Scotty Ram Air III with Uni Filter

[DJaquez]

I have been talking to Dave about setting up my 2004 2500 HO with the following items:



Scotty Ram Air III (With Uni Filter)

TAG III

Aero turbine

4" Banks Aluminum exhaust



Questions: What do you know about the UNI filters? Are they good or are they like the K&Ns that fill us with dirt?



Is this a good combinations or snake oil? What would you change? Why?



I feel that Dave is trying very hard to help me, just want to make an informed decision.



Thanks,

Dan

 

[R.M.THOMPSON]

Will these components reduce EGT's , yes. Will they add power , yes. Will engine life be extended , probally. Now here is the big question is two thousand dollars going to give you the return you are looking for ? P. S. UNI filters have a stellar reputation and are user servicable so filter cost will be lower in the long run. What is the gole you are looking for ?

 

[Briman]

Get it all except the TAG. I used a tag III for a brief period (two days). EGT's were higher. Power was off. If your going to invest in a nice air fiter and exhaust it does not make much sense to stuff something as restrictive as the III in your intake pipe (Have you seen the III). I have the Scotty RAIII with UNI and Banks stainless 4" exhaust. I feel that my input is valid. The tag III will not add power or lower EGTs with the other items in your list. I will admit that I am running the B Dog Power Pup on performance mode. That difference may exaggerate the tag's negative effects, but it still is what it is.

 

[EMD-Run8]

I don't have gauges as of now but the difference in turbo spool-up is very noticeable with the Banks/Aeroturbine. I would not use the Aero in conjunction with the Banks muffler. To me it just isn't necessary and Ohhhhh-man does it sound better with just the Aero! I put straight pipe where mine was and put the Aero just behind the downpipe flange (as far forward as possible). Once I get gauges I will verify for myself whether or not the TAG works as advertised. I'm inclined to think it does since the turbo no longer "studders" when it spools up. By that I mean that with the stock exhaust the turbo would kind of drag initially when a load was put on it and it sounded like it was skipping or something. This could be just due to the 4" exhaust but I think it's a combo of both. The turbo spools up much sooner and with total ease. It sounds sooooooo fine whistlin' out the exhaust tip too!! Ask Tman how he likes his Aeroturbine.

 

[LightmanE300]

In my opinion, both the intake and exhaust will help with EGT's. It seems the TAG to me is a cute little device that probably doesn't do much, but I have no experience. I also will contend that nothing on your list will truly add power. It may sound louder or seem like it's spooling better, but I dont think realistically you would see much change on a dyno or in real world driving. I know my truck 'seems' to run better with the scotty and exhaust, however I'm sure it's just mental. There are certainly no substantial power gains, that is for sure. Also FWIW, the original AFE gauze type filter that came with my Scotty3, which is similar to a K&N, netted me a silicon number of 5 after 10,000 miles. That is excellent. The reports of K&N's letting through 'tons of dirt' are grossly exaggerated. I'd be surprised if the uni did better.

 

[Car_nut57]

In my opinion, both the intake and exhaust will help with EGT's. It seems the TAG to me is a cute little device that probably doesn't do much, but I have no experience. I also will contend that nothing on your list will truly add power. It may sound louder or seem like it's spooling better, but I dont think realistically you would see much change on a dyno or in real world driving. I know my truck 'seems' to run better with the scotty and exhaust, however I'm sure it's just mental. There are certainly no substantial power gains, that is for sure. Also FWIW, the original AFE gauze type filter that came with my Scotty3, which is similar to a K&N, netted me a silicon number of 5 after 10,000 miles. That is excellent. The reports of K&N's letting through 'tons of dirt' are grossly exaggerated. I'd be surprised if the uni did better.

The exhaust and Scotty do lower exhaust gas temperatures and add a small amount of power to the truck. The TAG is all about making the turbo operate more efficiently to help increase fuel mileage and enhance turbo performance by providing a smooth directed flow of air into the turbo. Last week a tech at one of the larger Dodge dealers tested the TAG-III on his own truck. On the dyno no change in hp or torque which we expect as the dyno only measures a full throttle response not effects at partial throttle or towing conditions which is where the TAG has benefits. An emissions test was conducted and showed a good reduction in smoke. He told us the truck definitely has a noticeable increase in power on the highway and turbo spool up is faster and he gained 2mpg using the TAG-III. The TAGs are not intended to be power producing parts and results using them does vary which is why we do not make any specific claims about them, we only pass on the results which are reported to us or we have experienced first hand. For those interested in the TAG, you might also take a look at page 117 in issue 46 of the magazine and visit our website.



