[Badmojo]

Originally Posted by TrackClub

Did ya run RE71R square in 295/30/20? I did like them myself (unlike Cup2s which chunked on me and were very pressure sensitive), but found them lacking rear grip in fast sweepers at Mosport. The car was just a wee bit looser (not a surprise) which i did not like in T2 and T4.
It still went fast, but prevented me from pushing with full confidence. All in all, not worth spending extra $500. Albeit venue dependent i am sure. Having said all that, i do have a new set for this season, so will run them again. But likely not at Mosport...

Square 305-30-19 setup on 19x11 Apex wheels. This upsized the fronts and kept the rears the same width. I felt more grip everywhere. They come up to temp on the first lap and begin to fall off after that. The GYSC3's take more time to get to optimum temp, but take 10+ laps to fall off. RE71R's also did better with lower pressures (26-27 psi cold).

[TrackClub]

Originally Posted by canadian_roger

BMW Trillium Club @ Mostport? That is my home track also and I usually run every weekend with BMW, this year I will miss April due to work What kind of times do you see?

Yessir
Go to the Best Track Times sticky above for my PBs at local venues. Ps more work needed at Calabogie especially!

[TrackClub]

Originally Posted by Badmojo

Square 305-30-19 setup on 19x11 Apex wheels. This upsized the fronts and kept the rears the same width. I felt more grip everywhere. They come up to temp on the first lap and begin to fall off after that. The GYSC3's take more time to get to optimum temp, but take 10+ laps to fall off. RE71R's also did better with lower pressures (26-27 psi cold).

Yes i have noticed the same observations re coming up to temps etc. But ran them 295 on stock rims. Thanks!

[canadian_roger]

Looks like many people run 19x10.5's to accomplish 305 square setup on the SS 1LE. 5mm spacer up front and the right camber.

Sound about right? I imagine you save a couple pounds with the APEX over stock (4-5lbs at each corner of rotating mass)?

[JeffFox]

Welcome,

Here is my $.02 worth. Try the Recaros out, I hear they are great. FYI I am 6'3'' and fit (snuggly) with helmet on in my 2SS with Sunroof so I believe you will be OK. If you do get different seats you can post the Recaros for sale on this forum, pick up a few dollars, save on storeage space and make a fellow forum member happy.

Harness Bar hmmm.... I do not know but have been told by a member of this forum that a harness bar is a no no without a roll cage, especially true for taller drivers. Logic is that if the car winds up on its roof the harness bar will turn your back and neck into a very weak pillar with potential grave damage to your spinal cord. Perhaps another member has more info on this????

The stock Brembo pads are highly regarded. Take a look through the brake and suspension subsection of the forum for more on this. Lots of dust but good stopping power seems to be the thought of many forum members.

Enjoy the car and stay safe.

Jeff

[TrackClub]

Originally Posted by canadian_roger

Looks like many people run 19x10.5's to accomplish 305 square setup on the SS 1LE. 5mm spacer up front and the right camber.

Sound about right? I imagine you save a couple pounds with the APEX over stock (4-5lbs at each corner of rotating mass)?

Yep you got it pretty correctly, albeit strut grinding may also be required to achieve maxed camber. This is the only practical Apex square set up that permits switching up wheels F to R to achieve max tire longevity. Note that other square set ups also are in use, but with different ETs F vs R.

A couple of thoughts for ya: i know of some folks that like the set up and it suites them. I also know folks that find it oversteery and who already have, or are planning on going with different sway bars to make it more neutral. Dont know your experience level, or what balance you like, so just an fyi. Basically, any square set up from Apex will increase F track width either a bit, or quite a bit - which will promote a looser car by design. Lower rake will compensate for it a wee bit, but likley not completely.
Also, you will double up tire size in F (from stock) while decreasing a contact patch in the R as the wheel is 10.5 vs 11 as in stock. Just listing the stats here vs trying to poo poo the idea per se. Also this is sans any first hand experience, so please note it as such. I would just not assume that square automatically equals more pace, necessarily.

Another thought is this: stock, the car is very well balanced and frankly that's what makes it so damn special. Even Randy Pobst (who doesnt BS) freely admitted it and praised the car's FRONT grip. Just saying it so that you know just how good this car is out of the box and really nothing has to be done to make it great. It already is!
It will be worth your while to peruse the Best Track Times and see how stock 1le does vs modded ones at various tracks. PS Obviously stickier tires will make it faster, as with any car.

Back to my musings, Apex did make a nice combo early on, but for some reason discontinued it: 19x10.5 et22 matched with 19x11 et25. Interestingly enough, one of the very first (if not the first) adopters of Apex rims, an old membef here (and he is back again!), Cem, went with this set up very early on.
The above has the R track width just marginally wider by 3mm, while permitting to run 305 square, or staggered 305/325. WHY Apex discontinued the 11 inch et25 rear rim is beyond me. They would have had my money by now...But that's a different discussion...

Take her out stock a good few times and see what's what. I can guarantee you will have a big grin on after your very first stint! This car is easy to push (by a driver with experience), provides fantastic feedback and is very much capable of chasing some seriously uber cars! Then, if you wish: mod away! But do give her a chance to wow you right out of the box lol!

Lastly, per the post above post, personally, i would exercise caution wrt a harness bar. As much as i would not hesitate to have one is say a C5Z (because of roof construction) i would absolutely not put one in a Camaro (because of roof construction). But that's about my head Cheers!

[canadian_roger]

Thanks for the feedback everyone. I can promise everyone I will go out stock (with upgraded brake fluid) and wear out the OEM pads/tires initially.

