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Model 3 sub-frame supports
- Thread starter canasion35
- Start date
Have you considered the MPP rear subframe inserts as well?
https://www.mountainpassperformance.com/product/rear-subframe-inserts-tesla-model-3/
I've no experience with adding bracing to this car, nor plans to, but I can believe it would be beneficial. The chassis rigidity of my 2021 M3P feels fine...but definitely not top of class for 2021.
The front brace looks interesting, it should add some solidness and improved steering feel.
The rear application looks redundant, I'm not sure it's going to provide any improvement. The subframe inserts from MPP would be a better buy.
The rear application looks redundant, I'm not sure it's going to provide any improvement. The subframe inserts from MPP would be a better buy.
Gauss Guzzler
Safety Score = 42
I believe that unsettled feeling comes from hitting the bump stops. Even at stock height there's only ~3/4" of rear suspension travel before the bump stops come into play. Shortening them makes a very noticeable difference in handling feel but also makes high-center scraping on driveways even more common.
Big agreement there. I've said since almost day 1 with this car that rear compression travel feels very limited. That said, I'm assuming this is about mid-corner feel, not bottoming out over big dips or bumps.
As for stiffening the rear, @canasion35 have you upgraded all your rear control arms yet? (whole arm replacements or otherwise) MPP's writing on this says that should be a first step, not much point in stiffening the rear subframe if you still have stock control arm bushings. I can't vouch for that from my own experience, but I'm certainly inclined to trust MPP on it.
I would not touch the front subframe at it is designed to fold upon itself in a heavy front end crash. The subframe will basically fold over. I have seen crash test video footage doing just that. The ultra racing front subframe bar seems like it would restrict that movement.
watch around the 1:25 mark and you can see how the subframe compresses upon itself. - I would not touch that area.
I have not upgraded to their arms just yet however i have really been thinking about it. I suppose from the responses here their sub-frame bushings will be a worthwhile upgrade!
This is interesting. I just picked up a Hardrace brace that couples the compression arms and nothing else — it looks like they specifically engineered it not to interfere with this front-to-back subframe compression.
The music in that video is way too happy for the setting
I agree that replacing the stock arms/bushings in the rear will fix the unsettled feeling you are describing. I had the same complaint- and even brought the vehicle to service for it - and was told it was normal.
Then I went and replaced all the rear arms with MPP arms - holy cow what a difference. It absolutely transformed the way the car handles. The unsettled feeling is completely gone for me, and since replacing the arms doesn’t affect the way the subframe behaves in a crash, there’s no worry about compromising the vehicle’s stellar crash protection engineering.
Then I went and replaced all the rear arms with MPP arms - holy cow what a difference. It absolutely transformed the way the car handles. The unsettled feeling is completely gone for me, and since replacing the arms doesn’t affect the way the subframe behaves in a crash, there’s no worry about compromising the vehicle’s stellar crash protection engineering.
Have you installed the brace and do you like it.This is interesting. I just picked up a Hardrace brace that couples the compression arms and nothing else — it looks like they specifically engineered it not to interfere with this front-to-back subframe compression.
The music in that video is way too happy for the setting
Not yet, it looks solid but I’m waiting on a couple of other minor parts before I get under the car again for real. Will report back
Do you have the MPP bushing and are you planning on installing it with the bar? I need to check compatibility. Thanks.
www.mountainpassperformance.com
Solid Front Lower Control Arm Bearings for Tesla Model 3 & Model Y
The Solid Front Lower Control Arm Bearings for Tesla Model 3 & Y offer a super direct, laser-sharp turn in and more overall front grip!
www.mountainpassperformance.com
The brace just reinforces the compression arms, it doesn’t really cross paths with the FLCA.
See photos 7-9 in Hardrace Front Lower Brace for Tesla Model 3
See photos 7-9 in Hardrace Front Lower Brace for Tesla Model 3
Oh yeah that one would be fine. I was looking at the first photo OP posted that ties those into the FLCA mounting points!
