Hey, I've got a 4th gen HB Dx, I'm putting in a 5th gen d16z6 and plan to run it with the 4th gen si ecu/ injectors and an Apexi V-AFC to control Vtec/ fuel map. What else should I know and what is the ecu number I'll need. I've already got injectors, and the engine, etc....

Thanks,

Jung

 

if you are going to to use a si ecu, then tou will not need the v-afc unless you really want it to lower vtec point etc... as the si ecu will cointrol the vtec point you and does have a nice fuel curve too, and if you want to use the v-afc a chipped ecu will give you a little better results. or have a chip done for what you want to do with the engine. the ecu you would use would be the p28.

 

why bother with a Z6? If you want some solid power out of a SOHC engine, bolt a D16Y8 (96+ sohc vtec) head onto a D16A6 (CRX Si) block. That makes 10.5:1 compression and VTEC, which will surprise the hell out of all the B16's that you stomp on

 

First off to one11racing, I'm using a 4th gen ecu, so it's not a p28 and the 4th gen civics had no v-tec so the ecu will not control vtec and I will need the v-afc. This is easier since the sensors are quite different from 4th to 5th gen.

To AwwsChwa, bother with a z6? it's vtec and it's replacing my DX engine, d15b engine, so swapping the y8, would require getting one, and doing the Minime swap would require the d16 block from another car, way to much effort.


All I need to know is the ecu model out of a 4th gen civic si.

Jung

 

sorry i made a mistake i see now with the 4 gen si ecu. why is it easier to run a 4 gen ecu with a 5th gen motor? you say that the sensors are all different. wouldn't it be easier to get the 5 gen ecu to match the 5 gen motor and sensors??

 

The 88-91 Si ECU is called the PM6.

For the others as to why it is easier to stick with an 88-91 ECU: The wiring harness currently in the car can be adaped to the new motor itself pretty easily. However, the 92-95 ECUs have a completely different plug on them so to plug one into an 88-91 harness requires either a $200 jumper cable or a whole lot of rewiring.