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BMW 3-Series (E90 E92) Forum
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Custom driveshaft shop near Boston / Central MA?
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09-02-2022, 12:37 PM | #1 |
Colonel
1032
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Drives: e92 + f15
Join Date: Jan 2012
Location: Cambridge, MA
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Custom driveshaft shop near Boston / Central MA?
Looking for a shop to do a custom driveshaft for the E9x M diff swap, the two halves (non-M + M rear half) welded and balanced... anyone have a good recommendation / experience locally? Thanks in advance
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09-10-2022, 09:54 PM | #3 |
Brigadier General
1991
Rep 4,013
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I would recommend sending it off for balancing. I dont know about that particular shop, but I know that many shops cannot do high speed balancing and you'll then have vibrations.
I'm by no means a driveshaft expert and I also live in the south where nobody can do anything right but despite what a lot of shops seem to say about "balanced is balanced at any speed", that doesn't seem to be true and there are only a few places in the states that can do high speed balancing. There are two trains of thought: 1) if it's balanced at 3,000 rpm it's balanced at 10,000 rpm 2) there are certain resonances that can happen at different rpms requiring high speed balancing I'm in the second camp, but it could just be that every shop in my area is completely incompetent (which wouldn't surprise me at all) lol |
Appreciate
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