Very cool, thanks. I got the LM-1 with the RPM attachment so I think I'll get 6 inputs. From what I've read so far I found that you can set it up to record based on certain input conditions like WOT triggered and AFR drops below 14.7 including some time prior to the event which I thought was pretty cool.

I want to have it automatically do some recording of the AFM along with RPMs, speed (if I can work it in) fuel pressure at the rail, oil pressure and/or temp and possibly some temp or air flow stuff if I can get my hands on some compatible sensors. My car isn't boosted or anything (yet), I'm just curious.

I think you put some knock sensors on your block when you were in there last didn't you? Have you tried logging anything from there? Would you need any kind of pulse stretcher or anything to read it do you think?

Could you use an Auxbox to read for knocks and if it detects them over a certain threshold, retard the timing (maybe jump the octane loop or something?)

 

I'm using a single S4 knock sensor with a KnockLite. The KnockLite has a 5V output which goes low if there's a knock. I'm using the KnockLite output for logging.

I made a simple 555 ciruit to connect the octane loop for a few seconds when there's any knocks - (thread). You can set the KnockLite sensitivity to the threshold of knock you want. Pretty basic, but it works well. I reused the air temp sensor wires for the knock sensor, but I'm going to buy a roll of 105C shield wire, so I can to wire it properly, and restore the air temp input for the EZF, and logging.

One cool thing about Innovate's software, they supply an ActiveX you can use in your own programs (even Access or Excel) to read from their devices, so you could write your own logging or autotuning software.

 

Very cool. I thought I'd read somewhere that you were going to use the octane loop retard if you could get a good signal. (at least I knew it wasn't my original idea)

I thought I saw the SDK somewhere on the Innovate site. Sounds cool.

Seriously, how do I get one of those cool EZ plug combos?

Can we call it a Tween'r?

 

Ken,

That's a cool plug. I'm getting some info from the diagnostic plug (RPM, MAF voltage and Knocks) on my
90. Dave A. made me an adapter plug to get those inputs. The other signals are AFR (wideband),
Boost (built in sensor), and Fuel Pressure from an external sensor. I got the SSI-4 to get the injector
duty cycle, and dwell, and move the MAF and Knocks here, so I could use the acceleratometer in the
LMA-3, but instead now I've been using the Sharktuner to get those. It's amazing what all this stuff can
allow you to do

 

Yes, I'm doing the same with the diagnostic plug on my '91 (RPM, boost and knock for now). But I think the early 32-valve cars do not have any diagnostic ports to pull from, so Ken's only solution was to pull directly from the engine harness.

Dan
'91 928GT S/C 475hp/460lb.ft

 

+1