Track forum general chit chat.

[b4hand]

Originally Posted by turbo_joe

Went to my first event with NASA Mid Atlantic over the weekend, set a personal best on Summit Main on Saturday (in video) and then beat that time by over a second running a 1.22.20 on Sunday (didn't have my Go Pro on)

What audio setup are you using to capture this? Your other in-car videos sound good too.

[OG Shark]

Originally Posted by Kelse92

Falken 660 will have 19" sizes for rhyary in Feb I'm thinking so one can dream! I want to know how they hold up on our heavy cars before I drop $1200 on a set of 275/315 staggered that are in stock right now

Do it Do it!

[turbo_joe]

Originally Posted by b4hand

What audio setup are you using to capture this? Your other in-car videos sound good too.

This video is just a GoPro 7 in a wide open case lol, for my in car videos I use a mic to my GoPro 8 and have the mic mounted inside my trunk

[b4hand]

Originally Posted by turbo_joe

This video is just a GoPro 7 in a wide open case lol, for my in car videos I use a mic to my GoPro 8 and have the mic mounted inside my trunk

What mic

[Kelse92]

Originally Posted by b4hand

What mic

Seconding this, I still have yet to even find a mic that will work with my 8 black without buying that MediaMod BS part

[derbo]

Originally Posted by Kelse92

Seconding this, I still have yet to even find a mic that will work with my 8 black without buying that MediaMod BS part

You can buy the hero7 USBC adapter and it works just fine btw.

[rhyary]

Originally Posted by OG Shark

Love it

Can I put in a request first that you please try to focus on the 180 and up TW segment this year? Particularly a comparison between say RS4 vs the falken 660 & Rival 1.5S in both performance & durability

None have attractive 19" sizes.
While I am not sure what tires I will be runing (mixed or single vendor) I will be focusing on these sizes, front, rear:
1. 285/30/19 295/30/19 or
2. 265/35/19 275/35/19

The lease expensive way to test the sizes will the Ecsta PS91 because it has both sizes.

The more expensive route would be MPSS

If the 265 275 prove to be competitive, it opens the floor to RE-71R, a reasonable priced tire. or the expensive R888R.

Will see, I still have to chew some tires I have in inventory

[dparm]

Originally Posted by rhyary

None have attractive 19" sizes.
While I am not sure what tires I will be runing (mixed or single vendor) I will be focusing on these sizes, front, rear:
1. 285/30/19 295/30/19 or
2. 265/35/19 275/35/19

The lease expensive way to test the sizes will the Ecsta PS91 because it has both sizes.

The more expensive route would be MPSS

If the 265 275 prove to be competitive, it opens the floor to RE-71R, a reasonable priced tire. or the expensive R888R.

Will see, I still have to chew some tires I have in inventory

Skip the 888. Ran a few sets and should've just jumped to the RR sooner.

[rhyary]

Originally Posted by dparm

Skip the 888. Ran a few sets and should've just jumped to the RR sooner.

Well....
I know the R888R common opinion.
I ran the R888R myself and was not impressed.

However..... it is a possibility that Toyo would be interested to work with me on tires. If that materialized the two options would be the RR or the R888R. The RR we know and like but I tried few times the front RR 235/35/19 and while fast, I am not willing to dial my camber from -3.5 to -2.0 so I can ran these. (At -3.5 I destroyed the inside of the 235 too quickly). Anyway the 235/35/19 Hoosier R7 did the same thing as the RR so I know it is not the RR, it is the size.

Moving on, the point is that I will only mount the R888R if I have a Toyo tire engineer making sure the tire is maximizing its potential. Otherwise I am not going on it on my own.

[DRLane]

Originally Posted by rhyary

Well....
I know the R888R common opinion.
I ran the R888R myself and was not impressed.

