12-21-2022, 06:26 PM | #23 | |
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I noticed you mentioned drag racing, have you done the driveshaft carrier upgrade ?, I have one of them at home waiting to go on & would expect this would be beneficial to what you do with your car. Maybe take look at this… https://youtu.be/6p2ASxic2II
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12-21-2022, 06:50 PM | #24 |
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12-21-2022, 07:07 PM | #25 |
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12-21-2022, 07:08 PM | #26 | |
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12-21-2022, 08:04 PM | #27 |
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12-21-2022, 08:28 PM | #28 |
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12-21-2022, 09:04 PM | #29 |
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How about this carbon strut bar? https://www.turnermotorsport.com/p-5...-carbon-fiber/
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12-21-2022, 10:41 PM | #30 |
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That was the point. If your drag racing your car your hammering the driveline with all the hard launches, thus this is a good upgrade for that type of usage.
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12-21-2022, 10:46 PM | #31 |
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I don’t drag race though that’s the thing. In fact, I never launched my car I do street pulls but nothing competitive.
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12-21-2022, 10:49 PM | #32 |
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Oh I thought I read you were drag racing your car, sorry my mistake, too many threads. 😄
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12-21-2022, 10:52 PM | #33 |
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nah haha just a street car that I can have fun with. it’s my fast daily basically. I’m slowly working on aestethics for shows but always willing to add some performance parts if they are going to make a huge difference
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12-21-2022, 11:46 PM | #34 |
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I have the afe brace. I like the solid feel n weight of it. The only thing is it sits tight to the engine cover and will leave a permanent scored mark across the cover where it touches when engine is under load. Also, if doing regular plug maintenance...it will need to be removed each time. Giving the circumstances, I removed my engine cover for ease of plug changes. Overall, I'm happy with the brace and can feel a difference.
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12-21-2022, 11:48 PM | #35 | |
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12-22-2022, 12:06 AM | #36 |
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I also upgraded the front sway bar to m2csr and spl adjustable end links. These upgrades really transform the handling even more so. Highway lane changes are effortless now. Will do some track days when weather permits.
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12-22-2022, 01:19 AM | #37 |
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I been waiting for the M2CSR sway bar to pop up but been unlucky
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12-22-2022, 02:05 AM | #38 |
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I'd rather just buy aftermarket sway bars, you will have more options as well.
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12-22-2022, 02:28 AM | #39 |
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I would highly recommend the aFe Control Strut brace for the M2.
I've tried the Racing Dynamics one, but eventually switched over to the aFe control one since I wanted something much stiffer for spirited driving and track days. In general, you won't notice much in day-to-day driving (other than slightly more 'controlled" handling of bumps since force is I guess being passed more evenly through the entire front end as a result of the strut brace), but for spirited driving or track days you can definitely feel the improved responsiveness and stiffness of the chassis. I looked at F87source thorough explanation of the Turner Corner braces. Although I am inclined to agree with the benefits, I do think there are better options on the market for a similar price range. I currently have on order this which are thicker metal paired with a secondary horizontal brace to tie in the corner braces: https://www.blackhawkjapan.com/en-us...398951da&_ss=r I do think the combo of a Strut Bar + Reinforced Corner Brace would be "better" than the M2C, M3, M4 Carbon bracing since it would provide a significant amount of reinforcement across all forms of chassis flex (and would be cheaper and less intrusive overall). However, it is purely up to how you drive the car and what you are looking to get out of it. It's definitely noticeable for daily driving, but the true value really shows when you are driving at 7-8/10ths and actually pushing the car in corners. |
12-22-2022, 03:08 AM | #40 | |
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All 3 are a 30mm solid bar with 3 point adjustment on the blade. Oddly the Genuine M2CSR bar is the cheapest (Turner/ECS have them new).
