Race Engine Forum UK

Hi all,

I'm currently in the process of sourcing parts for an Oil Filter Relocation kit.

I've found a place in the US that do a very nice CNC machined block off plate and relocation plate, and also come with -10AN fittings which is what I was after as I already have the pipe and connectors.

My question really is about oil filter orientation. The stock location is almost verticle, and right next to the Turbo downpipe. This means that the oil temp sensor gets very hot from ambient heat, and it becomes a messy job when its time to change the oil. So, is it ok to mount an oil filter at any angle? Or is it best to have it at a slant like: \ for example as opposed to I

I am doing this as a multi purpose exercise, 1 - to make filter changes that little bit easier and a lot less messy, 2 - to take the oil temp sensor away from the hottest thing in the engine bay so I can have accurate readings, which will be more important with my new set up. I would be very interested in hearing other peoples opinions on this.

One other things that I'm having to do as part of this is change the filter that will be fitted when its relocated. This is due to a change in thread. I currently have the standard Toyota 3/4-16 thread, but the relocation kit will be M20x1.5

One thing that is standard in the Toyota filters is a relief valve. So I'm needing to find an M20x1.5 threaded filter that has this relief valve built in, its a long shot, but does anyone know off the top of their head what might carry this set up?

Thanks in advance,
Ant
Toyota MR2 - Currently @ G&G Motorsport

Purolator pt no. 27823 as used on Alfa 145/146 TS 16v should do, M20 x 1.5, 100mm tall x 76 dia, same body as the ones I sell for race apps.

According to my data is has the anti-drain back (anti-syphon) rubber valve in the top just below the array of feed-in holes, so can be mounted upside down or any orientation. Check it physically before you buy.

Hope that's a start,

G

Thanks Guy, Would you be able to let me know what price you supply these at please as I've now purchased the relocation kit, so will in time need filters to match.

Thanks,
Ant

Ant, call me if you want me to get some, because I don't carry that stock and may have to order 4 or more. Discussion of price is not allowed here, even for me. That way there is no commercial bias,

GC

Will do Guy. I'll probaly leave it till tomorrow as I have a few calls to make so gonna do them all in one hit.

Thanks,
Ant

You can mount the filter at any angle you like. I would advice a filter with an anti drain valve.

I picked up on you advising larger oil filters before Guy. So do you generally recommend larger filters for competition use ? Would the reason being the larger filter surface area, therefore the bypass valve opens at a higher pressure, meaning more oil is actually filtered at higher revs ?

I'm always interested in learning more about the optimum competition setup.

thank you
sean

The filter position is just a matter of choice. However, in the vertical/slanted position (methinks) there's less chance of making a mess during oil/filter changes.

There's not a single MR2 in my neck of the woods so I don't know how crammed it is under the bonnet, but if there's enough room in there you could always fab something up to mount the filter bracket to the firewall/fender/etc.

You can see the oil cooler/current location just next to the yellow dip-stick in this picture. However, the engine is undergoing some changes, i.e Bigger turbo, downpipe, etc. I've never been happy with the ambient heat that is picked up in this location, so I'm going to move it to more than likely the side of the suspension turret, this should give it a little air flow from the side vent too.

There ain't that much room under the bonnet, is there?

The suspension turret might be your best bet, maybe you could fasten the bracket to two of the McPherson strut studs? Just a thought.

The engine bay should look quite different when G&G Motorsport have finished in there. Also there is an addition of a Strut brace going fron the inner studs of the shocks. I'd have to measure up to see if there is enough thread for me to fit a bracket under the studs, but its definately an option.

Alternative to that I might get a bracket welded to the strut brace mounting plate.

I've just had a thought about this.

Would it be better to mount the filter up high or low? I'm guessing that if its up high it will all drain out to the sump, but if its down low, then the filter will hold oil, and so will the pipes from where they start to run downwards? Is this the case?

If my thoughts are correct, then a low filter would mean messy changes as you'd have oil flow out from the pipes after the filter is removed. Am I right, or am I having a moment?

Thanks,
Ant

No, you're right ..

Put it on the inner wing near the level of the cylinder head where you can get to it easily! Modern pumps can easily cope with that.

The 'rule' with oil system accessories is of course as close to the pump as possible and well away from the exhaust, but remote filters are used mainly for convenience so there is that small 'human/practical' aspect to consider too!

GC

Right think I've gotcha. So doing it that way the lines would drain back, but the filter will stay pretty much full up, but would allow me to pre-fill the new filter on oil changes etc. Sounds pretty much what I'm after.

You must use a filter with an anti-syphon valve - read my earlier post, otherwise the lines will drain down every time you turn off the engine.

G