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M3 Track: Racing and DE Best mod for speed is learning to get the most out of what you currently have. Tracks and DE's is the place to start!


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Old Tue, Sep-01-2009, 10:42:19 PM   #1
Gatorsurgeon
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Default Interesting little issue at Barber

Did the BMWCCA DE at Barber Motorsports Park last week. First time there. What a facility! I've played golf courses that were not as nicely landscaped. Awesome track. Very technical; never gives you a break. The car was awesome. However, late on each day I felt the motor hiccup just briefly, each time in the same place on the track. There's a big sweeping right turn (the carousel) that takes you down and then you accelerate up a short hill before straightening out. At the top of that hill I noticed the engine skip; it only happened when the fuel tank was at 1/3 or less. I went in and topped it off, and the problem disappeared. Anyone else ever notice something like this?
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Old Tue, Sep-01-2009, 10:47:48 PM   #2
maranelloman
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Typical BMW fuel starvation in high-G right handers with less than half a tank.
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Old Wed, Sep-02-2009, 01:21:37 AM   #3
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What Mr. T said.
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Old Wed, Sep-02-2009, 03:46:56 AM   #4
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Yep, I have the same problem in my car...
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Old Wed, Sep-02-2009, 04:10:29 AM   #5
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Default

Experienced the same at < 1/4 tank.
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Old Wed, Sep-02-2009, 03:06:23 PM   #6
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Same here, happened last time at Lightning during the last run of the day when the tank was running low.
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Old Thu, Sep-03-2009, 02:14:34 AM   #7
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That is my favorite track, bar none! I've done it on motorcycles several times. No fuel starvation there. :-) Can't wait to try it out on my M3.

How was Turn 1, coming off the front straight? On a bike that takes major b***s to keep the power on when you can't see the curve. Is it more manageable with four wheels?

Tell me you turned your head to check out the sculptures at 100mph... I did, and couldn't believe my brain decided to do it.
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Old Fri, Sep-04-2009, 04:15:18 AM   #8
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Quote:
Originally Posted by alanbmoore View Post
That is my favorite track, bar none! I've done it on motorcycles several times. No fuel starvation there. :-) Can't wait to try it out on my M3.

How was Turn 1, coming off the front straight? On a bike that takes major b***s to keep the power on when you can't see the curve. Is it more manageable with four wheels?

Tell me you turned your head to check out the sculptures at 100mph... I did, and couldn't believe my brain decided to do it.
I know what you mean about turn 1; it's great once you realize how hard you can drive it in there. Turn 13 is the same way; you can barrel down that hill and have tons of grip at the bottom. Turn 12 is the dicey one. Hit that apex early and it spits you out toward the grass (nicely illustrated by one of the instructors!).

I cannot admit to turning my head toward the artwork, but my eyes flicked over a couple times, which was disconcerting enough.
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Dinan S3-R conversion (Vortech supercharger, intercooler, larger aluminum radiator, larger oil cooler, extra intercooler fan, automatic belt tightener, throttle bodies, exhaust, software, 3.91 diff w. SMG software)
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For the track: D-Force LTW-5's (18x9.5" all around) w. Nitto NT-01's (275/35/18)

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Old Thu, May-26-2011, 10:26:58 AM   #9
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Default Re: Interesting little issue at Barber

Hate to revive this necro thread but I pulled it up while researching Barber Motorsports here. What's the solution to the fuel starvation issue (besides staying above 1/4 fuel level)? An extra pump?
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Old Thu, May-26-2011, 01:11:56 PM   #10
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Default Re: Interesting little issue at Barber

Bimmerworld sells a complete kit with the adapters, wiring, hoses, etc.

http://store.bimmerworld.com/e46-fue...kits-p343.aspx
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