One filter option for the CVT
I decided to mount a CVT filter in the bed but needed to plumb to it. This is how I did mine.
First, you will need:
2-3” silicone 90s. I bought two of these.
http://www.ebay.com/itm/281952541871?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AITTwo connectors. One to join the two 90s and one to serve as a mount for the filter. I bought these.
https://www.amazon.com/gp/product/B0089DZQJA/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1http://www.pvcfittingsonline.com/3-schedule-40-pvc-pipe-inside-connector-s0302-30.htmlOne piece of 1/8” black ABS to make the cover blank out of. I bought this one but a smaller one would be better.
https://www.amazon.com/gp/product/B0007WTF02/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1 And you will need 4 clamps that will fit 3” pipe.
For my application, I needed to place a 6” filter at the far left side of the bed so I needed the center to be about 3.25” from side of the bed. If I was going to just place a tight 90 on the port and go up with a snorkel with a filter on top, I would have a little more room and wouldn’t have to cut all this so short. You decide what you want first. This “How To” will be for my application.
First dissemble and put the CVT intake tube where you can make your first cut. Cut it so there is about 2-times the thickness of the clamp left on the bottom. The cut will be about here:
The two 90s will need to be cut down to their minimum. This will be so there is just enough room left for the clamps. Be sure to maintain the 90’s end cuts. Then you will need to cut about 1/3rd off the aluminum connector as the 90s are now very short. Put it all together and it will look like this
Leave it a little loose and slip it back into place. Rotate the fittings to position it. Make sure the end 90 sets flat against the bed plastics and the tube is in the CVT boot on the engine..and the hanger pin is installed. It will look something like this.
You will notice that the 3” pipe is making contact with the inner plastic so once everything is positioned carefully remove the system again, tighten all clamps well. Then going by the angle mark on the back side of the CVT pipe, compress the connector in a vice or clamp into an oval making the top slightly tighter then the bottom. Check the fit and if necessary re-adjust. This view shows the flat angle mark on the pipe next to the 90.
Reinstall it completely and check that it is in a relaxed state and laying flat against the bed plastics. Then draw around the 90 against the bed to mark where the hole should be. Remove the system again. Then with your 3” hole saw only, slip it behind the plastic, line up the teeth to the marks and rotate to make a mark with the center bit. Then with a small drill bit, drill through the mark so you know where to center the hole saw on the bed side. Drill your hole. Yes, now you are committed! You have hole!
Clean up the hole so the PVC connector fits easily. Reinstall the system and insert the PVC connector through into the 90 and clamp well. And install your filter. I’m just going with my 6” mushroom with the Unifilter and outerwears prefilter for now. Should look something like this.
Now to seal-off the old access. Using the old door as a template, trace it out on your ABS sheet to include the legs and an extra long tab to fill in where the lock was. Cut out then file, grind or sand as needed to fit all the way down. Heat up the long tab and custom fit it to the lock hole. This will take some time as it has an odd angle and bends. Then using the screws and screw holes that the old boot used, drill and mount the blank. Then with RTV, seal off on the back side.
It will look something like this.
Complete reassembly
That’s it. Good luck with yours.
UPDATE 11/21/16:Can't leave well enough alone. Upgraded the filter to a coned gauze filter like the intake...except slightly smaller. Better and longer consistent flow and although like the engine's intake, both are dry-type I am using fabric-filter spray oil on both for the best filtration possible. I will continue to use the red outerwears water resistant prefilter only because it fits...and I have two thanks to Jogon30 for giving me his after he traded in his Z. Some pics:
UPDATE: 6/17/17After finally putting this to the test for a week in very dusty conditions I can safely say: I still believe that the reduction of dirt and dust through the CVT system has positive effects on consistent performance and reduction on wear, however this location may not be the best location for the intake and filter as it only took about 30 miles of dusty roads to reduce airflow through the filter causing CVT temps to increase. The actual intake either needs to be higher...or more forward to get enough time between filter cleanings. I was thankful of two things on this ride.
One- that I installed a CVT temp gage that told me when the air flow was down and temps were climbing before loosing a belt and
Two- that I installed a dry-type filter that could just be popped-off, tapped out on a rock and reinstalled. The amount of dirt and dust it stopped was nothing short of amazing. I would guess in all three cleanings somewhere about a 1/4 of a one gallon paint can of dust was captured between the filter and what was on top of the prefilter. But..the location in the bed is in heavy dust all the time and would have been less if it were somewhere else. The engine air's intake first filter was also packed full but it didn't effect it's running. It may be snorkel-time just to get the intakes out of the main dust cloud.