CFM+ Intake Manifolds - Dodge 5.9L 24V Cummins Diesel 1998.5-2002 - CFM+ 10-002-002

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CFM+ Intake Manifolds - Dodge 5.9L 24V Cummins Diesel
1998.5-2002

CFM(+) PLUS INTAKE MANIFOLDS FOR 1998.5 THRU 2002 DODGE 24V 5.9L CUMMINS DIESEL

CFM+ Intake Manifold vs Stock
Regardless of which tuner, air filter, exhaust system or aftermarket intake you may already have, you need to dramatically increase your air flow. No other aftermarket intake comes close.

Why is the CFM+ the ultimate intake manifold?

Even without a computer it's easy to see why the CFM+ flows so much better than the angular stock aluminum manifold with its nearly 40% flow restriction at the front mounting bolts. (Fig. 1) Made from high strength heat insulative composite materials, the CFM+ intakes offer the highest and coolest air flow available for your Powerstroke engine. Maximum performance and increased fuel economy come from the smooth uninterrupted air flow and composite materials that transfer heat into your engine air 900 times less than all cast aluminum stock or aftermarket intakes.

But why does the CFM+ flow so much more air than the other oversized cast aluminum manifolds in the market and maintain lower air temps?

CFM+ Intake Manifold 1) The very large center section of the competitor cast aluminum manifold may look impressive but it is very bad for flow. The inlet to the manifold from the inter cooler and the outlet of the intake manifold into the engine are very similar in cross-sectional area so when the center section is over three times larger than the inlet and outlet the air flow slows dramatically through this center section. The air flow then is forced to speed up to exit. This causes turbulence in the flow, leading to pressure drop or pumping losses.

2) The competitor's manifold is so oversized in the center section that two of the mounting fasteners which hold the intake to the engine had to be changed to long bolts or studs that must pass directly through the air flow.(Fig.2) This causes tremendous turbulence in the flow leading to additional pressure drop or pumping losses.

3) You can also see in the picture of the cross-section of the competitor aluminum manifold there are two surfaces (Fig.2) protruding down into the flow path that create recesses into the outside surface of the manifold. These pockets allow the mounting nuts to look good recessed on the outside but cause a big problem on the inside where it matters. (Fig.2) These two surfaces protruding into the air flow act to trip up or tumble the air flow. Again this causes additional turbulence in the flow leading to pressure drop or pumping losses.

4) Cast aluminum has a much rougher surface than the advanced technology composite CFM+ manifold. The rough interior surface of the competitor's cast aluminum manifold causes additional turbulence.

It should now be evident why there is a 44% increase in air flow over stock and a 20% increase over the cast aluminum manifold of the competitor. These tests were performed on a SuperFlow model SF-1020 Probench.

CFM+ Intake Manifold Increased Air Flow Changing to the CFM+ over the competitors cast aluminum aftermarket manifold gives almost the exact benefit as replacing your heater grid with a free flow spacer.

5) The volume of air that can get stuffed into the engine is also greatly affected by the density of the air flow. This is why the material the manifold is made of is so important. If the manifold's material acts to insulate the hot under the hood air from reheating the air flow that has just come out of the inter-cooler that is a very good thing for maintaining air density but if the material readily conducts heat such as aluminum that would be bad since the hot under hood temps would raise the air entering the engine since under the hood temps are by definition higher than ambient or outside air temps and heat flow is always from high to low temp. A materials ability to allow heat to pass through it is called its Thermal Conductivity represent by k in engineering equations. Aluminum has a Thermal Conductivity rate or "k" of 236 W/M-oK. The CFM+ composite material's Thermal Conductivity rate is, 0.25 W/M-oK , which is 944 times lower. Also the oversized cast aluminum intakes present more aluminum surface area that absorbs more under the hood heat and transfers it into the air flow.

CFM+ Limited Warranty

CFM+ Intake Manifold Cummins 3 Port Drilled and Tapped Fastcore LLC warrants the replacement of CFM+ Intake Manifolds due to defects in material and/or workmanship according to the following conditions: The CFM+ Intake is warranted to the original retail purchaser only and is limited for one year from the original date of purchase. This warranty is not transferable. This warranty is limited to replacing the defective Intake without charge and Fastcore LLC shall in no event be responsible for consequential or special damages. Labor and transportation charges are not included. Proof of purchase and date of purchase are required to validate protection under this limited warranty. Any Intake that has been modified or the insert threads that have been stripped or cross threaded is not covered by this limited warranty. This Intake is not intended for use in any competitive event or activities. This limited warranty is void where the Intake has been used in any of these ways. Claims must be made through Fastcore LLC and defective part(s) must be returned for evaluation. This warranty is expressly in lieu of any other warranties, expressed or implied, including implied warranty of merchantability or fitness for a particular purpose. This warranty gives you specific legal rights and you may also have other rights which vary from state to state. For more warranty and return information please visit the CFM+ website at www.cfmplus.com and click on the customer service link.