My current set up is a 91 Crx with a 91 Ls motor and tranny. I just bought a complete Gsr head with manifold and all the other stuff I need. My question is what do I need to do to my wiring to be able to run the Ls vtec? Could I just buy a V-AFC controller or will I need to witch over to the GSR ECU? If I need to switch over to the GSR ECU what is involved in the wiring? thanks for the help

 

Run 1st gen. JDM B16a ecu and convert your LS wiring to B16a

 

since you didnt mention the oil line .. I guess you must have that already covered.

 

As said before you can use the pr3 or pw0, but you will have the problem with the dual runners on the gsr intake, unless you buy a skunk manifold or a similar one. If you use the pr3 you are also going to have to do another o2 sensor bung on the manifold. This is what I would do. Also when you get your ecu, make sure that it is a manual trans version and not an auto as performance will suffer.

 

Is there any way to just wire in a VAFC into the Ls wiring and control the vtec and make the necesry fuel adjustments with it and thats all that I would have to do for Wiring. This is going to be a tightly budgeted car and I already have the Ls wired in and dont have connections to get b16a stuff like I can other b series stuff.