Pay It Forward Design Challenge [B1418, Closed]

[Slim Jim]

Got it. I'll start working on it tomorrow. Just asking, can i change the compression ratio or not? It would make sense because if you adjust cam profile, mad boost and fuel mixture, you might have to change compression ratio as well. And 1/4 time as measured by the game's main stats or as measured on Tulsa? Oh, and UK miles per gallon or US mpg?

Excellent questions!

1. Changing the compression ratio is not allowed. The cylinder head and piston designs are "locked" because re-tooling the engine factory to accommodate these changes would be too expensive. (at least in my scenario they would be)
2. 1/4 mile time as measured by the game's main stats... I don't want anyone to have to download anything they don't already have... too much hassle IMO.
3. US mpg as that was my benchmark... but for ease of comparison, let's say 24 UK mpg -or- 20 US mpg. Whichever is easier for you to work with.

[TheTom]

Alright. Not being able to change the compression ratio added a little bit of a twist to this challenge, but at least i made it. Not making even my first challenge received would have made me feel real bad given the fact that i've been playing Automation for over 2 years now. So here it is, the Prototype 1 in the "finished" edition xD By the way, the economy figures in the first screenshot are US mpg.





I will post my challenge for Pleb soon, i just need to make sure it'll be hard enough

Greets,
Tom

[TheTom]

Below is the challenge for Pleb!


You're a young mechanic with a big dream. You want to build your own cars. Obviously, you have to start by building one car, and for that you've saved up 9.500$.
You're very ambitious to finish your first ever car and start working right away. After a few weeks, you come up with this:


Your mom and dad are proud of you having built your own car. They appreciate the styling, too. But recently, your dad has been talking about wanting a new car, and luckily for you, he said he wanted a hatchback for more practicality. He offered you an additional 3.000$ if you would change the car to make it more suitable for him, which you gladly accepted.
Obviously, being a young car enthusiast, your idea of a good car is very different from his. He wants a comfortable, safe and easy to drive car with good reliability and fuel economy. And, because he would like to be able to overtake drivers like... your grandfather, it has to be moderately fast too. And you have to be done with the changes within one week. All that while keeping it within the cost limit.



REQUIREMENTS
- Comfort: 50+
- Tameness: 50+
- Safety: 40+
- Car Reliability 67.5 or higher
- less than 5l/100km (i.e. at least 56.5mpg UK / 47.0mpg US)
- 0-100km/h in 9.0 seconds or less
- 130 manhours max.
- less than 12.500$ total cost
- must be turbocharged
- 95RON max


You CAN change:
- Compression ratio, Cam profile, VVT/VVL or not
- Intercooler, Compressor, Turbine, A/R Ratio, Max. Boost
- Fuel Mixture, Ignition timing
- RPM limit can be lowered, but not raised
- Exhaust diameter, muffler types
- Gearing, but not gearbox type or amount of gears
- Brake disk size
- Interior, entertainment and safety options, sound insulation
- Cooling and Brake airflow, aero inclination, downforce
- Cambers, dampers, springs and sway bar sharpness
- Ride height
- Quality sliders on the engine section (except bottom end) as long as you’re within the given cost and time limit


You CAN NOT change:
- The Exterior
- Anything on the engine bottom end
- Head and Valves, head material
- Injection type
- Exhaust header, Cat. type
- Gearbox type (must use the 6-speed automatic, but you can change the gearing)
- Amount of seats (it should be comfortable for the passengers in the back row)
- Quality sliders in all of the Trim section
- Brake pad type
- Must use 4 piston brake calipers
- Chassis and suspension type
- Chassis and panel materials
- Drive Type
- Undertray (none allowed)




Greets,
Tom

[Slim Jim]

Excellent job Tom! Management is most pleased with your efforts. Customers probably won't notice the drop in quality , but you were able to deliver the product the managers wanted, within budget, and far exceeded many of the design targets. *Two thumbs up*

[Pleb]

Tom, your challenge car gives me a LUA error for 'EngineDimensions', I'm not sure what's wrong.. Could you maybe send me the engine LUA too?

[TheTom]

Sure. I now added the engine file to the previous post.

[VicVictory]

How's it going there, Pleb?

[Pleb]

I'm working on it, I just need economy and cost..

[Pleb]

Damn, I'm really struggling with this one.. I have everything except acceleration, which currently sits at 11.8 seconds

[EnryGT5]

Invoke Jeremy Clarkson's magical call for POWEEEER!

[VicVictory]

I don't know if this as meant as encouragement or mocking, but I did it in 30 minutes... and in the process made it so that it can run on 91 RON fuel.

[Pleb]

I have no idea what I'm doing wrong! This is embarrassing

[VicVictory]

Uh oh... not looking so good for you then is it?

If you want to throw in the towel, you can. You'd still have to issue a new challenge to the next person on the list from pg 1.

[Pleb]

No, I want to finish the challenge! I'll have another crack at it tomorrow, I refuse to be beaten!

[TheTom]

Go ahead, take your time. I'll spend that time thinking about what sort of "punishment" you shall receive if you fail