KA24DE with SR20 radiator?
 

Hello everyone im new to this , I have a few questions... I have awesome beautiful lady , 1995 240sx and as of yesterday I swapped out my stock radiator and removed the fan clutch .. there was nothing wrong with it I just hated how it sounded... I got a sr20 rad with fans changed the top hose to a really long one all seemed to be working at idle but once I start driving she shoots up and overheats... this is very depressing ... i think it might be the hose everything else is working but the hose seems to not have pressure from the rad side as it is boiling hot on the engine end... :facepalm: help. :wtc:

You still have air in the system.

Also verify that the fans are working

run engine at idle with radiator cap off, turn your heater on full blast, add fluid as it pulls down.

If that does not work you need to find the bleed points on the motor to burp the system.

I thought that, but when shes on with the radiator cap off the fluid does not bubble or even really move , I saw a video some guy loosening a screw by the thermostat to release air , we did that but nothing ... she cools down fairly quickly but sky rockets up just as fast if not double

You still have air in the system.

I had the same problem when i went from E to DE and when i loosened up the breather screw (after forgetting to bleed the system) it sounded like a tea kettle. So much air came out.