# Tag Info

8

NOTE: The following example assumes output in lb-ft & horsepower. Dynamometers can also measure torque output in Newton Meters or Kilowatts just as easily, or any other measure of torque and power, for that matter. First off, let's get everyone on the same sheet of music. When it comes to vehicles, there are two basic types of dynamometers: engine & ...

7

Generally, in the automotive world, there are two different types of dynamometer (or dyno for short) which might be used: chassis dyno; engine dyno. I'll discuss the general procedures for each type of dyno. Every dyno operator has their own procedure and will operate it how they see fit. You have to allow for this mainly because it's their dyno, they paid ...

6

Yes, 9 is the stem length in the graphic you have pictured.

6

Works as long as they are clean. What is the tolerance on the gap you are working with? Compare that to the error of putting two feeler gauges together - check with a micrometer or vernier preferably a good one.

4

PCD or Pitch Circle Diameter is typically given as a number multiplied by another number. The first number is the number of bolts, nuts or studs and these can be simply counted. The second number is the diameter of a circle which has a central point in the centre of the hub and whose outside line goes through the centre of each bolt hole. It is therefore ...

2

Wrap a tape measure around the tube. Do this enough times with different sizes, and you'll find a pattern. From that pattern, you can derive a formula. Or try this: based on the rim size and profile of the wheel this tube goes into, you can determine the height of the tube. From that, using Pi, you can derive the circumference.

2

As far as I'm aware, it cannot be done. Vacuum is a direct relation to valve lift and timing, does not relate to compression ratio. The vacuum is drawn during the intake stroke. In a 4-stroke (cycle) engine, the intake and compression events are completely separate.

2

I believe you'll find the needed specs here: Service Specifications Clearance (cold) Intake 0.15-0.19 mm (0.006-0.007 in.) Exhaust 0.26-0.30 mm (0.010-0.012 in.)

2

A very accurate way to mic your rod and main journals is to use a telescoping gauge set. They looks something like this set: The ends of the "T" are spring loaded and the end at the base of the "T" twists to lock the head in place to set the distance. They work something like this for the main bearings: Install all of your main bearings in the appropriate ...

1

Probably, but not for certain. Manufacturers build cars in many countries, and sometimes or often source parts and assemblies from other countries. Without knowing what specific parts and assemblies and other products join to feed a particular assembly line, the question cannot be answered. But because Honda and Toyotas are generally designed in Japan, it'...

1

I don't believe there is any statistic containing information about widths of cars, but as Solar Mike noticed, you can compile such statistic by the information provided by car manufacturers for individual cars. For example, I used to have a 2011 Toyota Yaris. Its width is 1695 mm according to Wikipedia. Now I have a 2016 Toyota RAV4 hybrid that is 1845 mm ...

1

They should be flat, the grooves and waves taken out. The thickness is a function of how worn each one was going in so they do not need to be the same, the brake system adjusts to those differences by design. That said, I am not sure exactly which type of damage you are talking about related to the "waves", but if you have a warp in the rotor I would not ...

1

As a regular user of Blackstone Labs, I believe they use mainly Spectroscopy -- i'm not sure how else they could provide the results they do. I know for a fact that a place in Denver uses infrared spectroscopy as one of their employees has commented about it on forums. Not sure it's feasible to do this on your own unless you have access to or want to spend ...

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