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@svcjmoDo you leave your camber at the "track" setting for daily use too? I'm going to likely track the car every few months and drive it 10k miles a year. How are the driving dynamics for highway use with the track camber settings? Also did you post the youtube video by chance?
I would not recommend GM's C8 track settings for street use. -3 and -2.5 are what I ran on my full C5 racecar with Hoosiers (Front -3.2, rear -1.8 as C5s were camber limited in the rear). On a dual use car I wouldn't go much over -2 camber in the front and -1.5 rear. I ran this on my C7 and got 8-10K miles out of tires, but I drove that car on the street a ton and road tripped it with my track alignment. For the C8 I plan to do -1.5 front and -1ish rear with 0 toe all around and just let the chips fall where they may.
@Tool Hoarder Thanks for the feedback, I summarized what you plan on doing for your dual purpose (Track/Street) C8, can you confirm below? I'm also going to lower the front and rear suspension all the way down, hopefully that's possible to also align the car to these specs.
Front: Caster +8, Camber -1.5, Toe 0
Rear: Caster 0, Camber -1.0, Toe 2, Thrust Angle 0
@Tool Hoarder Thanks for the feedback, I summarized what you plan on doing for your dual purpose (Track/Street) C8, can you confirm below? I'm also going to lower the front and rear suspension all the way down, hopefully that's possible to also align the car to these specs.
Front: Caster +8, Camber -1.5, Toe 0
Rear: Caster 0, Camber -1.0, Toe 2, Thrust Angle 0
OEM Track Specs
Fixed your typo on rear toe and added a front caster range. I don't intend to touch the UCA washers at all. Won't need to to get my desired camber specs.
Front: Caster +6 to +8, Camber -1.5, Toe 0
Rear: Caster 0, Camber -1.0, Toe 0, Thrust Angle 0
Last edited by RapidC84B; May 8, 2020 at 10:54 AM.
@Tool Hoarder Thanks for correcting the typo. I wonder if we can run this by anyone else to verify this is a good camber setup for a dual purpose street/track/highway car? When you say not touching the UCA washers, with this suggested camber setting you won't need to touch them but for the GM track spec camber, you would?
@Tool Hoarder Thanks for correcting the typo. I wonder if we can run this by anyone else to verify this is a good camber setup for a dual purpose street/track/highway car? When you say not touching the UCA washers, with this suggested camber setting you won't need to touch them but for the GM track spec camber, you would?
Been doing this since 2002... I don’t need to ask anyone. Owned 5 Corvettes, tracked them all, race and instruct with NASA-MA.
I can achieve my desired dual-purpose camber settings using the LCA eccentrics only. To get more you have to remove the UCA washers to move the UCA inward and lay the upright in more.
GM’s track alignment is a hardcore race alignment not suitable for street use. You’ll cord tires in 5K miles.
Been doing this since 2002... I don’t need to ask anyone. Owned 5 Corvettes, tracked them all, race and instruct with NASA-MA.
I can achieve my desired dual-purpose camber settings using the LCA eccentrics only. To get more you have to remove the UCA washers to move the UCA inward and lay the upright in more.
GM’s track alignment is a hardcore race alignment not suitable for street use. You’ll cord tires in 5K miles.
I'll take your word for it and go with the dual purpose specs, thank you! I'm also going to lower my car all the way and install the Cicio drop spindle on the front since I have the lift, hopefully that has no affect on the alignment abilities?! I'm also looking forward to burning out the stock tires and upgrading to Cup 2's, they're fantastic from my experience with Porsches : )
Front: Caster +6 to +8, Camber -1.5, Toe 0 Rear: Caster 0, Camber -1.0, Toe 0, Thrust Angle 0
Had the dealer do the track prep this week. Also flushed brake fluid with Castrol and did an oil change. Took over a day, but they got the alignment spot on. Can definitely feel the difference while cornering. Not worried about the alignment on the street, because I plan to track it quite a bit. Now, all I need is an open track. Had 5 cancellations so far.
I'll take your word for it and go with the dual purpose specs, thank you! I'm also going to lower my car all the way and install the Cicio drop spindle on the front since I have the lift, hopefully that has no affect on the alignment abilities?! I'm also looking forward to burning out the stock tires and upgrading to Cup 2's, they're fantastic from my experience with Porsches : )
Front: Caster +6 to +8, Camber -1.5, Toe 0 Rear: Caster 0, Camber -1.0, Toe 0, Thrust Angle 0
All depends on your budget for tires and desired mileage. There are better alignments, but you have to decide how many miles you want out of a set of tires on the street. Toe is the real tire killer. On my racecar I run a smidge toe out front (1/16” a side) and the same toe in on the rear. GM recommends a tiny bit of toe in all around.
