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Topic: Resonators and fuel economy? (Read 496 times) previous topic - next topic

Resonators and fuel economy?

Thinking about having a resonator (Magnaflow p/n 12774?) installed.  Any noticeable horsepower gain is reason enough but I'm curious about improvement in fuel consumption.  So for those of you who have made the change and keep track of your fuel consumption, would you mind sharing your results?  I am also open to opinions and advice.  Thanks!
Bill
Bill and Joyce, The House2 and Dashboard Pig III
2000 U320 4210 CAI (The House2)
Build # 5733
2019 F150 King Ranch FX4

Re: Resonators and fuel economy?

Reply #1 –
I do  the same trip year after year.  I drive from VA to Spokane Washington in the spring or the summer every year. I have three  years of data before and 6 after the resonator.  I also have it in my old coach as well.  I got about .7 mpg better mileage.  I get better boost too and I raised my overall milage b y the silverleaf from 6.8 to 7.5 since new. 

Some of that could be breaking in but I put the resonator on 60K miles ago and love it.
2025 Wanderbox Outpost 32 on F600 Expedition Motorhome
2015 Born Free Royal Splendor on Ford 550 nonslide version  for sale
Former Coaches  covering. 360,000 miles
1999 34 U270
2000 36 U320
2001 42' double slide U320
2018 Jeep Rubicon

Re: Resonators and fuel economy?

Reply #2 –
Also try searching the forum - I put in resonator mpg and came up with 20+ topic results.
Learn every day, but especially from the experiences of others. It's cheaper!  - John C. Bogle

2000 U320 36' non-slide / WildEBeest Rescue
2003 U320

Re: Resonators and fuel economy?

Reply #3 –
Do not keep fuel use records as not interested but would do this changeover again in a heart beat. Love the extra boost although I again have a Banks on mine and that alone makes a massive difference. Some have said the Banks will trash your engine but mine has been on now for 7 yrs and the engine just purrs along. I get up to 34lbs max boost on a big push but do have to be carefull about temps.
Do it you will love the difference and it only costs a couple of dollars to do it compared to all other improvements you do.
JohnH
Coachless, now use aircraft. 2003 Ford Travelair TC280 class C. Super shape. Just for 1 yr .
1994 Ford E350 ClassC,total renovation inside and out. Now sold.
2000 U295  36' Cummins 350 c/w Banks Stinger, Resonator upgrade,Solar, LED lites.Residential fridge with slide out pantry. Build 5674. Sold
ex 92 GV 022C ored Cummins. Sold
ex 95 GV240 cat 3116. Sold
2017 Mini cooper s & 2016 land Rover LR2 HSE  LUX.
jhaygarth@aol.com    SKP #130098
treat everyone as you would like to be.

Re: Resonators and fuel economy?

Reply #4 –
Quote from: Bill & Donna –
Thinking about having a resonator (Magnaflow p/n 12774?) installed.  Any noticeable horsepower gain is reason enough but I'm curious about improvement in fuel consumption.  So for those of you who have made the change and keep track of your fuel consumption, would you mind sharing your results?  I am also open to opinions and advice.  Thanks!
Bill
Howdy Bill,  Here's a link to my experience: Resonator Installation
Good Luck, Dave A
Dave and Nancy Abel
'00 U320 36' WTFE  Build #5669
'10 Jeep Wrangler Unlimited Rubicon
Livingston, TX  SKP's Fulltiming