Nissan 370Z Forum - View Single Post

1slow370 · 01-26-2014, 06:36 PM

are doesn't list one for the hr/vhr? also there are not "traditional" gears in the oem pump it is just a gerotor assemble on the crank nose. google gerotor an just picture the center part as slipping over the crank nose. when the crank nose vibrates it slams the inner and outer gears together, this is why the only solution is to get it off the crank. The daileys pump spin around 87% crank spped so they are still moving very fast but they dont get crank nose vibrations. Daileys does this to make the pump smaller, the rest of the drysump industry runs more around 50% crank speed on a larger pump, so for the higher speed the daileys pump is more expensive, and because it is attached to the pan with a special flange you cant use a different pump.

01-26-2014, 06:36 PM	#37 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7251	are doesn't list one for the hr/vhr? also there are not "traditional" gears in the oem pump it is just a gerotor assemble on the crank nose. google gerotor an just picture the center part as slipping over the crank nose. when the crank nose vibrates it slams the inner and outer gears together, this is why the only solution is to get it off the crank. The daileys pump spin around 87% crank spped so they are still moving very fast but they dont get crank nose vibrations. Daileys does this to make the pump smaller, the rest of the drysump industry runs more around 50% crank speed on a larger pump, so for the higher speed the daileys pump is more expensive, and because it is attached to the pan with a special flange you cant use a different pump. __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50 Last edited by 1slow370; 01-26-2014 at 06:44 PM.