[jss06c6]

Originally Posted by spork2367

Adding a crank sensor to an engine isn't a big deal. It's more difficult on the lt1/4 due to the opti-spark and front cover design.

That being said, I paid 1700 for the DIYautotune unit when they did a run of them. That's only 400-500 dollars more than the torqhead system.

Keep in mind, the DIYautotune system supports a plethora of options the torqhead w/Gen III ECU certainly doesn't. Those things include nitrous control, boost referencing, launch control/two step, reprogramming of power key to select alternate maps, etc. On top of that, the DIYautotune ECU plugs right into the stock harness.

If you're looking for cost savings, you could do all the work DIYautotune does on your time and save a load of money. That would be the cheapest/easiest option.

If you're looking for stock driveability then the stock ECU is the way to go. There are so few stock ECU failures that there will likely always be a supply of stock ECUs from the spares that were made and wrecked cars.

And just to add, while someone mentioned previously that torqhead had the ccm datastream stuff figured out for the L98, none of their current LT1/4 options support any of that. From their manual:

"Note this upgrade is for Off-Road use only. It is important to understand some of the systems on the LT engine will be incompatible. These systems are the EVAP, Air Pump, and EGR. If you install these components on a corvette (Y-Body) you will also loose functionality with the onboard CCM and some dash functions as well as other serial communication issues.
TORQHEAD is continuously improving their products to improve compatibility of systems, so please keep an eye out for updates!!"

Sorry, you're wrong. Handles the CCM datastream on the LT-1/4 just fine.

Sent from my SM-G950U using ZR-1 Net Registry mobile app