Regarding air flow and filters for the Scotty RA3, the 2-stage foam was introduced for these units to increase the dirt stopping ability of the units. It was a pleasant surprise when it also out performed the previous filter systems. For those who already have the Scotty systems, its a good idea to upgrade to the 2-stage foam units.

 

[Greg Boardman-RIP]

Car Nutz,



Tell me that doesn't sound like an add for the filter?

 

[Bob4x4]

Show us how a uni-filter filter out performed an AFE... ... ... . numbers,oil analyisis,hp?



Bob

 

[Car_nut57]

Sorry, I don't have numbers, oil analysis etc. What I can tell you is we have been using cotton filters and the UNI 2-stage foam filters on our own rigs and customers rigs and you can visibly see the differnce in dirt stopping in the intake, especially on the Fords because they have a CCV in the intake which makes it oily and the dirt that gets by the filter sticks to it. As for performance we could feel the difference in Jeff's 2004 and see the EGT drop with the foam verses the cotton filter in the Scotty RA3.



Its not our test or our site, but if you go to www.trueflow.com they have a short video test of several types of filters which shows foam to be one of the best filters for stopping dirt.

 

[Gypsyman]

I would like to see just one solid scientific theory that shows how a TAG could increase fuel mileage! If you have boost and it's the same before and after how on Gods green earth could you get increased fuel mileage from a smoother inlet flow to the turbo. I can see how the turbo may give increased cfm output per revolution but I think that it would be so small as to be unmeasureable. Any scientific theory would be greatly appreciated, just no sales bs. I've heard all of that...



Richard

 

[R.M.THOMPSON]

I will not attest to a horsepower/torque claim for any of the specific devices or systems listed in this thread , although an interesting observation I made everyone should be aware of is on my previous 03 555 I don't recall a plastic three blade inlet guide vane assembly in the intake elbow that connects to the turbbo. My 04. 5 600 has this device ! If my memory is coorrect in this matter , then someone at Cummins or DC thought or proved that guiding the intake flow at the turbo has merrited a positive effect. Now, I am inclined to believe that there is an efficiancy component associated with some devices listed in this thread, and will take my share of eating crow when it is proofed.

Which it will be in time as I hope that sometime in the near future someone will devise a common method for efficiancy testing and not just total energy(hp & tq). ie. . fuel consumed at usual circumstance conditions. We certainly have a round-a -bout way of getting there with the dyno's in use today. This brings me back to my original question to DJaquez, What is the goal(not gole ) are you looking to achieve, 1) total power rise of ____ :--) 2) mpg increase of ____ 3) cool factor add of______ or all three ????? BTW , is there a dyno set up somewhere that can measure how much fuel is burned, at say 25/50/75 hp output, I know this does not take actual vehicle wind drag into consideration with current dyno's, but at least it is a start. Tuning for efficiancy is so hit or miss, and someone could make some decent money doing(proving/certifying) it in my opinion.

Don't hold back :-laf

Mark

 

[jwilliams3]

Those air guides on the OEM intake hoses are for noise reduction.

 

[d.miner]

DJaquez, I've tested early versions of the TAG I, II, and III, all of them improve what you'll feel as you drive. Because of the different designs, they do different things.

I was asked to test an early version of the TAG III over a weekend and I noticed an improvement in bottom end torque and throttle response up to 2000 rpm.



As soon as I returned the TAG III, it went back into the 2004 it came out of. Jeff works with Dave and had really enjoyed the difference it made in his truck and was anxious to get it back in. To me, that says a lot.



It looks to me that the items you're considering will improve the efficiency of your truck, better air flow in, more efficient use of the turbo, easier flow out and a aero turbine that has a scavenging effect. These aren't hot rod items.



My opinion only, I've always had a good experience with Diesel Power Products and been treated well.