Are those marks around the valve seats inside the chamber there some kind of speed Secret?
LOOKS LIKE THEY WERE ORIGINALLY CNC`D-------
Today's approach to porting does not include smooth ports and chambers. The flow is better when the material is dimpled or otherwise textured... think of a golf ball that flies farther with dimples.Are those marks around the valve seats inside the chamber there some kind of speed Secret?
So, you have owned a set then?intake port ok
ex and chamber no
IMHO prove me wrong
I'd be checking
350 on the intake...... that’s a pretty nice number.
210@.700, 223@.800 on the exhaust...... not great.
How does the exhaust “sound”?
2.10 and 1.65 valves?
45* seats?
Pay attention readers...PBR is giving free lessons on why flow numbers are NOT the do all, be all everything to die for numbers.
THANKS PBR.
They are designed to be that way...a smooth finish is going backwards.The single reason 'technically' the program would leave a rougher finish is machine time. A smoother finish generally will take longer to produce; you're taking more, smaller passes.