Riffraff high flow cvd fitting - Ford Powerstroke Diesel Forum
Please Visit our Site Sponsors
Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
LinkBack Thread Tools Display Modes
Old 06-25-2014, 08:04 PM
Powerstroke.org Rookie

Join Date: Oct 2013
Posts: 14
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Riffraff high flow cvd fitting

Has anybody heard of the riffraff high flow cvd fitting? I just saw it there on the website. Seems like a quick, cool little mod to increase fuel flow. It replaces the stock check valve. Anybody have experience with this? And, where is the check valve I'd be removing? Just wondering how easy or difficult access may be. Usually they have pretty clear instructions on their website but, I didn't see any for this mod. - thanks!
Reply With Quote Quick reply to this message
Sponsored Links
Old 01-13-2015, 10:20 AM
Compression Ignition Addict

Join Date: Jul 2014
Location: Faulkton, SD
Posts: 167
Thanks: 1
Thanked 4 Times in 4 Posts
Feedback Score: 0 reviews
Most people remove and drill out the fitting, this just basically costs you the extra 30$, but for the peace of mind you have a new fitting with no chance of shavings falling into the fuel rail. Not necessary but a nice touch if you have Stage II&III injectors.
Reply With Quote Quick reply to this message
Old 01-13-2015, 07:04 PM
Compression Ignition Addict

Join Date: Oct 2011
Location: Chico, California
Posts: 3,796
Thanks: 17
Thanked 121 Times in 115 Posts
Feedback Score: 0 reviews
they provide a little better throttle response. didn't notice much of anything else, but its nice knowing there is a little less restriction.

you don't have to drill out the stock fittings. you just take a snap ring out and the guts come out. but I like just buying new fittings that are ready to go.

use some locktite on the part that threads into the heads.

they aren't terribly difficult to install. the front fitting is more difficult. its easier if you take off the alternator and use along wrench and angle it just right.

then for the rear fitting reach under the turbo pedestal with a wrench to loosen the back fitting.
Reply With Quote Quick reply to this message
Old 01-13-2015, 07:12 PM
Powerstroke.org Sponsor


Join Date: Apr 2010
Location: Defiance
Posts: 5,749
Thanks: 528
Thanked 189 Times in 177 Posts
Feedback Score: 1 reviews
Yup, save your money. tiny little snap ring that holds the guts together. I have bunches of old ones laying in my fittings bin.
Reply With Quote Quick reply to this message
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Display Modes

Posting Rules
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

All times are GMT -8. The time now is 10:51 PM.

Powered by vBulletin® Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.