Front shock tower reinforcement

Rahul718 · 08-14-2020, 07:03 AM

I'm curious if the F8x platform is susceptible to front shock tower issues such as cracking and mushrooming like the older e36 and e46 platforms. I started pulling some stuff off to check out the design of the F8x front shock towers and it does look a little bit more reinforced from the factory compared to older generations. In the picture attached, there's a yellow arrow pointing to a black ring that goes on top of the front shock tower. According to the parts catalog, this is a "reinforcement for support".

https://www.turnermotorsport.com/p-2...uine-bmw-part/

Would this alone, plus the factory front strut brace, be enough to deter issues like cracking and mushrooming that occurred with previous e36/e46 platforms. What if stiffer suspension is thrown into the equation - for example spring rates of ~300lbs for the front? Does that change anything?

Appreciate the insight

9M71 · 08-14-2020, 08:01 AM

Car has been out for about half a decade now and I don't think this is a documented problem at all, including on the ones with higher miles or driven in poor roads.

My other car showed mushrooming at 50k miles which was fixed by a mallet and some strut tower reinforcement. honestly think what the f8x has from stock is already enough reinforcement to prevent this from being an issue.

Rahul718 · 08-14-2020, 01:09 PM

Quote:

Originally Posted by 9M71

Car has been out for about half a decade now and I don't think this is a documented problem at all, including on the ones with higher miles or driven in poor roads.

My other car showed mushrooming at 50k miles which was fixed by a mallet and some strut tower reinforcement. honestly think what the f8x has from stock is already enough reinforcement to prevent this from being an issue.

This is true... but I also don't know if the car being out for 5 years is enough time for an issue like that to manifest.

9M71 · 08-14-2020, 01:23 PM

Quote:

Originally Posted by Rahul718

Quote:

Originally Posted by 9M71

Car has been out for about half a decade now and I don't think this is a documented problem at all, including on the ones with higher miles or driven in poor roads.

My other car showed mushrooming at 50k miles which was fixed by a mallet and some strut tower reinforcement. honestly think what the f8x has from stock is already enough reinforcement to prevent this from being an issue.

This is true... but I also don't know if the car being out for 5 years is enough time for an issue like that to manifest.

5 years / 10 years or even less time. It all depends on various variables. My other caris notorious for mushrooming towers and you def see it in cars less than 5 years old.

We have 2 more "braces" bolted onto the strut towers than the average car. we're also not running runflats.

imo there are other much more pressing items to worry about and this is way down the list. just drive the car.

Rahul718 · 08-15-2020, 09:48 AM

Was your other car an e36 or e46 by any chance?

Bump for some more feedback on this

Rahul718 · 08-23-2020, 06:17 AM

Bump for some more comments

F82ny · 08-27-2020, 08:05 AM

Is that actually a reinforcement that's pictured in the first post? How come it's on top of the shock tower whereas for the e36 and e46, BMW made this piece to go under the front shock tower?

https://www.turnermotorsport.com/p-3...s-priced-each/

What's more effective?

08-14-2020, 07:03 AM	#1
Rahul718 Second Lieutenant 144 Rep 209 Posts Drives: F82 Comp 6mt Join Date: Oct 2013 Location: Bergen County, NJ iTrader: (0)	Front shock tower reinforcement I'm curious if the F8x platform is susceptible to front shock tower issues such as cracking and mushrooming like the older e36 and e46 platforms. I started pulling some stuff off to check out the design of the F8x front shock towers and it does look a little bit more reinforced from the factory compared to older generations. In the picture attached, there's a yellow arrow pointing to a black ring that goes on top of the front shock tower. According to the parts catalog, this is a "reinforcement for support". https://www.turnermotorsport.com/p-2...uine-bmw-part/ Would this alone, plus the factory front strut brace, be enough to deter issues like cracking and mushrooming that occurred with previous e36/e46 platforms. What if stiffer suspension is thrown into the equation - for example spring rates of ~300lbs for the front? Does that change anything? Appreciate the insight Attached Images Last edited by Rahul718; 08-14-2020 at 10:58 AM..
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08-14-2020, 08:01 AM	#2
9M71 Major 1234 Rep 1,164 Posts Drives: 2018 F80 M3 \| 6MT Join Date: Jul 2019 Location: NYC iTrader: (2)	Car has been out for about half a decade now and I don't think this is a documented problem at all, including on the ones with higher miles or driven in poor roads. My other car showed mushrooming at 50k miles which was fixed by a mallet and some strut tower reinforcement. honestly think what the f8x has from stock is already enough reinforcement to prevent this from being an issue.
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08-15-2020, 09:48 AM	#5
Rahul718 Second Lieutenant 144 Rep 209 Posts Drives: F82 Comp 6mt Join Date: Oct 2013 Location: Bergen County, NJ iTrader: (0)	Was your other car an e36 or e46 by any chance? Bump for some more feedback on this
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08-23-2020, 06:17 AM	#6
Rahul718 Second Lieutenant 144 Rep 209 Posts Drives: F82 Comp 6mt Join Date: Oct 2013 Location: Bergen County, NJ iTrader: (0)	Bump for some more comments
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08-27-2020, 08:05 AM	#7
F82ny Private 13 Rep 62 Posts Drives: 2016 m4 Join Date: Jul 2019 Location: NY iTrader: (0)	Is that actually a reinforcement that's pictured in the first post? How come it's on top of the shock tower whereas for the e36 and e46, BMW made this piece to go under the front shock tower? https://www.turnermotorsport.com/p-3...s-priced-each/ What's more effective?
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