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Thread: Ride height - degrees vs overall amount of movement

  1. #1

    Ride height - degrees vs overall amount of movement

    Does anyone of an idea of how much 1 degree of adjustment will change the resulting ride height?
    It seems like I saw this figure before, but I cant find the thread.
    Thanks in advance
    Renn-Spot - Cars & parts For Sale - http://renn-spot.blogspot.com/
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    1974 911"S" - Silver
    1973 911"T" - Bahia Red - Now Sold
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  2. #2
    Goldmember ttweed's Avatar
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    Quote Originally Posted by Cornpanzer
    Does anyone of an idea of how much 1 degree of adjustment will change the resulting ride height?
    I assume the 1 degree you speak of is on the rear spring plate? The only mention of this springplate angle in relation to ride height that I remember is in BA's book, where he mentions that adjusting the older 44/40 tooth torsion bars by one inside tooth up and one swingplate tooth down produces a 50 minute change (close to 1 degree, but not quite) and a resulting ride height change of approx. 6.5 mm.

    But maybe I am misunderstanding your question entirely?
    HTH,
    TT
    Tom Tweed
    Early S Registry #257
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  3. #3
    That is very helpful Tom - just what i needed!
    Dave
    Renn-Spot - Cars & parts For Sale - http://renn-spot.blogspot.com/
    1970 911"S" - Black (originally silver)
    1974 911"S" - Silver
    1973 911"T" - Bahia Red - Now Sold
    10 sec 67 VW
    Early "S" Registry #439

  4. #4
    Dave, I asked the same question last month. Got a nice program link. Do a search and you will find a good link to some guys that did their homework.

  5. #5
    Goldmember ttweed's Avatar
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    Quote Originally Posted by Rick Cabell
    Dave, I asked the same question last month. Got a nice program link. Do a search and you will find a good link to some guys that did their homework.
    Rick-
    Do you mean Thom Fitzpatrick's "Rennlight" site? He's the Sacramento area Pelicanite that goes by "widebody"somethingorother. There is a spring plate angle calculator there at http://www.rennlight.com/cgi-bin/spring.cgi. For that, you put in the weight of the car (and F/R distribution), the size of the rear bars, the desired ride height, and it will calculate the angle the plate should have at "full dangle" when you install it.

    There is also a useful corner balance calculator on his site too, at http://www.rennlight.com/cgi-bin/balance.cgi as well as some good how-to articles and the weight database. Both the calculator tools are linked from the Registry's Tech Info page.

    TT
    Tom Tweed
    Early S Registry #257
    R Gruppe #232
    Rennlist Founding Member #990416-1164
    PCA National DE Instructor
    Read my surf novel!

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