Quote:
Originally Posted by mad_sb
sweet, thanks for doing the testing i was too lazy to do... I even purchased a digital manometer to do the testing with  Now that we have your data, I would like to do a full system pressure drop test with my setup (long tube headers, full exhaust, perrin elbow, modded snorkel, drop in filter, E85) as it should be moving a good bit more air than stock.
What did you guys use for the nipples? |
Nothing too special, you can see one pretty well in the first picture of this post. They are just Nylon Barbed elbow to Male pipe fitting nipples. I drilled and tapped anything that was plastic, and then super glued them in place to further guarantee the seal. When in rubber, I drilled an undersized hole, threaded the fitting in, and then used a pipe fitting nut on the underside to guarantee the seal. I then super glued the threads so I didn't have to worry about them coming loose. The plugs are male plugs, but with a short section of hose. These, for me, are WAY easier to remove quickly, so that's why i made these instead of using a simple cap.
Like I said, nothing special, anyone could perform the exact same tests using the equipment described, and should get the same data. I hope to see what you come up with!
Quote:
Originally Posted by u/Josh
Awesome post.
I would be very curious to see the results of an 'across the filter' test with the filter removed, or replaced with one of the popular aftermarket options.
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With the filter removed I would expect to see a pressure drop of zero at that point, as there is literally no restriction. You can see I have fittings just before and after the filter, so I would be surprised to see anything other than that. I was honestly surprised to see such a low pressure drop for a stock filter. Now that I have an aftermarket filter I plan on doing the same pressure drop test across the filter, so I can see exactly what the difference is. Hopefully this will help me equate the decrease in pressure drop to an actual real world horsepower gain. I just need the weather to cooperate again.
Quote:
Originally Posted by diss7
I'm grateful for the new fad of entering a TL;DR comment in posts lately. It give you the info you need, and if you want more, its there as well.
Well done ft86club. oxoxo
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I could be WAY off, but I think "TL;DR" originated form the website "Reddit." As the ability to increase the availability of information increases, the amount of time we all have to consume it decreases. We all need to figure out how to be less busy!
Quote:
Originally Posted by FrsDuke
I can't wait until people too lazy to read an excellent piece of engineering discovery like this become too lazy to breath.
Warning label on a shower cap reads, "one head per cap only."
My wife's flat iron (it's for hair straightening) says "do not flat iron eyelashes."
Do we really need to slow down for these people?
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Haha! When I was writing this piece, I couldn't help but see the word count increase to a pretty unacceptable number. Few people would want to read a 2800 word wall of text and I knew that. The idea was to make this information accessible to the greatest amount of people, regardless of how much they actually care about the technical details. Part of being a good writer is being concise, and this piece is not, but I didn't want to leave anything out :P
Quote:
Originally Posted by Turdinator
@ GrimmSpeed I am being nit picky here but I don't suppose ypu did a snorkel to atmosphere comparison? More specifically the atmosphere near the snorkel opening. |
Thats not nit picky at all. One of the first things I did was run a hose in the front air damn near the snorkel, and test to the throttle body. The results were the same as when using the fitting at the front of the snorkel, which goes to show that I could have just taped some hose down in that area instead of adding a fitting to the snorkel.
Thanks to everyone who took the time to read this, its a long read, but hopefully it's as interesting to everyone else as it was to us.
Chase
Engineering