Recent content by BJM

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    Rear control arm bushings

    I cannot believe I am replying to this old thread its been 5 years since I posted here. Despite what you think, you will not want replacement stock bushings. I had some legitimate 1LE bushings from the dealer a few years ago and also some Moog stock replacments. They are identical. I would...
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    What moog springs lower the car 1" tried and true?

    The problem with cutting the stock springs is they are not stiff enough. When you cut off one whole coil you drop the car but the increase in stiffness is not appropriately enough to compensate for the loss in suspension travel. That is a stock spring on the left at a Moog 5660 on the...
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    Have you ever SEEN a sound wave, check it out

    Space craft design actually, several 1000's hours optimizing S/C structures for stiffness and mass. We optimize much further than car makers since engineering hours are a good trade off against launching extra mass. One thing to add about car design is damping design. Shock absorbers have...
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    Have you ever SEEN a sound wave, check it out

    If you are already in engineering you should have an opportunity to take a course in vibrations. I suggest a course in acoustics since its basically fluid borne vibrations coupling into structures in interesting ways. All structures vibrate in specific ways. One of the most fundamental...
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    Have you ever SEEN a sound wave, check it out

    You are not looking at a sound wave, you are looking at various modal resonance shapes of that specific plate. It is simply mounted on a large voice coil shaker (like a speaker coild but bigger). The specific mounting (how many mounting points and degree of fixity at each point) determines the...
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    Sharpening drill bits

    Until you are used to doing it I suggest the following. Note the angles that the two cutting edges make at the tip. While carefully rolling the bit in your fingers, sharpen like a pencil without changing the angles. You will know have a bit that will drill true but not very well. Right...
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    Air compressor Pressure

    This is the real point, you are supposed to have 90psi at the tool when running. Raising the pressure at the compressor is fine since its only the running pressure at the tool that matters. I use mine at 125 psi but the tool is at the end of 50 ft of line
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    The bushing survey...

    Most people treat rubber bushings like a poor cousin. The big assumption is that whatever compromise you have to make with poly (binding, harshness, excessive roll stiffness, squeaking) is worth it because rubber is mushy and won't give you good handling. The truth is everyone is replacing...
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    My restoration page

    Thanks for the comments. At least 40 different people from this board have read through it. If it helps even 1 it was worth the time writing it.
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    My restoration page

    Before I owned my Buick I had a 1971 Lemans. I did quite an extensive restoration on it. A friend is embarking on a similar project so I wrote it up for him to look at. I thought it might be of interest in this forum. The restoration page is located here.
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    Scanmaster 2.1 newbie numbers

    I have a free burner someone gave me and I downloaded TunerPro. I can give you a very complete parameter file if you are interested. Pocket Programmer II and others provide a cheap way to buy a programmer. Chips are harder to find but I have a few I could sell.
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    Turbo Regals are drivers.

    You would be doing okay, but not great. Factor of 10 increase in 20 years is only 12% per year, inflation over that time might be 4-5% so you are the same as the 1970 original owner. Take away expenses and its worse. Don't get me wrong, you had a really cool car all that time and most car...
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    Turbo Regals are drivers.

    $750,000 is not such a big deal if you were the sucker who bought it new. Someone please correct me if I am wrong but a high end musclecar would have been 5000-6000 in 1970, right? Wait 35 years and if its worth is now $750,000, it is an average return of 15%. Pretty good for a long term...
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    Scanmaster 2.1 newbie numbers

    Not sure if you are still using that old Extender or not, but if you are you will really want to upgrade. The old ones had the Power Enrichment threshold set very low for some reason so anytime you got on the throttle the car would guzzle gas for no reason. I altered mine to suit myself but...
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