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BRC - Out of the Steam - 1945 [Final Race Results]

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bendersan

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Post Sat Mar 21, 2015 2:30 pm

Re: BRC - Out of the Steam - 1945 [BUILD]

In attempting to build a car for entry, I noticed two major issues with using the Automation track timing system. These issues are the lack of consideration for engine torque and power/drag ratio. I built a faster car with a much smaller engine pushing the same horsepower as a larger engine, but with 60% the torque of the larger one. The car was two full seconds faster around the Automation track, which should favor cars with monstrous torque to pull them out of the corners (I balasted the weight difference between the two with the safety system "cheat"). The test-track feature is a cute add-on, but is in no way a reasonable consideration for how well-performing a given automotive design should actually be. The devs will need to consult, at the very least, a high-level amateur race team to come up with all of the variables needed to properly design the performance aspect of the game. That being said: I'm out on this one.
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nialloftara

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Post Sat Mar 21, 2015 2:52 pm

Re: BRC - Out of the Steam - 1945 [BUILD]

My 2.2 only outputs 102hp, but has a healthy 125ish lbft torque, is decently fuel efficient, and can pull over 100mph flatout.
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TrackpadUser

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Post Sat Mar 21, 2015 3:39 pm

Re: BRC - Out of the Steam - 1945 [BUILD]

bendersan wrote:In attempting to build a car for entry, I noticed two major issues with using the Automation track timing system. These issues are the lack of consideration for engine torque and power/drag ratio. I built a faster car with a much smaller engine pushing the same horsepower as a larger engine, but with 60% the torque of the larger one. The car was two full seconds faster around the Automation track, which should favor cars with monstrous torque to pull them out of the corners (I balasted the weight difference between the two with the safety system "cheat"). The test-track feature is a cute add-on, but is in no way a reasonable consideration for how well-performing a given automotive design should actually be. The devs will need to consult, at the very least, a high-level amateur race team to come up with all of the variables needed to properly design the performance aspect of the game. That being said: I'm out on this one.


Torque doesn't make a car faster. When someone says an engine is torquey, it usually means that it has a fairly flat power curve and makes decent power at lower revs, as opposed to a peaky engine, where all the power is in the higher revs.

While it is obviously an issue with bad gearing, if your car is geared properly it makes little difference in racing.

Edit: Also, your torquier car was probably more front heavy due to the larger engine, which not usually a good thing, especially with RWD cars.
Last edited by TrackpadUser on Sat Mar 21, 2015 3:57 pm, edited 1 time in total.
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Neoph

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Post Sat Mar 21, 2015 3:48 pm

Re: BRC - Out of the Steam - 1945 [BUILD]

The entry i send at first was a 1.4L 6 in line, and my current design use a 1.0 V8, maybe i'm the only crazy enought to make a 999cc V8 engine?
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TrackpadUser

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Post Sat Mar 21, 2015 3:49 pm

Re: BRC - Out of the Steam - 1945 [BUILD]

You definitively aren't.

I am running a 900cc V8, oppositelock is running a 1L V8, and I heard a lot of people say they will do the same.
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Neoph

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Post Sat Mar 21, 2015 6:02 pm

Re: BRC - Out of the Steam - 1945 [BUILD]

Well, my best timed car right now uses a 688cc V8 engine... this is weird, still can't beat the 3 minutos barrier in the automations track tought.
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TheBobWiley

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Post Sat Mar 21, 2015 6:31 pm

Re: BRC - Out of the Steam - 1945 [BUILD]

Neoph wrote:Well, my best timed car right now uses a 688cc V8 engine... this is weird, still can't beat the 3 minutos barrier in the automations track tought.


Just a little tip, watch the full lap and watch your speedo, you will find your problem on the back straightaway.
Also, getting ever closer to sub 10 minute mark on Green Hell... but I think I have exploited the power/ratio as far as I can.... think its time to send in my car for the next practice session :D
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Der Bayer

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Post Sat Mar 21, 2015 6:37 pm

Re: BRC - Out of the Steam - 1945 [BUILD]

The next test video will be released early on Monday. Lots of entries are coming in and I want to have eveyone in the video who builds a car during the weekend.

