o.k. i ordered this from jet

after i downloaded the trial I don't know how to make alot of the stuff work. it is alot different from dfi, etc. systems shoould i send this junk back and get something else or is it an o.k. product

why can't you tune on the fly with the stock computer?

 

I use DST to tune OBD2 cars and it works great. AFAIK it's the lowest cost OBD2 tuner out there yet is fully functional.

On a very technical level, you **could** tune on the fly with a stock LT1/LS1 PCM if somebody developed an EEPROM simulator (and figured out how GM scrambled the address/data pins on the EEPROM), you disassembled your PCM, desoldered the EEPROM, replaced it with a socket, attached the EEPROM simulator via the socket. You'd need two of them for LT1 because there are two halves to the LT1 PCM. Then somebody would need to write the software to allow real time tuning. It's a lot of technically complex work that most people probably wouldn't bother with, which is the likely reason nobody has done it yet.

The older ECMs allow for real-time tuning because they used a socketed PROM chip which is much easier to emulate. With a ROMULATOR and the right software you can real-time tune stock GM ECMs of the "pre-FLASH" era.

Not being able to tune in real-time makes the process of tuning a bit more complicated, but not impossible. You need a good data logging software package. MXSCAN (www.monodax.com) is great because it works with the DST's OBD2 interface cable, and only costs $69. Thankfully, PCM flashing is fairly quick on the OBD2 PCMs so you can run your car, datalog, and correct your tune fairly quickly.

 

I use the tunercats version. Works very well.
If anyone is interested I sell the jet DST software for $377.00.

 

Have you checked out Moates RTT?