Quadzilla
04-21-2004, 11:35 AM
Just a couple of quick questions:
1: Does this really make any significant or noticable difference? My builder did this for me (and I didn't know that he was going to do it along with the other mods you see below). I had inquired about it and he took my inquiry as the go ahead to do it. I just hope it was worth the $$$. He ported the head also and I have the new cam, piston. Just wonder if it really helps...
2: Does the valve job cause the valves to seal against the head a little tighter and if so, would this cause the compression to change a little? One argument would be that if the valves seal better, the compression would be higher (not letting gases out from a bad seal). The other argument would be that the compression would decrease because the valves when closed, would be futher up in the head and increase the chamber volume thus decreasing compression.
So in summary, question 1 is given my mods, will this make a noticable differnence and question 2, does a 3 angle valve job to stock sized valves increase or decrease compression?
Thanks!
1: Does this really make any significant or noticable difference? My builder did this for me (and I didn't know that he was going to do it along with the other mods you see below). I had inquired about it and he took my inquiry as the go ahead to do it. I just hope it was worth the $$$. He ported the head also and I have the new cam, piston. Just wonder if it really helps...
2: Does the valve job cause the valves to seal against the head a little tighter and if so, would this cause the compression to change a little? One argument would be that if the valves seal better, the compression would be higher (not letting gases out from a bad seal). The other argument would be that the compression would decrease because the valves when closed, would be futher up in the head and increase the chamber volume thus decreasing compression.
So in summary, question 1 is given my mods, will this make a noticable differnence and question 2, does a 3 angle valve job to stock sized valves increase or decrease compression?
Thanks!