I plan on installing my Roush tvs1900 this weekend and have Blackbear Autocal with tune file ready to go. Should I download the tune prior to the supercharger install or after?

 

I would do it before myself, then once you are done with the install its ready to go.

 

Not really sure why it would matter. Just as long as you do it before you start the truck

 

my thoughts exactly

 

I agree..

 

The stock tune should work if you are using the stock injectors, just don't get into boost

 

??? Yea go drive the truck around on a stock tune even though you have the correct tune for it in your hands. It will be a great time.

 

Exactly, not sure why he even asked this.

 

I would install it before. If you have a problem it could be corrected during your install saving you down time. If you find a problem after the install, you will have to wait that much longer to find it.

With that said, there should not be any problems at all. I would actually be very surprised if there was a problem. But that would be my only reasoning to suggest before.

 

I have found that PD blowers require some fine tuning at idle so I doubt that he would be able to get the truck to idle with the stock tune.