Heating issues, help plz

[RBadam]

ok i have a SI rb25det koyo 4 coretwin 10" permacoolshood risers1 bottle of water wetterand ive bled the system couple time to make sure that wasnt the problem

ok the car does great in traffic and in around town driving just only when im on the highway on 90F+ days the temp starts to rise and wont stop, i always get home before it gets too hot but i figure it would keep going up, anyways i read this threadhttp://forums.nicoclub.com/zerothread/262601 which was awesome!!gj cpt_impossibleand i think it sounds like a t stat, but i want some more opinionsany help is appreciated

[Coolwhip]

pics of the 4 core Koyo, never heard of it and would like to see how you got something like that to fit.

Have you tried ALL of the suggested procedures that was covered in that thread?

[Coolwhip]

get rid of the hood risers, they are not good for higher speeds. Low pressure from the top of the hood circulated under the back of the hood and keeps hot air in under higher speeds. Low traffic speeds its great, such as autox events.

Are your fans pushers or pullers? if they are pullers try not using them when on the highway, they might cause restriction (hence the air running through the front is faster than the fans can pull it off)