Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Country Coach Owners Forum
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
 
Thread Tools Search this Thread Display Modes
 
Old 03-21-2016, 09:55 PM   #1
Senior Member
 
dons2346's Avatar
 
Country Coach Owners Club
Join Date: Dec 2010
Posts: 4,483
Source Engineering MCU's

Someone here, I think it might have been Smitty that installed the Source Engineering MCU's on the coach.

I have a couple of questions
__________________

__________________
Don
2002 Country Coach Intrigue
dons2346 is online now   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 03-23-2016, 05:45 PM   #2
Senior Member
 
Smitty77's Avatar
 
Join Date: Aug 2010
Location: Over the next hill, around the next curve...
Posts: 3,309
Hey Don - Sorry for the delayed response.

Yes, I changed over from Super Steers to SE's air check valves.

Super Steers restricted air flow in both direction, while SE restricted air flow in only one direction.

It was and afterthought, as I had called to talk with SE about their Wax Valve Fan Control Module replacement. Was going over handling and ride comfort in general. And their thoughts were that I had three things working to impact our ride comfort on the front end:
1) 12R 22.5 Michelin XZE* set at a relatively high 110PSI
2) Road King Shocks - Their previous generation
3) Super Steer Motion Control Unit

All three working together, when hitting say a bump, or rumble strip, small hole, or the ALCAN - all restrict the ability of the suspension to 'cushion/absorb' the impacts.

On MCU's, their check valve restricts air not on the impact, but on the rebound. (My terminology, not theirs.

On the Road Kings, well, I like the handling. I could get the front re-valved, but I'm not going to do so unless the other steps do not make difference.

On the tires, well we lost two Michelin XZE*'s due sever pot hole edge impact. Put two BF Goodrich ST230's, still set at 110PSI for now (About to be lowered to 100 or 105PSI. Reference my post on updated four corner weights.) But, the ST230's have a less stiff tire sidewall (my terminology), and we both noted a difference in the front end ride just by the ST230's vs XZE*'s).

So, decided to have the SE check valves added to the front, to help on the ride comfort. And while doing so, went ahead and did the rears too!

And yes, we both noticed another notch in improvement of road imperfections.

Handling has remained the same, with the tires and the check valves added. I'd estimate about a 15-20% less stiff/harsh front end ride, by these changes so far. Will be dropping the tire PSI before heading out, and expect it will help a bit more.

And another yes, I did impact our ride by my choices of XZE*'s, Road Kings and Super Steer MCU's. But I value handling over comfort, and will do all that I can to retain the improved handling. And of course, this is all with my years chassis IFS.

So Don, knowing you, suspect none of the above were your questions about SE MCU's!
But, I wanted to explain where we were, and what changes we made, and why.

Best,
Smitty
__________________

__________________
Roo II is our 04 Country Coach Allure 40'
OnDRoad for The JRNY! Enjoy life...
Smitty77 is online now   Reply With Quote
Old 03-23-2016, 11:06 PM   #3
Senior Member
 
dons2346's Avatar
 
Country Coach Owners Club
Join Date: Dec 2010
Posts: 4,483
Thanks for the info. I currently have the Road Kings, I guess their first generation as they are the smaller piston. Someone talked me into the Koni FSD and within 20K miles, they were no better than the Konis I took off. The RKs did make a huge difference and so far, after 80K miles or so, I am still happy.

The tires are the Michelin XZA2 and so far they are running fine. They replaced the Goodyear G670 which in my opinion is the worst tire on the market.

So, from what you are saying, the SE MCU units are giving you a better ride than the Super Steer units that Henderson's sells?

If so, I am probably going to have them installed at the June FMCA rally in Albany.

Thanks for the info.

Interesting thing about the fan controller. I had one replaced and have had no problems since. I took the failed unit apart and if you go on the Yahoo groups CC forum, in the photo section, you will find pictures I took of the failed unit. It all boiled down to a bad solder joint which is visible in the photos
__________________
Don
2002 Country Coach Intrigue
dons2346 is online now   Reply With Quote
Old 03-23-2016, 11:23 PM   #4
Senior Member
 
Mr_D's Avatar
 
Solo Rvers Club
iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 28,475
KONI just announced new EVO shocks for the 20,000# front axle some of us have. Not adjustable as they use the FSD technology. I need to order a pair I guess.
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
Charter Good Sam Lifetime Member, FMCA, SKP
RV'ing since 1957, NRA Benefactor Life, towing '14 CR-V
Mr_D is online now   Reply With Quote
Old 03-24-2016, 10:23 PM   #5
Senior Member
 
dons2346's Avatar
 
Country Coach Owners Club
Join Date: Dec 2010
Posts: 4,483
Quote:
Originally Posted by Mr_D View Post
KONI just announced new EVO shocks for the 20,000# front axle some of us have. Not adjustable as they use the FSD technology. I need to order a pair I guess.
I had the Koni FSD shocks, what a piece of junk on a heavy front end coach. I'll stick with my Road Kings
__________________
Don
2002 Country Coach Intrigue
dons2346 is online now   Reply With Quote
Reply

Tags
engine



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Henderson MCU's on Tag Axle Coach smlranger Class A Motorhome Discussions 4 07-25-2014 09:01 PM
MCU's on Tag RV's Smitty77 Class A Motorhome Discussions 1 08-16-2010 02:40 PM
MCU's lengthen time to air up... azloafer Freightliner Motorhome Chassis Forum 11 05-16-2010 10:02 PM
Source Engineering - Customer Testimonial DriVer Vendor Spotlight (Deals, Announcements & More) 0 04-30-2010 10:32 AM
Source Engineering - 1st Annual Rally Event DriVer Vendor Spotlight (Deals, Announcements & More) 0 04-22-2010 02:13 PM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 10:32 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.