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Miner
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Ride height setting
Trying to set my ride height for rear wheels on my 1976 Porsche 911S, according to Will Fench's Calculations. I set the angle on the spring plate at 45 degrees per the calculation but when I set the car down after everything was put back together, the fender was stilll about six inches above the tires! I have the 23mm torsion bars with new rubber bushiings! Anyone has any ideas what I might have done wrong? This job is eating my lunch! Any recommendations or advice will be very welcomed. I have already jacked the car back up again and leveled it and am ready to take the spring plate off again, it is still set at 45degrees.
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03-25-2014, 06:53 AM
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Registered
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did you take it for a spin so it settles?!
it may take some time too, for it to come down. at least it was so with my SC, wenn I changed the stance front and back.
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Regards, Flo / 79 SC streetrod - Frankfurt, Germany Instagram: @elvnmisfit |
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03-25-2014, 06:55 AM
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Miner
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No I have not, I have just installed my rebuit engine and tranny and is not ready for a spin yet. Maybe I need to get it drive-worthy before I reset the angel and see how much it will come down. But six inches seems pretty high, but than again, maybe I need to let it settle out like you suggest and see how much more it will come down. Thanks Flojo!
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03-25-2014, 07:15 AM
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At 45 degrees I am not surprised. Though I have an '87, mine is 29 degrees (just set it). I have adjustable spring plates set slightly higher than mid point, however. Fender height is 24 3/4".
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03-25-2014, 07:35 AM
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Miner
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Thanks Lyle O, I am still trying to feel my way through all this. The original Shop Manual shows the angle at 41 for my model car. The spring plates on mine are not adustable so I will try the maual setting first and go from as my starting point! Thanks for the feedback, gives me different things to look at, besides I am retired and have plenty of time one my hands!
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03-25-2014, 11:23 AM
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Banned
Join Date: May 2005
Location: Earth
Posts: 31,744
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Don't worry about angles. Just measure from the tip of the spring plate to the ground. If it is 9" and you want to lower the car 1", reassemble with the tip at 10".
It's really simple. The torsion bar has different spaced splines at each end. With a combination of rotating the torsion bar , as well as the spring plate, you can get pretty accurate results. Last edited by dipso; 03-25-2014 at 11:46 AM.. |
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03-25-2014, 11:41 AM
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Banned
Join Date: May 2005
Location: Earth
Posts: 31,744
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On yours Miner, measure the tip of the spring plate to the ground. I would guess it is 2". Move the plate until the tip is 8" off the ground. That will lower your car 6".
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03-25-2014, 11:45 AM
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Porsche 911
