by "Poor_Sh" (ar4x)
Published 11/23/2017 at 21:42
by "Poor_Sh" (ar4x)
Published 11/23/2017 at 21:42
Tags: Autocross
STARS: 3
Given that not many people seem to be on right now, I shall ask a question I meant to ask more than 2 years ago when I had no idea how Kinja/Oppo worked. You see, I made a bad MSpaint sketch, a decently silly set of paragraphs (now lost to a burner I’ve forgotten), and posted it to my personal page thinking it would go to the Oppo page *DOH*
I don’t think I can replicate the silliness of those paragraphs I wrote so I’ll keep it really simple this time: How would you take a full circle in Autocross?
See awful 2 year old (actually not drawn by a 2 year old) drawing to the left. The entrance is straight through 2 gates but about in-line with the right side of the circle, and the exit is a full acceleration about 100 yards (total guess).
My original reason for this question was would you come in faster and wide then tighten as you turn (red line) or slow down enough to take it at a constant radius (green line). Thoughts?
But now, I want to add something if you’re inclined to try a bit harder... how does your attack change depending on car?
Personally I am now driving a 2014 Mustang GT, but I asked this when I had my 2011 Mustang V6 and when taking the circle in 2nd gear I had no power upon exit. Also, I mostly did the red line. With my GT, I do the green and I shift down to 1st before the black line entrance. I think just taking it slow and smooth works really well and then I pull through to 3rd gear for the finish of the lap at about 80mph.
If you don’t have a high hp, rwd, live rear axle, rocking/rolling, tank... would you do it differently?
"G_Body_Man: Sponsored by the number 3" (gbodyman)
11/23/2017 at 22:08, STARS: 1
I’d probably come in wide enough that upon exit the car is balanced and the line isn’t too tight to put the power down.
"The Crazy Kanuck; RIP Oppositelock" (jukesjukesjukes)
11/23/2017 at 22:12, STARS: 1
Depends on the weight distribution. Also if you post to the wrong blog go to edit post, then click “save to drafts”. That will remove it it, in that you change the blog then post it again.
"punkgoose17" (punkgoose17)
11/23/2017 at 22:27, STARS: 1
Honestly I am not to sure. The red line looks pretty good. I am guessing you are starting to turn in between the two cones? An elipse similar to a roller coaster loop may be a good line to try. I can’t figure out how to draw on the pic without downloading a new app.
"Poor_Sh" (ar4x)
11/23/2017 at 22:37, STARS: 0
Thanks but I actually didn’t even have authorship at the time. I thought it was just like forums.
"Poor_Sh" (ar4x)
11/23/2017 at 22:39, STARS: 0
Idk, the really tight slow circles allow me to accelerate earlier which increases my radius as I get out of the circle but into open space rather than during the maneuver.
"Poor_Sh" (ar4x)
11/23/2017 at 22:42, STARS: 0
Ooh interesting, like a sinusoid of throttle vs braking. I think I’ve tried close to that but I often overcook the exit and end up full oppo in a fishtail, or I just spin. I wonder if I could stay in second with said rollercoaster maneuver...
"AestheticsInMotion" (aestheticsinmotion)
11/23/2017 at 23:13, STARS: 1
Rear tires loose, front tires counter-steering.
"Poor_Sh" (ar4x)
11/23/2017 at 23:21, STARS: 0
Oh how I wish I could pull that off... On purpose. Points for trying?
"G_Body_Man: Sponsored by the number 3" (gbodyman)
11/23/2017 at 23:48, STARS: 0
Just out of curiosity, how tight is your diff?
"Jayhawk Jake" (jayhawkjake)
11/24/2017 at 00:39, STARS: 1
Depends on the car. Slow car your want to go wider to carry as much momentum as you can, power car go in tight and power out
"Poor_Sh" (ar4x)
11/24/2017 at 00:46, STARS: 0
I’m very unfortunately not knowledgeable enough to answer that. Could you dumb it down? I’ve found a lot of info about my car with regards to the topic, but I’m not exactly sure what you’re looking for.
"G_Body_Man: Sponsored by the number 3" (gbodyman)
11/24/2017 at 00:58, STARS: 0
With an open or a really loose diff, it’s fairly easy to run tight circles. With a fairly tight diff, you have to set it up on the exit but you can put down a lot of power fairly quickly.
"Smallbear wants a modern Syclone, local Maple Leafs spammer" (smallbear94)
11/24/2017 at 07:49, STARS: 0
No experience, but I’d use a third option: come in tight and let it go wider on the exit.
Tightening radius=NFG imo
"miadaman? yes please" (wanjoe)
11/24/2017 at 09:31, STARS: 1
I’d take the circle as tightly as possible and turn-in as late as possible, don’t want to be driving extra distance and experience higher lat g than necessary. Red line is probably closest to my line, except turn radius is smaller and I don’t swing out because you’re just turning for longer (more than 360°).