FlyinHawaiian
Member
- :
- Mazdaspeed Protege #1460
I'm sure you've done some reading around here, but check out this thread: http://www.mazdas247.com/forum/showthread.php?123700949-FS-DE-Oil-System
People around here always say "oh you can't make power in our cars" etc etc etc, but fail to mention why. While the stock bottom end is weaker than Steven Hawkings' legs, the oil system is where Mazda really s*** the bed. The oil pump wasn't ever designed to run at high-rpm settings for a long period of time and the oil pan/pickup are completely worthless on the track. The only real saving grace is we have oil-squirters (think diesel engine) in the bottoms of the cylinders to keep the backs of the pistons cool.
For me, because I think of myself as a "practical tuner," I would like to see a solid alternate solution made for the MSP's oil woes, and a high-RPM kit developed so we can rev past the pedestrian 6.5k we're limited to now. Stiffer valve springs and the like would make revving a MSP to 9k so much more fun. Just some food for thought and something to consider as you build your beast!
See below
As you probably already have determined, the oiling system in the FS-DE is marginally sufficient for a street car and desperately insufficient for a race car. One of the main problems is that with sustained rpms the placement of the pressure relief valve in the oil pump causes significant cavitation and further loss of oil pressure. Another major problem is the small size of the oil pan and the subsequent high likelyhood for the pick-up to become "uncovered". Finally, the last major problem is that the rods take their oil supply from the main bearings through pick-ups in the crank.
We have come up with a SYSTEM to help try to DEAL with these problems. Some of these problems are inherent in the design of the motor and would take high dollars to solve. I also stress a system, because simply adding our improved oil pump may help to a point but we have found the SYSTEM has given us much improved engine life (read bearing life)!
Of course, the heart of the sytem is our improved oil pump. Along with it is our externally adjustable oil pressure bypass, a gated increased volume oil pan, an engine block oil filter relocation adapter, and an external oil filter mount. As you can see, with this system you can adjust your oil pressure to the range you need it externally. This will allow you to compensate for several factors including the type and grade of oil you are using and the bearing clearance you are running (to a point).
Here is a pic of the system as installed on our race car.
People around here always say "oh you can't make power in our cars" etc etc etc, but fail to mention why. While the stock bottom end is weaker than Steven Hawkings' legs, the oil system is where Mazda really s*** the bed. The oil pump wasn't ever designed to run at high-rpm settings for a long period of time and the oil pan/pickup are completely worthless on the track. The only real saving grace is we have oil-squirters (think diesel engine) in the bottoms of the cylinders to keep the backs of the pistons cool.
For me, because I think of myself as a "practical tuner," I would like to see a solid alternate solution made for the MSP's oil woes, and a high-RPM kit developed so we can rev past the pedestrian 6.5k we're limited to now. Stiffer valve springs and the like would make revving a MSP to 9k so much more fun. Just some food for thought and something to consider as you build your beast!