Fuel and oil crossover install results (FRx and HPx) - Diesel Forum - TheDieselStop.com
'99 & up Upgrades and Aftermarket - 7.3L Engine Upgrading or adding OEM or aftermarket equipment to your 1999-Up Super Duty or Excursion with 7.3L Power Stroke diesel engine. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

 
LinkBack Thread Tools Display Modes
post #1 of 12 (permalink) Old 06-13-2013, 04:43 PM Thread Starter
Senior Member
 
Join Date: Sep 2008
Posts: 178
My Photos: (3)
Feedback Score: 0 reviews
Fuel and oil crossover install results (FRx and HPx) and question.

Completed the Riffraff FRx and HPx install. Did both at the same time so can not speak to which produced what results.
The results of the install were quite noticeable. The engine is much quieter now from idle all the way through it rpm range and idle seems a bit smoother.
There's something I don't understand about the noise reduction so if anybody has any theory's please chime in.
I have a DP-Tuner chip with a few different tunes. Pre-FRx/HPx install, there was a large increase in engine noise when moving from the stock tune to any DP-Tuner tune. That is, you're idling in the stock tune and you then select a DP-Tuner tune and the idle noise level would bump up noticeably. And acceleration from off idle up through to cruise was also noticeably louder in any of my DP-Tuner tunes vs the stock tune. --To the point where if I was in a neighborhood early or late I'd select the stock tune just for its quietness.
Now, after the FRx/HPx install, all my DP-Tuner tunes are as quiet as the stock tune. This is surprising to me! The DP tunes were so significantly louder than the stock tunes and now after the install, they're not. How is that? What's going on? I was curious enough to call Jody at DP-Tuner but was too late and they were closed for the day. If I find anything out, I'll post back here.

1999 F350 DRW Long Bed Crew Cab 4x4
Carries 5000lb+ Lance Camper
DP Tuner chip w/ 60econ, 120race, decel, hi idle
Stancor Glow Plug Relay
VDO gauges
Ford AIS and zoodad mod
MagnaFlow 4" Exhaust and muffler
Bellowed Up Pipes from Int'l
John Wood Eco HD trans, 6.0 cooler and Maghytec tranny pan
Maghytec rear diff cover w/ Mobil 1 75W-140
Mobil 1 ATF in trans/transfer case/powersteering Magnafine filters for tranny and power steering
Airbags, KYB Monomax shocks, Torklift Swaystops, Roadmaster 1.5" Rear Sway Bar
CCV mod
TransferFlow 57 gallon fuel tank
Riffraff fuel and oil crossover
Strictly Diesel fuel tank/pre-pump kit
Air intake heater delete Max A/C assist Braided 4WD shift hoses, Replacement boots for all turbo/intercooler boots, Coolant filtration system, 203*F thermostat
2 layers Dynamat Extreme on interior roof/floor/doors, Dynamat Xorb on Firewall
Alpine IVA1000 and amp, Python Alarm

Last edited by farnorthdriver; 06-13-2013 at 07:54 PM. Reason: Correct title
farnorthdriver is offline  
Sponsored Links
Advertisement
 
post #2 of 12 (permalink) Old 06-14-2013, 01:15 AM
Senior Member
 
Join Date: May 2011
Posts: 172
My Photos: (0)
Feedback Score: 0 reviews
I'm curious what response you get. I don't have either the FRX or the HPX, but I have noticed the noise difference. Like you, if it's late, I will swap to the stock tune to make myself quieter. I've noticed the noise increase in all my tunes as well, not just one tune.

2000 F350 lariat, crew cab, long bed, 4x4, 3.73 limited slip

LASB turbo from Irate Diesel
Bellowed up-pipes
4" turbo back exhaust
Gauges (EGT, Trans Temp, Boost)
AFE Stage 2 XP Pro Guard 7
DP Tuner F6 (no start, stock, 80e, 60e, 60t)
AIH delete and CCV mod
F650 Dash with Carling switches
2002 Headlights with FX-R HID bi-xenon projector retrofit and 50W 5000K bulbs
53fordguy is offline  
post #3 of 12 (permalink) Old 06-14-2013, 08:55 AM
Senior Member
 
Join Date: Aug 2003
Posts: 218
My Photos: (0)
Feedback Score: 0 reviews
I just did mine last week nice mod
redrocker is offline  
Sponsored Links
Advertisement
 
post #4 of 12 (permalink) Old 06-14-2013, 12:17 PM
Senior Member
 
Join Date: Nov 2012
Location: Oakdale, CA
Posts: 561
My Photos: (0)
Feedback Score: 1 reviews
The goal of the FRx and HPx is to quiet down engine operation on the fuel side, and smooth out the engine on the oil side.

It does so on the fuel side by giving air an alternative route to exit instead of forcing it through the injectors. Air in fuel causes noise when going through an injector. The FRx routes the aerated fuel back to the tank.

