Topic: What's a turbo speed sensor and why do I need one?

[kennysabarese]

From: http://www.turbobygarrett.com/turbobygarrett/products/Accessories_continue_speed_sensor.html

Get the most out of your turbocharger!

The Garrett® Turbocharger Speed Sensor Kit offers the ability to monitor the inner workings of your turbocharger to insure longer life and maximum performance at an affordable price! By constantly monitoring your turbocharger's shaft speed through either a data logger or the Garrett®-branded speed sensor gauge, you acquire a more complete picture of your turbocharger's performance.

Maximum Performance


Comparing boost levels and shaft speed on a compressor map, you can determine the ideal operating conditions to insure peak power over a wider operating range. All Garrett® Turbocharger Speed Sensor Kits are compatible with dataloggers to enhance engine tuning capability. In addition, the Garrett®-branded gauge's maximum speed recall function will retain the highest wheel speed for five minutes for easy mapping. The data gained from the Garrett® Turbocharger Speed Sensor Kit can be used to closely estimate the engine's flow behavior without a flow bench. Flow information is invaluable for determining if the turbocharger is reaching its maximum performance, for validating the turbo match, and for insuring that it is not overspeeding, allowing you to avoid potentially damaging operating conditions. This kit could even be used in conjunction with an aftermarket ECU to limit compressor speed. The Garrett® Turbocharger Speed Sensor Kit will help you be sure you've got the correct turbo for your needs!

[Uranium-238]

Sounds good, but how much does is cost and how much is it really needed? I know of plenty of examples of turboed cars making lost of power but I've never heard of a need for one of these before. If you're trying to squeeze every drop of power out of your setup I'm sure it's a huge help, but depending on the cost it may not be worth it depending on what else that money could buy.

[kennysabarese]

Google tells me between 350 and 450 for the complete kit with gauge.