Terryt
Coeur d' Alene, ID. USA
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Hi:
Has anyone tested Horsepower ad ons on a Dyno?
I read in one of the Hot Rod magazine that the K & N Air Induction kits incresed horse power by 10 %.
Has any one put there rig on a dyno before installing a horsepower incresing devise and than dyno tested it afterwards to see if it really did icrese horsepower.
The cost of these kits run around $300.00-$350.00 dollars.
Thanks,
Terry
Terry M.Trembly
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JustLabs
Washington State
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A K&N might allow 10% more dirt into the engine,but you won't see a 10% increase in HP.
Most quality paper filters in stock air intakes flow more air than the engine can use anyways.
2007 Dodge Ram 3500 SRW,4x4,Cummins 5.9, 6spd.
2007 Keystone Cougar 289BHS Fifth Wheel.
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Keith99RS
Suffield, CT
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JustLabs wrote:A K&N might allow 10% more dirt into the engine,but you won't see a 10% increase in HP.
Most quality paper filters in stock air intakes flow more air than the engine can use anyways.
Most quality paper filters in stock air intakes flow more air than the engine can use anyways.
I beg to differ. On the filter claim you have some merit, on the claim that a stock intake flows more air than an engine can use you are incorrect. The intake tract is generally a compromise between air flow and noise reduction. There is no way 2-3ft of bent tubing with a tiny slit for letting in fresh air flows better than a cone filter and a straight tube. This is also assuming a good kit is purchased and nt on that just sucks hot under the hood air in. The biggest issue with intakes in exhausts in TV applications is not whether they live up to power increase claims, but is the power increase in a usable range. If all the power is made at the top of the rpm range it is of no use really for those of us who tow as we want lower rpm power.
Smoke 05 Titan SE CC 4X4
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brittsnbirds
Missouri
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Terry,
I put the K&N cold air intake on a 5.3 Chevy. Biggest waste of money I ever spent. Would like to part with it if anyone is interested!!
The thing made more noise than horsepower. The noise was to the point of being annoying.
Pat
2009 Chevy Silverado 2500HD Z-71
2009 Forest River Wildwood 27RBEC
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3 Brittany's and a ton of trout rods!
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summithmk
Sparks, NV
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Duramax filter test
2007 GMC 3500
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ib516
Up here!
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Diesel Power magazine did exactly that. They took an otherwise stock 2004 Dodge 2500 powered by the 5.9L Cummins diesel, and put on 5 aftermarket air intake systems on it. They tested each one on a chassis dyno.
Here are the results in full (link), but a summary is below.
"Our results were shocking. We hoped for massive increases over the stock airbox and filter, and we thought this article would read like hate mail to the design team at Dodge, with criticisms about the ugly factory paper filter and seemingly restrictive intake setup full of bends and baffles. Boy, were we wrong.
It turns out the engineers at Dodge did just what they were supposed to when they designed a system that is quiet, very effective at filtering dirt, and provides the maximum airflow that can be used by a stock Cummins 5.9L. Keep in mind the potential for more performance is possible with a modified truck, but all of these intakes eventually narrow down to the inlet size of the stock turbo. Since we learned it's not possible to significantly improve the horsepower over the stock setup (without the addition of a larger turbo, more fuel, bigger exhaust, and so on), we'll concentrate on how each setup sounds, what's included in the kits, the ease of installation, and how the intakes look when you pop the hood.
"Three-Oh-Nine, every time," became a running joke at Westech Performance on test day. Here is a dyno chart with the aftermarket filter results laid over the horsepower reading of the stock Dodge filter. Don't bother trying to tell them apart. The average results of the dyno runs ranged between 308.7 and 310.4 hp, and each filter had at least one run that was in the 309s. In fact, the stock air filter scored exactly 309.0 hp. Torque figures ranged from 566.1 lb-ft up to 573.0 lb-ft, which is not very different from the stock reading of 570.0 lb-ft."
2010 Cougar 322QBS 5er
2007 Dodge 3500 Megacab, 4x4, 5.9L Cummins Turbo Diesel, 3.73, 48RE auto
Hypertech Max Energy 
PICTURES
Prev Trucks:
2002 Dodge 2500, 4x4, Cummins Turbo Diesel, 3.55, 47RE auto
2001 Dodge 2500, 4x4, 360 gasser, 4.10, 46RE auto
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JustLabs
Washington State
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Keith99RS wrote:JustLabs wrote:A K&N might allow 10% more dirt into the engine,but you won't see a 10% increase in HP.
Most quality paper filters in stock air intakes flow more air than the engine can use anyways.
Most quality paper filters in stock air intakes flow more air than the engine can use anyways.
I beg to differ. On the filter claim you have some merit, on the claim that a stock intake flows more air than an engine can use you are incorrect. The intake tract is generally a compromise between air flow and noise reduction. There is no way 2-3ft of bent tubing with a tiny slit for letting in fresh air flows better than a cone filter and a straight tube. This is also assuming a good kit is purchased and nt on that just sucks hot under the hood air in. The biggest issue with intakes in exhausts in TV applications is not whether they live up to power increase claims, but is the power increase in a usable range. If all the power is made at the top of the rpm range it is of no use really for those of us who tow as we want lower rpm power.
CAI Kool-aid...Mmm,Mmm 
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ib516
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The factory air intake system will provide all the air a stock engine can use under any condition, and will also keep out contaminants like dust. Now, if you modify your engine by adding fuel, your engine may need more air than the factory intake was designed to flow, and in that case, a well designed aftermarket air intake might help.
Problem is, so many let in much more dirt than the stock system does. I saw this myself with my previous truck. I had a K&N filter in the stock airbox, and noticed dust clinging to the inside of the air tube upstream of the filter. That was enough for me to remove it.
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Kennedycamper
Algoa, Texas
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Most power adders don't work too well on normally asperated gas engines. Turbo Diesels can see some benifit from a good tuner box. Maybe because of the turbo.
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ib516
Up here!
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Kennedy, it's mostly because of the way a diesel engine works -- it's wide open "throttle" at all times (since they have no throttle), and just add fuel for more power.
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