[Blown353]

Hey Lance, how do you deal with signal discrimination/saturation at high RPM with the 58X wheel?

Several guys with lots of experience in both the LS1 and EFI industry have suggested I use a 24X wheel on my new twin turbo LS2 build. Their reasoning being as RPMs increase it gets more difficult to discern the individual tooth signals of the 58X wheel and you run the chance of misinterpreting the signal, leading to false injection/false timing events.

I believe the number I was told was things start to get "fuzzy" with the 58X wheel around 7200rpm, where the 24X wheel starts to get "fuzzy" around 9100-9200 rpm, the disadvantage here obviously being the lower tooth count of the 24X wheel limits the resolution of the system.

Both of the guys I talked to suggested I use the 24X wheel because of greater tooth "individuality" & a clearer signal at higher RPM where the engine is making the most HP, whereas the 58X wheel is giving lots more pulses at high RPM with a larger chance of the individual tooth pulses "running together" and false-triggering.

I'm normally not a name dropper, but one of the sources for this recommendation was John Meaney (Big Stuff 3)...

Waiting to hear your feedback. I haven't purchased a new ECU yet for my LS2 and am still researching the options. The BS3 and your Pantera system are still in the mix...