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Old 06-06-2016, 07:58 PM   #113
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I know it costs a lot to keep our rigs going down the road, but I cant understand the desire to "save" money on oil and filters for our engines and transmissions. At worst we change oil once a year and for many things, once every three or four years. Given the cost to rebuild or replace these components, I wont take the chance. Maybe brand-name products are a rip-off but it helps me sleep better.....not to be mean, but someone help me understand the "risk/reward" for doing this....
here's one for,...why not just take the lid off the air cleaner,... you know like how we used to do the chevy 454's.. when we flipped the lid?
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Old 06-06-2016, 08:14 PM   #114
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here's one for,...why not just take the lid off the air cleaner,... you know like how we used to do the chevy 454's.. when we flipped the lid?
You don't want to do that. A "dusted" engine could mean a complete teardown and a big fat sweaty wad of money.
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Old 06-06-2016, 09:40 PM   #115
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You don't want to do that. A "dusted" engine could mean a complete teardown and a big fat sweaty wad of money.
how would it dust???the air cleaner is still on
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Old 06-07-2016, 08:14 AM   #116
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Removing lid from Air Clnr not advised

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how would it dust???the air cleaner is still on
For a 06 WRV Alpine, the uptake for the air cleaner cannister is right behind the right rear wheels. I'm amazed at how quickly my whole engine compartment gets dirty with road grit, including on top / around the AC cannister. Opening the cannister would cause large amounts of grit to be sucked directly onto the filter media, increasing the dp across the media, and challenging the media with a potential grit "leak" directly into the engine.
The increase in dp across the filter media quickly defeats the purpose of increasing the delivery air flow (hopefully without an increase in airborne grit) to the engine; at $85 / filter, or $20K per engine, gain doesn't exceed potential loss, so the idea is a loser.
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Old 06-07-2016, 10:28 AM   #117
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Geeze--the guy is suggesting a test to see if the outside opening is indeed causing a restriction--not as a long-term solution.....118 posts and now we are down to "picking the fly specs out of the pepper." If you like the looks of adding a second louver -- then go for it; if you are looking for a huge increase in performance or MPG--I think you are going to be disappointed--IMHO.....
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Old 06-07-2016, 10:41 AM   #118
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Old Scout, that Filter I purchased was a Fleet guard filter wrapped and sealed. Now who you have to watch is the dealer. There's all kinds of dealers at different prices and which one do you choose. This is getting away from the topic. The filter I purchased was showing a vaccum [ FleetGuard] A Cummins filter. Someone had to fine some of the bad lot of filters. I'm with you on the name brand but who do you buy from. Yes I got it on Ebay and other items.
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Old 06-07-2016, 10:57 AM   #119
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Larry--I have the good fortune of having a great Cummins shop here in SA that I have worked with for years and trust. I may be totally all wet in my thinking but when I can, I buy brand-name products from local vendors that I trust to have fresh stock. There is no guarantee that this will ensure quality but like my fuel stops, I will not go to some "mom an pop" station that may or may not sell enough diesel to keep their tanks clean. Nor do I buy "new" tires if the DOT is over 12 months--even though people say its fine to do so. If I was logging miles like a long-haul trucker, saving money on freq oil changes might make economic sense--but I figure paying a few extra bucks for my annual DIY oil changes wont curtail my overall lifestyle...that's my view, others will, I am sure, have different opinions--good on them....
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Old 10-25-2016, 06:15 PM   #120
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Smile Results of opening interior of Engine Air Intake

After completing the mod to remove the interior "necking down" of engine air intake that my coach was built with, and driving about 5,000 miles with the mod since May 2016, based on computed numbers of miles per gallon (not trying to correct for very limited use of the DG), mpg computed by my ScanGage, and mpg computed by the SilverLeaf, the mod earned me 0.2 mpg increase in fuel mileage. This number is the same increase I observed by removing the flexible boot between the air filter canister and the air intake downcomer (then driving the same road under same load conditions) to determine if the mod was worth the effort. Since I had all the materials to make the mod, and since it took about 4 man-hours to complete, the approximate $120 per year I save in fuel costs for my coach operation made the mod worth while. IMHO, probably not worth having a shop perform the mod, but if you're an avid DIY'r, every little bit helps.
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Old 01-25-2018, 01:21 PM   #121
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Any new updates? I have several maintenance items to do in a few weeks and have been thinking about opening the intake up some. Just wondering if after a year or so of test time how you feel about the mod.
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Old 01-25-2018, 02:49 PM   #122
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... a lot of work to modify, not much pay off......
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Old 01-25-2018, 07:40 PM   #123
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I was the first one to make the double grill intake modification in Aug. 2013. I also added the Turbo exhaust.

In 40,000 miles the engine does run cooler. There is probably some gain in torque and horse power. But I can not feel or see the difference.

I track every gallon of diesel and have to say if there is an improvement it would be only 1 or 2 tenths of a mile per gallon.

I know after making mechanical changes I tend to change my driving style with out really thinking about. This will skew my results.
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Old 01-25-2018, 09:12 PM   #124
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Good insights Gary--best explanation I have heard on "cause and effect" for this particular project...
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Old 01-26-2018, 11:46 AM   #125
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Gary,

What difference in air filter minder reading are you seeing (new filter BEFORE to new filter AFTER)?

As you say, very difficult to quantify power and MPG changes, as there are so many variables. Heck, a tail wind vs headwind across Texas would account for a significant difference in MPG-- probably well more than any change in intake restriction would make.
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Old 01-28-2018, 05:20 PM   #126
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New vents have 5 vanes and WRV removed the 2nd and 4th one to improve airflow. As a test I left all 5 vanes in both vents.

The air filter minder would move up one small amount (same as the stock configuration). I removed the 2nd and 4th vanes on both vents and the minder
stays bottomed out.

The vanes direct the air flow up at a 45 deg angle and then the air must turn around to go straight down. I think this generates a lot of drag. So by removing those vanes some of the air has a better chance of entering straight in and 90 deg down.
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