[PLF69]

Originally Posted by Datka

Your tires survived 6 days on this car without camber plates?
I am very surprised tbh. What run groups are you running in?
I was as fast or faster than m2 comp. with my f30 340i so I believe you that this car is faster if properly modded.

Don't get me wrong I could of destroyed them in 2 days if I have pushed but I knew there was no point with OEM camber, it's like driving on skinny spare tires when you have 0 to -0.5 of camber.

On two occasions I even swaped front to back mid-day to even the wear, I did what I could for them to last my short season. (newborn in July)

It is a heavy car but nowadays unless you get back to a true sports car all comparably sized sedans are in the 3800-4100lbs range so it seems a bit pointless arguing to all ends like they do on the G80/82 forums about weight and all..

[Datka]

Originally Posted by McSampa

Well, I may have overdriven the front drive side tire a little bit.... This is a product of 2 track days and 1 autoX day. Camber plates made a ton of difference on grip, but as you can see, tire wear is not even

So after reading this post again, I think this guy was trying to say "camber plates would have made a ton of difference on grip".
Other vise this doesn't make sense
No way his tires would have looked like that with camber plates set to sufficient negative camber.

[McSampa]

Originally Posted by Datka

So after reading this post again, I think this guy was trying to say "camber plates would have made a ton of difference on grip".
Other vise this doesn't make sense
No way his tires would have looked like that with camber plates set to sufficient negative camber.

Hello Datka,
Please see Camber Plate pic attached...
I had another Autox session last Friday and I was very carefull to find the right corner speed and not overdrive the front tires... that resulted in reasonable tire wear and helped being on power early, made the car tail happy and me even happier... (not Xdrive)

The tire pic I posted earlier was a product of 1 track day before camber plates, 1 track day after camber plates and 1 Autox session. All of it in South Florida heat while overdriving the fronts, may that tire RIP.

Anyway, here is a link for camber plates:
https://vorshlag-store.com/collectio...-80-suspension

I'm still thinking about upgrading to wider fronts, hopefully before the next Autox event.

[Datka]

Ok McSampa. Thanks for clarifying things.
So I was right, you did damage your front tires before installing the c.plates.
According to Vorshlag website only -2.5 front camber can be achieved with these c.plates due to the tight constraints of the factory strut tower and the large diameter of the OEM spring.
This means we cant use r-compound tires without replacing stock suspension with coilovers. Moving to a coilover spring/strut combo allows for considerably more camber travel due to the smaller diameter of various coilover spring 60mm vs OEM 120mm.
Fastest r-compound tires require at least 3.2 negative camber upfront from my experience.
I am not planning to replace stock suspension and with these c.plates will be limited to use only street tires. And I am not sure -2.5 camber up front is enough even for street tires on such a heavy car.
I would love to be wrong and don't want to sound too negative, but hopefully someone can tell us more about this issue.

[PLF69]

Originally Posted by Datka

This means we cant use r-compound tires without replacing stock suspension .
Fastest r-compound tires require at least 3.2 negative camber upfront from my experience.

This is not absolutely true, yes R it's better to use more camber on R comps because they grip so much that they shift even more weight outside but it's really dependent on your driving.

Originally Posted by Datka

I am not planning to replace stock suspension and with these c.plates will be limited to use only street tires. And I am not sure -2.5 camber up front is enough even for street tires on such a heavy car.

I agree -3,-3.5 would be even better but -2.5 strikes a nice balance between track and street duty. With the advent of new tire compounds there are excellent "Streetable" tires to choose from in the 200tw and lower spectrum. Some are even faster than older R comps.

Originally Posted by Datka

I would love to be wrong and don't want to sound too negative, but hopefully someone can tell us more about this issue.

I'll update on my setup, I have Millay street plates on the shelf I need to test fit + just ordered H&R sway bars

[G30M]

the PS4S treads are designed to clear water, there is so much blank space in place of missing rubber needed rotate the front at high speeds. look at nankang ar1. https://www.tyrereviews.com/Tyre/Nankang/AR-1.htm

also 225 is way too narrow. my ex subaru wrx which is much lighter needed 245 to rotate

[Gtrny]

Im think about order set of R888R ,
Anyone tried 245/35/19 Toyo R888r ? 19x8.5 +28
Just want make sure not rubbing issue

Thanks

[RdRacer301]

Bit a noob to the forum but have a bit of experience with track events/track setups. I haven't had the chance to check out the suspension geometry of G20s but is adding shims to lower control arm for more camber a possibility? May be another way to add more camber in lieu of/in addition to camber plates.