However..... it is a possibility that Toyo would be interested to work with me on tires. If that materialized the two options would be the RR or the R888R. The RR we know and like but I tried few times the front RR 235/35/19 and while fast, I am not willing to dial my camber from -3.5 to -2.0 so I can ran these. (At -3.5 I destroyed the inside of the 235 too quickly). Anyway the 235/35/19 Hoosier R7 did the same thing as the RR so I know it is not the RR, it is the size.

Moving on, the point is that I will only mount the R888R if I have a Toyo tire engineer making sure the tire is maximizing its potential. Otherwise I am not going on it on my own.

If you're destroying the inside then aren't you running too slowly for that negative camber setting?

What's the problem with reducing the camber as its not inherently beneficial to run excessive camber if it's not providing more contact patch grip?

Luckily there are real suggestions and insight below!

[OG Shark]

Originally Posted by rhyary

None have attractive 19" sizes.
While I am not sure what tires I will be runing (mixed or single vendor) I will be focusing on these sizes, front, rear:
1. 285/30/19 295/30/19 or
2. 265/35/19 275/35/19

The lease expensive way to test the sizes will the Ecsta PS91 because it has both sizes.

The more expensive route would be MPSS

If the 265 275 prove to be competitive, it opens the floor to RE-71R, a reasonable priced tire. or the expensive R888R.

Will see, I still have to chew some tires I have in inventory

Going to have to start stocking up soon on those RE-71Rs though if that is what you are building towards with the 265/275.

What wheel widths are you on?

[dparm]

A Toyo engineer? You can always call and ask for advice, I have done this with Hoosier and some others. Or do you mean you want them trackside to work with you?

[tsk94]

Originally Posted by rhyary

Well....
I know the R888R common opinion.
I ran the R888R myself and was not impressed.

However..... it is a possibility that Toyo would be interested to work with me on tires. If that materialized the two options would be the RR or the R888R. The RR we know and like but I tried few times the front RR 235/35/19 and while fast, I am not willing to dial my camber from -3.5 to -2.0 so I can ran these. (At -3.5 I destroyed the inside of the 235 too quickly). Anyway the 235/35/19 Hoosier R7 did the same thing as the RR so I know it is not the RR, it is the size.

Moving on, the point is that I will only mount the R888R if I have a Toyo tire engineer making sure the tire is maximizing its potential. Otherwise I am not going on it on my own.

What pressures were you running with the RR? I'm guessing you were running too low of pressures leading to that inside wear, the camber change sounds like a band-aid to fix the improper pressure. -2* sounds way to little for the RR's, I've run them a bunch and have been experimenting with pressures this past season. Running -3.5* to -3.9* (been playing with front camber as well), I've tried front pressures of 33-38psi hot. The RR's seem to prefer the upper range of that. Lower tire pressures were leading to irregular wear, outside or inside - depending on which camber settings.

I spoke with some Toyo engineers and they said for my car, given the weight, roughly the alignment settings, they recommended 38-40 hot - much higher then I initially started at which was 34 hot. Wear seems to have improved as I've gone up in pressure, more even across the tread. And the grip level seems to have stayed basically constant.

[dparm]

Directly from the Toyo website for the RR:

Operating Temperature: 160°F to 220°F
Hot Inflation Pressures: High 30s to Low 40s (psi)
Camber: -2.5° to -5.0°
Caster: As much positive as possible

So yes, if you are running less than 2.5 degrees of negative camber and/or your pressures are mid-30s or below, you are going to experience sub-optimal grip and/or wear. I didn't bump up my pressures at first on the RR and started to get inside wear. It evened out once I started shooting for 38ish as a peak temp.



R888R for comparison:

Operating Temperature: 160°F to 220°F
Hot Inflation Pressures: 32 to 38 (psi)
Camber: -1° to -3°
Caster: As much positive as possible

[Kelse92]

Originally Posted by rhyary

None have attractive 19" sizes.
While I am not sure what tires I will be runing (mixed or single vendor) I will be focusing on these sizes, front, rear:
1. 285/30/19 295/30/19 or
2. 265/35/19 275/35/19

The lease expensive way to test the sizes will the Ecsta PS91 because it has both sizes.

