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  #49  
Old 02-11-2016, 11:01 AM
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Originally Posted by protect1989 View Post
The tires that come stock with the 20" rims are 265/50/20. The Pirelli Scoprion Verde come in 285/50/20. Does going to a slightly larger tire greatly change the ride/would it fit?
On the new summits (2016) that i saw they have 265/50R20 pirelli scorpions on them as stock. Tire rack sells the pirelli scorpions in the 265/50r20 size. I would not change the size up unless you really feel you need to for offroad ability. Or if you are trying to get wider like the srt which are 295/45R20 you need a different rim then the stock if you want to go with those though

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  #50  
Old 02-11-2016, 11:03 AM
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Re: 2015 WK2 Summit Poor damping

Quote:
Originally Posted by silvermax04 View Post
On the new summits (2016) that i saw they have 265/50R20 pirelli scorpions on them as stock. Tire rack sells the pirelli scorpions in the 265/50r20 size. I would not change the size up unless you really feel you need to for offroad ability. Or if you are trying to get wider like the srt which are 295/45R20 you need a different rim then the stock if you want to go with those though
I dont need the offroad ability as my jeep is an asphalt lover. Would the slightly larger tire equate to a softer ride or would it just mean a decrease in fuel economy?
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  #51  
Old 02-11-2016, 11:30 AM
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Quote:
Originally Posted by protect1989 View Post

I dont need the offroad ability as my jeep is an asphalt lover. Would the slightly larger tire equate to a softer ride or would it just mean a decrease in fuel economy?
Increasing your side wall height with a little taller 20 tire could soften your ride but taller sidewalls also decrease handling. In the small increments you are talking not sure you will se that much difference. also keep in mind changing tire height from stock will make your speedometer wrong unleass you calculate a like tire in height such as what SRT uses, the 295s.
If you are really concerned with ride softness move down to an 18 inch rim that will incresse your side wall the most and not impact your speddometer if you stay with stock sizes
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  #52  
Old 02-11-2016, 01:58 PM
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Re: 2015 WK2 Summit Poor damping

I didn't even think about the speedometer adjustment. Really all I want is a smoother ride from the jeep. Maybe new tires in the standard height will get me that. I love the 20" rims though, so I don't think I could bring myself to go down to 18
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  #53  
Old 02-11-2016, 07:52 PM
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Re: 2015 WK2 Summit Poor damping

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Originally Posted by higson View Post
Typically higher load rating = stiffer sidewall = sharper handling.


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Which equals a stiffer ride. But sounds like that's what you are looking for. Good luck.
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  #54  
Old 02-11-2016, 08:41 PM
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Re: 2015 WK2 Summit Poor damping

Yeah the Forteras are so bouncy I can't stand it. Hopefully the Scorpions do the trick for me.


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Old 02-12-2016, 03:01 PM
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Re: 2015 WK2 Summit Poor damping

Got the Scorpions. Initial impression is that turn in is sharper and the vehicle feels more nimble and planted. There is less bounce when coming to a hard stop, but there is till some. Grip seems good. Tires are quiet and smooth on the highway. No ride roughness. Vehicle seems "tighter" and invites driver confidence.

Haven't tried it over uneven pavement yet, something that really unglued the Forteras. Have a long drive to NYC tomorrow so will have better overall impression then.

I have them inflated to 40psi.


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Old 02-12-2016, 06:15 PM
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Re: 2015 WK2 Summit Poor damping

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Originally Posted by higson View Post
Hmm I know the Hemi adds 350 pounds and that will have an impact, but it shouldn't be like this. Question: Do you have 18 or 20" wheels on your HA?


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High Altitude is 20" wheel. Everything I said is with the same exact Fortera tire so a lot of it does have to do with the suspension. My HA handles great with the Forteras so there is for sure some bounciness/mushiness in the Summit air suspension.
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  #57  
Old 02-12-2016, 06:51 PM
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Re: 2015 WK2 Summit Poor damping

Well the HA is supposed to have " Performance Shock Dampening for Sportier Ride"

Have you compared the part numbers for front struts and read shocks? That should tell the difference.

Replacing the rears should be easy. The fronts will cost $1000 each plus installation.

HA isn't available with the V8 though. Because of this it probably isn't advisable to swap out the front shocks.

Anyone else look into this?



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Old 02-12-2016, 06:55 PM
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Re: 2015 WK2 Summit Poor damping

Quote:
Originally Posted by higson View Post
Well the HA is supposed to have " Performance Shock Dampening for Sportier Ride"

Have you compared the part numbers for front struts and read shocks? That should tell the difference.

Replacing the rears should be easy. The fronts will cost $1000 each plus installation.

HA isn't available with the V8 though. Because of this it probably isn't advisable to swap out the front shocks.

Anyone else look into this?



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That is actually incorrect information. The HA does come with the option to select the V8 or the V6 Eco Diesel as a power source.


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  #59  
Old 02-12-2016, 07:22 PM
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Re: 2015 WK2 Summit Poor damping

Right. I stand corrected!


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Old 02-12-2016, 08:52 PM
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Re: 2015 WK2 Summit Poor damping

Yeah maybe he was thinking the regular Altitude based off the Laredo I don't know. But yeah the HA is more or less a cross between the Summit and Overland and has all the goodies. Yes I have compared part numbers and obviously they are different. If anyone does want the numbers I can look in the wheel wells and easily see the label.
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