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Holley tach input ignition adapters are only used on applications using a CD box, such as an MSD 6AL, while not using timing control. They plug into the connector labeled "ignition" on the main harness. The loose yellow/black lead connects to the "Tach Out" terminal of the ignition box. Never connect this wire directly to the ignition coil.
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$23.66
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Compu-Fire tachometer adapters will restore accurate tach operation by supplying the correct triggering signal when using their ignition modules. They are easy to install.
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$45.60
$41.04
Dakota Digital offers CDI ignition tachometer adapters, which can be used for any aftermarket tachometer being installed in a 1985-87 Buick Grand National with a CDI-type ignition system. These adapters are quality-assembled, and act as a "buffer" for the connection between the tachometer and your CDI ignition.
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$28.50
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Holley EFI tachometer input ignition adapters are for applications using a CD Box, such as an MSD 6AL, while not using timing control. They're designed for use with Sniper 2 EFI systems and external ignition control boxes with tachometer signal output. Not for direct connection to coil.
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$28.01
$25.21
MSD tach drive adapters are designed to fit MSD distributors using the 3/16 in. tang drive cable. They are made of bronze, and feature a 0.104 inch square drive (Corvette style) drive cable end adapted to the 3/16 in. tang drive used on all tach drive MSD distributors.
( 13 )
$27.87
Manufacturer Rebate
AutoMeter engine gauge installation kits for GM LS engines feature specialized components to ease the introduction of an LS engine into your vehicle. These kits include a full-color guide that details the use of the included metric adapter fittings, short depth water temperature sensor, and tachometer resistor, as well as the installation procedures for other commonly monitored parameters. Each kit includes: * 12mm x 1.5 to 1/8 in. NPT adapter * 16mm x 1.5 to 1/8 in. NPT adapter * Low-profile electric temperature sender * 10K 1/2 watt resistor (tach function)
( 23 )
$47.99
CA offers tachometer filters for a variety of applications, including many Chevy Corvette models from the 1970s, '80s, and '90s. These devices remove leading or trailing pulse signal interference for tach RPM gauges, preventing aftermarket instruments from acting erratically. They're recommended for vehicles with poor quality engine RPM pulse signals, single coil ignition systems, and point-style coil ignition systems. Each replacement filter is manufactured from factory materials and specifications to ensure proper fitment and performance. They meet or exceed OEM quality.
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$44.99
Eliminate tach signal noise and surges caused by your ignition system with OER tachometer filters. These components are recommended for vehicles running a tachometer designed for points-style ignitions for a crisp and cleaner signal and install between the tachometer and the ignition trigger source. The tach filters are designed to trap, redirect, and dissipate the high-voltage spikes and surges that are emitted by any late model, high-energy ignition system. The filters also modify the sharp up and down spikes into a semi-square wave signal for steady readings and faster pointer response.
( 2 )
$47.99
On Sale
Holley EFI tachometer input conditioners help stabilize noisy tach inputs to your 7 in. standalone digital dash. If the rpm on the dash reads erratically, these conditioners will eliminate "jittery" signals when using points/tach pin B5 to provide rpm to the standalone digital dash.
( 2 )
$44.75
$24.61
Longacre stepper motor tachometer filters prevent erratic gauge operation by filtering out dirty electrical interference from selected high-power ignition systems. Installing a tach filter will clean up the noisy/dirty signal and therefore smooth out the reading on the gauge.
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$56.99
On Sale
In some instances when you install a DIS-4 Plus Ignition, the factory ECU may not be able to distinguish when the coil fires. This is the signal that is also responsible for firing the injectors (or the tachometer), which may cause a no-run situation. MSD DIS coil simulators replicate the original coil trigger signal, thus allowing the ECU to properly trigger both the tach and fuel injection with the MSD DIS Ignition installed. In most cases, the distributor-less (DIS) simulator plugs directly into the MSD's harness. Features: * Bullet-style connectors for easy plug-in to MSD DIS-4 Plus harness * Simulates factory ECU kick-back signal for factory fuel injection and tach signal * Compact housing is easy to mount * Epoxy filled for protection against heat and vibration
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$80.49
$44.27
Classic Instruments tachometer filters install between the tachometer and the ignition trigger source. They are designed to trap, redirect, and dissipate the high-voltage spikes and surges that are emitted by any late model, high-energy ignition system. The filters also modifiy the sharp up and down spikes into a semi-square wave signal for steady pointer readings and faster pointer response.
( 24 )
$34.89
Manufacturer Rebate
If your tachometer is functioning erratically, one cause may be a defective filter. AutoMeter tachometer filters will improve the unpredictable operation by removing interference and correcting weak or spiky pulse signals caused by points or noisy ignitions. Fix your tachometer's signal surges with replacement filters from AutoMeter.
( 8 )
$28.99
Manufacturer Rebate
These shock mounting adapters are direct replacements for the mounts which come on AutoMeter's 5 in. Monster tachometers. The aluminum mounting adapters can also be used to convert most 3 3/4 in. and 5 in. tachs and gauges to pedestal mount. The heavy-duty mounting strap and base offer excellent shock and vibration isolation properties in the harshest environments.
( 13 )
$22.99
Racepak interface 7-pin cables are available in multiple lengths to extend analog and interface module connections on Racepak V300SD, V500SD and G2X Pro data loggers. They are made of high-quality materials to provide long-lasting durability and performance. If you need to extend your analog or interface connections, Racepak interface extension cables can make it happen.
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$28.01
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