Hey i see you work for procharger. I wish i had a procharger but could only afford a used vortech. I was wondering if you could answer my question. All my mods are in sig. I'm running 9lbs. boost and i'm adding a water to air intercooler. I'm trying to figure out what size tubing to use for max performance. I want to loose least amount of boost possible? Also by adding the cooler will it take longer to build and feel the boost? Any help is much apprieciated.
Thanks Justin

 

You can step tubing up from the blower, but you shouldn't neck it back down. Just plumb the system in 3", as that's probably the outlet size of the blower. Adding the plumbing to the I/C isn't going to affect your response.

PS: you can always PM me.

 

Thanks alot Mark I finally have the last bit of info I needed to get started. I thought about a pm but i figured this way anyone in the same boat can learn. Thanks again and i'm sure you'll here from me again.