It does so on the oil side because it stabilizes the oil pressure in both rails by connecting them together. This usually does not effect noise, but sometimes helps with the steadiness of idle.

As for your results... It may just be quieter because the parts you installed are doing their job. Our tunes should not be a lot louder than stock anyway. They do increase noise a little bit though because ICP is increased.

Let me know if you have any other questions.
post #5 of 12 (permalink) Old 06-14-2013, 12:53 PM Thread Starter
Senior Member
 
Join Date: Sep 2008
Posts: 178
My Photos: (3)
Feedback Score: 0 reviews
I agree redrocker, they are really great mods.
As for the install of the FRx, as my hands are extremely large and the fuel rail plugs were very tight I had a absolutely heinous time putting this simple mod in! I'm not overstating things when I say it was the most frustrating, awkward, difficult and swear infested mechanical thing I've ever done! Looking back on it I laugh but at the time, wow. --And I read more than a few posts of people having no problem putting them in. Maybe more a testament to my mechanical skills :-)

1999 F350 DRW Long Bed Crew Cab 4x4
Carries 5000lb+ Lance Camper
DP Tuner chip w/ 60econ, 120race, decel, hi idle
Stancor Glow Plug Relay
VDO gauges
Ford AIS and zoodad mod
MagnaFlow 4" Exhaust and muffler
Bellowed Up Pipes from Int'l
John Wood Eco HD trans, 6.0 cooler and Maghytec tranny pan
Maghytec rear diff cover w/ Mobil 1 75W-140
Mobil 1 ATF in trans/transfer case/powersteering Magnafine filters for tranny and power steering
Airbags, KYB Monomax shocks, Torklift Swaystops, Roadmaster 1.5" Rear Sway Bar
CCV mod
TransferFlow 57 gallon fuel tank
Riffraff fuel and oil crossover
Strictly Diesel fuel tank/pre-pump kit
Air intake heater delete Max A/C assist Braided 4WD shift hoses, Replacement boots for all turbo/intercooler boots, Coolant filtration system, 203*F thermostat
2 layers Dynamat Extreme on interior roof/floor/doors, Dynamat Xorb on Firewall
Alpine IVA1000 and amp, Python Alarm
farnorthdriver is offline  
post #6 of 12 (permalink) Old 06-14-2013, 01:41 PM
Senior Member
 
Join Date: Nov 2012
Location: Oakdale, CA
Posts: 561
My Photos: (0)
Feedback Score: 1 reviews
Quote:
Originally Posted by farnorthdriver View Post
I agree redrocker, they are really great mods.
As for the install of the FRx, as my hands are extremely large and the fuel rail plugs were very tight I had a absolutely heinous time putting this simple mod in! I'm not overstating things when I say it was the most frustrating, awkward, difficult and swear infested mechanical thing I've ever done! Looking back on it I laugh but at the time, wow. --And I read more than a few posts of people having no problem putting them in. Maybe more a testament to my mechanical skills :-)
Getting that passenger side fuel rail plug out was not fun, was it?
post #7 of 12 (permalink) Old 06-17-2013, 06:42 AM
Senior Member
 
2002F250's Avatar
 
Join Date: Apr 2006
Location: Monroe County, MI
Posts: 386
My Photos: (13)
Feedback Score: 0 reviews
[[email protected];2517538] Our tunes should not be a lot louder than stock anyway. They do increase noise a little bit though because ICP is increased.[QUOTE]

What do you consider "a lot" as far as the noise goes? Because on my truck, there is a significant difference in noise under acceleration in any of my tunes, compared to stock. It didnt really used to bother me, but I must be getting old now. lol

2002 F-250
Lariat, CC, SB, 4x4 Off Road, 7.3L, Auto Trans, 3.73 LS, AIS, Zoodad, Autometer Ultra Lite Boost, Pyro, Trans & Fuel Pressure Gauges, Walker BTM, IC Tube Foil Delete, DR 2" Leveling Kit, BFG A/T 285's, Door Seal Mod, Tranny Magnefine,
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
, Harpooned Tank, 4" rear blocks, ITP Overboost, DP-Tuner F6 No Start, Stock, 60E, 80E & 80T, JW Valvebody, PowerSlot Cryo Rotors w/Hawk LTS pads, Bilstein Shocks, Dieselsite Boots, Dieselsite Coolant Filter, Dieselsite 203* T-Stat, Prestone ELC, FRx R/R, IH Bellowed Up-Pipes, '08 Diff Cover, MBRP 4" Turbo Back Exhaust

To Do/Wish List: Turbo-Master, Wicked Wheel 2, Adrenaline HPOP
2002F250 is offline  
post #8 of 12 (permalink) Old 06-17-2013, 12:27 PM
Senior Member
 
Join Date: Nov 2012
Location: Oakdale, CA
Posts: 561
My Photos: (0)
Feedback Score: 1 reviews
[quote=2002F250;2521274][[email protected];2517538] Our tunes should not be a lot louder than stock anyway. They do increase noise a little bit though because ICP is increased.
Quote:

