d15b4 to d15b

[waymad]

hi i just wanted to know about this swap i own a 92 eg civic the engine in it n0ow has d15b4 which is the dual carby engine and i wanted to swap to d15b which is fuel injected and vtec now i know that the engine bolts straight in but with my engine the d15b4 it has a computer so does that mean that all the wires will connect onto the d15b and i have to put the comtputer in and also wire 3 wires for the vtec, is this right also are they the same fuel pump
thanks

[ECU-MAN]

no the fuel pumps are different, you will need to install an electric fuel pump, main relay to control the fuel pump and other things, also you need to install a fuel return line, change the winring loom from ecu to engine bay ( correct me if im wrong peeps ) , then your engine loom connect to that, also need to add an EFI fuel filter no biggie, also add an engine check light someware.

to my understanding the 3 wire trick only works on already efi cars being upgraded to a VTEC engine.

theres is a few things you need to consider, like rear brake upgrade and emmisions.

[aimre]

why a brake upgrade? unless u change the mass of the car dramaitcly then u shouldnt have to. U wont be going Faster (ull still do 60 in a 60 zone).
its just that with a new engine, u'll get there fatser..

brake upgrades really arent as importants ...

*puts on flame suit*

[Weq]

from an engineering perspective, u need the same brake's which the engine was orginally complienced with.

[aimre]

fair enough...
but do the front brakes change from an eg GL to a VTi?

[waymad]

guys my car does have a fuel return