so i have a 1990 hatch with a jdm b16a that is all stock with exhatst intake and a chipped pwo and today i picked up a complete b18c1long block with EVERYTHING including the wiring harness and a gsr y80 with lsd and itr 4.7 fd and a full set of teg seats all for 400$ ( i bought it from my uncle out of his wreaking yard, he was just going to crush it so i practically bought it for the price of scrap) but i was wondering what would it take to swap my b16 out for the gsr or if it is even worth the trouble? can i just put my dizzy on it and run my pwo? and is the rest of my wiring harness gonna even fit it?

 

Electrically its basically the same. Unless you use a skunk2 type manifold your IAB's will be open all the time on the intake manifold. Also you would be wise to get chipped for a B18C1 basemap on your ECU. And yes it'll be worth the trouble. BTW what year did the engine come out of because if its OBD2 you'll need to swap some things over from your old motor (injectors, alternator, distributor).

 

alright well now i think i am trading the bone stock gsr for a b20b with arp head studs 1 layer head gasket port n polished crower 403s crower springs n retainers adjustable cam gears itr intake mani and an omni 68mm tb aem wideband and a dc4-1 header. but i was just thinking about puttting my b16 intake mani and outting the 68mm tb on that and porting the **** out of it cause the b16 mani has a better powerband under 7 and i dont want to rev a stock b20 botttom end that high?

 

keep the b18c1!!

 

i would never trade up a B18C for a B20, do not do it

As far as the swap goes, it would be your best interest to do an OBDI conversion allowing you way more tuning options and a much faster ecu. You should be able to reuse your original harness, with only a couple minor mods.....

- the engine temp sensor is relocated from the back of the block to the thermostat housing
- the air intake temp is relocated from the intake manifold arm, to the rubber air intake tube
- you will have to repin the distributor plugs on your harness to plug and play the newer design
- swap the electron speed sensor out on the newer y80, for the cable speed sensor you are using now, or you can convert to electronic speed sensor and run wires up to a newer cluster that looks for that signal
- swap the driver side engine post mount for either the 1st gen engine post mount, or use a integra 90-93 model
- you will need a cable to hydro conversion to use the newer tranny

 

why keep the gsr over the built b20? i really want the torque of the b20 and if i ever blow it up i can just get a b18a or b bottom end and still have a built motor basically cause i dont have the money to buy gsr bottom ends. he has the motor in a ef sedan and has time slips of it running high 12's i dont think a bone stock gsr will do that. and i dont plan on using the lsd trans. i would like to but i would rather have the cash and just keep my j1 trans cause they are almost identical gears just no lsd.

 

? anything