Remote oil filter
 

Does anyone make an oil filter relocation kit that bolts directly to the block? All the ones I find attach to the filter pedestal.

Alan

I'll call to see if this one will work on a Renesis.

Oil Filter Bypass Block Kit for 79-95 Rotary Engine - Racing Beat

Just curious, why will one that doesn't mount to the pedistal not work?

I made this one.

https://cimg1.ibsrv.net/gimg/www.rx8...739febb7f3.png

Pedestal mount will work but I'd rather simplify the system to remove points of failure.

The RB block will fit on a Renesis but I don't understand how it works. Perhaps I don't fully understand RX8 oil flow but since the stock Pedestal has the return port for the oil cooler, how does the oil return to the engine with the RB plate? Guy on the phone didn't understand this question.

Seems like I need something like this:

https://www.ebay.com/itm/CXRacing-Oi...-/161504100058

I think the allows me to put the filter in series with the coolers.

AC

You are just making a simple project complicated. If you want aftermarket oil cooler lines, you can buy them or make them and run a second filter inline if you wish but that would be pointless.

Isn't the filter already in series with the coolers...
I thought the flow path goes sump -> pump -> coolers -> filter -> engine.

Yes it is.

Clearly, I'm not being clear here. Take a look at my build thread, already have aftermarket oil lines/coolers.

I want the flow path to be:

Engine (pump) - coolers - filter(s) - engine.

The remote adapters are:

Engine (pump) - coolers - pedestal - filter - pedestal - engine

The latter introduces at least 4 more connections/points of failure.

I'll work it out and report back. Thanks for replying.

Alan

I had no idea you had a custom lines or a build thread. You could use the CX racing part but I would never put anything CX Racing on my car.

I would go with something like this.

https://chipsmotorsports.com/product...-oil-manifold/

Exactly what I need. Thank you.

Alan

Cool man, let us know how it works out.

Well here it is. As far as I was able to determine, Chips is the only place offering an oil feed manifold adapter for the Renesis. Comes with an OE gasket (no longer has O-rings) and mounting bolts with a -10 ORB feed inlet, -8 ORB port on the opposite end, and a non- drilled bung for adding another port. It should flow better than the factory oil filter pedestal. I intend to install the oil pressure sensor in the other end with an ORB x NPT adapter fitting. I was hoping it might be more compact, but it’s as small as it can be with the -10 inlet.


https://cimg8.ibsrv.net/gimg/www.rx8...eb772b83e.jpeg

This thread helped me, so I wanted to add on and provide a bit more info.
https://cimg5.ibsrv.net/gimg/www.rx8...2231472a85.jpg
This is the stock oil filter pedestal.

https://cimg9.ibsrv.net/gimg/www.rx8...a98eff7e47.jpg
A closer look at the oil filter pedestal.

https://cimg6.ibsrv.net/gimg/www.rx8...b27534aad9.jpg
With the oil filter pedestal removed, you can now see the ports in the center, with the mounting bolt holes on the left and right. Oil flows out of the lower hole, combines with oil flow from the oil coolers, goes through the oil filter, then returns to the engine through the top hole.

https://cimg8.ibsrv.net/gimg/www.rx8...cf03dc381f.jpg
This is the back side of the new oil port housing. The AN10 ORB oil ring adapter is in the upper left. The lower right hole has AN8 Orb threads.

https://cimg2.ibsrv.net/gimg/www.rx8...f3a6a6378d.jpg
The new oil port housing installed. The AN10 ORB adapter is pointing toward the camera.

https://cimg0.ibsrv.net/gimg/www.rx8...f70d5e6186.jpg
This is the top view of the new oil port housing, with the AN8 threads with a cap or oil sensor installed yet.

https://cimg6.ibsrv.net/gimg/www.rx8...38ec80a3f0.jpg
An example AN10 line connected to the oil port.

yep :)

So where did you mount the oil filer out of curiosity? That's a great idea to simplify the system.

planning to mount at the front LH side of the engine, probably off the lower part of the front cover/AC mount area to also catch the outlet connection off the front of the engine. Unlike the OE system that will flow the whole circuit in bypass mode, this will bypass the oil coolers on a short path back into the engine for most of the oil flow to minimize pressure drop on cold oil.

