Accelerometer - Revision history

Stealthify at 03:10, June 28, 2012

2012-06-28T03:10:44Z

Stealthify at 03:10, June 28, 2012

2012-06-28T03:10:18Z

Stealthify: Created page with "category:Dictionary category:Tuning == Overview == In simplest terms, an accelerometer is a device that accurately measures G-force over time. G-Force is an instanta..."

2012-06-28T03:09:52Z

Created page with "category:Dictionary category:Tuning == Overview == In simplest terms, an accelerometer is a device that accurately measures G-force over time. G-Force is an instanta..."

New page

[[category:Dictionary]]
[[category:Tuning]]

== Overview ==
In simplest terms, an accelerometer is a device that accurately measures G-force over time. G-Force is an instantaneous indication of acceleration and is multiplied by time to compute speed and again by time to compute distance. These units are completely self-contained and need plug only into a power source. Basic models report 0-60 elapsed time, 60-0 elapsed time, 1/4 elapsed time, 1/4 mile speed (terminal, if not trap), lateral G force and maximum G force. Newer models are more sophisticated with provisions for rollout, trap speed, and even dyno-like horsepower and torque charts. When compared to 1/4 mile time slips, accuracy is typically extremely good, though 1/4 mile speeds tend to read higher for basic models that report terminal speed (speed at the 1/4 mile mark) rather than trap speed (average speed over the last 60').

Accelerometers are most valuable to those without ready access to a drag strip or who desire a precision instrument that can measure performance consistently (e.g.- before/after modifications to determine impact). Popular options include [http://www.gtechpro.com G-Tech] and [http://www.maxqdata.com MaxQData].

== Performance ==
*Owner: Jim Matthews
*Car: 1994 Stealth TT
*Turbo: TD04-9B, AVC-R (1st gen) @ 1.00 kg/cm^2 (14.223 psi)
*Intake: K&N FIPK
*Fuel: stock
*Exhaust: stock
*Drivetrain: stock
*Suspension: stock ECS
*Brakes: stock calipers, cryoed rotors, Porterfield R4-S pads, SS lines
*Wheels: stock
*Tires: Michelin XGT-Z4 245/45ZR17
*Weight with driver: stock + 170 lbs
*Accelerometer: G-Tech Pro
*Calibration: ET accurate, terminal speed ~10 mph high

{| border=1 cellpadding=2 cellspacing=0 style="color: black; background: white;"
! style="color: white; background: darkgreen;"|0-60 time
! style="color: white; background: darkgreen;"|60-0 dist
! style="color: white; background: darkgreen;"|1/4 time
! style="color: white; background: darkgreen;"|1/4 speed
! style="color: white; background: darkgreen;"|lateral G
! style="color: white; background: darkgreen;"|notes
|-
|4.79
|
|13.16
|113.9 (~103.9)
|
|
|}

*Owner: Jim Matthews
*Car: 1994 Stealth TT
*Turbo: TD04L-13G, AVC-R (1st gen) @ 1.15 kg/cm^2 (16.36 psi)
*Intake: K&N FIPK, IPS SS Y-pipe
*Fuel: 450cc black tops, IPO/SX AFPR @ 43 psi, hotwired Supra pump, SAFC (5-knob)
*Exhaust: Zorstec custom SS catback, EK2MFG dual-flex downpipe, enhanced precats
*Drivetrain: stock
*Suspension: stock ECS
*Brakes: StopTech ST-40 calipers, cryoed 332x32 / 322x28 rotors, Axxis Ultimate pads, SS lines, Wilwood prop valves
*Wheels: Enkei RPM-02
*Tires: Yokohama AVS ES100 245/45ZR17
*Weight with driver: stock + 170 lbs
*Accelerometer: G-Tech Pro
*Calibration: ET accurate, terminal speed ~10 mph high

{| border=1 cellpadding=2 cellspacing=0 style="color: black; background: white;"
! style="color: white; background: darkgreen;"|0-60 time
! style="color: white; background: darkgreen;"|60-0 dist
! style="color: white; background: darkgreen;"|1/4 time
! style="color: white; background: darkgreen;"|1/4 speed
! style="color: white; background: darkgreen;"|lateral G
! style="color: white; background: darkgreen;"|notes
|-
|4.25
|
|12.41
|121.3 (~111.3)
|
| unlevel road - slight descent
|-
|
|
|12.29
|122.8 (~112.8)
|
|
|-
|
|
|12.16
|123.6 (~113.6)
|
|
|-
|
|
|11.91
|126.7 (~116.7)
|
|boost unstable in log - can't guarantee limit
|}

--Started by [[User:Bjmsam|bjmsam]] 01:00, 30 April 2008 (MDT)

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+|
 |}
 *Owner: Jim Matthews
@@ Line 88: / Line 89: @@
 |boost unstable in log - can't guarantee limit
 |}
 --Started by [[User:Bjmsam|bjmsam]] 01:00, 30 April 2008 (MDT)

@@ Line 1: / Line 1: @@
 [[category:Dictionary]]
 [[category:Tuning]]
 In simplest terms, an accelerometer is a device that accurately measures G-force over time.  G-Force is an instantaneous indication of acceleration and is multiplied by time to compute speed and again by time to compute distance.  These units are completely self-contained and need plug only into a power source.  Basic models report 0-60 elapsed time, 60-0 elapsed time, 1/4 elapsed time, 1/4 mile speed (terminal, if not trap), lateral G force and maximum G force.  Newer models are more sophisticated with provisions for rollout, trap speed, and even dyno-like horsepower and torque charts.  When compared to 1/4 mile time slips, accuracy is typically extremely good, though 1/4 mile speeds tend to read higher for basic models that report terminal speed (speed at the 1/4 mile mark) rather than trap speed (average speed over the last 60').
@@ Line 38: / Line 36: @@
+|
 |}
 *Owner: Jim Matthews