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12-22-2022, 03:26 AM | #41 | |
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1) The TMS braces are tubular carbon fiber with 2 different types of weaves and rated up to 3000kg + of load without failing. And carbon fiber when done right like these TMS braces, is multiple times stiffer than CNC aluminium (again aluminium doesn't have a very high youngs modulus compared to other commonly used metals, in fact it is the lowest even when speaking about 7075 aluminium which is air craft grade). So I highly doubt the CPM braces come close to matching the TMS corner braces in terms of rigidity. 2) I also do not know how well the horizontal bar will fair, because it is a long piece of metal and only tied down at the ends, this means the length for a force to act on is quite large meaning more force can be put onto the ends that do bolt down. And since aluminium is really isn't that stiff, this part likely will flex alot more than the benefits they give. 3) A flat brace, especially one with contours will be suscpetible to alot of torsional stresses, and since it doesn't have alot of material in the width section it will not be able to cope with these torsional stresses very well. Think a pieces of paper vs a rolled up paper, the rolled up paper is much stronger and more rigid in every single direction of force. This is the same with these braces, the tubular TMS braces will be much stronger and more rigid than a flat cnc aluminium brace just based on design alone and not factoring in material. 4) In terms of bracing material, in general you never want to use aluminium because it is too flexible. This is why most braces are steel, or if they must be aluminium they are tubular with a skeletal core, something a flat cnc object does not have. So overall I highly doubt they will offer performance even remotely close to the TMS brace. But at the end of the day it will be miles better than the stamped steel stock braces which literally can bend by asserting some force with your hands alone.
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12-22-2022, 11:00 AM | #42 |
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This is true. On mine, one side has BMW and part #, the other side has H&R on as well. The one I have is 2 point adjustments.
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12-22-2022, 02:08 PM | #43 | |
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1) 6k 5HS carbon fiber: The source for this data is a carbon supplier:https://www.fibreglast.com/product/6...rbon_fiber_all Tensile strength: 610 - 700 KSI (which is Kilopound per square inch) = 4,205.8 Mpa - 4,826.33 Mpa Tensile Modulous (Young's Modulus or rigidity): 33.6 - 34.9 MSI (million pounds per square inch) = 231.66384504 Gpa - 240.62702953 Gpa 2) Grade 5 titanium (Ti6Al4V which is the most commonly used titanium in industry): The source for this data is from AZO materials: https://www.azom.com/properties.aspx?ArticleID=1547 Tensile strength: 862 - 1,200 MPa Tensile Modulous (Young's Modulus or rigidity): 110 - 119 GPa 3) Chromoly steel The source for this data is from: https://material-properties.org/chro...melting-point/ Ultimate tensile strength: 700 MPa Tensile Modulous (Young's Modulus or rigidity): 205 GPa 4) Stainless steel grade 304 (a pretty common stainless steel that is both very corrosion resistant and strong): The source for this data is from Azo material: https://www.azom.com/properties.aspx?ArticleID=965 Tensile strength: 510 - 620 MPa Tensile Modulous (Young's Modulus or rigidity): 190 - 203 GPa 5) 7075 Aluminium (known for being the strongest grade of aluminium and used in air craft): The source for this data is: https://www.matweb.com/search/DataSh...bbf43f79c51b7d Ultimate tesile strength: 572 MPa Tensile Modulous (Young's Modulus or rigidity): 71.7 GPa It's your choice if you want to swap corner braces, my take is that aluminum braces are never going to be as rigid as carbon, and that for the money the TMS braces are unrivaled. |
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12-22-2022, 02:08 PM | #44 | |
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I know RKP has (or at least had) some corner braces which are made of stainless steel tube. They would technically have a higher youngs modulus than carbon based on a quick google search (~183 GPa vs ~190 GPa), and given their design might be "more compliant" for cornering and bumps. Again, this is all heresay on my part, and I might end up cancelling my order for the CPM braces to try something else given what you shared F87source. I also just realized we had a huge side discussion in shaneguags thread. So, for sake of clarity, if you plan on keeping the M2 for a while and therefore don't care about the resale value as much, I would say the M2C carbon bracing is the best as it looks the most OEM and obviously has been tested by BMW engineers, with the caveat that it requires a lot of parts + some modification and will generally cost you more than $1K (if you do labor yourself). If you want an easier set of mods (which are both cheaper and is likely equivalent OR better than the M2C carbon bracing) I would recommend getting the aFe Control Strut brace + some corner bracing (like the Turner pieces). These also have the added benefit of being entirely reversible for sale down the road unlike the M2C carbon bracing (from my knowledge). **Note: For the aFe Strut Brace, you may not be able to use the stock engine cover. I had an issue where the engine cover was barely rattling against the brace causing a very annoying noise. You may be able to add some foam between the cover and the brace to deaden that sound, but I didn't bother and just got rid of the cover altogether.** |
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