So im gettin dyno tuned on tuesday, and i wanna switch to a blow thru setup. Right now i have a pull thru setup and its got a base tune for that. My main concern is that driveability is gonna tank when i switch to a blow thru setup, as im driving my car to get tuned and not gonna tow it. I know my fuel trims are gonna change and obviously the tune is gonna change, hence why im doing it the day before i get tuned.

Anyone have success in doing this prior to getting tuned?

 

Here's what I did...

Have a blow through set up fabbed up but use a block plate on the blow through MAF seat, so when you arrive for your tune just move your MAF to the blow through position and either block off the pull through MAF seat or just remove that intake. Know what I mean?

 

thats actually a pretty damn good idea. idk why i didnt think of that.

 

what ill do is switch it to blow thru and see what happens, worst case scenario ill try n fab up a block off plate.