Booston Posted October 1, 2019 Report Posted October 1, 2019 Can this be wired direct to an input ? Quote
cj Posted October 2, 2019 Report Posted October 2, 2019 on a thunder, probably. On any other model, it will exceed the max frequency input. its going to send 1x pulse per blade that goes past it. If you have 10x blades in your compressor, @100,000 rpm you are seeing 16666 blades per second. Even a thunder DI maxes out at 6500hz - so with a lower number of blades or a lower expected turbo rpm then yes. Quote
Adamw Posted October 2, 2019 Report Posted October 2, 2019 3 hours ago, cj said: on a thunder, probably. On any other model, it will exceed the max frequency input. its going to send 1x pulse per blade that goes past it. If you have 10x blades in your compressor, @100,000 rpm you are seeing 16666 blades per second. Even a thunder DI maxes out at 6500hz - so with a lower number of blades or a lower expected turbo rpm then yes. Just for your info - all the common ones I have seen (garret & BW) have a "divide by 8" circuit built into the connector. I believe this was because back in the day most compressor wheels had 8 blades so it would output one pulse per rev. So your example would actuallly give a frequency of ~2100Hz. So, fine for a Thunder but too high for the smaller ECU's. @Booston If you dont have a Thunder you will have to do something like this: Booston 1 Quote
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