I have a first gen B16A in my 90 RS and was wondering if switching vtec solenoids to one from a B17 or B18C will affect the performance? I’ve heard it would increase the vtec sound effect but wondered if there was any other benefit from swapping them.
Also does it matter if it came from an auto or 5spd?
I don’t see how it would increase performance. All the vtec solenoid does is switch to the higher cam profile using oil pressure once a 12v current is run through it. The sound is also a product of the different cam profile, lift, duration etc…, and would not be affected by a different solenoid.