I'll take your word for it and go with the dual purpose specs, thank you! I'm also going to lower my car all the way and install the Cicio drop spindle on the front since I have the lift, hopefully that has no affect on the alignment abilities?! I'm also looking forward to burning out the stock tires and upgrading to Cup 2's, they're fantastic from my experience with Porsches : )
Front: Caster +6 to +8, Camber -1.5, Toe 0 Rear: Caster 0, Camber -1.0, Toe 0, Thrust Angle 0
As a Porsche guy you probably know that one of the very best modifications you can make for track and street purposes is adding a DSC suspension controller. I had one on my C7 Z06/7 and it is the best $1,200 you can spend. But the recommendation is that you maintain the OEM ride height so that the shocks can actually work best within the parameters set by the controller. Hence you might want to reconsider dropping the C8 all the way down on the stock adjusters should you think about getting a DSC:
Call me crazy, but I have noticed that having the track alignment, has negatively affected the handling dynamics on the street. In spirited cornering on the street, the cornering sensation seems more sedate. It feels like I’m not pulling the same lateral load, but the G meter says I am. I think what’s happening is that with the standard camber, the tire is rolling over on the shoulder, and you get a nice road feel from this. The stiff sidewall of the run flats only accentuates this, and it really is a nice sensation. I don’t feel this with the track alignment, because the tire is flatter in the corner. Of course this works to your advantage on the track, and will allow for higher speed cornering, but it lessens the experience on the street, at least that’s what I’m experiencing. So in addition to accelerated inside tire wear, this might be another liability of running a track alignment on the street.
I ran the DSC track alignment settings 100% of the time; so 70% street driving. Never had an issue with accelerated tyre wear, specifically inner tyre wear. As others have mentioned, watch your tow settings.
All depends on your budget for tires and desired mileage. There are better alignments, but you have to decide how many miles you want out of a set of tires on the street. Toe is the real tire killer. On my racecar I run a smidge toe out front (1/16” a side) and the same toe in on the rear. GM recommends a tiny bit of toe in all around.
@Tool Hoarder I'm not too worried about tire wear and replacement, I usually get 2-3 track days out of a set anyways and I try to go every 2-3 months so call it 9 months out of a set of tires over 5-8k miles. Overall I'd like the alignment to be optimal for driving on the track, canyon carving, and cruising on a road trip. I was in the canyons yesterday in Angeles Crest and in the tighter corners, the C8 has a LOT of understeer compared to my GT4. I hope an alignment can fix that a bit.
Originally Posted by bobgolub@hotmail.com
Had the dealer do the track prep this week. Also flushed brake fluid with Castrol and did an oil change. Took over a day, but they got the alignment spot on. Can definitely feel the difference while cornering. Not worried about the alignment on the street, because I plan to track it quite a bit. Now, all I need is an open track. Had 5 cancellations so far.
@bobgolub@hotmail.com Where are you located and what did your dealer charge for the track prep?
Originally Posted by thebishman
As a Porsche guy you probably know that one of the very best modifications you can make for track and street purposes is adding a DSC suspension controller. I had one on my C7 Z06/7 and it is the best $1,200 you can spend. But the recommendation is that you maintain the OEM ride height so that the shocks can actually work best within the parameters set by the controller. Hence you might want to reconsider dropping the C8 all the way down on the stock adjusters should you think about getting a DSC:
@thebishman I've heard about that DSC controller and I'm going to look into it. In regards to lowering the car, even the Chevy track prep guide instructs to lower the car 0.8" or somewhere around that. I'll need to contact DSC when their unit is available to get more details.
I’m in Northern Va. Had the work done in Warrenton, VA. For adding the 2 quarts of tranny fluid, track alignment and brake flush (I supplied the brake fluid), it was just over 900. However, it was actually more than that, but they cut me a break to keep in line with their estimate. It took a lot longer than they expected, because it was the first one they had done, and the procedures are more labor intensive. This shop does have a lot of experience with prepping Corvettes for the track. In the future they plan to charge more.
Last edited by Egoncool; May 10, 2020 at 02:08 PM.
I’m in Northern Va. Had the work done in Warrenton, VA. For adding the 2 quarts of tranny fluid, track alignment and brake flush (I supplied the brake fluid), it was just over 900. However, it was actually more than that, but they cut me a break to keep in line with their estimate. It took a lot longer than they expected, because it was the first one they had done, and the procedures are more labor intensive. This shop does have a lot of experience with prepping Corvettes for the track. In the future they plan to charge more.
This was pretty much my exact experience also, but down in Houston, TX.
Took mine over to my trusty suspension guy a few weeks back and he agreed that the GM track setting would be a bit harsh on tires for street driving so he gave me a setting pretty much in the middle/in-line with what Rapid posted above. I had the car at Nurburgring this past weekend and there was ZERO understeer, the car felt great everywhere at the 75-80% I was pushing it. Tracks good on the highway too, didn't seem darty or floaty at speeds over 150-160ish.
As for the DCT fluid, I did that myself. It looked and felt sketchy as hell jacking that rear corner up so high but everything went in and seems fine so far. When I first took the plug out, I didn't have the car lifted high enough and lost a few ounces before I could get a few extra pumps on the jack. When I started filling, I had a buddy standing by to give me a few extra pumps when it started to get too full. At the end of the day, I measured 42cm from ground to bottom of rotor to be able to fill it with the extra 2ltrs.
