Hello, I am new to the forum and am located in Costa Rica. I race in an amateur class, http://www.tech-racing.com, that is my w-page, and need advice on engine work.

B16a2, CTR cams, CTR pistons .20 over, I/H/E. The engine is apart and I wanted to get head work and valve job, but no one here seems to know which angles to use. Do you have any angle and cut width recommendations? This is road race application and rev limiter is 8500rpm

so far I understood from the forums that the valves are recommended to be 3 cuts and the seats also three cuts but only the 45 degree sealing cut is the same on the valve and the seat. The others vary.

I am stuck and need to tell the machine shop something.

My email difvisionnn@hotmail.com

Thanks, Francisco

My email is difvisionnn@hotmail.com

 

good luck valve grinds are kinda just not handed out

 

Yeah I have to try though, I don't exactly have 5 heads that I can cut and try on. I will start by having the head ported and put on a flow bench. I guess we will try our best guess on the valve angles....