danvan
danvan GRM+ Memberand New Reader
4/22/15 12:43 a.m.

We have a club member up here that has bought a Slingshot and wants to Autocross it at our events, have any of you seen any at SCCA autocrosses and are they allowed to run. They are registered in BC as a car. any input would be great

Thanks

Dan

Trans_Maro
Trans_Maro UberDork
4/22/15 1:12 a.m.

CACC Autoslalom Rulebook 2015:

Section 3.5:

To qualify as eligible to participate in an autoslalom event, each vehicle must comply with the following minimum requirements:

a) It must have four road wheels, not in a line, a minimum of two of which must be driven.

b) It must have a braking system that works on all four wheels simultaneously.

c) It must have a structure and bodywork that surrounds and protects the driver, at least to his waist level when seated in his normal driving position.

d) It must have a minimum wheelbase of 152 cm (60 in.), a minimum front and rear track of 107 cm (42 in.), and a minimum wheel diameter of 25.4 cm (10 in.).

These are the minimum standards, so it fails to pass ANY of the most basic requirements.

If the club operates under CACC rules and they allow it, then their insurance will be void.

pinchvalve
pinchvalve GRM+ Memberand MegaDork
4/22/15 7:51 a.m.

"a minimum of two of which must be driven"

Does that mean that a car with an open differential is not allowed?

chrispy
chrispy HalfDork
4/22/15 7:53 a.m.

SCCA: Automobile (Car) An automobile or car is a self-propelled land vehicle, running on at least four (4) wheels, not in a line, which must be in contact with the ground when at rest.

jstein77
jstein77 SuperDork
4/22/15 8:05 a.m.
pinchvalve wrote: "a minimum of two of which must be driven" Does that mean that a car with an open differential is not allowed?

Even an open differential drives both wheels; it just doesn't discriminate as to which it sends the power to.

And no, three-wheelers are not allowed at any SCCA autocross due to insurance complications. It's a shame, really - the Polaris might be a lot of fun.

Knurled
Knurled GRM+ Memberand UltimaDork
4/22/15 12:02 p.m.
pinchvalve wrote: "a minimum of two of which must be driven" Does that mean that a car with an open differential is not allowed?

Open diffs power both end equally. That becomes bad when one side's traction becomes compromised... because both sides still get equal power. Nothing on one side means nothing on the other side.

GameboyRMH
GameboyRMH GRM+ Memberand MegaDork
4/22/15 12:07 p.m.
Knurled wrote:
pinchvalve wrote: "a minimum of two of which must be driven" Does that mean that a car with an open differential is not allowed?
Open diffs power both end equally. That becomes bad when one side's traction becomes compromised... because both sides still get equal power. Nothing on one side means nothing on the other side.

I'd say a spool powers both sides equally, an open diff sends power through the path of least resistance

Petrolburner
Petrolburner HalfDork
4/22/15 12:12 p.m.

The track width up front is like 15 feet wide, it would be a cone guzzler compared to most compact cars.

bgkast
bgkast GRM+ Memberand UltraDork
4/22/15 12:39 p.m.
chrispy wrote: SCCA: Automobile (Car) An automobile or car is a self-propelled land vehicle, running on at least four (4) wheels, not in a line, which must be in contact with the ground when at rest.

Add this somewhere...problem solved!

edizzle89
edizzle89 Reader
4/22/15 2:05 p.m.
jstein77 wrote:
pinchvalve wrote: "a minimum of two of which must be driven" Does that mean that a car with an open differential is not allowed?
Even an open differential drives both wheels; it just doesn't discriminate as to which it sends the power to. And no, three-wheelers are not allowed at any SCCA autocross due to insurance complications. It's a shame, really - the Polaris might be a lot of fun.

dual motorcycle tires out back solves the problem of 2 powered wheels and 4 wheels on the ground!

jstein77
jstein77 SuperDork
4/22/15 2:09 p.m.
bgkast wrote:
chrispy wrote: SCCA: Automobile (Car) An automobile or car is a self-propelled land vehicle, running on at least four (4) wheels, not in a line, which must be in contact with the ground when at rest.
Add this somewhere...problem solved!

I'd say two of those, one on each side of the rear wheel, like outriggers. The rule does say at least 4.

Wally
Wally GRM+ Memberand MegaDork
4/22/15 4:50 p.m.

So my Rallycross Elio idea is no good?

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