Hi guys! Long time since my last post. A few months ago my B18C R blew up. The cause was the crank broke at the pulley side. I've got a new engine now, and i want to make the new B18C R more reliable so that i can take it to the track as often as possible. I just need to know the necessary parts that need to be changed so that i can constantly rev it without it blowing up in my face AGAIN! I know double valve springs will help. My budget is around RM3k-4k. Thanks in advance for your advices! :)