first mods
 

Just bought '85 z31, what do innerd to do first RIGHT now

Make it run, drive, stop 100%.

change all the filters and fluids. new slave and master for the clutch hydraulics. plugs, wires and dizzy head/rotor

Get your battery load tested. Be sure you have clean, tight corrosion free terminals on both ends of your battery cables. Be sure the ground (negative) cable goes to a bolt into the frame before going to the starter. grounding through the starter is not a reliable connection. Z's don't like low voltage. causes the electronics to act funny. it is possible to have enough amps to crank but not enough voltage to run the electronics. If you have one size fit all cheapo clamp on terminals they are a problem waiting to happen. Usually on a rainy night around Oh Dark Thirty.

Clean the connectors for the maf or afm, ecu and tps. Deoxit by CAIG is probably the best connector cleaner on the market. spray with CorrosionX after cleaning and before putting together this will help prevent any further corrosion. DON'T USE DIELECTRIC GREASE.

Replace outer tie rod ends, and ball joints. replace the bushings with poly (don't forget to lube them as directed unless you like squeaky things). New shocks. Get new boots for power steering. all those things will make you think you are driving a different car. doing them piece meal is a waste you won't see a great improvement until you do the complete job. You need to get the car realigned after messing with the front. Have your tires in good shape and rebalance. Rear bushings nice too but more work and you won't notice as great an improvement. Rear shocks also because if the fronts are gone so are the rears. if car squats when you jump on the gas the rears are gone. If you have the electro adjustable shocks they are DEFINITELY GONE.

If you are doing a turbo car shocks (electro adjust I think may be only on the turbos) then you need the adapter plates to fit modern shocks to the car in the rear. Easiest way is find an n/a at the junkyard and take the mounting plates. They may be available thru NAPA (listed) but I had the n/a plates.

turbo n/a 85 z31?
 

could i take the turbo mamifold from another vg30et z31 and use it for my n/a 85 z31?

Befriend Google... it's very helpful. :)

Z31 NA to Turbo

rb swap
 

anyone know how hard it is for rb20det swap? also what can i keep and use during the swap.

Difficulty depends on your skill level. Difficult for my grandma, easy for a master mechanic. Since you are asking the question, you probably aren't qualified. Also feel free to use our search feature and Google. If you can think of it and type it here, you can type it into the search bar. In the 30+ years of your car's existence, almost everything has already been done and documented. We're here to help, but not spoon feed you.

now who is grumpy?