SCCA Autocross Class for the Model 3

[TexasTeslaRacing]

Stitched together the four videos from the car camera. I was going to overlay the performance data from the csv file but it didn't save. Next time I'll have the data.

 

[Zextraterrestrial]

That's a long way for Los Altos! I want to do it, but I cringe at the 11 hours drive...

I'm in Humboldt fortunately...but from Los Altos. It was about 71/2 hrs for me on the way back after racing.
little longer going up the coast on the way but so amazingly pretty!

 

[Zextraterrestrial]

anyways...this happened
King Of The Hill! ... I want Tesla sponsorship for a cage

Subaru that was saving some for Sunday blew up and I just beat his Saturday time!

a few of the cars in this clip that should have beat me probably...strangely I got to see them all get messed up!??
the 2 Z06 SSM vettes and RX7/LT1 XP car/ + Subi

 

[RacerChris]

For sure, SS is hot around here. Ben is a great driver and when he showed up to drive Eric's GT3 I knew I was in trouble, I prefer him to stay in SSR with his GS lol. Colton in his SS Alfa 4C was up running with the Finger Lakes region this past weekend or I'm sure I woulda gotten smacked around by it too lol.

I'm thinking of going to ASP just because there are slower people there... LOL

I had seen some discussion on the roadrace and autox forum about the EV-X class - If the SCCA has this in solo next year, that could be really cool depending on the rules (right now it is "experimental" - all I can gather). Anyway, the suggestions are to basically allow the car to be in street-touring trim (f/r sways, coilovers, wider wheels, I believe they were suggesting allowing different A-arms)... with a PAX that is only .002 higher than SS right now. IF it plays out that way, that could be the hot ticket in my opinion.

 

[Zextraterrestrial]

I had seen some discussion on the roadrace and autox forum about the EV-X class - If the SCCA has this in solo next year, that could be really cool depending on the rules (right now it is "experimental" - all I can gather). Anyway, the suggestions are to basically allow the car to be in street-touring trim (f/r sways, coilovers, wider wheels, I believe they were suggesting allowing different A-arms)... with a PAX that is only .002 higher than SS right now. IF it plays out that way, that could be the hot ticket in my opinion.

would wider wheels help? can you fit 285 or 305 REs w/ out fender mods
F& R sway + suspension would definitely make the 3 dominate PAX even more

 

[RacerChris]

I THINK we can get up to a 295 (I thought I saw that somewhere on here) without rubbing but we'd need to verify. A wider wheel would definitely help support a larger tire. If EV-X was set up like a Street Touring class per SCCA, they would limit our tire width. I would hope that we could be able to go up to a 285-width (seems like a fair width based on the increased weight EV cars deal with).

 

[Zextraterrestrial]

Is anyone running SSR?
I'm getting another set of wheels to run SSR class for the next hill climb...because #winning Planning on 18"X8.5" with 275 A7s
Would that be best or 19" 265s?

 

[Mash]

Is anyone running SSR?
I'm getting another set of wheels to run SSR class for the next hill climb...because #winning Planning on 18"X8.5" with 275 A7s
Would that be best or 19" 265s?

9.5 for 275 maybe. I run 275 on 19x9.5.

 

[Mash]

I THINK we can get up to a 295 (I thought I saw that somewhere on here) without rubbing but we'd need to verify. A wider wheel would definitely help support a larger tire. If EV-X was set up like a Street Touring class per SCCA, they would limit our tire width. I would hope that we could be able to go up to a 285-width (seems like a fair width based on the increased weight EV cars deal with).

295 won't fit without wider fenders, I believe.

 

[Zextraterrestrial]

9.5 for 275 maybe. I run 275 on 19x9.5.

A7?
A 265 RE71Fits 8.5” 19”...similar specs except diameter & has more tread.
Does anyone run 275 A7 o 18”. 8.5”?

 

[TexasTeslaRacing]

A7?
A 265 RE71Fits 8.5” 19”...similar specs except diameter & has more tread.
Does anyone run 275 A7 o 18”. 8.5”?

I run Hoosier A7 285/30/18 on a 10.5” rim. +25et. Runs like a beast.

 

[Zextraterrestrial]

I run Hoosier A7 285/30/18 on a 10.5” rim. +25et. Runs like a beast.

Sounds fun! I’m trying to stay in a stock class though. Either 18 or 19” x 8.5”

 

[RacerChris]

295 won't fit without wider fenders, I believe.

Very good to know! A 285 square setup would be a huge improvement over the 255's I'm running now or a pinched 265.

 

[SK360]

3rd in RAW, 3rd in PAX, 2nd in SS today. Was chasing the 19 GT3 in the last heat (he had a 23.516 when I laid down my 23.585... then he went out and put down the .4), got to take down one of the GT3’s at least. Shake in his Model 3 Stealth Performance finished just behind me in RAW for the 3rd event in a row

 

[burningchrome]

What tire pressures are people running? I’m thinking 48-50 for my first outing.

 

[Zextraterrestrial]

What tire pressures are people running? I’m thinking 48-50 for my first outing.

I'm doing 36 to 38 rear and 38 to 40 front on 265 19" RE71.

 

[SK360]

32 in the front and 33 in the rear. 255/40/18 RE71R

 

[burningchrome]

32 in the front and 33 in the rear. 255/40/18 RE71R

Wow, that low?

I'm going to the AL SCCA event that was just postponed from this weekend to next. They run a EV-X class alongside STX, but I can't find any PAX numbers or rules. Guess it's just SS or EV-X.

 

[Zextraterrestrial]

32 in the front and 33 in the rear. 255/40/18 RE71R

You are true SS, right?
we have crap HMA so I'm trying not to torture my tires too much. 36 all around is good on better surface. 33 seems low like I'd roll all the way past the triangles?

 

[SK360]

Wow, that low?

I'm going to the AL SCCA event that was just postponed from this weekend to next. They run a EV-X class alongside STX, but I can't find any PAX numbers or rules. Guess it's just SS or EV-X.

You are true SS, right?
we have crap HMA so I'm trying not to torture my tires too much. 36 all around is good on better surface. 33 seems low like I'd roll all the way past the triangles?

Yes only SS rule I'm breaking is wheel diameter (running 18's) but my club told me I was fine.

Here are my front and rears after 4 events (I swap them back to front every event so some may be old wear). They’re still on the car so pictures aren’t great. I don't chalk them I just go by feel. They may be rolling past but they feel great. I got the suggestions for Tire pressures from a friend that runs his Model 3 Performance and happens to be a tire engineer for Bridgestone. IDK, it's been workin lol.