i have a high CR B17(exact CR unknown -bought used owner claims 12.1:1 CR pistons stock head. It's a project car at moment. with a yet to be tuned p28 s200 ecu. Plan on tuning on 92 octane.

I bought some supposed 93-96 prelude PnH 345cc injectors on a recommendation over stock b17 injectors. Is the only way to tell if they truly are 345cc is a flow test? Can i test them with volt meter and check ohm resistance, and tell as well, for sure?

i got the KEIHIN numbers off the circles of the injectors if that helps


i read something that those injectors will not work with an s200 unit, is this true?

if it is not possible to run those injectors, should i run saturated injectors in stead? I was thinking about rdx injectors with top hat conversion, then soldering the correct clips onto my obd0 engine harness and eliminating the resistor box.
if so i read also somewhere that its a slight advantage to individually ground each injector, how do i do this if it has its benefits.

Also looking at buying and installing either a b18c1/5 stock head to install to build up performance. a c1 is available locally.
will i need aftermarket adjustable cam gears to do this?

Also was planning on using 2-1/4 inch diameter exhaust pipe? good choice?

i hope this thread is not too confusing. I am totally noob with this whole modified engine, engine tuning, etc and needs for best performance, and properly supplying the engine with the things it needs.

thanks.

 

You won't need adjustable cam gears unless you are going to be degreeing in cams (usually aftermarket).

I would personally run 2.5" exhaust. And I mean that because I have a little higher CR than you and that's what I run right now. 2-1/4" was restrictive to say the least and robbed me of a little in the mid to top end