Correct Class?

[Seb]

Hi,
I was looking at what class my 2019 Corolla SE sedan could be, I was looking on SCCA time trials classification and only saw the corolla hatchback, i'm assuming the sedan is probably close enough just not sure. I have also added a cold air intake and a catback exhaust.
Thanks,
Seb

[immorality]

You would be in STS with the cold air intake, HS without, from what I read in the 2022 rulebook.

[Seb]

Ah thanks, I just took another look and realised I looked in the wrong spot. Thanks

[Davis Stewart]

Last year I was registered in street modified in an RHD 1999 Mazda RX-7. The car has a mild street port, paralleled twin turbos, and aluminum race radiator, but otherwise is stock, with OEM cat and Mazdaspeed spec OEM muffler. However, my boost is capped at 7 psi vs up to 11 psi stock and my most recent dyno was at 220 hp (at wheels). I am running on 17" Toyo Proxis R1R on Super Advan wheels.

Due to the capped hp, is it possible to qualify for a less agressoive class than "SM"?

[askho]

Last year I was registered in street modified in an RHD 1999 Mazda RX-7. The car has a mild street port, paralleled twin turbos, and aluminum race radiator, but otherwise is stock, with OEM cat and Mazdaspeed spec OEM muffler. However, my boost is capped at 7 psi vs up to 11 psi stock and my most recent dyno was at 220 hp (at wheels). I am running on 17" Toyo Proxis R1R on Super Advan wheels.

Due to the capped hp, is it possible to qualify for a less agressoive class than "SM"?

I believe any right hand drive automatically goes to SM.

[dtcaciuc]

I believe any right hand drive automatically goes to SM.

Wouldn't one of the XS/XB/XS qualify as well?

[immorality]

Yes, RHD cars are eligible for XS classes.

[510]

Depending on weight (with driver) and tire width you will be XB or XS. If it doesn't make sense just go with XB - you're legal there for sure.

For future reference JDM is specifically excluded from SM, but many clubs allowed it simply for a place to play at local events. This was before the "X" classes.


Xtreme Street B (XB) Lightweight import and domestic sports cars
• Eligible vehicles: All vehicles using an automobile-based engine (no electric or hybrid-electric vehicles).
• Weight with driver (lbs., min.):
o RWD: 2330
o FWD: 2180

Xtreme Street Sport (XS) High Performance Import and domestic sports cars
• Eligible vehicles: All vehicles with seating for 2 or more adults
• For Electric and Hybrid-electric vehicles: No changes are permitted to the tractive system or its
programming. Batteries, the computers and/or hardware controlling battery systems must remain OE. This
includes but is not limited to electric motors, battery packs, powertrain control modules/computers and
sensors, etc.
• Weight with driver (lbs., min.):
o Average tire width of 275 and less: 2680
o Average tire width greater than 275: 2830

[David Wilson]

Thanks Brian for clarifying, we sure appreciate your time and knowledge.

Dave Wilson

[Davis Stewart]

I am registered as SM for April 30, how shall I change that to XS?

[dtcaciuc]

I am registered as SM for April 30, how shall I change that to XS?

Hi Davis,

You should be able to find the event in your MSR dashboard here https://www.motorsportreg.com/index.cfm/event/dashboard

Select Edit Registration on the right and it should let you update your class selection.

[Davis Stewart]

Great, Thanks, I changed it. Now i am looking for the Pax assigned to each class.

[dtcaciuc]

Great, Thanks, I changed it. Now i am looking for the Pax assigned to each class.

You can find it here https://www.solotime.info/pax/

[KitsBeach]

Hi,
I was looking at what class my 2019 Corolla SE sedan could be, I was looking on SCCA time trials classification and only saw the corolla hatchback, i'm assuming the sedan is probably close enough just not sure. I have also added a cold air intake and a catback exhaust.
Thanks,
Seb

You might want to look at your mods and decide if they are worth it. I drove my son’s totally stock vehicle at last event and it had a great pax.!