Basically I am looking for something to work on while still driving my car. I was thinking of buying an older b16 head (flows better right?) and building it up. Here is what I was thinking.

Port and Polish
New Valvetrain
Type R cams

I was thinking of doing this b/c I want to go JRSC in the future and I see used kits for b16/ type R heads much more often. Anything I should do special for future FI plans?

Oh yeah currently running a stock GSR. If going FI, would it be worth my time to go ahead and tear down the block to throw in some new pistons too?

 

The PR3 (B16) and P72 (GSR) heads flow essentially the same.

Now, stock-for-stock the PR3 has a higher volume which means it produces a slightly lower CR than the P72 assuming the two heads are installed on the same block. If you're going to have the head ported, the larger surface area of the PR3 head will give a bit more flexibility when playing around with stuff but either head can be made to breathe well.

If you're buying a second head just to limit downtime, keep in mind that the PR3 and P72 intake manifold flanges are different so at the very least you'd need a stock B16 manifold to go with the head. Additionally if you're using the GSR ECU, it will be a bit confused by no longer having the two-stage intake manifold.

I guess the main thing to think about however, is how long you plan on continuing to drive around without the JRSC.

 

Thanks for the input. I realzie about the manifolds etc. Will all my electronics and sensors swap over?

 

not without reprograming them.

 

that is if it's a obd-1

 

Dude...reprogramming? What are you talking about? The car has a '95 B18C1 which is OBD-I. Take the OBD-I distributor and injectors off the B18C1 and put them on the PR3 head. Everything else is essentially the same.