Square setup I found great in my mustang from a rotating tire/consumption perspective, however, I will see what sense once I am through the stock tires.

I had heard the arguments against a harness bar before. However, what makes the Camaro a bad candidate vs. say a C6Z or C5Z? My thinking is newer, more substantial B pillar etc. make it a better candidate? Can we not count on the seat to support the root at all?

[TheRealJA105]

Everyone forgot the 40w Dexos 2 oil that is recommended/required for track warranty.

[canadian_roger]

Required you say. That is interesting, are all OEM fluids required for track warranty?

Where can you find 0w40 dexos2 oil on the interwebs?

[TrackClub]

Originally Posted by TheRealJA105

Everyone forgot the 40w Dexos 2 oil that is recommended/required for track warranty.

Post #3

[TrackClub]

Originally Posted by canadian_roger

Required you say. That is interesting, are all OEM fluids required for track warranty?

Where can you find 0w40 dexos2 oil on the interwebs?

In Mechanical Maint section there is a sticky on Camaro oils. Ive updated it recently. Read my original (first) post in the thread. The owner's manual is very clear as to using approved fluids to maintain warranty, which includes proper GM Dexos standard for oil Just imo no point of arguing about it, as GM warranties the car for track duty with (usually) no questions asked for 5 yrs. Fyi ive been using Valvoline 5w40 which used to be Dexos2 but the recipe has changed and it no longer is. So will be using Mobil1 0w40 EST Formula Dexos2 which GM now uses as factory fill. Everything else fluid wise i use per the manual specs. Plus SRF.

There is also a sticky in the 1le section about PTM modes. Again, read the original post.

Just a quick comment about the tires: zero question a square set up aids longevity and permits very long lasting (and fast) tires like RS4s to be used. I think Provoste used a set per season (or close to it) and he tracks tons. Just made my comments above to indicate the car doesnt need a square set up for fast pace. Recent times by Provoste with stockers at VIR and all times by RealJA and several others clearly show it. All i meant to say is know where you are starting from handling wise before applying changes. Each model of Camaro has differences in suspension and even ediff calibrations, so keep that in mind. Enuf said.

Onto the roof: both C5 and C6 had an effective roll bar built into their roof structures, as part of the unibody design (or whatever other name is technically correct here). Ive personally seen a local c6z after a very violent rollover at the Glen (bus stop), which totalled the car, yet the B pillar didnt collapse and the driver walked away.
This changed (apparently) with a c7 design. Camaro roof is much longer, with much longer side glass and as far as i know only received "marginal" rating. But it has been a few years since i researched it, so i am ready to stand corrected.

[JeffFox]

Originally Posted by TheRealJA105

Everyone forgot the 40w Dexos 2 oil that is recommended/required for track warranty.

There is a great piece from Al Oppenheiser former chief Camaro Engineer in the Ask Al section on this forum. Worth the read.

0-W40 Dexos 2 to is approved for track and street use in NA (normaly aspirated ie not supercharged) Gen 6 v8 Camaros. This is great because you can use a single oil for both purposes and avoid the cost and hassle of changing oil each time you go from street to track use and vice versa. I believe the 2019 LT1 engines came with this oil from the factory. OP check the oil filler cap when you pick up the car. If it says 0-W40 Dexos 2 you are good to go. Just follow the owners manual as for how often to change the oil.

Hope someone with more knowlege can guide you on the harness question.

Jeff

[TrackClub]

Originally Posted by JeffFox

There is a great piece from Al Oppenheiser former chief Camaro Engineer in the Ask Al section on this forum. Worth the read.

0-W40 Dexos 2 to is approved for track and street use in NA (normaly aspirated ie not supercharged) Gen 6 v8 Camaros. This is great because you can use a single oil for both purposes and avoid the cost and hassle of changing oil each time you go from street to track use and vice versa. I believe the 2019 LT1 engines came with this oil from the factory. OP check the oil filler cap when you pick up the car. If it says 0-W40 Dexos 2 you are good to go. Just follow the owners manual as for how often to change the oil.

Hope someone with more knowlege can guide you on the harness question.

Jeff

0w40 dexos2 is good for all LT1 and LT4 (supercharged) Camaros for both street and track, with the exception of ZL1 1LE (due to possible pick up issues due to its tires/aero and G rates) which requires a thicker oil for track duty.

[TheRealJA105]

Originally Posted by TrackClub

Post #3

Ooops

Originally Posted by TrackClub

C6 had an effective roll bar built into their roof structures, as part of the unibody design (or whatever other name is technically correct here). Ive personally seen a local c6z after a very violent rollover at the Glen (bus stop), which totalled the car, yet the B pillar didnt collapse and the driver walked away.

that must have been a huge screw up, glad he walked away.

Originally Posted by JeffFox

There is a great piece from Al Oppenheiser former chief Camaro Engineer in the Ask Al section on this forum. Worth the read.
0-W40 Dexos 2 to is approved for track and street use in NA (normaly aspirated ie not supercharged) Gen 6 v8 Camaros. This is great because you can use a single oil for both purposes and avoid the cost and hassle of changing oil each time you go from street to track use and vice versa. I believe the 2019 LT1 engines came with this oil from the factory. OP check the oil filler cap when you pick up the car. If it says 0-W40 Dexos 2 you are good to go. Just follow the owners manual as for how often to change the oil.
Jeff

Yeah if all the new cars come with the 0-w40 Dexos 2 oil that is a bonus. You can even use the 2 free oil changes for track day oil.