B Bearcat Free Member Oct 28, 2014 #1 I'm building ZR 800 based pump gas turbo mountain sled. I haven't found info about helix angles anywhere. What kind of helixes have you used with those old ZR style roller secondaries with pump gas kits?
I'm building ZR 800 based pump gas turbo mountain sled. I haven't found info about helix angles anywhere. What kind of helixes have you used with those old ZR style roller secondaries with pump gas kits?
