Cam size?

BigTang · Mar 30, 2011

didn't mean to insult but I wanted to make it clear on the order.

For an NA motor you can cut 1/4 of the way through the pistons total thickness on a forged piston(at these power levels)

Typically you don't need to go deeper on the cut, stock depth is fine, its just the overall arch of the cut needs to be larger. For a stock short block you can cut for a cam bigger than it can support.

things that make life easier are knowing the IVO timing, closer to 0* means more clearance, EVC again, closer to 0*= better clearance. typically on a small cam degreeing in some retard can give you more intake clearance at the expense of low speed torqeu.

itsblue95 · Mar 30, 2011

I know you werent trying to insult, and I didn't take it as one. So, if I'm understanding right all that needs to be done is to make the stock notch a it a little bit bigger/wider? and I'l be fine

BigTang · Mar 30, 2011

correct.

Take a look at my 3rd and 4th pics posted above. I used a huge intake valve, 2.10, to make my cuts. It never touches the bottom of the relief just near the top edge, thats the area that needs to be laid back at more of an angle. think of the relief as a V w/ a 30* opening and you need it to be a V w/ a 45* opening but you aren't making it deeper.