BRC 1955 - The Golden Age [Qualifying R5]

[Packbat]

@07CobaltGirl: It looks like you have some room with fuel octane - perhaps make the cam profile less aggressive and add compression or ignition timing? That might get you a broader power band for better acceleration.

[Lordred]

I had an entry.

Then I was re-naming it and checking to make sure the naming was right... and some how when I hit the down arrow to make sure all was well in the world, it deleted everything.


gonna just go over there now.......

[TheBobWiley]

I had an entry.

Then I was re-naming it and checking to make sure the naming was right... and some how when I hit the down arrow to make sure all was well in the world, it deleted everything.


gonna just go over there now.......

I have had bugs like that. Every time I make a car and start messing with tires the "max tire diameter" variable suddenly goes wonky and I can't go above some absurdly low value. The only way to fix it is to manually enter the correct max diameter in the .lua file or start over from scratch. Hopefully these bugs get worked out eventually :\

[GenJeFT]

While making my car for the BRC 1945 I lost 5 of them due to bugs. Its the main reason why my suspension in the BRC 1945 is such a disaster, I got tired of re-doing it over and over and over again.

My suggestion, keep a backup of the car. That's what I do that now.

[strop]

One thing for sure is that I don't think having one p/w limit is going to work very well with Turbos, especially since they tend to drink a lot and have worse powerbands compared to similarly powered NA engines.

If the turbo was small and restricted enough you can get better economy and power band if the power limits are low enough. However, with all the added costs for relatively little gain one might not see any point unless they were hopelessly "turbostruck" xD I would agree that at least the addition of Min weight regulations would be the way to go in later stages, if one wanted to see a wider variety of bodies used. It'll all be about the drag otherwise, when the tyres get better.

[TrackpadUser]

Yeah, I like how the power weight ratio makes it fairly easy for everyone to be somewhat competitive, but it also tends to result in what happened in BRC1945 and what will probably happen now again, where there is one thing that works very well and most cars that don't respect that are left behind, with very few exceptions.

This might become less true as the years go by and the tires get wider though.

[JasonPoland]

I'll wait till pre season tests to see how bad idea it was to use a bad body and then I'll probably try to build everything from scratch without using the same body as the rest of the world

[strop]

You could also try using the small 1945 body that dominated the 1945 challenge.

I just ran a 10 minute test with the small 45 body to see what happened. It's possible to make a car with superior (or just as good as the not-sprite) cornering, and it's just slightly heavier, but the extra 50% drag really kills the top speed. Equivalent power car gives you about 10-20km/h slower top speed!

I have yet to really properly explore the not-sprite's capabilities, but running a low 2:42 with an aggressive (but somewhat unoptimised) tune is still a couple of seconds off the Sprite's sub 2:40. It's close, but not there yet. And the fuel consumption is also about 50% worse!

So I'd hypothesise that the 45 body will match the Not-sprite in the tighter, more technical tracks but with a long enough straight, that top end is going to prove decisive. That is to say, in qualifying. In the real race, it's slightly different again...

p.s. oh, screw this, I'm crossing to the dark side. Bob, I'm coming for you!

[Richard117]

After seeing these laptimes i knew i'm in trouble. My laptime was a 2:53
It seems like my focus was to much on fuel consumption and my suspension settings were way to sporty, after some changes I lost some sportiness and won some drivability resulting in a 2:47 laptime. Still way to slow, so I wait for the pre season test results and see what I can improve before I send the updated version .

As I said earlier, it's my first time in a competition like this. So I have a lot to learn and don't really care about that slow time. It's more important for me to find the reason for being slow, fix it and to see improvement

[strop]

That's the spirit! Personal goal setting and learning through experience is the best way forward.

Der Bayer, I have already submitted a car for the first trial, but I would like to replace it with something else. Is it possible to send through a revision now, or must I wait until the next trial?

[Der Bayer]

Send it in, I haven't started anything yet.

[strop]

ok done. I hope those files worked, despite going through every tab multiple times, renaming resulted in the costs and times going slightly awry. Do let me know if I end up 16c over budget, because that's how it appeared to me when I opened the files again to take a picture. Also my renamed trim and variant vanished even after I saved by clicking the test buttons on those tabs. Odd.

At any rate, now that I've joined the dark side, here's a picture of my rather luxuriantly (obnoxiously) painted roadster, which has yet to have any kind of name or backstory to it:

BRC1955-strop-Cars-Models - Car Trim 1-1.png (659.33 KiB) Viewed 3530 times

[07CobaltGirl]

I feel so betrayed, strop!

@07CobaltGirl: It looks like you have some room with fuel octane - perhaps make the cam profile less aggressive and add compression or ignition timing? That might get you a broader power band for better acceleration.

There is only .1 of octane left on the motor (it is in AKI not RON). And, it's actually less than that. One click down on cam hits MTBF/reliability due to high octane (detonation?). Adding compression didn't seem to help much, and adding ignition timing only made it worse. Remember this is an OHV engine, not a S/DOHC engine.

[NormanVauxhall]

So Der Bayer, can I send tonight a revision of my car?

[Der Bayer]

Yes. And to everyone else: yes