The more expensive route would be MPSS

If the 265 275 prove to be competitive, it opens the floor to RE-71R, a reasonable priced tire. or the expensive R888R.

Will see, I still have to chew some tires I have in inventory

The Falken should have Option 2 set for you coming. Their website lists 265/35/19, 275/30/19, 275/35/19, 295/3019, and 305/30/19

Don't forget that RE71r is being phased out and rt660 is similar but cheaper

Have you looked into the 220tw Goodyear Supercar 3? they have several 19" sizes too

[turbo_joe]

Originally Posted by b4hand

What mic

Originally Posted by Kelse92

Seconding this, I still have yet to even find a mic that will work with my 8 black without buying that MediaMod BS part

I have the media mod, it makes things a pain but it does allow me to run a type c to the camera and my mic, so it charges while on the track.

I use this Mic with a dead cat around it, its stuffed up inside my trunk (I dont have a trunk liner)

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

Here is a video using the mic

[rhyary]

Originally Posted by DRLane

If you're destroying the inside then aren't you running too slowly for that negative camber setting?

What's the problem with reducing the camber as its not inherently beneficial to run excessive camber if it's not providing more contact patch grip?

Luckily there are real suggestions and insight below!

reducing the camber is detrimental to 285 and 265 and I don't have suspension engineer changing the camber per tire mounted.

And as I said, I am narrowing down the sizes to 285/30/19 and 265/35/19

[rhyary]

Originally Posted by DRLane

If you're destroying the inside then aren't you running too slowly for that negative camber setting?

What's the problem with reducing the camber as its not inherently beneficial to run excessive camber if it's not providing more contact patch grip?

Luckily there are real suggestions and insight below!

I was doing my best times on the RR and R7 running in the 1:35.9 with the R7 and 1:36 with the RR despite the wrong size

[rhyary]

Originally Posted by OG Shark

Going to have to start stocking up soon on those RE-71Rs though if that is what you are building towards with the 265/275.

What wheel widths are you on?

9.5 front
10.5 rear

[rhyary]

Originally Posted by dparm

A Toyo engineer? You can always call and ask for advice, I have done this with Hoosier and some others. Or do you mean you want them trackside to work with you?

I can't expand on this yet.

[rhyary]

Originally Posted by tsk94

What pressures were you running with the RR? I'm guessing you were running too low of pressures leading to that inside wear, the camber change sounds like a band-aid to fix the improper pressure. -2* sounds way to little for the RR's, I've run them a bunch and have been experimenting with pressures this past season. Running -3.5* to -3.9* (been playing with front camber as well), I've tried front pressures of 33-38psi hot. The RR's seem to prefer the upper range of that. Lower tire pressures were leading to irregular wear, outside or inside - depending on which camber settings.

I spoke with some Toyo engineers and they said for my car, given the weight, roughly the alignment settings, they recommended 38-40 hot - much higher then I initially started at which was 34 hot. Wear seems to have improved as I've gone up in pressure, more even across the tread. And the grip level seems to have stayed basically constant.

>> I spoke with some Toyo engineers and they said for my car, given the weight, roughly the alignment settings, they recommended 38-40 hot - much higher then I initially started at which was 34 hot.


I got the same advice and ran pressure from 32 hot to 44 hot. I have tried the RR 235/35/19 multiple times with multiple settings. Trust me, for the price I tried many things many times.

[rhyary]

Originally Posted by Kelse92

The Falken should have Option 2 set for you coming. Their website lists 265/35/19, 275/30/19, 275/35/19, 295/3019, and 305/30/19

Don't forget that RE71r is being phased out and rt660 is similar but cheaper

Have you looked into the 220tw Goodyear Supercar 3? they have several 19" sizes too

Cool, I am on tire websites all the times trying to find new options