CFM+ Intake Elbow - Dodge Diesel - Diesel Truck Resource Forums



Performance and Accessories 2nd gen only Talk about Dodge/Cummins aftermarket products for second generation trucks here. Can include high-performance mods, or general accessories.

CFM+ Intake Elbow

Reply
 
 
 
Thread Tools Search this Thread
Old 08-20-2017, 11:52 AM   #1  
Registered User
Thread Starter
 
Desert5600's Avatar
 
Join Date: Aug 2017
Location: Nevada
Posts: 134
CFM+ Intake Elbow

Searched, but didn't find much recent info. What is the current thinking on adding this to the signature truck? Mainly looking for improvements in spool up, EGT, throttle response.

Thanks...
Desert5600 is offline   Reply With Quote
Old 08-27-2017, 04:30 PM   #2  
Registered User
 
SIXSLUG's Avatar
 
Join Date: May 2006
Location: Pacific NW, B'ham, Kalispell MT
Posts: 5,039
The cfm is dictated first at the turbo inlet, not sure if the intake horn would affect much unless cfm was increased by enlarging all the pre- orifices leading to it...other than an improved con tour over the stocker...
SIXSLUG is offline   Reply With Quote
Old 08-28-2017, 10:37 AM   #3  
Registered User
Thread Starter
 
Desert5600's Avatar
 
Join Date: Aug 2017
Location: Nevada
Posts: 134
Quote:
Originally Posted by SIXSLUG View Post
The cfm is dictated first at the turbo inlet, not sure if the intake horn would affect much unless cfm was increased by enlarging all the pre- orifices leading to it...other than an improved con tour over the stocker...
By CFM+ I meant the brand of intake horn at the intake manifold, not Cubic Feet per Minute flow.

While forced air induction overcomes flow restrictions to a degree, any improvement downstream of the force can result in an improvement. The CFM+ has had good results on the dyno. I was just wondering if anyone had real world application experience with the CFM+ intake horn.
Desert5600 is offline   Reply With Quote
Old 08-28-2017, 11:16 PM   #4  
Registered User
 
SIXSLUG's Avatar
 
Join Date: May 2006
Location: Pacific NW, B'ham, Kalispell MT
Posts: 5,039
Try running around the yard and breathing thru a drinking straw. If your CFM part cant get fed up to its max flow, you won't see/feel much performance improvement...it takes a string of upgrades to actually benefit from a larger intake horn.
Usually a larger or multiple turbo set up and a throaty intercooler and larger diameter intake path will really make that part shine at the dyno.
SIXSLUG is offline   Reply With Quote
Old 08-29-2017, 09:51 AM   #5  
Registered User
Thread Starter
 
Desert5600's Avatar
 
Join Date: Aug 2017
Location: Nevada
Posts: 134
Quote:
Originally Posted by SIXSLUG View Post
Try running around the yard and breathing thru a drinking straw. If your CFM part cant get fed up to its max flow, you won't see/feel much performance improvement...it takes a string of upgrades to actually benefit from a larger intake horn.
Usually a larger or multiple turbo set up and a throaty intercooler and larger diameter intake path will really make that part shine at the dyno.
Depends on the pressure of the air in the straw. If I had a compressor pushing air into me, I'd need a wastegate to control the flow.

Everything along the air's path helps. Right now, I've seen dyno results and am looking for some anecdotal, specific application data. Thanks for your opinions, though.
Desert5600 is offline   Reply With Quote
Old 08-30-2017, 05:30 PM   #6  
Registered User
 
SIXSLUG's Avatar
 
Join Date: May 2006
Location: Pacific NW, B'ham, Kalispell MT
Posts: 5,039
Good point!I've always imagined getting my truck maxed out on intake and output just got other things in the way...

Your's looks like it might benefit from some more flow, maybe Katoom or one of the other performance guys will cough up some input.
SIXSLUG is offline   Reply With Quote
Old 10-12-2017, 05:56 PM   #7  
Registered User
 
Rockyhud's Avatar
 
Join Date: Jul 2003
Location: Just outside Falcon, CO
Posts: 207
A few years ago I was fortunate to find and download an article that was originally authored by Pete Tomka of Performance Systems Manufacturing and published by Turbo Diesel Register in Issue 56, dated May/Jun/July 2007, that was all about testing air intake systems - cold air systems, larger air horns, high flow filters, etc. - to see if there really is any benefit to "upgrading" to one of the many aftermarket offerings. Without going into all the details, the conclusion was that increasing the exhaust (4" +) and a higher air flow filter will net you the most power increase you're likely to see from these types of components, even measured on a dyno. The claims about getting 10-20 HP increase from many items were found to be dubious as several test factors like how the tests were run (time in between test to cool to a baseline temp, etc.) highly influenced the results. The tests also proved out that you get more bang for the buck, once you've opened the intake and exhaust, by improving on the turbo rather than spending hundreds of $$ on intake systems. Wish I could provide a link where I found this but I just don't recall now.
Rockyhud is offline   Reply With Quote
Old 10-12-2017, 08:04 PM   #8  
Registered User
Thread Starter
 
Desert5600's Avatar
 
Join Date: Aug 2017
Location: Nevada
Posts: 134
Good stuff. Thanks.

I have a cold air intake with an R2C Black Hex filter, a 4 Magnaflow, mandrel bent exhaust, a Smarty and a boost elbow. The power increase is noticable and the mileage is consistently up about two MPG. The FASS Titanium assisted a bit, too.

Guess Ill hold off on the intake elbow, even though one would think that would make a difference while complimenting the other mods.
Desert5600 is offline   Reply With Quote
Old 10-13-2017, 01:24 PM   #9  
Registered User
 
oliver foster's Avatar
 
Join Date: Dec 2008
Location: vermont
Posts: 3,592
Quote:
Originally Posted by Desert5600 View Post
Good stuff. Thanks.

I have a cold air intake with an R2C Black Hex filter, a 4 Magnaflow, mandrel bent exhaust, a Smarty and a boost elbow. The power increase is noticable and the mileage is consistently up about two MPG. The FASS Titanium assisted a bit, too.

Guess Ill hold off on the intake elbow, even though one would think that would make a difference while complimenting the other mods.
I bet most of that is due to the Smarty.
oliver foster is online now   Reply With Quote
Old 10-13-2017, 05:40 PM   #10  
Registered User
Thread Starter
 
Desert5600's Avatar
 
Join Date: Aug 2017
Location: Nevada
Posts: 134
I think so, too, even though the boost elbow added more boost.
Desert5600 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
S&B Cold Air Intake, Scoop, Intake Elbow, and Heater Delete Block Install and Review Taquache 3rd Gen High Performance and Accessories (5.9L Only) 21 06-24-2012 03:11 PM
CFM elbow; anyone had problems? Dieselnick 12 Valve Engine and Drivetrain 5 02-17-2008 02:27 PM
CFM+ carbonfiber intake elbow?? CTDowerTN 3rd Gen High Performance and Accessories (5.9L Only) 18 01-11-2007 10:16 AM
CFM intake horn? blackdevil 3rd Gen High Performance and Accessories (5.9L Only) 21 10-10-2006 03:14 PM
CFM+ carbon intake?? CTDowerTN 3rd Gen High Performance and Accessories (5.9L Only) 2 09-29-2006 03:46 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 11:52 AM.


Copyright 2017, DieselTruckResource.com
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.