07-27-2018, 02:35 PM | #1 |
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335i at Summit Point
Been a while since I posed, so I thought I'd share a few laps from a BMW CCA HPDE at Summit Point-Main last weekend.
It was just starting to rain, but the grip was still pretty good; I was running fairly consistently in the 1:28/29s on clean laps, but there are definitely a couple spots where I can pick up a bit more time (if only I had a third day there!) This was my second time there, and it's already become one of my favorite tracks. I'm very happy with the car in its current form. It's so well-balanced and stable, and even without a tune it has no trouble punching well above its weight class. * Edit to add - keep an eye out for the terrified little fawn that's darting around along side the track at about the 4:20 mark. I've heard a few stories of animals on the track at Summit, but fortunately this one only got close. (I don't think anyone else even noticed it except me)
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07-27-2018, 03:47 PM | #2 | |
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How much camber are you running up front?
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07-27-2018, 06:24 PM | #3 |
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DVC, you said your car is so well-balanced and stable. Did you upgrade your suspension or its stock?
I am just learning the behavior of my new 340i, have not tracked it yet, but from what I feel so far, its very floaty, too much body roll and movement in the chasses. I feel like in stock form this car will be almost undriveable on the track for me(I am at advanced/instructor level).
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07-27-2018, 07:17 PM | #4 | |
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For this event, I actually backed down my camber settings to -3.0° front and -2.0° rear, with zero front toe and 1/16" rear toe in. I had been running a few tenths more camber front and rear in the last couple of events, and based on wear patterns and temps from my tire probe, it was too much... Current settings seem to be about right. |
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07-27-2018, 08:15 PM | #5 | |
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These cars are definitely set up to be comfy from the factory, so they have a lot of body roll in stock trim. But the chassis is excellent, and with some bushings and a good set of coil overs, the car really comes alive. |
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07-27-2018, 11:51 PM | #6 |
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Awesome driving man!! Thanks
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07-29-2018, 10:09 AM | #7 |
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Ahead of the curve for specF30
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07-31-2018, 12:39 AM | #8 |
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DVC, what data logging program do you use? The one I used doesn't keep track of current gear.
I am honestly hesitant to modify my car at present. When I had my E46 330 I had lowered it with H&R sport and Bilstein dampers and the handling was very good. However with a kid now I don't want to give her a stiff ride. Not to mention my car needs to be all weather capable (including going up the mountain for skiing). I don't want to loose my adaptive dampers as I do find it quite nice on long road trips. So maybe I should just get a set of sway bars and call it a day? |
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07-31-2018, 10:21 AM | #9 | |
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If you want to leave the stock adaptive dampers on the car but still improve the stability and composure on track, then sway bars would be a good start. I'd also suggest Bimmerworld solid rear subframe bushings, as they don't add much in the way of NVH, but significantly improve the feel of the chassis on track.
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07-31-2018, 12:58 PM | #10 |
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By the way, this was also my first time using the new pickup to pull the car to the track in a trailer. This is definitely a great way to go!!
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08-06-2018, 01:23 PM | #12 | |
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Summit Point is a bit of a drive from Raleigh, but I'd say it's worth the trip!
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08-06-2018, 08:10 PM | #13 | |
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I'll investigate the subframe bushing suggestion and probably will do that at the same time I get the sway bars installed. Btw which brand of sway bars do you recommend? I also am tempting to install the Dinan springs and shockware but when I tried installed shockare last time, the shop says my car isn't compatible and had to return my car without it installed. |
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08-10-2018, 03:29 PM | #14 | |
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I have H&R sway bars, which I'm happy with; the Dinan ones look similar, although with a bit more adjustability. I probably would have gotten the Dinan bars, but they came out after I already installed the H&Rs.
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08-11-2018, 01:21 AM | #15 | |
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