Koni FSD shocks installed (updates)
My coach is an 09 Itasca Cambria,30ft. E-450 chassis. Had my Koni's installed yesterday .On the drive home about 7miles I noticed an immediate lack of banging when I drove over RR tracks and expa...
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I'm trying my best to ignore weight-based tire pressures: My rig weighs in (without rockhounded rocks on board) at around 11,800 lbs.. I leave the rear duallies at 80lbs. for optimized fuel mileage and minimized internal heating from sidewall flexing. I leave the front singles at 65 lbs. for optimized fuel mileage and minimized heating from sidewall flexing - while at the same time not introduce any steering-wander.
I'm relying on the new FSD shocks in the rear (and later in the front) to offset the E450's under-loading just enough so as to reduce the pounding in the rear to tolerable levels. So far the FSD shocks in the rear seem to be doing it.
However I try to further help the pounding in the rear by maintaining the fuel always in the top half for weight in the rear and the fresh water topped up for weight in the rear. Right after fueling up, with a topped up fresh water tank, partially full black and grey tanks, and with the Koni FSD shocks - the ride in the rear on highway cracks/potholes defiinitely approaches "tolerable" with the tire pressures that I show above.
By the way, the side-sway control with the Ford stock front/rear E450 sway bars and the new Koni FSD shocks is excellent - with a firm and solid, no-rocking, in-control feel on curves, long bumps, and over curbs.
One thing about the Koni FSD shocks has me slightly concerned. Koni lists the same FSD part number for rear shocks for both the E350 and the E450 and the same FSD part number for front shocks for both the E350 and the E450. How can the same FSD shock part numbers offer optimized performance on both an E350 and an E450? Either the current Koni FSD rear and front shocks are non-optimized for a fully loaded E350 or they are non-optimized for a fully loaded E450. You can't have it both ways. When fully loaded the two chassis can be carrying around 2500 lbs. difference in weight.
I'm relying on the new FSD shocks in the rear (and later in the front) to offset the E450's under-loading just enough so as to reduce the pounding in the rear to tolerable levels. So far the FSD shocks in the rear seem to be doing it.
However I try to further help the pounding in the rear by maintaining the fuel always in the top half for weight in the rear and the fresh water topped up for weight in the rear. Right after fueling up, with a topped up fresh water tank, partially full black and grey tanks, and with the Koni FSD shocks - the ride in the rear on highway cracks/potholes defiinitely approaches "tolerable" with the tire pressures that I show above.
By the way, the side-sway control with the Ford stock front/rear E450 sway bars and the new Koni FSD shocks is excellent - with a firm and solid, no-rocking, in-control feel on curves, long bumps, and over curbs.
One thing about the Koni FSD shocks has me slightly concerned. Koni lists the same FSD part number for rear shocks for both the E350 and the E450 and the same FSD part number for front shocks for both the E350 and the E450. How can the same FSD shock part numbers offer optimized performance on both an E350 and an E450? Either the current Koni FSD rear and front shocks are non-optimized for a fully loaded E350 or they are non-optimized for a fully loaded E450. You can't have it both ways. When fully loaded the two chassis can be carrying around 2500 lbs. difference in weight.
