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09-09-2011, 01:22 PM | #45 |
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The overheating/limp mode issue is very interesting. When I went to Road Atlanta back in '09 for Oktoberfest myself and another member (tkbrown) both ran in the same group. He overheated/induced limp...I didn't....only difference between our vehicles? We had different tunes, I had a DCI and he had stock airbox. We both had stock IC's....I have NEVER had my car overheat or get a limp mode (at least due to heat )
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09-09-2011, 01:52 PM | #46 |
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Yeah, guess you're right.
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09-09-2011, 01:54 PM | #47 | |
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09-09-2011, 02:10 PM | #48 | |
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09-09-2011, 02:38 PM | #49 |
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Actually his was newer than mine. I had an '08 and I am pretty sure his was an '09. My tune was also running more boost as well...go figure...
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09-09-2011, 07:57 PM | #50 |
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Well that supports the theory that the AT is overheating the water. I think you should try pure water plus Water Wetter.
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09-09-2011, 08:44 PM | #51 |
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I use motul mocool. Suppose to run 30 deg cooler. Dont know about running 30 cooler but it seem to drop 10 deg
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09-10-2011, 10:30 AM | #52 | |
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Overheating issues? Make sure you are not running one of those DCI's or similar products. Simple K&N drop in filter and stock box. Secondly, you NEED a IC. Turbo lag??? arent you at the track and I doubt you would even notice the change on a daily basis. Third, look into a bigger or adding another oil cooler. And lastly, Meth injection will greatly reduce temps and probably make the biggest difference. Suspension question - do you NEED M3 sway or control arms? Thats personal question since you are the one driving your car, but if you car is set up properly as is, then why would you get that? Larger front sway is a great way to increase the already horrible understeer so be careful with that. If you are running camber plates then coilovers you should have enough adjustment to address most short comings without adding new parts. Once you have played around with your existing setup then can you answer your question about adding more stuff. suspension is not just plug and play...it requires testing, adjusting and seat time to get it dialed in correctly. Brakes - stock pads, stock brake lines, stock brake fluid WILL FADE. If you dont experience it then I will guarantee you are not at your cars limit or not really pushing it. Not a single car out on the track that is running hard and pushing it would survive with the stock pads,lines, fluids. my 2 cents
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09-10-2011, 10:54 AM | #53 | |
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p.s. Did I mention I had a tune and was running higher boost as well? |
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09-10-2011, 11:38 AM | #54 | |
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didnt call out all the BS since I dont want to get in reply battles with folks. People like you and Pixel always have sound advice and there are others. You and I both know what the BS is in here, just given a general warning. Even stuff I say doesnt apply to all since the conditions of my track, temp, humidity etc is different that others. All in all its seat time on the track and making adjustments (one at a time) to see how the car reacts. Nothing out of the box is gonna be perfect until the end user adjust to their needs.
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09-10-2011, 12:17 PM | #55 |
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When I did upgrade my IC I went with HPF though Wish they would hurry up and come out with their other stuff for the E82 platform!!!
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09-10-2011, 12:54 PM | #56 |
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I'm debating whether my next mod should be an IC or an oil cooler. After that an LSD and a tune and I should be golden
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09-10-2011, 01:09 PM | #57 |
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@Pixelblue: Have you had on-track or otherwise heating problems? If the answer is no, then I would get that LSD first considering your situation (as in you track more often than the average 1er owner). If you are having ANY type of heating issues get that IC first....TBH I would get the oil cooler last after the rest of the suff on your list
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09-10-2011, 01:46 PM | #58 |
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Adrian,
Luckily no heat issues so far. Last time the temps were up but under 280. I figured the oil cooler will help reducing some stress. Tune will be last though. Still debating whether dinan LSD or not. For IC I'm thinking hpf or helix. For tune either Cobb or ESS. Getting prep'd for next season...
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09-10-2011, 02:03 PM | #59 |
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Good stuff! I hope to get to VIR next year with the UnitedBMW crew...maybe I will get a chance to check you out there. BTW isn't the DINAN unit a rebadged WAVETRAC??? Not to mention more costly when purchasing from DINAN....
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09-10-2011, 02:17 PM | #60 |
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look forward to meeting you next year! you remember we had a discussion 6 months ago about the dinan lsd. $2500 out the door. no core return and dinan waranty. anyway my first choice would be os giken but that costs more.
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09-10-2011, 02:20 PM | #61 |
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Ah yesss...ok I remember now. I will have to check with my guy in Charleston, SC to see how that would work out for me then.
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09-12-2011, 02:49 PM | #62 | |
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09-15-2011, 03:23 PM | #63 |
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An intercooler is essentially a big radiator. You run the hot compressed air from the turbocharger through the intercooler to bring down its temperature and make it denser. Hot air expands and allows less air to flow therefore prevents you from maximizing power. So you are pretty much dropping intake temps before it gets to the turbo. You feel most power gained in higher gears out on the track.
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09-15-2011, 03:52 PM | #64 |
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Will lower IAT's equal more laps on track before high oil temps?
I had another shop recommend removing the oil thermostat so the oil flows into the oil cooler right away, giving you more laps as well. Any downside to that in AZ?
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09-15-2011, 04:08 PM | #65 | ||
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09-15-2011, 08:36 PM | #66 |
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Everyone likes to talk about upgrading hardware for track use, but a significant change that many might not be doing is using a heavier weight oil. BMW's Castrol 5W-30 is simply not up for track use. I do oil changes halfway between services and after a few track days with the BMW recommended Mobil-1 0W-40. I have yet to see an oil temp over 260/270 (and I push the car HARD).
The best practice would be to use an even higher weight racing oil on the track, like Redline 15W-50; however, you absolutely would have to change back to Castrol/Mobil 1 after the track event as its not suitable for street use. |
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