers for injector size correction. I used 380cc as the Before and 440cc as the After. As you can see the E-manage uses this to modify the MAP sensor signal so the ECU shortens the pulse to the injectors. Proper A/F tuning will be required to make sure this is correct.