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03-03-2018, 01:23 PM | #89 |
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Drives: 'E46 M3 Race Car, '23 X7
Join Date: Jan 2009
Location: Wisconsin - Instagram - @slicer_m
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See my post (#69). I added pics of my DIY mount. MK1 in pics. I think I will modify it to reduct the weight - MK2 in the works
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'23 X7
'04 M3 - Fall Line Motorsports Built Race Car - S65 swap, Dry Sump, Bosch Stand-Alone ECU, Drenth Sequential Trans, MCS 3-Way, Flossmann Wide Body, Brembo Motorsports Brakes, Drexler LSD, BBS E88 Etc. INSTAGRAM - @Slicer_M |
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03-04-2018, 04:47 PM | #92 | |
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03-05-2018, 04:57 PM | #93 | |
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I haven't confirmed what rs-20 uses for their BMS isolation. but I expect that its based on electronic switching. I was conversing with Tony at VPH and he confirmed that VPH use an electrical contactor for isolation switching in their BMS. Contactor/relays provide absolute circuit isolation whereas electronic isolation is prone to current leakage. We used to see this in the PLC control panels that we built. Some brands of PLC output triacs would still fire an LED circuit indicator even when switched off. We used to add relays to provide absolute isolation. This also explains the added cost of the VPH batteries. I just placed an order Thanks guys for all the info here in this thread!!
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'18 718 Cayman S Lava Orange (sold) '13 E92 M3 Santorini Blue (sold) '07 Z4 M Coupe Alpine White (sold) |
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03-06-2018, 05:21 AM | #94 | |
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04-07-2018, 05:50 PM | #95 | |
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Will report back at end off month. Also have a track day coming up this month.
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04-13-2018, 12:01 AM | #96 | |
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As roastbeef said the RS-20 doesnt work for the M3. I tired to bed in my brakes last night and the ABS was malfunctioning cause me to lock up along with an abs error on the iDrive. Swapped back to the OEM battery and the brakes bedded in without issue.
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04-24-2018, 11:22 PM | #97 | ||
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Any updates
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///M3... Don't want more power, Just want it to turn sharper one step closer each time. -Ohlins TTX Raceline, PolePostions seats, Akrapovic EVO, ARC-8, 1/2 Cage, Seat Delete, Stoptech BBK, solid Subframe and diff bushing, spherical bearing on everything.
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04-25-2018, 05:22 PM | #98 |
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I didnt speak with Anti Gravity since am not the only one with issues I just ditched it.
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04-25-2018, 09:36 PM | #99 | |
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///M3... Don't want more power, Just want it to turn sharper one step closer each time. -Ohlins TTX Raceline, PolePostions seats, Akrapovic EVO, ARC-8, 1/2 Cage, Seat Delete, Stoptech BBK, solid Subframe and diff bushing, spherical bearing on everything.
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04-25-2018, 11:02 PM | #100 | |
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04-29-2018, 01:37 AM | #101 | |
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roll around with your rear seats popped so you can get into the trunk easily if you come back to the car and it suddenly doesn't have power. my car was perfect for three days and only started acting weird at the track. you may want to consider bringing your oem battery to the track with you in case you need to change it out... if i understood what i have previously learned about these cars correctly, the alternator and electrical system runs differently when you're pushing the car (track conditions). i suspect it may have something to do with the problems i had.
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04-29-2018, 04:57 PM | #102 | ||
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///M3... Don't want more power, Just want it to turn sharper one step closer each time. -Ohlins TTX Raceline, PolePostions seats, Akrapovic EVO, ARC-8, 1/2 Cage, Seat Delete, Stoptech BBK, solid Subframe and diff bushing, spherical bearing on everything.
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04-29-2018, 09:01 PM | #103 | |
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04-30-2018, 08:49 AM | #105 |
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Meanwhile the Voltphreaks battery in my car is about to kick off year 2... no free lunch? I'm as surprised as the next person I was expecting this to be an expensive and short-lived experiment for a car that's 99% street. But I wasn't scared because I bought the correct year so I can use my key to get in the trunk if the battery's dead.
Glad that there is competition seeping into this market though, almost all cars sold new have some sort of condition-based charging now, including common performance cars like the Murderstang. Hopefully it will drive price down and we can all stop replacing lead acid batteries every 2 years, lol
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05-03-2018, 09:32 AM | #106 |
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Not trying to thread jack, so lets remember this is about Voltphreaks battery, but this is just a comparison for member to make a educated choice.
I created a full mounting system solution for the battery and I'm using a Antigravity ATX-30rs. So I had no trouble with mounting. I can share CAD module if anyone like to use it. designed a holder and resigned the power distribution fuse block. see below: using 3D printed parts. capable of holding a 35lbs battery IMG_1130 IMG_1131 IMG_1141 IMG_1143 IMG_1175 [url=https://flic.kr/p/25k4ghH]IMG_1180[/url
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///M3... Don't want more power, Just want it to turn sharper one step closer each time. -Ohlins TTX Raceline, PolePostions seats, Akrapovic EVO, ARC-8, 1/2 Cage, Seat Delete, Stoptech BBK, solid Subframe and diff bushing, spherical bearing on everything.
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05-03-2018, 01:00 PM | #108 | |
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05-03-2018, 11:04 PM | #109 | ||
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///M3... Don't want more power, Just want it to turn sharper one step closer each time. -Ohlins TTX Raceline, PolePostions seats, Akrapovic EVO, ARC-8, 1/2 Cage, Seat Delete, Stoptech BBK, solid Subframe and diff bushing, spherical bearing on everything.
Last edited by tlrid3r; 05-04-2018 at 09:02 PM.. |
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05-17-2018, 07:54 AM | #110 |
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I just got my VPH-850 and Tony was an awesome resource to speak with before I ordered too! I will give the velcro strap a try before I take a dive into fabbing up a legit bracket. Does any one have dimensions of the base they could share?
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