OFP Mod for REW Install
#1
OFP Mod for REW Install
I do not know if this has been covered on this forum. If it has then just ignore everything below this line. Just hoping to save people multiple rebuilds
We have a car in the shop right now for a REW install, that has spun bearings on multiple engines prior to it coming to us. As I was reworking EVERYTHING, there were multiple candidates for causes of this failure.
Bearing failure is caused by oil starvation, and this car had more than its fair share of massive oil leaks. However the main cause of the multiple engine failures was the use of the Renesis Oil Filter Pedestal, this is a must with the REW install since there is no clearance for a filter or the oil cooler return line with the REW pedestal.
The problem is that the pedestal looks like it will mount directly to the engine, which it will, however the supply hole to the bearings is more than 50% blocked, the hole for the oil to return to the pan through the pressure regulator does line up. This leads to a false sense that there is plenty of oil reaching the engine internals.
Renesis gasket on a REW, notice how the top hole it half blocked.
Renesis gasket on Renesis OFP
Renesis Gasket on FD OFP
Etched hole locations from REW
Dykem and scribing
Ported
We have a car in the shop right now for a REW install, that has spun bearings on multiple engines prior to it coming to us. As I was reworking EVERYTHING, there were multiple candidates for causes of this failure.
Bearing failure is caused by oil starvation, and this car had more than its fair share of massive oil leaks. However the main cause of the multiple engine failures was the use of the Renesis Oil Filter Pedestal, this is a must with the REW install since there is no clearance for a filter or the oil cooler return line with the REW pedestal.
The problem is that the pedestal looks like it will mount directly to the engine, which it will, however the supply hole to the bearings is more than 50% blocked, the hole for the oil to return to the pan through the pressure regulator does line up. This leads to a false sense that there is plenty of oil reaching the engine internals.
Renesis gasket on a REW, notice how the top hole it half blocked.
Renesis gasket on Renesis OFP
Renesis Gasket on FD OFP
Etched hole locations from REW
Dykem and scribing
Ported
Last edited by Banzai-Racing; 03-26-2015 at 09:52 AM.
#2
Registered
iTrader: (1)
Thanks for posting, saving a couple of us a few headaches down the road.
Do the holes on the pedestal need to be port matched? A quick idea also, why not use an Rx8 oil filter relocation kit and use an FD plate to mate to the block. Theoretically you would only have to worry about matching AN fittings, correct?
Do the holes on the pedestal need to be port matched? A quick idea also, why not use an Rx8 oil filter relocation kit and use an FD plate to mate to the block. Theoretically you would only have to worry about matching AN fittings, correct?
#3
That is what the last few pictures are showing
there is no clearance for a filter or the oil cooler return line with the REW pedestal. There is also no room for a OF relocation kit on the FD pedestal.
#7
Modulated Moderator
iTrader: (3)
I just made an adapter too.
Getting the oil filter remotely mounted is more than worth the cost of admission as well
I find it difficult to believe that they wouldn't have noticed that the oil filter pedestal adapters were different
I might be worried about how little material is left on the side you adjusted as well.....it doesn't leave much for the gasket to seal
Getting the oil filter remotely mounted is more than worth the cost of admission as well
I find it difficult to believe that they wouldn't have noticed that the oil filter pedestal adapters were different
I might be worried about how little material is left on the side you adjusted as well.....it doesn't leave much for the gasket to seal
#11
You must be running the return line to the remote filter, then to the block.
If you look inside the OE pedestals you will see that the return flow is split between the filter and regulator.
If you look inside the OE pedestals you will see that the return flow is split between the filter and regulator.
#13
Obviously, they would need to be, otherwise you would either be feeding all the oil to the regulator or all to the bearings. Both scenarios would result in instant failure.
I was referencing the factory oil flow through the OE pedestal. What you are planning should not hurt anything as long as the filter is not too much of a restriction, since all the return oil is going through the filter. Factory flow splits the return between the regulator at the pan and filter, then the filtered portion goes to the bearings.
I was referencing the factory oil flow through the OE pedestal. What you are planning should not hurt anything as long as the filter is not too much of a restriction, since all the return oil is going through the filter. Factory flow splits the return between the regulator at the pan and filter, then the filtered portion goes to the bearings.
#15
Registered
Thanks Banzai, I noticed that same issue when attempting to test fit the RX8 pedestal onto the REW block. I will make those modifications as you illustrated.
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