58x to 24x crankshaft signal converter?

Projects General Guidance
1

Hello all,

Has anyone attempted this? A company called Lingenfelter produces a box to convert the signal, i was hoping to do it myself but their are few, if any, resources available. Anyone out there that could help me out?

I have a GM V6 engine with a 58x reluctor and a ECU that is wanting a 24x Signal

Thanks in advance,
Chris

2

based on what you have told us the answer seems to be

output = input  / 58 * 24;

But maybe you have not told us the whole story.

...R

3

58x = 58 pulses per revolution
24x = 24 pulses per revolution

Would this be right?

360 ÷ 58 = 6.2
360 ÷ 24= 15
6.2 ÷ 15 = 0.413

Input = output / 1 * 0.413

4

Robin2:
based on what you have told us the answer seems to be

output = input  / 58 * 24;

But maybe you have not told us the whole story.

...R

No, of course we haven't been told the whole story.

The link to the existing product mentioned by the OP is here, and here is the installation manual .

I asked myself the question: Why do they use 58 teeth?

Answer - the teeth are spaced at 6° intervals, (as though there would be 60), but two are missing (numbers 59 and 60) to indicate when TDC of #1 cylinder occurs.

This means that as well as producing 24 pulses per revolution, they also need to be synchronised with the first tooth after the missing two teeth.

5

Robin2:
But maybe you have not told us the whole story.

The camshaft sensor wasn't mentioned,

6

JohnLincoln:
Answer - the teeth are spaced at 6° intervals, (as though there would be 60), but two are missing (numbers 59 and 60) to indicate when TDC of #1 cylinder occurs.

It's good of you to do the research that IMHO the OP should be doing.

And based on what you say it should be a ratio of 60 to 24 or 5 to 2.

...R