L67 Dwell time control

[CTX-SLPR]

Howdy,

Does anyone know if the L67 PCM varies the dwell time on the DIS coils and if so what range of times does it use?

Thanks,

[bilemke]

Hmm. Yeah.. It has a Static Dwell vs Reference Period and a Dwell Time Correction vs Voltage..

[CTX-SLPR]

So it is an editable parameter? For instance I could change it from 3ms to 5ms or add an offset in another table to alter the final value sent to the ICM?

Thanks,

[bilemke]

Editable.... well, yes.. There are tables for it, I saw it in another tuner... Just not in HP Tuner right now..

[CTX-SLPR]

Grrrr... I'm working on making LS2 coils run off of a stock ICM (still waste spark but forward polarity and bigger spark) and the biggest thing right now in the paper design is that from the documention I can find the DIS Type II coils used on the L67 have a ~3ms dwell time for maximum charge while the LS2 coils have a ~5ms dwell. I did some fancy math with putting in a capacitor and resistor then a voltage regulator but then I'd have to take the main timing table and build in an rpm based offset for the extra 2ms so that the timing would be accurate. If I could edit the table so that the ECM already had the increased dwell time onboard it would greatly simplify it. How close is HP Tuners to adding this table or am I going to have to find someone to change it for me in DHP then do the rest of the programming myself?

Thanks,

[bilemke]

Grrrr... I'm working on making LS2 coils run off of a stock ICM (still waste spark but forward polarity and bigger spark) and the biggest thing right now in the paper design is that from the documention I can find the DIS Type II coils used on the L67 have a ~3ms dwell time for maximum charge while the LS2 coils have a ~5ms dwell. I did some fancy math with putting in a capacitor and resistor then a voltage regulator but then I'd have to take the main timing table and build in an rpm based offset for the extra 2ms so that the timing would be accurate. If I could edit the table so that the ECM already had the increased dwell time onboard it would greatly simplify it. How close is HP Tuners to adding this table or am I going to have to find someone to change it for me in DHP then do the rest of the programming myself?

Thanks,

Hmm. Yeah.. Cant say about HPT.. You might be able to request it.. You definately have a very good purpose for it from what I see.

DHP.. Yeah, they dotn have it mapped either.