2014 86CUP Challenge to NorCal with NCRC

[sw20kosh]

Originally Posted by ddeflyer

Adding steering while understeering is a good way to spin. Basically you add steering, get a little effect and then the weight shifts and puts more pressure on the front wheels and suddenly you get alot more lateral force going and.... bye bye.

hmmm never experienced that. Usually when I am plowing for whatever reason, more steering angle doesn't do anything but more plowing. The front tires are at the limit of traction already so more angle shouldn't do anything. Maybe you meant when the car finally slows down? And then you have too much steering angle cause you were trying to correct the understeer ... at which point the car would rotate and the rear end could come round?

[sw20kosh]

Originally Posted by themajesticone

sorry I added music because its pretty much 90% wind noise so you can barely hear anything else at all. thought wind noise would be annoying

LOL loves me some Thill video with beats!

[ddeflyer]

Originally Posted by sw20kosh

hmmm never experienced that. Usually when I am plowing for whatever reason, more steering angle doesn't do anything but more plowing. The front tires are at the limit of traction already so more angle shouldn't do anything. Maybe you meant when the car finally slows down? And then you have too much steering angle cause you were trying to correct the understeer ... at which point the car would rotate and the rear end could come round?

This is a great explanation: http://blog.axisofoversteer.com/2013...oversteer.html

The problem is that the added steering does nothing until the front wheels gain more grip and then the steering lock does ALOT!

This increase in grip can be from either lift off oversteer, some other weight transfer, or, as you pointed out, just slowing down so that you reach maximum grip of the tires (ie. optimal slip angle).

[RehabJeff86]

Originally Posted by CSG Mike

It'll start intervening as you get faster

It happened to me this past weekend - so yes Pedal Dance is the way to go.

[RehabJeff86]

Originally Posted by acx23

I heard it was pretty hot this past weekend so the track was probably pretty greasy. Regardless of that, if you're understeering a lot, then it usually means your tires are over inflated. Do you know what PSI you were at? If not, then there's your issue.

yes greasy is the best way to put it

[orthojoe]

Originally Posted by mkivsoopra

Hmm.. how about this set of files? It's pretty much everything related to that download. Previously, I attached the output of the "Export Test Run" option. Thanks!

Too big to attach, so I've put it here: http://www.mkivsoopra.com/BRZ/GarlandBRZ03082014.zip

Mods on the car?

[acx23]

Oh man... I guess I'm not going fast enough then

Were you guys at Laguna Seca a couple Fridays ago?

I found this link from another thread
http://www.autofactory.jp/product/to...&cate=4&seq=11

Good thing I'll be in Japan next month. Field trip to Shizuoka

Originally Posted by CSG Mike

It'll start intervening as you get faster

[EAGLE5]

Originally Posted by acx23

You never want to have the car act unexpectedly. You might not feel it's killing your run right now, but as you get faster, either you add more power mods or otherwise, it will do you hurt.

How did you do at T Hill? What oil temp are you getting?

I did well. Tom, the NCRC instructor, spent a little bit of time with me and mostly liked what he saw. A few corrections on corners here and there. Mainly I need to work on smoothing out the heel toe. My knees down turn inwards well, so I need to do a weird heel on the brake and toe on the accelerator method. That makes smoothness terribly hard to come by. I still did later braking than pretty much everybody in front of me.

Oil temps went way too high, though, and the computer threw codes all day. In the end, I had to cut the second day short as the car went into limp mode on the track. The PFC and Hawk brake pads stopped me quite well. I think I need less bite on the Hawks in the back. The PFC brakes lost all of 1.5mm in three track days, not counting my dad in driving school and a week of street driving. I didn't measure the Hawks.

I was on Primacy tires, so maybe the limits were low, but like I said, the stability control really did almost nothing. I did notice it, but it was piddly stuff. I could get quite a serious slip angle on turn two without it kicking in. Anything more and I'd be counter steering while scrubbing off speed and running wide. DARIFTA! Then Luc would be grumpy or something. Playing with tire pressure helped a lot with the rear-end grip, which made me faster. With the trunk empty, I had to go down to ~29psi cold in the back and 31 cold in the front before I was using all the tire. Made for a noticeable amount of grip. I should have done it at Laguna Seca like you recommended, but I was getting my confidence back at that point. It was actually like two years since I did a track day.

I truly love the double apex line on turn two. I consistently gained ground with it. Lots of fun.

I think I'll be doing two days in December at Laguna. I enjoyed Thunderhill a lot, but Laguna was more fun for me. And cooler. Goodness.

[CSG Mike]

Originally Posted by acx23

Oh man... I guess I'm not going fast enough then

Were you guys at Laguna Seca a couple Fridays ago?

I found this link from another thread
http://www.autofactory.jp/product/to...&cate=4&seq=11

Good thing I'll be in Japan next month. Field trip to Shizuoka

I wasn't but @ImperiousRex was with his s2k...

[RehabJeff86]

Originally Posted by acx23

Oh man... I guess I'm not going fast enough then

Were you guys at Laguna Seca a couple Fridays ago?

I found this link from another thread
http://www.autofactory.jp/product/to...&cate=4&seq=11

Good thing I'll be in Japan next month. Field trip to Shizuoka

Does it really turn off TRC VSC like how pedal dance does??

[acx23]

that's the claim.

Originally Posted by RehabJeff86

Does it really turn off TRC VSC like how pedal dance does??

[RehabJeff86]

Originally Posted by acx23

that's the claim.

R u getting the premium with the switch?

[acx23]

Yup. It's only $30-$40 difference. The switch looks pretty legit too.

Originally Posted by RehabJeff86

R u getting the premium with the switch?

[acx23]

I think I saw his red FRS. Pretty sick setup too.

Originally Posted by CSG Mike

I wasn't but @ImperiousRex was with his s2k...