What do you consider "a lot" as far as the noise goes? Because on my truck, there is a significant difference in noise under acceleration in any of my tunes, compared to stock. It didnt really used to bother me, but I must be getting old now. lol
Yes, there will be a change in pitch/sound, but it should not be drastic. Has it always been like this?
post #9 of 12 (permalink) Old 06-17-2013, 03:24 PM
Member
 
Join Date: Apr 2013
Location: Lima, OH
Posts: 95
My Photos: (0)
Feedback Score: 0 reviews
My on 80 HP economic tune is very noticeable. Worst is running down the road about 55 or so. Actually any steady cruise speed. Bump it in to stock and instantly quieter.

02 CCLB Drw
AirAid intake, 4" exhaust, FullForce stage 1.5,
PHP Hydra with GearHead tunes, Van turbo, Wicked Wheel 2, Edge Insight CTS, Riff Raff Hrx & Frx

Injector cup tools in Lima, OH
barnhartal is offline  
post #10 of 12 (permalink) Old 06-17-2013, 10:04 PM
Senior Member
 
Join Date: May 2011
Posts: 172
My Photos: (0)
Feedback Score: 0 reviews
Quote:
Originally Posted by barnhartal View Post
My on 80 HP economic tune is very noticeable. Worst is running down the road about 55 or so. Actually any steady cruise speed. Bump it in to stock and instantly quieter.
Same here, I thought that was "normal" so I learned to deal with it. I didn't realize that the tunes were supposed to be close to stock in terms of noise.

2000 F350 lariat, crew cab, long bed, 4x4, 3.73 limited slip

LASB turbo from Irate Diesel
Bellowed up-pipes
4" turbo back exhaust
Gauges (EGT, Trans Temp, Boost)
AFE Stage 2 XP Pro Guard 7
DP Tuner F6 (no start, stock, 80e, 60e, 60t)
AIH delete and CCV mod
F650 Dash with Carling switches
2002 Headlights with FX-R HID bi-xenon projector retrofit and 50W 5000K bulbs
53fordguy is offline  
post #11 of 12 (permalink) Old 06-18-2013, 06:40 AM
Senior Member
 
2002F250's Avatar
 
Join Date: Apr 2006
Location: Monroe County, MI
Posts: 386
My Photos: (13)
Feedback Score: 0 reviews
[[email protected];2521826][quote=2002F250;2521274]
Quote:
Originally Posted by [email protected] View Post
Our tunes should not be a lot louder than stock anyway. They do increase noise a little bit though because ICP is increased.

Yes, there will be a change in pitch/sound, but it should not be drastic. Has it always been like this?
Yup, always been that way for me. I agree with the guys above, I thought it was normal and dealt with it, not knowing the noise levels were supposed to be close to stock. Would it help if I recorded a video and tried posting it here or sending it to you somehow?

2002 F-250
Lariat, CC, SB, 4x4 Off Road, 7.3L, Auto Trans, 3.73 LS, AIS, Zoodad, Autometer Ultra Lite Boost, Pyro, Trans & Fuel Pressure Gauges, Walker BTM, IC Tube Foil Delete, DR 2" Leveling Kit, BFG A/T 285's, Door Seal Mod, Tranny Magnefine,
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
, Harpooned Tank, 4" rear blocks, ITP Overboost, DP-Tuner F6 No Start, Stock, 60E, 80E & 80T, JW Valvebody, PowerSlot Cryo Rotors w/Hawk LTS pads, Bilstein Shocks, Dieselsite Boots, Dieselsite Coolant Filter, Dieselsite 203* T-Stat, Prestone ELC, FRx R/R, IH Bellowed Up-Pipes, '08 Diff Cover, MBRP 4" Turbo Back Exhaust

To Do/Wish List: Turbo-Master, Wicked Wheel 2, Adrenaline HPOP
2002F250 is offline  
post #12 of 12 (permalink) Old 06-18-2013, 06:29 PM
Senior Member
 
Join Date: Nov 2012
Location: Oakdale, CA
Posts: 561
My Photos: (0)
Feedback Score: 1 reviews
As I have stated, it is okay/normal for an increase in cackle noise. The increased ICP is what this results from. What I mean by my statements above is that it is not normal for a drastic increase in noise. Videos are hard decipher noise from. If you have been using the tunes successfully for some time, there should be no problem.

Drastic increases in noise can come from fuel issues as well, such as the case of the OP. Also, worn out poppets in the injectors can cause excessive noise as well.
Sponsored Links
Advertisement
 
Reply

  Diesel Forum - TheDieselStop.com > 1999-2007 Ford Super Duties > '99 & up Upgrades and Aftermarket - 7.3L Engine

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Diesel Forum - TheDieselStop.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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

 
For the best viewing experience please update your browser to Google Chrome