first meeting for LS 914, Racing at the MG Classic meeting, Manfeild Park |
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first meeting for LS 914, Racing at the MG Classic meeting, Manfeild Park |
returf |
Nov 16 2016, 11:58 AM
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#1
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Member Group: Members Posts: 67 Joined: 15-August 12 From: New Zealand Member No.: 14,806 Region Association: Australia and New Zealand |
While most of you guys are nearer the end of your racing season, we are just beginning down here in New Zealand. I finally managed to get my car to it's first meeting last weekend. A classic meeting that is in it's 31st year of running and right at my local track. Practice went well but i noticed that I still had the wheel shake up front under brakes. Race 1 was going well with a demon start but unfortunately a lower arm on the left front broke and that put me out for the rest of the day. Day two, and another good start and went from grid 18 to 9th before the first corner, gee it's got great acceleration!!! Race three and off to a flyer again but three corners from the chequered flag and an axle broke. But all'n'all a great start to the 914's racing. Here's a video of race three. check out the shaking. Once i get that sorted i'm sure i'll be able to brake a lot later.
https://www.youtube.com/watch?v=C4OPnfSt_Lw |
returf |
Nov 20 2016, 03:51 AM
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#2
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Member Group: Members Posts: 67 Joined: 15-August 12 From: New Zealand Member No.: 14,806 Region Association: Australia and New Zealand |
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Cracker |
Nov 20 2016, 06:44 AM
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#3
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Advanced Member Group: Members Posts: 2,148 Joined: 2-February 10 From: Atlanta (area) Member No.: 11,316 Region Association: South East States |
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stownsen914 |
Nov 20 2016, 09:50 AM
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#4
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Senior Member Group: Members Posts: 913 Joined: 3-October 06 From: Ossining, NY Member No.: 6,985 Region Association: None |
I would think that if the steering coupler were the cause of that violent shaking, that the car would be darting all over the road, and you'd feel strong shaking in the steering wheel. Even if it's not the cause of the shaking, you may still need a new coupler if you're seeing movement ...
If the shaking happens primarily under braking, I'd look at your rotors. |
Cracker |
Nov 20 2016, 10:26 AM
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#5
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Advanced Member Group: Members Posts: 2,148 Joined: 2-February 10 From: Atlanta (area) Member No.: 11,316 Region Association: South East States |
Trust me on this...I had thought I had a mechanical failure earlier this year due to the violence of the vibration on my car. We looked at everything and missed the most basic culprit. I had thrown wheel weights and was out 8 ounces. Mount the outboard weights on the lip and tape. You might be very surprised..I believe I've mentioned this before.
Tony If the shaking happens primarily under braking, I'd look at your rotors. |
returf |
Nov 20 2016, 12:56 PM
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#6
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Member Group: Members Posts: 67 Joined: 15-August 12 From: New Zealand Member No.: 14,806 Region Association: Australia and New Zealand |
Trust me on this...I had thought I had a mechanical failure earlier this year due to the violence of the vibration on my car. We looked at everything and missed the most basic culprit. I had thrown wheel weights and was out 8 ounces. Mount the outboard weights on the lip and tape. You might be very surprised..I believe I've mentioned this before. Tony If the shaking happens primarily under braking, I'd look at your rotors. Thanks Tony, I will get them re-balanced before next event but did you experience your shaking only under brakes ? It's almost like when the shaking starts the play in the coupler won't control the wheels until i remove my foot off the brake pedal.I'll also replace the coupler with an alluminium coupler and get the rotors running with less run-out. I'll keep you all posted. |
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