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Flow test - Tymar vs. AIS Box?

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Old Mar 21, 2004 | 10:59 PM
  #1  
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Flow test - Tymar vs. AIS Box?

Has anyone seen any actual numbers on Tymar intake vs. the Ford AIS? I have the AIS but would switch to the Tymar if it outflowed the AIS. I'm still kicking around Predator tunes and would like to lower my EGT's a little more. I'm currently using the 85HP tune, but it smokes quite a bit and the EGT's still get up there pretty darn fast! Thanks for the help.
 
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Old Mar 22, 2004 | 03:01 AM
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What have you got for a downpipe and exhaust? That would probably be your best opportunity for improvement. The TYMAR and AIS both flow more air than your truck can use.
 
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Old Mar 22, 2004 | 05:57 AM
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I'm running a a stainless Flowmaster system with 3.5" down and 4" to the back.
 
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Old Mar 22, 2004 | 07:44 AM
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I don't have answers to your question, but I will say the Tymar is a superior system. I just installed mine and IT really makes a difference. Very satisfied customer. Dale is a super nice guy.
 
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Old Mar 22, 2004 | 08:25 AM
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The Tymar will flow more simply because it's an open element setup. You don't need more air than you get with the AIS unless you have a VERY heavily modded truck.
 
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Old Mar 22, 2004 | 08:34 AM
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I'm running the Diablo Predator 85HP program. It's about what I want as far as HP goes. I'm leaning towards the Tymar. I'm sure that I can sell the AIS box to someone that has the old stock box and wants better filtration and flow. I just don't know if it's worth the money to make the swap. Thanks for the help.
 
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Old Mar 22, 2004 | 11:25 AM
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Is your truck still under warranty? If not then go with the Tymar. My truck is under warranty for another 50K so I went with the AIS intake.
 
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Old Mar 22, 2004 | 05:29 PM
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Actually, it is under warranty. I found some other info. from The Diesel Stop that pretty much states what Quadzilla and Johnsdiesel said, so I think I'll save the money and stay with the AIS. Thanks for the help guys. It's appreciated.
 
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Old Mar 22, 2004 | 06:30 PM
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Will the Tymar intake void the warranty? One of the mods I have been planning to do is to install a new intake on my truck and I was leaning towards the Tymar. My truck has 53,000 on it and have quite a bit of warranty left so I definantly don't want to do anything that will jeopordize the warranty.
 
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Old Mar 22, 2004 | 06:44 PM
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FWIW, and to confuse you all the more, I made my own tymar style intake, identical to the tymar, and the only thing I gained with the Tymar style was noise.............

The noise combined with a worrisome open element, that anything could spill on, I swapped to an AIS intake, and actually it seemed like my truck gained back a little torque not to mention a huge decrease in noise.

I am sure either one would perform great, matter of choice, but for me the AIS suited my needs perfect. I am just skeptical of the open element, and I like a stock looking engine bay

regards

Eric
 
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Old Mar 22, 2004 | 07:40 PM
  #11  
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I was actually going to do the Tymar intake myself until I was told by a gentleman here that it would most definitely void the warranty. But because it's Ford's name on the AIS intake I'd be safe taking that route.
 
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Old Mar 22, 2004 | 07:47 PM
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Personally, I would have to say that the Tymar flows more air just based upon the AIS enclosure, intake horn and the filter design and medium.

The filter medium resembles the honeycomb pleating of a carboard box stacked upon each other in a circle. Looks very dense and the filter minder definitely max's out under heavy acceleration.

I have heard that the spring in the AIS minder is a bit weak.

But, there is minimal noise and the kicker of course you've all been waiting for; DOES NOT VOID WARRANTY.

(but all my other mods will,............hehehehe)
 
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Old Mar 22, 2004 | 09:21 PM
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Yeah, the filter media in the Donaldson looks like a brick! It just doesn't seem like it would flow all that great, but I guess it's ok after all. I have too much time on my hands........and when that happens I tend to want to spend money on the truck. Addicting, all that HP!
 
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Old Mar 22, 2004 | 09:37 PM
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What does the AIS Donaldson filter claim for filtration? I know the Donaldson filter the Tymar uses is 99.9%. Is the AIS any higher?
 
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Old Mar 22, 2004 | 09:51 PM
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Johns, You've seen this before but for those that haven't. Copied from a Diesel Stop Forum thread:

"Hello Folks, Please allow me to introduce myself. My name is Jordan Flagstad, I am a Senior Automotive Engineer at Donaldson Company in Bloomington, MN. Donaldson designed and manufactures the new AIS for the Ford 7.3 liter Turbo Diesel pickups that looks to be the focus of discussion along this thread and a couple others in this forum.I was asked to join this forum to act as a technical laison (Talk Shop) with you folks concerning the new AIS for the 7.3 liter Power Stroke. I must say, I graciously accepted this assignment as being a turbo diesel pickup owner myself I think I share a lot of interests here.OK, enough about me....Let's talk about this new AIS. With this new system, you are putting "Big Rig" performance under the hood of your pickup. This new system offers 3x more dust load, lower restriction and newer technology than the original system. Some of the concerns / questions I have read in this forum are:* Is the restriction of this new AIS higher than the standard system? The answer to this is no, the new systems restriction numbers are considerably lower than the standard system.* Does this system provide a longer service life than the standard system? Yes, the new AIS has a service life on the order of 3 times the dust loading capacity of the standard system.* What is the filtering efficiency of the new AIS? The filtering efficiency of the new AIS is 99.9%+. The system will load approximately 900 grams (just about 2lbs.) of dust to the trip of the Filterminder. With a 99.9% efficiency rating this would mean that less than 1 gram of dust would pass through the AIS to the clean air side. Competing with this new AIS on the market today, are various aftermarket induction systems that utilize washable filters. I have tested some of these filters and found their filtering efficiencies to be as low as 70%. This would mean on a 900 gram dust load, 270 grams (just over 1/2 lb.) of dust will be ingested into the engine. Now this would be devastating to any engine and more so to an engine with a 100,000+ rpm balanced turbo charger.* It looks like the Filterminder trips at a lower pressure, Is this true? This Filterminder is specially calibrated for this system. The Filterminder is calibrated to trip when the restriction at the outlet of the cover reaches 25" H2O. The Filterminder is not located directly in the outlet of the cover, so when tested with a vacuum pump, it may trigger at a lower pressure. As I stated above, it is calibrated to trigger when the pressure in the outlet is at 25" H2O, although the pressure in the location of the Filterminder may be somewhat different than that.* Is the system worth the money? The answer to this question is really up to the person who owns the truck. In my own opinion, this system is a great bargain being that it was custom engineered for the vehicle, it is injection molded, and employs some of the best cutting edge filtering technology available today. It is also less expensive than some of the aftermarket induction systems mentioned above. Hopefully I have answered most if not all of the questions I have found on this forum. In the future, I plan to visit this forum a couple times a week to check in and see if I can answer any more questions you may have.
Thanks,Jordan S. Flagstad Senior Automotive EngineerDonaldson Company, Inc."
 
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