Loading...
pmt diesel performance header
Site Updated:
  Advanced Search
Items in the shopping cart:0
Current total:$0.00
Search:
pmt diesel performance header
pmt diesel performance header
home about us contact us basket checkout
| Log In / Register | | Click here to shop by manufacturer | Can't find what you're looking for? | Sitemap |
1-800-768-2447.

Diesel Performance

Shop By Product


MVP Authorized Dealer

diesel performance parts authorized dealer

sema member


Official PayPal Seal

Left menu space
Left space
 
CFM plus CFM-10 Dodge Cummins Air Intake



CFM + Air Intake
Dodge 5.9L Cummins
1994 -2007



DISCONTINUED


Sku # : CFM-10
Our Price :
$339.95
Year/Color
:
Qty
:


Product Detail

1994-1998 “Not for use on models with Hydro Brake Booster.”

Why is the CFM+ the ultimate intake manifold? 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. 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)



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?



There are a number of reasons we will discuss: 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.



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.

Be the first to write a review.

  [Write Review]

No customer review found.

Recently Viewed Items




CFM + Air Intake
Dodge 5.9L Cummins
1994 -2007

$379.95

Social Bookmarking

Add to Google
Add to My Yahoo!
Add to MSN
Subscribe with Bloglines
Subscribe in NewsGator Online
Add to del.icio.us
Add to reddit
Add to LookSmart Furl
Add to Blogger
Add to Facebook
Add to BlinkList
Add to FeedMe
Add to Spurl
Add to Netscape
Add to Ask.com
Add to Live
Right right-line
| Custom Programming | ECU Locations | External Directory |

Copyright © 2017 Pmtdiesel.com. All rights reserved.
No part of this web site may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying or
recording or by any information storage and retrieval system, without written permission of Pmtdiesel.com.

PerformanceCartz.com - Custom Golf Carts of South Florida