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10-21-2013, 07:47 PM | #157 |
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That is great info, thanks George!! Glad you are back on track!!!
I tracked my VT2 for the first time a couple of weeks ago. In the first 3 sessions I didn't have limp mode once! Unfortunately I said something to a mate about it without touching wood, and in the 4th session I had limp mode twice, and 3 times in the 5th session!!! Never had it 3 times in 1 session before. Still a great day though. Pic below. I will definitely be thinking about the larger cooler. Seems like it would make the most difference out of the other options, plus it's less than half the price of the aluminium radiator (although I would like to get that too at some point). Thanks heaps, and again I am VERY happy to know you are back in full effect. Cheers, Hoops.
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2006 IBlue BMW Z4 MC - ESS VT2-525 Supercharged, JRZ RS1 suspension (500#F, 600#R) with Vorshlag plates, ST Trophy BBK with CL R6E pads, KKS gated exhaust, TMS sway bars, RE rear camber arms, VT engine mounts, Recaro Pole Position (driver), APR GT wing, Street: Volk G2s and Potenza, Track: Volk TE37SLs and BFG R1s.
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10-22-2013, 12:27 AM | #159 |
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Next time I think I'm having a bad day, I'll remind myself that I'm not this guy.
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10-22-2013, 04:23 AM | #160 | |
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Theirs no point elaborating GMD, your entering into a battle of intelligence with an unarmed man Side note GMD your roadster is my fave car on the forum... good to see it back doing work!! update us on the mods youve made, i shall get the zionsville rad during winter.
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10-22-2013, 04:28 AM | #161 |
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on a side note, this limp mode, can we safely say this is happening in the warmer climates only??
edit .. fantastic info on the oil cooler. i may upgrade to this too, if i experience any issues... come on ess, lets get some info on this..
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10-22-2013, 05:03 AM | #162 | |
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10-22-2013, 05:47 AM | #163 |
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Beedub do you do lots of track days or are you autocross only?
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2006 IBlue BMW Z4 MC - ESS VT2-525 Supercharged, JRZ RS1 suspension (500#F, 600#R) with Vorshlag plates, ST Trophy BBK with CL R6E pads, KKS gated exhaust, TMS sway bars, RE rear camber arms, VT engine mounts, Recaro Pole Position (driver), APR GT wing, Street: Volk G2s and Potenza, Track: Volk TE37SLs and BFG R1s.
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10-22-2013, 10:21 AM | #165 |
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i do Sprint circiuits, basically smaller tracks that are timed but its an actual track not a converted parking lot etc i do around 8 of these all day events per year and its very demanding on the car, enough to have to let the oil temps cool and see glowing rotors etc.... ive also done afew track events but due to time constraints they are evneing sessions.... Ess should spec or at least offer the option of the higher capacity oil cooler... The rad is cheap insurance and i will purchase one shortly...im hoping that ess dedicate some time to our platform shortly to iron the issues that some of these guys are seeing..... i wont hold my breath however.
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10-22-2013, 11:20 AM | #166 |
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No you can't say that. It happened to me during 2 warm up laps at 59 F and never happened 2 weeks before of the whole day at 95 F... I can't see how it would be related to the oil temp or water temp going too high...
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10-22-2013, 12:25 PM | #167 | |
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10-22-2013, 01:10 PM | #168 |
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hmmmmm i need to get onto a much larger circuit and beat the car up alittle to see what happens.....
silverstone will do ... will report back! however never seen a limp mode on this car and i can assure you it see's proper hard use. still wish ESS would chime in and formulate a proper response.
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10-22-2013, 01:20 PM | #169 | |
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George |
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10-24-2013, 05:07 AM | #172 | |
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10-28-2013, 11:21 PM | #173 |
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The original VT1 and VT2 systems were designed primarily for street use. As we have found out over the years unlike the E46 S54 platform the Z4M ECU is very sensitive to many things and when pushed hard on the track can be unhappy and have issues at times. We are looking into the option for a larger oil cooler for track use and also looking into a resolution for some cars that have brake booster issues at the track. While we cannot promise we will find every possible issue with the Z4M that may arise during use on the track under all conditions we are looking into the most common. We have a Z4M in-house now that we will be doing some testing with over the next few weeks. When I know more I will update you guys.
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10-29-2013, 09:34 AM | #174 | |
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10-30-2013, 12:59 AM | #175 |
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Drove my VT2 Z4M this weekend a lot and got limp mode 3-4 times, mostly in 2nd or 3rd gear around 7000rpm for no reason, i have a zionville radiator, oil block off valve, upgraded Setrab 36 row oil cooler (VT2 comes with 24) and i was only reading oil temps around 220 when i got limp mode, i was in a canyon doing some technical stuff in 2nd gear with temps around 240ish (the hottest it got) with outside temps around 78 and no limp mode. I walked away from the whole thing concluding that limp mode is not just heat related (in my findings at least). This being said i have no idea what it could be.
On a side note i was going three digit speed when it came on one time, which is scary when you loose power steering and brakes randomly. I quickly turned the car off and turned it back on, but this is a very serious issue with the kit none the less.
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10-30-2013, 05:49 AM | #176 | |
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