08-28-2018, 03:51 PM | #15 |
Drives: 2017 Hyper Blue SS 1LE Join Date: May 2017
Location: Wilmington, NC
Posts: 90
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It's almost like your MRC was still in Tour.
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08-28-2018, 07:09 PM | #16 |
Drives: 2018 2SS Coupe A8 Join Date: Nov 2016
Location: Menomonee Falls WI
Posts: 213
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Thank you Travis and forum members for the good information
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09-06-2018, 07:51 PM | #17 |
Drives: 2022 1SS 1LE A10 BCD WCT+PDR Join Date: Mar 2008
Location: Johnstown, PA
Posts: 3,250
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The first laps of the day or of a session after tire temps/pressures have dropped are important. Putting the hammer down before the pressures are very near optimum will abuse the outer shoulder. I’ve felt the sidewalls lay over, more often in Pitt Race’s turn 4. What are you cold pressures?
Be aware that going nuts on the static camber will be abusive to the inner shoulders. This is where finding optimum caster helps. Caster helps the dynamic camber on both fronts in a corner. It will help the more loaded outer tire in a turn by adding dynamic negative camber and conversely, it will help the inner less loaded front tire by subtracting the dynamic negative camber. But, since there is no free lunch, addition caster beyond OE may create bumpsteer. Been there, done that. The comment about more grip=more chassis roll is spot on. An easy change would be to swap in stiffer anti roll bars, if anyone makes them. But without any hard data on actual stiffness differences, it would just be a guessing game. Any change to the roll stiffness may also negatively change how the MRC performs.
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09-09-2018, 08:17 PM | #18 |
Drives: '17 ZL1 Join Date: Jul 2016
Location: Fairmont, WV
Posts: 1,558
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I ordered the DSSV kit and ZL1 1LE rear sway bar Friday. Hopefully I'll get a couple track days with them before the end of the season.
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09-09-2018, 09:00 PM | #19 |
CamaroFans.com
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Tire Rack really provided an awesome response. Totally surprised by that.
One reason I'm switching to 1LE is the suspension. Will be interested to hear your review on the DSSV. As for tires I'll probably use the Goodyears for the track and I have a second set of OE wheels on order for tires TBD. I wonder if 20" tires with the smaller sidewalls has anything to do with this. |
09-09-2018, 10:05 PM | #20 | |
Drives: '17 ZL1 Join Date: Jul 2016
Location: Fairmont, WV
Posts: 1,558
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Quote:
I'm really looking forward to the DSSVs. It should put me in a unique position to evaluate MRC vs DSSV without other variables like aero, wheel size, tires, 1LE secret sauce software, etc.. we'll see how it goes. I'm sure the sidewalls make a difference, but I could see a stiffer sidewall perhaps being a benefit...who knows though. PittRace is just really hard on tires, and I'm bad about sliding the front around every turn anyway. I have a new set of R7s. I plan to watch the pressures a little more closely and try not to run them too hard for the first couple laps of each session.
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09-13-2018, 02:36 PM | #21 | |
Drives: 2017 SS 1LE, 2016 1SS (previous) Join Date: Apr 2016
Location: Metro-Detroit
Posts: 1,863
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Quote:
On the other hand, a taller sidewall effectively gives a more compliant package, possibly lowering the spring rate of the tire, lessening the work of the springs/dampers. Haven't people run PWC Pirelli slicks? Those are a fairly durable, sticky and soft-sidewall-ed tire... The Mustang guys use them a lot on medium static camber (-2.5 to -3.0) cars. |
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09-13-2018, 03:06 PM | #22 |
Drives: 2017 SS 1LE, 2016 1SS (previous) Join Date: Apr 2016
Location: Metro-Detroit
Posts: 1,863
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Found this when looking for DH slicks for sale. Something I've not seen stated by PWC before, but I guess that was the case until the 2017 season:
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09-13-2018, 03:47 PM | #23 | |
Drives: '17 ZL1 Join Date: Jul 2016
Location: Fairmont, WV
Posts: 1,558
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Quote:
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09-20-2018, 03:37 PM | #24 |
Drives: 2017 Camaro ZL1 Join Date: Aug 2014
Location: Dallas
Posts: 145
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09-20-2018, 07:43 PM | #25 |
Drives: 2017 1SS 1LE Join Date: Aug 2017
Location: New Jersey
Posts: 391
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Don’t be surprised, Tire Rack is the real deal. Those guys know their stuff, and race too.
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09-20-2018, 10:30 PM | #26 |
Drives: '17 ZL1 Join Date: Jul 2016
Location: Fairmont, WV
Posts: 1,558
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I'm putting their response to the test this weekend. I have solid cradle mounts, an FEA suspension, and fresh Hoosiers I'll be maxing the camber out tomorrow hopefully getting close to -4 in the front.
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09-22-2018, 08:24 PM | #27 |
Drives: 2017 1SS 1LE Join Date: Aug 2017
Location: New Jersey
Posts: 391
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How did it go today?
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09-23-2018, 12:35 PM | #28 |
1LE Convert
Drives: 2018 ZLE Join Date: Apr 2017
Location: Mountain View, CA
Posts: 368
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It sounds like their advice was spot on. I do agree that stickier tires needs a stiffer suspension to utilize the grip. Fast cars are engineered with a specific tire compound in mind nowadays.
Consider ZL1/SS 1LE with GY S3 vs ZLE with GY S3R. Hard mounted suspension, DSSV, higher spring and sway rates, all to handle the higher grip from the R tires. And those aren't even slicks! For this reason I hate to play the devil's advocate, but you may enjoy your car more on stock tires or ones with similarly matched grip. Otherwise, might as well trade for a ZLE and get the complete package at once. |
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