a friend of mine has a 91 teg (i think, its a obd0 chassis) he picked up a ls-v motor (block and head are obd2) head is a gsr. can he keep his pr4 ecu (i think thats it anyway)?
what does he need to drop it in his car? harness? a different ecu? it already has a jdm b16 (xsi motor) in it if that helps.
thanks guys.
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He is likely using a PR3 ecu, that is the OBD0 B16 ecu. He should be able to install the LSV with very minimal changes. It doesn't matter that it is OBD2 stuff, that really doesn't mean anything unless you are trying to go the other way (putting OBD0 into OBD2 car).
Yes that ecu will run the motor, but the larger displacement might require the fuel pressure being upped some so it doesn't run lean. If it has stock GSR cams I think they normally activate earlier than a B16, that won't really hurt anything but may just not perform as good as it could until it gets properly tuned.
I think you'll have to swap the injectors over since the OBD0 uses peak&hold and a resistor box, while the later motors eliminate the resistor box and use high-impedance injectors. Unless he wants to use the newer injectors & remove the resistor box and maybe the injector plugs. Distributor will need to be changed over, not sure if the OBD0 dizzy fits a later GSR head or not. Might end up having to use the GSR dizzy housing with B16 guts in it to fit the current harness, or hack off the harness-side dizzy plugs and splicing on the ones that work with the GSR dizzy.
He is likely using a PR3 ecu, that is the OBD0 B16 ecu. He should be able to install the LSV with very minimal changes. It doesn't matter that it is OBD2 stuff, that really doesn't mean anything unless you are trying to go the other way (putting OBD0 into OBD2 car).
Yes that ecu will run the motor, but the larger displacement might require the fuel pressure being upped some so it doesn't run lean. If it has stock GSR cams I think they normally activate earlier than a B16, that won't really hurt anything but may just not perform as good as it could until it gets properly tuned.
I think you'll have to swap the injectors over since the OBD0 uses peak&hold and a resistor box, while the later motors eliminate the resistor box and use high-impedance injectors. Unless he wants to use the newer injectors & remove the resistor box and maybe the injector plugs. Distributor will need to be changed over, not sure if the OBD0 dizzy fits a later GSR head or not. Might end up having to use the GSR dizzy housing with B16 guts in it to fit the current harness, or hack off the harness-side dizzy plugs and splicing on the ones that work with the GSR dizzy.
He can use the b16 dizzy on the GSR head. As far as wiring, he can use his old harness and just run the wires for VTEC and the knock sensor (if he decides to use one)
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