once you went into Track that the steering and mag-ride were in Track and only the TC and eLSD were effected.
Stingray ride quality
Le Mans Master
Joined: Jan 2006
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From: Down south in Dixie
Dewayne, before you go to deep check the air pressure in the tires. If they are at 35 psi cold that is part of the problem. I set mine at 30 psi, and now you can't feel every little rock, or imperfection in the road. Maybe that will help.
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Thank you. I will check for sure !!!
Safety Car
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From: Margate, FL
Team Owner
Joined: Sep 2000
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From: Far NW 'burbs of Chicago
St. Jude Donor '13
You can set the steering to stay in the mode you like- Tour, Sport or Track.
In other words, my steering effort stays in Sport regardless of what mode I select on the little ****.
I presume that will also keep it in your manually-selected mode when using PTN?
Mine's slumbering on the tender right now, so I can't check for myself.
In other words, my steering effort stays in Sport regardless of what mode I select on the little ****.
I presume that will also keep it in your manually-selected mode when using PTN?
Mine's slumbering on the tender right now, so I can't check for myself.
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Crap they are at 30psi already...
Intermediate
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I have a 2015 stingray and it road not so well and noisy , I didn't like the Super Sport tires (Run Flats) I bought the non run flat AS 3+ what difference it made , quieter and softer ride, traction is better also , way better.
Le Mans Master
Joined: Dec 2000
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From: Hot Springs AR
I'd try dropping the tire pressure some more, just due to the size of the tires. 325 vs stock 285, that's over 1.5" wider. Stock fronts are 245 (you never said what your fronts were, just that they were wider).
But, I still think that the wider wheels & tires are probably quite a bit heavier than the stockers, and the suspension is designed with the stock wheel/tire weights in mind. Not to mention the wider footprint provides more opportunity to find road bumps and dips, etc.
So, IMO, either you're going to learn to live with the NVH, or go back to stock wheels/tires, OR (thinking out loud) spend some really serious coinage to get high quality lightweight wheels.
HTH, and have a good one,
Mike
But, I still think that the wider wheels & tires are probably quite a bit heavier than the stockers, and the suspension is designed with the stock wheel/tire weights in mind. Not to mention the wider footprint provides more opportunity to find road bumps and dips, etc.
So, IMO, either you're going to learn to live with the NVH, or go back to stock wheels/tires, OR (thinking out loud) spend some really serious coinage to get high quality lightweight wheels.
HTH, and have a good one,
Mike
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I didn't know there were 20's up front til now too. You think this car was mainly at the track? would that be the benefit going that way for the fronts.
Melting Slicks
Joined: Sep 2005
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From: Near Charlotte NC
Not trying to be a SA......but define what Ride Quality means to you and adjust to it.
Stiffer sidewalls usually equals rougher ride and with any tires,you can play with the AP some.Try going down in 1/2 lb increments and see if that helps.
\db2
Stiffer sidewalls usually equals rougher ride and with any tires,you can play with the AP some.Try going down in 1/2 lb increments and see if that helps.
\db2
Drifting
Joined: May 2013
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From: Texas Hill Country Texas
Wow, both front/back way out...hope that doesn’t bottom out and crack your fenders. IMHO doesn’t look good...
perhaps he cranked the suspension up to 11 with aftermarket to save body panels
perhaps he cranked the suspension up to 11 with aftermarket to save body panels
Safety Car
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From: Margate, FL
If anything you want smaller wheels at the track. Dropping down to an 18 / 19 combination for example. Sure wide tires are great for additional grip, but not at the expense of more weight. I assumed they were heavy before but having 20" up front confirms this.
Team Owner
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PTM Wet = Tour MSRC setting
PTM Dry = Sport MSRC setting
PTM Sport 1, 2, and Race = Track MSRC setting
OP,
Bigger low profile tires, coupled with cold temps on summer max performance tires mean a very rough ride. The PSS rubber compounds are rock hard below 40ºF and have very little grip to boot. Even when hot, it's going to be a rougher ride on an imperfect surface the lower profile you run.
Last edited by Foosh; Jan 17, 2019 at 04:39 PM.
Le Mans Master
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From: Down south in Dixie
OK, can't hush, gotta add something. 
Since the tires are sticking out like that could they have spacers behind the wheels? I wonder if that helps in making it ride like a 2 horse wagon?
Since the tires are sticking out like that could they have spacers behind the wheels? I wonder if that helps in making it ride like a 2 horse wagon?
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lol... yeah. when my back heals up Im gonna take the wheels off and see if there are spacers on it or not.
Melting Slicks
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I think the front and rear rims were ordered by previous owner with incorrect offsets....or the previous owner liked the rims so much that owner got the best/closest offset for the style of wheel offered and knew that they would need spacers for caliper clearance. Regardless, I would first make sure the suspension is returned to stock if it is not stock already, and then sell the current rims and tires and purchase 19 inch front and 20 inch rear rims in the correct sizes and offsets so that the tires tuck in the fenders and will not scrape or bottom out while driving it normally.
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I think the front and rear rims were ordered by previous owner with incorrect offsets....or the previous owner liked the rims so much that owner got the best/closest offset for the style of wheel offered and knew that they would need spacers for caliper clearance. Regardless, I would first make sure the suspension is returned to stock if it is not stock already, and then sell the current rims and tires and purchase 19 inch front and 20 inch rear rims in the correct sizes and offsets so that the tires tuck in the fenders and will not scrape or bottom out while driving it normally.
Le Mans Master
Joined: Dec 2000
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From: Hot Springs AR
Regardless, I would first make sure the suspension is returned to stock if it is not stock already, and then sell the current rims and tires and purchase 19 inch front and 20 inch rear rims in the correct sizes and offsets so that the tires tuck in the fenders and will not scrape or bottom out while driving it normally.
Dewayne, you've had a good attitude about all this; I appreciate that. Not defensive, just want to find the problem. You've got good suggestions & observations, hopefully they'll get you on the right track.
Have a good one,
Mike