Remote Engine & Transmission Oil Filter Mount with Thermostat ENV-170

I haven't mounted my remote oil filter yet. I plan to put it on the inside of the frame rail under the main relay/fuse box. With my radiator currently out, and not planning to use the stock airbox, there is a lot of space there. Also, I feel like it would be a good interface location for oil line removal when doing engine R&R.

That's approximately where RX8Perfomance shows mounting the thermostat for their cooler and line kit. They show it on the outside of the frame rail, whereas I'm thinking to mount on the inside.

https://cimg0.ibsrv.net/gimg/www.rx8...cb11860554.jpg

Is this because you run events with very cold temperatures, or do you want the thermostat to get the oil up to temp extra fast and run it at optimum temp?
I'm cringing at the $289 price

Not really, I was just explaining the difference and that’s just what it will do mounted there. The engine won’t be pumping cold, thick oil around the full line circuit like OE and most aftermarket systems do. There is some design and component differences between what you and I each have because of our intended uses though. Specifically, oil temp capacity and control is much less an issue for me not running continuous WOT for extended time periods like you will. However, it has been documented on the forum that this style bypass mounted as such comes up to temperature much quicker than OE bypass system. Which I specifically wanted to be rid of those by removing them and plugging the bypass path in the OE cooler.

It wasn’t a cost priority part for me and was chosen specifically for the known quality and high flow/low dp drop in both flow-through and bypass mode, is fully machined rather than cast, rebuildable, etc. It also came with the four -10 fittings and being a combo filter/bypass assembly it saves me the hassle of separate mounting & additional plumbing. It is heavier than you might think and even added more weight than the OE parts it replaces, but it does make changing the filter much more convenient and allows using a larger high flow, low dP filter.

One of the issues with the OE style bypass is it’s susceptible to bleeding/leaking. Not really an issue for street use, but bypassing hot oil around the coolers is not so good for sustained track use. I tried pointing this out multiple times on the forum; the OE coolers actually have adequate capacity with a few mods as I just described.

The OE radiator too, but that’s a different subject.

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Just noticed this is not a correct description. The oil pedestal is where oil returns to the engine. The outboard hole is the feed down to the bypass pressure relief valve where it will relieve into the oil pan and the returning oil goes to both it and the filter, then after the filter goes to the engine internals.

https://cimg5.ibsrv.net/gimg/www.rx8...a8e03aebe.jpeg


on the Chip’s pedestal the filter is remote located, so the returning oil has already been through the remote oil filter and all clean, including any oil that the pressure relief dumps back into the oil pan unlike the OE pedestal arrangement. On the combo remote filter/temperature bypass that I linked earlier, the oil goes through the filter whether in temperature bypass or not.

So to state the obvious, if I understand this correctly, the benefit of the chips oil pedestal is ensuring all the oil returning to the engine is filtered, unlike OE where bypass oil is not be filtered.
The benefit of the oil filter/pressure bypass you posted TEAM is eliminating the OE bypass system (which is prone to leaking/bleeding) plus the above.
So the OEM oil coolers can be adequate for hard track use if common issues such as leaking and having the ability to control the opening oil pressure are remedied?
I'm interested in this as I would like to achieve good oil temp control when racing at Hallett Motor racing circuit here in Oklahoma without having to go with aftermarket oil coolers. For reference I'm in the process of REW swap on my rx8. I'm assuming the REW uses the same general oil path as far as in the engine itself, besides turbo feeds/drains.

it’s not specifically the benefit of it, it just handles it that way. It simplifies having a remote setup, which then you can locate one or more filters where you want for convenience and such. On the REW I’m pretty sure you have to use a pedestal block regardless because the filter won’t fit up there on the engine like that. It’s also a different part than the Renesis because the pedestal bolt pattern relative to the two oil galley holes is different, though they work the same in general concept.

Whether the OE coolers are sufficient in your case is going to depend on a lot of other factors because a higher hp turbo setup is going to be generating and dispersing a lot more btu’s into the oil system than an NA Renesis.

Otherwise if you don’t use a header/block like that then you instead need the filter cap adapter with two hoses as per 9krpm’s post and picture at the start of this thread. It’s more monkey motion and messy imo with more potential for leaks to accomplish the same thing.

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