Please note that I won't check if your car is built according to the rules until the deadline has passed. This is your duty now and I cannot check every single revision I get.

edit: We now have 30 entries. If we get above 40 entries (this is probably happening), the qualifying session for each race weekend will determine which 40 cars are allowed to race. So if you didn't qualify in one race, you still could in the other races.
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NormanVauxhall

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Post Sat Mar 21, 2015 7:09 pm

Re: BRC - Out of the Steam - 1945 [BUILD]

bendersan wrote:In attempting to build a car for entry, I noticed two major issues with using the Automation track timing system. These issues are the lack of consideration for engine torque and power/drag ratio. I built a faster car with a much smaller engine pushing the same horsepower as a larger engine, but with 60% the torque of the larger one. The car was two full seconds faster around the Automation track, which should favor cars with monstrous torque to pull them out of the corners (I balasted the weight difference between the two with the safety system "cheat"). The test-track feature is a cute add-on, but is in no way a reasonable consideration for how well-performing a given automotive design should actually be. The devs will need to consult, at the very least, a high-level amateur race team to come up with all of the variables needed to properly design the performance aspect of the game. That being said: I'm out on this one.


Take a look here, it's... enlightning viewtopic.php?f=13&t=1719
Especially this video here viewtopic.php?f=13&t=1719&start=10#p23592
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TheBobWiley

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Post Sat Mar 21, 2015 8:36 pm

Re: BRC - Out of the Steam - 1945 [BUILD]

I think I may have just set myself back fairly drastically. I just noticed there is a "total" cost and "materials" costs..... was totally going $7k material cost, but my total cost is 25K..... whoops :cry:
I feel really dumb right now
Last edited by TheBobWiley on Sun Mar 22, 2015 7:11 am, edited 1 time in total.
Owner of Ankomst Automotive
Established 22nd March, 1945
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suicideduck

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Post Sat Mar 21, 2015 10:43 pm

Re: BRC - Out of the Steam - 1945 [BUILD]

oh, so the construction cost isnt meant? im at 25k total costs also and im alrdy at low quality on most parts :/ some clearifications what exactly is meant? the overall construction costs or the total costs ? (still not sure what the overall costs includes?) but i guess the construction costs are meant cuz i simply cant get the total costs down to 7k ....

ps: i saw in the test video most peoples run over 200kmh oO i just hit the 180 kmh mark in my test track. (just bought the game so its my first car, just wondering if i make something wrong or the simulator isnt that accuarate (saw it also use a 6 speed transmission in the test videos instead of the 3 speed transmission)
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Der Bayer

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Post Sat Mar 21, 2015 10:55 pm

Re: BRC - Out of the Steam - 1945 [BUILD]

The videos you saw (earlier videos) have been run with modern cars. Only the last video is done with 1945 cars.

The ingame total cost figure (not material cost!) of the car oon the overview screen is what counts. It is no problem at all to stay below $7000 if you don't use quality too much. Start off with every quality slider at 0 and look what you get at first. Then raise the quality where you want, but stay below $7000.
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suicideduck

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Post Sat Mar 21, 2015 11:02 pm

Re: BRC - Out of the Steam - 1945 [BUILD]

oh no, thats gonna be a tough task and i was so happy to get times under 3 mins on the test track :P so back to the construction hehe

but what includes the total costs ? developement ? tools? just curios
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Der Bayer

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Post Sat Mar 21, 2015 11:09 pm

Re: BRC - Out of the Steam - 1945 [BUILD]

Only material cost and production units (i.e. cost for labour).
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suicideduck

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Post Sun Mar 22, 2015 12:06 am

Re: BRC - Out of the Steam - 1945 [BUILD]

so even in the last video peoples reach 200+ kmh. mhhh i guess i need more weight to push the engine power?
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