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Autocross- SCCA EV-X Class vs. SS
- Thread starter RacerChris
- Start date
This one is as vague as the previous language in ST classes. Compare that to the recently-added pretty clear language in 14.8.H.7.
One can argue that two linkages are an "arm", and the toe+camber set is a "camber kit."
One can argue that two linkages are an "arm", and the toe+camber set is a "camber kit."
superflyrolla
Member
Agree, it's too vague. "Only the upper arms OR lower arms may be modified or replaced" is listed only under "Camber Kits." The toe arm is not a "Camber Kit" in my interpretation.
Rodney!
Looking for a hot receptacle
forgive my ignorance, as I have a factory height car, but what is wrong with the factory toe links? Once you lower the car, can you not get the proper toe setting?
Are the new toe links longer or shorter then factory?
Are the new toe links longer or shorter then factory?
The stock rear toe adjustment is just a bolt with an eccentric washer. It has very limited adjustment capabilities and tends to run out around 1.5 to 2.0 degrees of camber.
In a way, toe arms are really needed for (street) convenience. If one wanted, they would align to have zero toe at -2.0 degrees of camber. Then at the event, dial more rear camber and get the corresponding toe-out, hopefully enjoying more rear grip with similar-ish level of tail instability. That said, I'm not even sure separate toe arms are even legal in SP. I think there is an allowance for most suspension components, but I thought it was geared toward improving durability.
Anyway, I submitted a question to the SEB to get an official ruling to clear up any potential ambiguity.
Anyway, I submitted a question to the SEB to get an official ruling to clear up any potential ambiguity.
Rodney!
Looking for a hot receptacle
So toe links are for ease of adjustment on site?
I did something similiar with my Street Mod car back in the day, i had turnbuckles that every 1/4 turn added/reduced toe x amount. Came in handy when going from asphalt to concrete then back again...
I did something similiar with my Street Mod car back in the day, i had turnbuckles that every 1/4 turn added/reduced toe x amount. Came in handy when going from asphalt to concrete then back again...
IDK, it's weird. My point is that if those toe links aren't legal, it won't stop really dedicated people from running -3 degrees in the rear with a meaningful toe out.
It may simplify setup tuning though, with one less adjustment to mess with...
Ok, new topic:
I need 200TW tires for EV-X Autocross this season.
I can't get A052's, and my car ate them fast last year anyway.
I do care about being at the pointy end, so need a competitive 200TW tire, but I'd give up a tiny bit for better wear. I can only squeeze about 2 degrees out of my front MPP arms.
Would you go RE-71RS or BFG Rival 1.5's? I've heard the Rivals do well on heavy cars and I am not the smoothest driver...
I need 200TW tires for EV-X Autocross this season.
I can't get A052's, and my car ate them fast last year anyway.
I do care about being at the pointy end, so need a competitive 200TW tire, but I'd give up a tiny bit for better wear. I can only squeeze about 2 degrees out of my front MPP arms.
Would you go RE-71RS or BFG Rival 1.5's? I've heard the Rivals do well on heavy cars and I am not the smoothest driver...
I have the Rival 1.5's, and I do like them. I only did one autocross and one track day last year with them, so I don't have a ton of experience. Beware that they run wide though. I run 5mm spacers with 275/35/19 on Konig 19x9.5 +35 Ampliforms, and the tire still just grazes the uprights under load.
emiliorescigno
Member
If you want to be at the pointy end, A052s or RE-71RSes are the answer.
I have no first-hand experience with either, but thought I'd mention that Costco finally added 71RS to their offerings and are currently running $150 off deal on them.
Took delivery yesterday, submitted letter today.
Might take me a couple of days to finish reading through the previous 42 pages of this thread. If anyone else has suggestions for good Model 3 solo/autox resources I would be happy to absorb. Previously ran relatively well in street classes at tours and not so well in my one run to solo nationals in an STR car.
Rodney!
Looking for a hot receptacle
Awesome! Thanks for sending the letter...
My lightweight 2024 B Street legal wheels are hot off the presses! Just waiting on tires to be delivered, UPS sent them the wrong direction...
I will be slumming it in SS locally (New York) this year, save for the New Jersey Pro Solo.
Did you already buy tires? If not, you may look at the Nankang CR-S. The new compound looks pretty promising, and seems to get faster the more they wear. They are also cheaper, but shipping to the NW is about $180 for 4 tires.
Looks like Jovas...got some design/specs to share so I could just copy your order?
Find out the new CR-S compound won't be stateside until mid late May. At least PTS won't have them until then.
