Vortec 4.3 to Vortec V8 - who was it ??

[v8famvan]

I'm sure you would get your moneys worth from having a Pro tune it, but I am reading about DIY programing there is just tons of material to know. You can download a demo copy of Jet's DST here http://www.jetchip.com/downloads/DST_Tuner_Setup.zip
It's pretty cool.

I actually have one of those tuner packages & am experimenting with it. There is ALOT of tunability in there...

[RickU]

I actually have one of those tuner packages & am experimenting with it. There is ALOT of tunability in there...

I see you also have swapped a V8. How does that work with the licensing? If you purchased it for your vin number does it think your running a V6? Did you use the vin # and computor of the donor vehicle? Did you use both vin's?

[v8famvan]

I am actually using it on my '98 Jimmy & someone elses '97 Safari. It registers your VIN to the product when you copy your vehicles program (download)

[RickU]

So you probably couldn't use it to turn a V6 computer into a V8 computer. So for a swap you would just register your VIN to a donor computer?

[v8famvan]

I believe the computers are the same, they are physically the same size, just different programming. If I was doing a swap like this, I would probably just try reprogramming the computer to a truck V8 VIN (with the GM reprogramming system that I have access to) & then tweak that program.
If that did not work, I would use a computer from a truck.

[RickU]

OK, Thanks.