i just did a jdm gsr swap on my hatch. its not running like its suppose to...once the engine gets really hot not over heating..haha...it starts to lag wen vtec kicks. but when the engine is cool it runs like a champ. weird? yeah...dnt know wat the problem is....help if you can...thanks

 

will every time when you do a swap on any car or motor, the best way is to alway get a new water pump no matter what when doing the swap over. i had that happend to me before when i did the swap on cars.