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 > Koni FSD shocks

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427435

Rochester, Mn

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Posted: 09/09/13 08:29am Link  |  Quote  |  Print  |  Notify Moderator

The Koni FSD's made a huge improvement in the ride of my MH. I wonder if the OP (and others), that still have a harsh ride, have their tires over inflated?


Mark

2000 Itasca Suncruiser 35U on a Ford chassis, 80,000 miles
2003 Ford Explorer toad with Ready Brake supplemental brakes,
Ready Brute tow bar, and Demco base plate.


wolfe10

Texas

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Posted: 09/09/13 08:35am Link  |  Quote  |  Print  |  Notify Moderator

Harsh ride can be attributed to several factors:

Over inflated tires, springs with too little weight on them as well as shocks.

Basic test if you feel harshness is due to shocks-- remove them and go for a short drive. In many cases the ride will still be harsh-- particularly if you have Koni FSD's, which DO give softer ride than OE shocks (unless of course OE shocks are shot).


Brett Wolfe
1997 Safari Sahara 3540
EX: 1993 Foretravel 36' U-240


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Clay L

Palisade CO

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Posted: 09/09/13 09:06am Link  |  Quote  |  Print  |  Notify Moderator

My tires are not over inflated and the ride with the OEM Monroe shocks was softer with the same pressures than the Koni FSDs.
The Monroe shocks had a disconcerting large downward excursion on certain road dips that upset a lot of folks. Workhorse was trying to duplicate the ride of a DP with air suspension and except for the downward excursion did a pretty good job. The Koni shocks did eliminate the excursion but the ride suffered.


Clay (WA5NMR), Lee (Wife), Katie & Kelli (cats).

Fixed domicile after 1 year of snowbirding and eleven years Full Timing in a 2004 Winnebago Sightseer 35N, Workhorse chassis, Honda Accord toad

Dale.Traveling

Newport News, VA

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Posted: 09/09/13 09:12am Link  |  Quote  |  Print  |  Notify Moderator

I installed Koni's on the front this past spring replacing the factory installed Blistein's. The rear has year old Blistein's. 2006 18K (15K rolling weight) F53 chassis. There was some difference in performance on minor bumps but a hard jolt is about the same. I do notice a bit less dish rattle when the coach front axle hits something as compared to when the rear axle hits the same.

Has anyone ever determined what the front and rear ride height should be for a F53? The Ford specs are for a stripped chassis but what is it once they build a house on it? Wonder how much I might be bottoming out causing the harsh ride.


2006 Hurricane 31D aka 'Moby' the Whale
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Stella my Navigator
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and
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DSDP Don

Moorpark, Ca

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Posted: 09/09/13 05:22pm Link  |  Quote  |  Print  |  Notify Moderator

As I've read these posts over the years, the trend seems to be that people like the Bilsteins better on gas coaches and the Koni FSD's on DP's.


Don & Mary
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Gdlow

Meridian Idaho

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Posted: 09/10/13 09:34am Link  |  Quote  |  Print  |  Notify Moderator

Daveinet wrote:

My guess is the stiff ride you are complaining about has nothing to do with the shocks. Even though your profile does not state it, I would be willing to bet your coach is on a Ford chassis. If I'm right, that should tell you a lot about why the ride is harsh.
It's on the Workhorse chassis


Gary And Cathy
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Gdlow

Meridian Idaho

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Posted: 09/10/13 09:39am Link  |  Quote  |  Print  |  Notify Moderator

Diplomat Don wrote:

Gdlow.....What color were they"
I would say they are somewhat of a gold color

wildmanbaker

Kennewick, Washington

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Posted: 09/10/13 11:10am Link  |  Quote  |  Print  |  Notify Moderator

Dale Traveling is probably correct suspecting the Ford chassis bottoming out. To check if this is happing, get some kids modeling clay, form it to the bump stop snubber with tape, and go for a ride. You will probably find the clay completely mashed-out when you get back and check. Contrary to popular belief, Ford made their springs very soft, for a better ride, which allows the bottoming to cause a harsh ride. This is also why a lot of Ford chassis MHs lean to the passenger side.


Wildman


wolfe10

Texas

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Posted: 09/10/13 11:19am Link  |  Quote  |  Print  |  Notify Moderator

Yes, difficult to tell sometimes whether harsh ride from stiff springs (no or little deflection over bumps) or bottoming out.

Wildman's diagnostic tool is a good one.

LVJ58

Las Vegas, Nevada

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Posted: 09/10/13 12:37pm Link  |  Quote  |  Print  |  Notify Moderator

Gdlow wrote:

I heard these were much smoother running so ordered and had installed them...they are as hard riding as the Bilstein's...Can they be softened Up???


Not all folks who've installed the FSD's on their coaches experience any ride improvement however we sure did on our Ford Chassis.

If your's is a workhorse it most likely came with bilsteins. Just curious, how much air pressure in your tires?

Depending on the load range of your tires, and the weight of your coach, you may be able to lower the pressure, however it's important to get your coach weighed first, then based on axle weight check the tire manufacturers "Load Inflation Chart" before reducing any air pressure.

Good luck in softening up your ride and keep us posted on your progress..

Safe travels..


Jim & Sherry Seward
Las Vegas, NV
2000 Residency 3790 V-10 w/tags & Banks System
2003 Suzuki XL/7 toad

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