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Tracking / Autocross / HPDE / Drifting What these cars were built for! |
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09-19-2019, 09:39 PM | #15 | |
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09-19-2019, 09:52 PM | #16 |
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09-19-2019, 10:15 PM | #17 | |
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The Following User Says Thank You to Goingnowherefast For This Useful Post: | whataboutbob (12-24-2019) |
09-20-2019, 07:01 AM | #18 | |
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09-20-2019, 08:39 AM | #19 |
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So if it is the driveshaft, then it certainly sounds like an imbalance. I don't know where you can take it to get it balanced, but that would certainly solve your problem if it IS in fact the driveshaft and you would like to hold on to it.
Some interesting instructions to finding if you have an imbalanced driveshaft I found here. I would be far too lazy to do this though I guess in your situation it's basically impossible anyway, as you only experience it at higher RPM's. http://www.demandaam.com/technical-s...haft-balancing |
09-20-2019, 10:45 AM | #20 |
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Since it's always around 5500 RPM in any gear, wouldn't it make sense for it to be something on the engine side of the transmission rather than the driveshaft?
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09-20-2019, 11:23 AM | #21 | ||
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I have read in other threads that balancing didn't help. |
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The Following User Says Thank You to NoHaveMSG For This Useful Post: | Goingnowherefast (09-20-2019) |
09-20-2019, 12:38 PM | #22 | |
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09-22-2019, 10:31 AM | #23 |
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SPL's kit has shims, so you can install at OE height, or raise/lower it depending on what you want to do. Super easy to adjust.
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09-24-2019, 06:56 PM | #24 |
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How many out there with CF driveshafts have vibrations ?
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09-25-2019, 10:00 AM | #26 | |
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I'm beginning to think if you have stiffer motor, trans, and diff mounts, typical of a race car, then virtually any 1 piece drive-shaft will vibrate badly. Maybe I'm wrong.
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The Following User Says Thank You to prandelia For This Useful Post: | Dzmitry (09-25-2019) |
09-25-2019, 10:20 AM | #27 |
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How bad are these vibrations? I have vibrations and/or resonance from either one, or a combination of, subframe and diff bushings, shifter bushing and trans insert and I really don't mind them. It makes the car sound raw and visceral. So how would a carbon driveshaft worsen the vibrations? Any insight on this? I wonder if anyone's done it in the same order
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09-25-2019, 11:52 AM | #28 |
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What you said there is probably very true. As the motor and trans have natural vibrations, having mounts on them sends it to the rest of the chassis and parts. In this case, your driveshaft would certainly gain some substantial vibration, and not due to an imbalance (which makes more sense, not sure why I didn't think of that before).
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