08-29-2020, 10:31 PM | #1 |
Private First Class
41
Rep 192
Posts |
New to F30 for Tracking, got some questions
Hi Everybody,
I picked up a 2016 328i for DD and occasional HDPE events (maybe 5 events of tracks/autox a year). I've done a handful of events with my other car (S2000) so I'm no stranger to the basics but i'm curious with everybody's experience with the F30 specifically. Will be putting on a set of Michelin PS4S for good DD and high performance use. I'm looking to use the car at the track for fun and not chasing down lap times. Mainly will just be taking the car to Thunderhill East/West and Laguna Seca. Was hoping to get some in the following topics: Brakes: I've read the threads and it seems like the M sport (blue caliper) brakes with OEM pads should do the job with high temp fluid. Going to be putting in RBF 600 or ATE Type 200. Will this be enough? (May just do RBF600 since laguna does require heavy braking) Drive Mode: Split between running Sport+ or Sport with DSC off? I read that the eLSD is only on when DSC is off but can ruin the tires faster because it'll cause it to spin more (i understand that this could be reduced by how you contol throttle)? Vs the Sport+ DSC is minimal which maybe good as well but then when DSC kicks it it wears the rear brakes more? I'm leaning towards to running Sport/DSC off since I do have some peddle control (modulating the peddle) and don't think i'll just be flooring and spinning the tires. Any help or additional tips would be great about the F30 on the track if possible! Thanks! |
08-30-2020, 06:28 PM | #2 |
Lieutenant Colonel
998
Rep 1,934
Posts |
Better pads and fluid. RBF or SRF will be fine. If you have the single piston brakes I suggest finding some of the stock Brembos from 6cyl F3x. They are 340mm rotors but more than enough.
If DSC is off then it will always go into comfort throttle and steering. DSC is still on in sport/+ just with higher thresholds. DSC off is the only time eLSD is on. It will eat your pads because it simulates an lsd by braking on one wheel.
__________________
F30 335iX | Remus Axleback | Fabspeed Catted DP | VRSF Comp IC | 18X9 ET35 19lb MT1 | 255/40/18 ECS | Ohlins RT Millway Street | Millway Control Arm Bushings | Turner Endlinks | TMH 75mm 14x1.5 Studs | BMW MPerf LSD | XDelete | Pipercross Filter | MHD Stg2 93
|
Appreciate
1
casualDIYer497.50 |
08-30-2020, 06:52 PM | #3 | ||
Private First Class
41
Rep 192
Posts |
Quote:
Quote:
What is the general consensus on the mode to use? Seems like Sport+ off is the way to go since it'll probably not spin tires or eat the brakes? Or should I just disable the elsd and do dsc off? |
||
Appreciate
0
|
09-25-2020, 04:16 PM | #4 | |
Major General
1898
Rep 5,516
Posts |
Quote:
The pad compounds are more important than the brake caliper and rotors for track use. You can get away with track pads on base 312 rotors and be fine on track. There is no need to spend a lot of money. Autocross is not track, the speeds are lower and you are chewing up tires more than brakes at autocross. You will be fine with stock brakes at autocross. Overall consumables are much lower at autocross.
__________________
Auto Detailing Enthusiast!
|
|
Appreciate
1
Blahx929.50 |
09-30-2020, 02:55 PM | #5 | |
First Lieutenant
160
Rep 320
Posts |
Quote:
The PS4S are a decent tire. Again the 328 is lighter so the Michelins should hold on track. Autox is a different story...the PS4S will not have enough time to get up to temp for max/optimal grip. You can still compete with them but they may wear out more quickly because they stay cold for most of the run so they slide around a bit reducing their life. Last edited by brigade24; 09-30-2020 at 02:57 PM.. Reason: covid clarity |
|
Appreciate
0
|
10-06-2020, 01:27 AM | #6 | |
Captain
723
Rep 943
Posts
Drives: F30 328i Msport
Join Date: Aug 2018
Location: WA
|
Quote:
I found that the car needs a little more camber from stock form to really dial in the front grip, and a square set of tires will help a lot with some of the existing understeer engineered into the car. As for tires, I'm on the last bit of life of my michelin super sports and can confirm they take quite a bit of work to get up to temp, hope its a hot day lol, when they are cold and worn they have really bad grip, so dont go gunho until they are warmed up. |
|
Appreciate
0
|
01-27-2021, 12:33 AM | #8 | |
Major
498
Rep 1,438
Posts |
Quote:
But Watch your tire pressure or you will kill the 4S. I killed two tires by chunking on 2 separate occasions. The first time was stubbornly refusing to accept the reality that as the tires heated and grip fell off I could drive my way out of the problem. The second time was just plain stupidity forgetting to check pressure. The lesson was finally learned and I have yet to kill any more 4S tires. The normal pressure on the street I ran was mid-30s (e.g. 34 front, 36 rear). But, on the track, I had to drop the cold pressure to 30 front and 31 rear and the tires would still raise to 35 - 36 after 9-10 laps, a cool down lap, and drive back to the pits. Also, no shame in running a cooler lap or two depending on your track. I usually hit my best laps at the track I drive on lap 4-5. Then, lap times fall because the tires have begun to get overheated. I now run a cooler lap 6, followed by a hot 7/8. The cooler 6 lap allows for a faster 7/8, at least compared to driving the crap out of the tires from lap 1. |
|
Appreciate
1
alohasurftoad3310.50 |
01-29-2021, 10:41 AM | #9 | |
New Member
35
Rep 24
Posts |
Quote:
You'll find the torque of the n20 makes for an easier drive. The chassis is no s2000 but it responds to inputs. I run with esc off and never trigger the e-lsd with 255 summer tires. Have fun out there. These cars are more capable then they appear. I ran similar lap times to my stock ap2 s2000 (although not nearly as engaging). |
|
Appreciate
0
|
Post Reply |
Bookmarks |
Thread Tools | Search this Thread |
|
|