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    Parts Source List

    Would it be helpful to have that list in an Access database form so it could be sorted and viewed by vendor or part or size, etc? I did those a long time ago, and new information could be entered by members through an Access form and queried the same way. Designing the DB isn't simple, but it...
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    Electronics question

    It sounds as though you are trying to measure frequency with a voltage meter. Multimeters are typically analog devices and your pulses are digital. For that you need a digital pulse counter that would count the pulses produced by one revolution of your wheel. Pulse counting can usually be...
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    life span of aeroquip fuel hose?

    Hot Rod magazine had an extensive tech article on the subject of fuel lines here Performance Fuel Hoses - Hot Rod Magazine.
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    Need help identifying this universal joint

    John, I know the inner arms of two drive shaft universal joints should be coplanar, and I can visualize why that's necessary, but I can't for the life of me visualize how the motion of a tripod (or is that "tripload"?) on one end of a shaft could compensate for the variations in rotational speed...
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    Need help identifying this universal joint

    John- Thank you--now I'll know to call it when it falls on my hand next time! Damn thing weighs a ton, and the integral solid driveshaft is a good 1-1/2" thick. I'm not surprised RR used one like it after watching the Top Gear episode with the RR (I think the term "canal boat" was used at some...
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    Tire compounds and safe suspension loads

    Dan Gurney is quoted as saying, "Did I think the Lotus way of doing things was good? No. We had several structural failures in those cars [Indianapolis Lotus 34 and 38]. But at the time, I felt it was the price you paid for getting something significantly better." Racing drivers, of which I...
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    Need help identifying this universal joint

    I can't find any information for this sort of U-joint. It acts as a U-joint between the transaxle and the driveshaft and allows the driveshaft to move in and out horizontally. I think most of the contemporary cars I've seen either used the rubber donut along with the Spicer type U joint or U...
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    Tire compounds and safe suspension loads

    Mic- The forces on the rear upright during cornering combine with those from braking or accelerating. Braking seems to be three time greater than acceleration, but it's absorbed by all four corners, so it's actually less per tire. I think figuring the loads comes down to the fact that once the...
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    Tire compounds and safe suspension loads

    Jack- Thank you for the link- I've downloaded the calculator and started plugging in some preliminary numbers--the explanations included are first-rate. The book you mentioned, Racing and Sports Car Chassis Design is an expensive one, but I located one (used) through ABE Books for $50 and it's...
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    Broken Roller Lifter

    Jac- You said: "If your contemplating a flat tappet replacement the lifter oiling mod or some lifters with face oiling provision are a must." Could you explain that mod. you're referring to, and is it just needed when installing flat tappet cams in post 85'-86' 302 blocks? I don't understand...
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    Real GT40 Bellhousing

    There's a lot of information on this thread. http://www.gt40s.com/forum/gt40-tech-powertrain-transaxles/34176-help-iding-bellhousing.html
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    Tire compounds and safe suspension loads

    I'm with you now, Mick. Your tire rating of 1.0 would be its static coefficient of friction-- you multiply that by the weight on the tire and you get the break-away force. Tire makers evidently don’t like to talk about friction numbers since there so many variables affecting it and no agreed...
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    Tire compounds and safe suspension loads

    Mick and Jack- Since the coefficient of friction is unit-less, when you give your coefficients of friction as 1-g, 1.1 g, etc. are you factoring in another term? I may be missing something, . I've been using the formula for the resistive force of friction as the car's weight due to gravity +...
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    Tire compounds and safe suspension loads

    Jim-I'm still learning suspension statics and dynamics, and in this case, since I'm not a trained driver, it's better to concentrate on the engineering instead of just doubling a part's strength and giving it a try, no disrespect intended. It's one thing to risk my own ass (such as it is) on a...
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    oscilloscope suggestions?

    I'm not trying to tell you what bandwidth, or sampling rate, analog/digital/usb, storage type, scope maker or seller to pick. I don't know if this is a one-time buy for a one-time use or if later on you want to delve into the deeper workings of the digital automotive controls. Just don't be...
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    oscilloscope suggestions?

    A scope bandwidth is usually thought of as how high a frequency you can measure before your reading drops 3 db (about 30%). And that works, sort of, if you're talking about measuring waveforms that are sinusoidal. But bandwidth is also the limiting factor in measuring signal rise time, which...
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    Tire compounds and safe suspension loads

    To be sure I stay within safe limits I’m trying to figure how much my rear suspension loads would be increased from 1969 figures if I make some changes in tires and brakes. I’m sure improved compounds have increased the lateral G forces imposed in cornering and for straight line acceleration...
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    Name That Plane

    Jim- Do you know if their J2M3 will be flying? One of my favorites, although one shot up my dad's B-29 in July '45! John
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    F 5000, well sort of

    John- What type of steel are you using for the frame and suspension? And a very nice job of welding-MIG?
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    R.I.P Mrs. Thatcher

    Such a lady. With Golda, Winston, Moshe, Ronald-- not always revered in their time, but what a mark they made in history.
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