Automation Touring Car Championship 2 [FINAL RESULTS]

[TrackpadUser]

What in god's name did you do to the car to develop 701hp? super expensive high boost turbo?

EDIT: judging by my experience back in my day of dial-up, I'm guessing yes!

Pretty much.

It's a flatplane cast iron V8, with the turbo close to its max size, +13 quality to the head and +12 to the turbo.
Had to lower the quality of a few parts and use cheaper materials for the body, but the whole car is under the 20K limit and weights about 1025kg.
The engine is worth over 14k just by itself.

[strop]

LOL I thought so. It sounds like the kind of build I made for the first ATCC!

[8bs]

If i pass the inspection, i will use the same body, but in another version.

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Let's see how it goes.

[conan]

Here is my creation, the Tishillyman Pratāpana Whippet. It's said to be as crappy as the another Tishillyman on Compact Turbo Challenge.

[TrackpadUser]

Here is my creation, the Tishillyman Pratāpana Whippet. It's said to be as crappy as the another Tishillyman on Compact Turbo Challenge.

Well it might actually be able to win. Just use your lights to blind the drivers in front of you, making them crash.

[pyrlix]

The Banhammer Molotok 2 is ready for the race



The successor to the average mid-engined Molotok!

[Thefan630]

KAX's S0 has been official approved for ATCC's second season, here are some pictures for your beautiful eyes on my creation. I wish you all good luck out there folks!

[EnryGT5]

Seishido Motors proudly presents the EGT Rigel 4RE ATCC, a true monster in disguise, wearing on the stock steel chassis a polymer clone of the stock body, almost identical if it wasn't for the extra air intakes and double rear wing, remember when i told you i wouldn't go over 450hp or my tameness would drop too much... well.. now we improved the engine and suspension settings so much it's got a slightly higher tameness... and 520hp! This killer machine leaps from 0 to 100 in just 3.2 seconds, got tons of grip and goes all the way to 271km/h, we cut over 5 seconds at Automation Test Track compared to the previous 480hp prototype, admire it's sleek body and awesome pop-up headlights here

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ATCC2-EnryGT5-2.png (78.4 KiB) Viewed 5079 times

ATCC2-EnryGT5-3.png (56.2 KiB) Viewed 5079 times

[NormanVauxhall]

The Znopresk Zest iX ATCC

[strop]

Wow enry, that sure sounds impressive! I'm looking forward to seeing how it'll do!

(Still slower to 100 than my entry though, muahahaha )

[CheftonUTD]

I need to find some tutorials or something, I spent a lot of time on my engine and just barely passed 400hp...
Do these high-power engines have decent power over a range of a few thousand rpm, or does the power graph tend to be more of a sharp peak?

[strop]

It also depends on how much money you sink into the engine.

I can tell you that a turbo engine worth about 10-12k may have up to 480hp and launch in the power band, with boost kicking in halfway to the rev range (hence my good 0-100 time).

I also built a 520hp NA engine (more expensive injection and valve train, but no turbo offsets cost), and NA engines tend to have a steadily increasing power until the peak, with, depending on can profile, a concavity in the curve and a sharper peak if cam profile is high.

EDIT: oops, hit submit too soon. I also built the 700hp turbo trackpaduser mentioned, that one doesn't finish spooling until about 7000rpm so much lag!

[ViruTypeR]

Hi guys, here is my machine for the championship.

A 2 door old school coupé, form the saloon version. With a powerfull 3.5 V8 32Valves mechanic injected, with about 440hp @ 7900 rpm and 410Nm @ 7500. The car is very light, just a tonne, because of the polymer-made body.

The VR 350 V8 ATCC version. Not sure about his circuit performance hehe just for fun.







The heart

[TrackpadUser]

Yeah. Turbo will usually end up more peaky than NA, usually making turbocharged cars faster on fast tracks, but with a penalty to tameness, meaning slower on bumpy tracks.

As for turbo tuning, you don't want it to be too peaky. Turbos have what I call a ''useable powerband'', which is fairly easy to see on the power graphs.



On this one for example, we can see that the useable powerband starts at ~7K RPM and ends at ~10K RPM.

This causes a big issue with the gearing, as you want to stay out of that zone, in our case it means short gearing, so you can't use your power where it's useful (high speeds).

In this case, just making the turbo slightly smaller, widening the powerband by 1.5K RPM at the expense of 50 horses results in a 7 second gain on the automation test track, which is huge.

[CheftonUTD]

Thanks for the tips, I'll have a play around and see how I go now .