01-31-2020, 11:30 AM | #1 |
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My Rear Seat Delete
After waiting for 45 days to receive the parts I was able to fit the strut brace and seat delete kit.
I've been vocal that the few kits out there are wicked expensive. I saw a member post about this kit: https://sternperformance.de/en/186-bmw-m2-competition I also bought a ARC cross brace to shore up any structural issues from taking the rear seat backs out. Great quality and solid fit. I also took out the back belts. It looks fantastic and was easy to do. This mod along with my AntiGravity 15.6 lb Lithium battery saves me over 100 lbs!
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01-31-2020, 12:50 PM | #3 |
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I did not weight them but its right around 60lbs total...
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01-31-2020, 07:52 PM | #4 |
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Was the 45 days from when you placed your order, or when it shipped? My order shipped Jan 3rd but hasn’t arrived yet.
Carpet and net look great. Now I’m getting anxious for mine to show up. |
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01-31-2020, 08:56 PM | #5 | |
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it was delayed because of Christmas shipments. They use DHL parcel Service which I guess is really slow!
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02-01-2020, 06:23 PM | #6 | |
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02-01-2020, 07:54 PM | #8 | |
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Anyway, looks great and I’m looking forward to having a bit more space for hauling the track wheels in the back. The weight savings is a nice side benefit. |
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02-01-2020, 10:07 PM | #9 |
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I received that in less than 1 week from initial order
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02-01-2020, 10:08 PM | #10 | |
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02-03-2020, 09:15 AM | #11 |
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Thanks. I didn’t think to try DHL.DE. That worked, but either it’s on a boat and won’t update until it reaches the port of entry, or they lose visibility in the handoff to USPS.
I feel better seeing the tracking info, so I’ll sit tight and it’ll get here when it gets here. Thanks again. |
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02-03-2020, 12:32 PM | #12 |
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Yes once its here in the states its USPS and you would need Josephin to provide you with tracking info.
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02-03-2020, 03:58 PM | #13 | |
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Aren't you worried about weight distribution? |
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02-03-2020, 04:59 PM | #14 |
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That's a pretty large factor since it moves alot of the weight up front causing under steer. For me I plan to have 20 kg of water in the trunk for water injection and radiator sprayers so it'll negate that weight loss nicely.
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02-03-2020, 05:18 PM | #15 |
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Not at all...… I'm a 100lbs lighter and I still can get the car corner balanced.
If your a good enough driver to notice a difference in where the weight is on the 4 corners during a autocross run or HPDE I'd be impressed! 100-200 lbs off the M2C will help in several ways.
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02-03-2020, 06:03 PM | #16 | |
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corner balancing won't help weight distribution (if the delta is really large) front and rear. You can't tweak spring rates, heights and sway bar preload enough to move that much weight front and back, unless you adjust the take rearwards and you'd have to do so significantly. Corner balancing helps most with left to right weight distribution. Yes dropping 100lbs will help in acceleration, and it would help alot for track use if it wasn't all in the same place.
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02-03-2020, 06:05 PM | #17 |
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Taking 40lbs out of the back accounts for a 2.25% change. Nothing to be concerned about.
Edit: To explain further cause what I said was confusing. The rear of my car last time it was weighed was 1775lbs. Taking 40lbs would be a 2.25% change to the rear. It would change my car from being 52/48 distribution to 52.6/47.4 I didn't mean it changes the weight distribution by 2.25%. Last edited by Anthony1s; 02-03-2020 at 06:11 PM.. |
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02-03-2020, 10:02 PM | #18 | |
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I've taken 60 lbs out between the two axles and the other 40 behind the rear. I'll be mounting the Essex 9660 kit up front taking 20 more lbs off the front axle then running 18x10" rims (also lighter than a 19" staggered setup) I'll be running 3.5-3.7 neg camber on my BFG R1's (275/35/18 sq)and about 2.9-3.0 on my street tires (RE71R's)265/35/19 & 285/35/19 on stock rims. This will be on a TC Kline SA/DA Coil over setup with 400/700 spg rates. Last, I'll dial everything in using a internal probe tire pyrometer and my AIM SOLO DL.
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11-07-2020, 10:28 AM | #19 | |
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12-04-2020, 12:56 AM | #21 | |
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12-05-2020, 05:29 AM | #22 |
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I'm having trouble with the link I used to purchase it.
I grabbed this post as a starting point: Originally Posted by F87source View Post I'm not an engineer either, but this is what I think. I believe that the chassis doesn't flex that much anyways to put a significant amount of strain on this brace that it would cause issue. Next I think the mounting point of these braces would be the next weak point way before the brace itself would fail. I looked it up earlier today, the one I designed would be stronger for this use case, as force is only applied upwards. Concentric vs Eccentric Bracing: http://www.seismicresilience.org.nz/...braced-frames/ I always had the ARC brace in my wish list. To the guy asking, both are available here. I was speaking to a guy a while ago with them and he said he received his in less than a week. https://global.rakuten.com/en/store/...item/10000858/ https://global.rakuten.com/en/store/...item/10002592/ I was also looking up carbon tubes and titanium pipe fittings. I may meet with a fabricator and see about making my design one day. I never wanted it for the stiffness, but to stop my laundry basket from sliding forward and tipping over when I go to do laundry. I have my rear seats removed. KC Designs is another one that makes a rear brace for the M2 https://www.tw-kcdesign.com/products_6_32_135.htm https://www.tw-kcdesign.com/about_39.htm __________________ Click "Appreciate" on my post if I was helpful. Thanks!
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