i recently just finished the swap in my civic and its a b18b obd2a swap in 1996 obd2a civic having over heating problems

first the fan wouldnt turn on so i have it jumped to turn on when the motors on and it will stay below the middle point for a long time but then when i start " driving it " and doing alot of accelerating it starts to rise alot
i filled it to the top with coolant and the fan now works and im still having the same problem

could it be a bad thermostat ? what else could be happening ill try to get you guys a video so you can see it jump around tomarrow on my way to school but for now i just hope somone might be able to shed some light
thanks !!

 

does it overheat when you are at a stop light and coo when you drive? if yes then its a blown head gasket. pull the plugs and see if they are really white

 

yeah when im just chillin it over heats.. but then when im smashin it it over heats too..
but when like say im on the fwy. and already at 65-70 and in fith just coastin its cool

 

you could have some air in the system. i would try burping the system.

 

leave the rad cap off and let it idle for like 15 min?