Trans-American Championship 1972 [ENTRIES OPEN]

I do notice that the 100kg subtracted from the O2.5 class is not subtracted from the U2.5 class, but I understand that would maybe be too complicated.

If Vento wanted to be super accurate, the O2.5 class had 22 gallon tanks, which would hold about 133 lbs (60kg) of fuel, not 100kg. That would make the minimum weight 1390 kg / 3064 lbs. Whereas a 2500cc car would have a minimum of 1361 kg / 3000 lbs under these rules (ignoring the fact that irl these cars also had 15 gallon tanks, which would be about 91 lbs/ 41kg). Probably best to pick either kg or lbs for the regulations…

The minimum may seem like a lot for the 2.5 class, but irl nothing even raced over 2L in that class. They really were completely different classes of cars not competing with each other at all. They didn’t even race together at the same time, even though they raced on the same day (mostly).

(By the way, I hope it doesn’t seem like I’m dictating the rules here. This is Vento’s challenge. I’m just trying to clarify what the rules were in real life. It’s up to Vento to find a balance between historical accuracy and a fun automation challenge)

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can we do a car per class or do we have to pick?

You can submit up to two cars

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Will there be a limit to how many aero fixtures we can use?

indeed it is so

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Wondering about this too, would love to see the full ruleset

1LB per CC in under 2.5L or 1KG per CC?
Just for clarity before I start making test cars.

it’s 1 lb

Okay, so Im new here, and have a few question.
If I got it right, we need to submit 2 cars, 1 under 2500cc and one beetwen 2500 and 5000. But there is no mention about needing to build a different car, so I suppose, I could make a well handling car and put 2 different engines in it?
Also no race parts still means we can use race tyres? If yes, what compound? Tyre wear will be simulated, and counted as pitstops? That’s all, sorry if I asked something stupid.

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As I understand it, you can submit 1 car in either category, with a maximum of 2 entries. You don’t HAVE to submit 2 entries, but if you do they have to be in different categories.

If you submit 2 cars, there is nothing saying they have to be different vehicles, so long as they both meet the rules of their respective classes. If you have a car that you can swap engines (and possibly some other stuff) and each entry qualifies for their class… I think you’d be fine.

I asked earlier about tires. It is my understanding that “no race parts” means no racing tires either. We’ll have to see what we can do with sports compound (unless I read host’s response wrong).

Hope this helps. Happy building!

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Actually, if I could ask one last question… The base track times you will be using for our cars, they will be automation track times, correct? I only ask because if you’ll be driving each car in BeamNG for times I’ll have to take a completely different approach to building the car.

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The track times are the testing section in Automation

Rules deliberation ahs ended and submissions are now open!!!

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“no race parts” does that still also include race interior? I understand no race tires and stuff because it’s all supposed to be homologation stuff, but a race interior still makes sense, as there would need to be a race bucket seat, roll-cage, and all flammable carpet and stuff removed.

Whoops that’s a good catch I didn’t think about that but rule deliberation already ended so I can’t change it now

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It’s up to you as the host, of course, but if no one has submitted an entry yet you could still change it if you wanted. Just make sure you make a suitable announcement.

The 1972 VMC Omega GT-Z was introduced to compete in the Trans Am sub 2.5 series.
If features a 105 Cubic inch Hemi L4 and a chassis designed to be agile taking advantage of its light weight.



The return of the VMC Ascella to the 1972 Trans-Am Championship is a great thing for fans. Out is the old I 6 and in is the 305 V8, and the chassis has been tightened up to make for a track ready car from the showroom.


1972 is a big year for VMC fans.
Come to your local dealer to buy one of our race ready models and get 3 week driving course for free!

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1972 ARMOR CRICKET SCCA TA RACE CAR

Though most people looking to race an Armor Motors car in the SCCA Trans Am series would opt for their ponycar Hurricane model, Armor Motors themselves also built a few compact Cricket models to compete in the 5.0 liter class.

In order to do this, Armor stuffed their 303 CID V8 (it was actually 5.0 liters, but Armor labelled it the 303 so no one would think they were using Ford engines in their cars) in a Cricket and gave it hood scoops, a giant front air dam, and an adjustable rear wing. The Cricket SCCA was sold in limited numbers… just enough to homologate it for racing, but it worked.

Extra Pics

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Hey im kinda new at this, bought Automation and Beam NG two weeks ago.

Sneak peak of my competing car - under 2.5L class: older body, 1972 engine variant inline 3 1.0L engine making 95 HP. Car weights just enough to pass the regulations.

Once we are done, how do we upload actuall cars?

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Once you’re done, go to the last tab for your car in Automation and click on the file save button down on the lower right (looks like an old floppy disc). That will save your car as a .car file. Then PM that file to the host by clicking on his sig. Options will show up to send him a message, just attach your .car file and send.