Longacre 50888 Air Density Gauge
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Please NOTE the following about this product:
- This product is discontinued.
Q & A
What's in the Box
Get precise carb jetting every race! This gauge from Longacre helps you set air/fuel ratios to compensate for changes in barometric pressure and air temperature. As air density changes with weather conditions, you should rejet your carb to keep to horsepower and sharp response.
Comes complete with case and jetting chart. 2-1/4" gauge face, 2-7/8" bezel O.D.
Cannot ship by air.
Item DetailsNote: This item is not to ship via an air shipping method such as 1-day, 2-day, or 2-day economy shipping.
A very well presented product.
- the meter can easily be "adjusted" if necessary.
- non-air delivery is tedious especially overseas.
No questions have been asked.
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Ever wonder what changing tire diameter or gear ratio will do to your engine RPMs? How about changing combustion chamber size, bore and stroke or even weight to power ratio?
This handy little slide rule will give you the answers. Everyone needs one!
- MPH, Power to Weight Ratios, and E.T.
- Tire Diameter to Speed and Gear Ratio
- Engine Displacement to Compression Ratio
- Horsepower Measured at Flywheel
- Horsepower Ratings are Calculated for RearWheel Horsepower
The Computech Race Air all-in-one weather station is completely portable and easy to use. It features automatic air sampling and an internal fan control to provide highly accurate results. Provides weather data and calculated values to assist in tuning. Uses six AA batteries.
- Barometric Pressure
- Standard Correction Factor
- Density Altitude
- Air Density Ratio
- Dry Barometer
- Dew Point
- Wet Bulb
- Vapor Pressure
- Water Vapor (grains)
- Pressure Altitude
910-64550 Instructions (PDF)
Spiral bound book with pages for set-up, lap times, tire temps, notes, etc. 62 pages. Record 28 different set-ups.
Aluminum clipboard with rubber feet holds stopwatches at an angle for easy viewing. Includes one pad of timing sheets, a pen, and one Robic SC-505 stopwatch.
Operation Instructions (PDF)
Keep your engine running at its peak horsepower with Longacre's digital air density gauge. Air density is a valuable tool to keep your jetting at its optimum. This digital gauge has an easy to read display and shows your baseline so you don't forget. This gauge will also flash a red LED light when you need to change jets, and will display current temperature and barometric pressure. A foam lined silver case is also included for easy storage.
- Accurate electronic air density measurement
- Auto shutoff
- Battery indicator on display
- Range: 70%-130%
- Gauge size: 4" x 1-3/4"
- Display size: 2-1/2" x 1"
- Includes case
475-50887 Instructions (PDF)