SCCA CAM-C Thread

[kz]

Anyone going to St Louis ? I've signed up even though I haven't touched the car for a while and it likely will be my first event of the season, so I am sure it'll go great...

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[TeeLew]

Which tire would you recommend that would last the longest dailying and racing? Looking for a decent price/performance, saw Firestone 500s for a massive discount in 285/30/19s near me. And by massive I mean $250 a tire.

The more suggestions the better, having not tried different tires ever yet. Tires are a new subject to me, but I don't want to blow the bank.

I run these on the street on PP wheels. You can put 285's on an 11, but they might be a bitch to get to bead. They're fine tires for what they are. I've got something like 30k on mine.

They're fine in the rain. Nothing silly has ever happened and I've driven in plenty of it.

Ride is better than the stock Pirelli's mine came with.

They deal a lot better with low temperatures than the Pirelli's. They don't turn into a Crayola crayon at 40 deg F.

Tire grip is fine for a performance tire, but it's not a competition tire by any stretch of the imagination. It's a mid-range street tire. When you hustle them, the sidewall is too soft and the grip level is only average. Breakaway is predicable and the tire gives you a lot of warning through the seat and with noise. If you want to take them to the track, you'll be well off pace of a track tire. If it's an HPDE day, you decide if that's an issue. If it's on the street, I can't see how it could possibly matter. You've got to be really asking a lot of the car on the street before these things start to be you limiting factor.

One bad thing is that they're too damned loud. At 25mph, they have an annoying drone. It's better at highway speeds, but it's still there.

It's all a compromise, at $250 a pop, that makes them pretty attractive.

 

[CobaltFilly]

I run these on the street on PP wheels. You can put 285's on an 11, but they might be a bitch to get to bead. They're fine tires for what they are. I've got something like 30k on mine.

They're fine in the rain. Nothing silly has ever happened and I've driven in plenty of it.

Ride is better than the stock Pirelli's mine came with.

They deal a lot better with low temperatures than the Pirelli's. They don't turn into a Crayola crayon at 40 deg F.

Tire grip is fine for a performance tire, but it's not a competition tire by any stretch of the imagination. It's a mid-range street tire. When you hustle them, the sidewall is too soft and the grip level is only average. Breakaway is predicable and the tire gives you a lot of warning through the seat and with noise. If you want to take them to the track, you'll be well off pace of a track tire. If it's an HPDE day, you decide if that's an issue. If it's on the street, I can't see how it could possibly matter. You've got to be really asking a lot of the car on the street before these things start to be you limiting factor.

One bad thing is that they're too damned loud. At 25mph, they have an annoying drone. It's better at highway speeds, but it's still there.

It's all a compromise, at $250 a pop, that makes them pretty attractive.

Thanks for taking the time to write such an awesome explanation for me! 100% taking everyone’s advice and going to keep my 17s with the Michelin All Seasons for daily use, and swap on the 19s with a fat boy tire for other. Found a storage space in my office next to the pc so during winter online work I can stare at my pretty 19s…

 

[NightmareMoon]

Thanks for taking the time to write such an awesome explanation for me! 100% taking everyone’s advice and going to keep my 17s with the Michelin All Seasons for daily use, and swap on the 19s with a fat boy tire for other. Found a storage space in my office next to the pc so during winter online work I can stare at my pretty 19s…

Good call. In that case you're options are the new 305 Bridgestone, and the 295 Yokohama for the 19" track toy tires. Both are kinda great. Storing them indoors and bagging them when possible will really help them stay sticky.

Down the road you can get a fancier street wheel/tire setup, but staying with street all-seasons (or summers) is a better option if you're using the car on a regular basis.

 

[mavisky]

Thanks for taking the time to write such an awesome explanation for me! 100% taking everyone’s advice and going to keep my 17s with the Michelin All Seasons for daily use, and swap on the 19s with a fat boy tire for other. Found a storage space in my office next to the pc so during winter online work I can stare at my pretty 19s…

I made the 200 tw recommendations I did because I assumed you would be dailying on the 17's or something. I personally daily on a set of PS4S, but depending on climate a set of Pilot All Seasons would be a great option too.

 

[CobaltFilly]

Good call. In that case you're options are the new 305 Bridgestone, and the 295 Yokohama for the 19" track toy tires. Both are kinda great. Storing them indoors and bagging them when possible will really help them stay sticky.

Down the road you can get a fancier street wheel/tire setup, but staying with street all-seasons (or summers) is a better option if you're using the car on a regular basis.

summit racing impressed me. $80 cheaper than anyone else. Received within 24 hours.

The build begins:

 

[NightmareMoon]

summit racing impressed me. $80 cheaper than anyone else. Received within 24 hours.

The build begins:

Right, except I’m pretty sure you needed the 1” longer than stock, not the 1/2 longer ones.

 

[CobaltFilly]

Right, except I’m pretty sure you needed the 1” longer than stock, not the 1/2 longer ones.

Welp. I thought 100-7732 was the number most said in forum. Its a 3” long. 🫣

 

[NightmareMoon]

Welp. I thought 100-7732 was the number most said in forum. Its a 3” long. 🫣

100-7733 is the 1” longer stud for use with 25mm spacers. You needed the 3.4X” long ones.

 

[mavisky]

A 25mm spacer is approximately 1" so you need the 1" longer studs.

 

[CobaltFilly]

Pain.

 

[CobaltFilly]

100-7733 is the 1” longer stud for use with 25mm spacers. You needed the 3.4X” long ones.

https://www.summitracing.com/parts/arp-100-7733

So i don't make the same mistake. 2 sets of these correct.

 

[WItoTX]

https://www.summitracing.com/parts/arp-100-7733

So i don't make the same mistake. 2 sets of these correct.

Just my two cents, OP Mustang is my go-to for stuff like this. Their customer service is one of the best, and they've built a lot of mustangs, and have tons of experience. But they do cost more usually. IMO, worth it. Because I make mistakes no one would think to make

 

[CobaltFilly]

Just my two cents, OP Mustang is my go-to for stuff like this. Their customer service is one of the best, and they've built a lot of mustangs, and have tons of experience. But they do cost more usually. IMO, worth it. Because I make mistakes no one would think to make

Understood. I just ordered these ones since the part # matched what Nightmare said.

Should I keep the 1/2"ers? They are $13 to return and I am so miffed at myself.

I feel very old in this moment.

I think I will keep and put on the rears later on for increased stud strength/if I need/want spacers in rear later on.

 

[WItoTX]

Understood. I just ordered these ones since the part # matched what Nightmare said.

Should I keep the 1/2"ers? They are $13 to return and I am so miffed at myself.

I feel very old in this moment.

I think I will keep and put on the rears later on for increased stud strength/if I need/want spacers in rear later on.

I'd keep them personally, assuming they were under $100. Worst case, you can always sell them yourself.

I still run stock studs on the rear with open end lug nuts. No real reason to swap them unless you need to. (Someone will come along and tell me why I'm wrong, it isn't the first time)

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