07-18-2018, 07:52 AM | #1 |
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f30 vs f80 chassis differences
Does anyone know if there are any true chassis differences across the 3 series line-up? I have a nearly irreparable M3 (frame damage) and I'm contemplating moving every component to a cheaper, f30 donor body. Most parts on realoem seem to match up.
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07-18-2018, 09:09 AM | #2 |
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There's no way that makes financial sense. But are you strictly talking body panels, or drivetrain?
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07-18-2018, 09:20 AM | #3 |
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Haha. it might when you have an irreparable M3 worth literally nothing and can buy a high mileage 328 for 10 grand. spend 120 or so hours swapping parts; and boom. *possibly* lemon from aids... I'm more concerned about whether or not all of the suspension components (shocks, rear diff, etc) are of similar spec/location and will bolt up. i would literally be transferring every removable part from the M3 to the f30
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07-18-2018, 10:10 AM | #4 |
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There are definitely chassis/subframe differences and how they mount. Also things like different wheel hubs (rotors aren't interchangeable between F80/30, but calipers are).
If you're interested in parting it out, I might be interested in a couple of items. |
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07-18-2018, 10:15 AM | #5 |
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this guy sounds like he's on a mission.. i'd like to see you swap all of that into a F31 wagon instead.
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07-18-2018, 12:34 PM | #6 |
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07-18-2018, 12:39 PM | #7 |
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The hub/rotor comment is obsolete as I would be transferring the entire suspension and hub assemblies over from the f80. I'm legitimately talking total strip down and parts swap. Every removable component. lights, gas tank, subframes, differentials, wiring harnesses, carpet, etc... I would only be interested in a part out if there were several buyers lined up for large items.
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07-18-2018, 01:43 PM | #8 |
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If you're talking about EVERY single component.. I doubt it's feasible. F80s are wider, allot of the components might be a tad too big for the f30 chassis. I know the exterior body is doable and I've seen engine swaps. If you're up to tackle that BIG job of swapping everything at the risk of finding out it wont work, go for it. Much respect if you actually accomplish it.
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07-18-2018, 02:30 PM | #9 | |
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07-18-2018, 09:52 PM | #10 | |
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You purchased a totalled m3 with no inspection and the sellers disguised the real damage. So you are looking to save money and put on F30 frame. Bad idea. You’ll lose even more value in what was a mistake to begin with. Bottom line. Bad idea to buy salvage at auction unless you have a good deal of experience on how not to get scammed. |
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07-19-2018, 02:17 AM | #11 | ||
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07-19-2018, 07:10 AM | #12 |
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Personally I'd take the loss. It would be a nightmare to swap. There are a few people on here that have done f8x builds on their f3x and they talk about all of the issues they had to overcome and it takes months and months. The body work in the rear will be the biggest hit because while your front fascia is removable the rear is welded.
The best option if you're willing to store it for longer is buy another used F8x, swap your upgrades onto it, and then part out the remaining stock parts that are in good condition. I've done that with other cars in the past. But if you buy a 320i and swap everything over then all you'll have then is a pile of parts that's worth even less than the F8x parts. I do see what you're talking about on realoem though. I can't find many differences in the base that would indicate the F30 is missing holes that you'd need for routing stuff or attachment points for accessories. |
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07-19-2018, 08:27 AM | #13 | |
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Better than throwing $25k away as you would get some back. Making a Frankenstien F30, bad idea. You’d lose whatever value you had in it as well. |
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07-19-2018, 10:01 AM | #14 | ||
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07-23-2018, 05:29 AM | #15 |
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I was briefly considering the opposite to improve my f30, differences are so numerous that it isn't worthwhile;
Subframes are different, suspension arms and dampers are different in size, and in electronics as well; i believe f8x has adaptive dampers, so it wouldn't connect. Then the diff doesn't attach the same way at all, and the f80 is electronic diff so you can't just put a passive diff in place. Then the wheels wouldn't fit without the body parts with wider arches, etc etc. Fun if you have very deep pockets, for mere mortals a nightmare...
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07-24-2018, 12:25 AM | #16 | |
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07-24-2018, 02:03 AM | #17 | |
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It’s clear you already made up your mind, probably prior to even posting. So we’ll leave you to this money pit. |
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07-24-2018, 02:29 AM | #18 | ||
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07-24-2018, 02:35 PM | #19 |
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07-24-2018, 11:33 PM | #21 |
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You've never done anything you knew was a bad idea before diving in? I know I have... Here's my perspective: this is not a great idea, simply based on dollars and cents. No matter how much you build up an F30, it's still an F30. Which means depreciation. Add that to a FrankenMF30, and you have a car that really would only be worth something to a handful of people across the country.
But none of that is relevant here, he knows financially it's a bad idea, but he seems to want to try and see if it can be done. His greatest concern is: Is it impossible. I guess with enough time, effort, and money, nearly nothing is impossible. Especially what you're attempting to do. IK6SPEED believes you're going to abandon the project for one of the many reasons and obstacles you're going to certainty run into. I think you've made up your mind, I just ask to keep us posted, because this definitely sounds interesting. |
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07-25-2018, 01:44 AM | #22 | |
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Then go sell your F30 and get a CPO F80 and enjoy a level of engineering that you will never be able to achieve with your ambitiously time consuming and expensive swap.
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