SCCA CAM-C Thread

[shogun32]

Happy to report that 295/35R19 RT660 are a basically perfect fit on 19x11 wheels

are they any good at HPDE or just autocross?

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[Brian@BMVK]

are they any good at HPDE or just autocross?

They're focused on autocross and time trial. Not gonna be long session durable like NT01 or R-S4, but won't crumble either. @boardkat used them this last weekend at Optima as well. They seem to hold up better than RE71R.

 

[TeeLew]

That might be more of the 615+ tire? I thought were meant to be more durable.

 

[kz]

Poor comparison but mounted Falken (on 11" wheel) vs unmounted (from the wheel Falken is on) Rival. According to my highly accurate eye they're about the same.

 

[TeeLew]

^^^ What sizes?

 

[kz]

^^^ What sizes?

305/30R19

 

[Brian@BMVK]

305/30R19

That means the Falken is a bit wider (which jives with the listed measures). Mounting pulls them in a bit.

 

[kz]

That means the Falken is a bit wider (which jives with the listed measures). Mounting pulls them in a bit.

I was little concerned if I don't end up needing more spacer in the front - haven't tried to put the wheel on yet but I highly doubt it. Curious to see how they will behave though. Another observation - Rivals after a fairly busy last season look surprisingly good.

I am considering getting 18" wheels (when Apex EC-7 are back in stock and Yokohamas) - Chad in Charlotte (who I was paired with in first session) was flying on them right off the bad (temperature was ~48F). Seeing him turn into the finish on opposite course about half an hour ahead of me was quite devastating ;-) (it's not just the tires though, he is really really fast).

 

[Brian@BMVK]

I was little concerned if I don't end up needing more spacer in the front - haven't tried to put the wheel on yet but I highly doubt it. Curious to see how they will behave though. Another observation - Rivals after a fairly busy last season look surprisingly good.

I am considering getting 18" wheels (when Apex EC-7 are back in stock and Yokohamas) - Chad in Charlotte (who I was paired with in first session) was flying on them right off the bad (temperature was ~48F). Seeing him turn into the finish on opposite course about half an hour ahead of me was quite devastating ;-) (it's not just the tires though, he is really really fast).

Hearing that the Falkens switch on well too, definitely better than Rivals in cool temps. I can't bring myself to go for Yoks with the wear rates on our cars.

 

[kz]

Hearing that the Falkens switch on well too, definitely better than Rivals in cool temps. I can't bring myself to go for Yoks with the wear rates on our cars.

I currently have too many wheels from FS times (5 sets total) so need to make good faith effort to get rid of some before I purchase another one...

 

[Brian@BMVK]

I currently have too many wheels from FS times (5 sets total) so need to make good faith effort to get rid of some before I purchase another one...

Boy I thought I had a lot with 3 sets...

 

[ShadesOfBloo]

I wonder if any aftermarket will copy this and if legal. And how the downforce compares.

More at https://www.speedcafe.com/2020/02/10/gallery-kelly-racing-castrol-mustang/?image=1

Downforce will benefit from the big front splitter and proper outlets for hot air. For those things, I think the aftermarket is 99% there.

Without the fake scoops at the corners, drag will be a little less than stock.
I, too, hope the aftermarket will take note.

 

[shogun32]

Downforce will benefit from the big front splitter and proper outlets for hot air

it it just me or are folks missing the kicked-in corners of the fender that provides extra depth to the splitter without having to resort to pushing it way past the front plane?

 

[Brian@BMVK]

Trying to figure out how this is CAM-C related...

 

[ShadesOfBloo]

it it just me or are folks missing the kicked-in corners of the fender that provides extra depth to the splitter without having to resort to pushing it way past the front plane?

My first thought was to look at it as what you get if you don't waste space on fake scoops.
I think downforce and drag both change for the better because of it.

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