Ok guys, i have something i need to ask about or just discuss with who ever is interested. i've recently seen a set-up done that i don't see often and i'm wondering why not. Its a simple concept. the set-up was just like any other centri blower set-up, only just before the FMIC was a massize Tial waste-gate that regulated boost. The centri unit was equipped with a much smaller pully than normal. If i'm rememberring correctly, it was a F1 blower with a pully that normally would produce around 30psi at redline. Only the engine never seen anywhere neer 30psi, the wastegate would cut it off at 15psi. or what ever boost level he would set the waste gate too. The extra air was plummed back into the intake pipe for the S/C as to not screw up the draw through MAF set-up. why doesn't every one do this? with the extremely small pully and wastegate, the supercharger builds more boost in the lower rpm's than it would at the same psi on the larger pully. 15psi was reached on that F1 blower set-up somewhere around 3k rpm, if not just before. i'm still looking for other cars with the same idea, so i can learn if there are any drawbacks or anything to be overly worried about by doing this. so far, i don't see any. as long as the wastegate is properly sized to handle the extra airflow, there shouldn't be much other worries. if i'm thinking this out thoroughly enough, it seems that a set-up like this could actually be more benificial than a twin screw or even turbo. By sizing the pully to get the most effective spool time for your set-up you can use a much lower gearing much like on T/S and turbo aplications. only this way, you are in control of the powerband. too much low end? go with a larger pully. less spull, no tire spin. too laggy, smaller pully. boost is being regulated by the wastegate, not the pully. that would also make upping the boost work just like on a turbo. you could have multiple tunes. for example, 10 psi to cruise around with and 15psi for some fun. maybe even 20+ with race fuel. without ever changing the pully. (as long as the wastegate is up to par with the boost levels) i'm thinking about maybe doing this once i start building for power. i like to researcg any and everything i can to make cars faster, so since i've bought this car (and even before) all i do is research and read. everything from 5.4l swaps, to fully built blown set-ups. I really like this idea, and its something i can do within a timely manner because it isn't as far stretched as my normal "ideas" I think if I do the usual bolt-ons and supporting mods that our cars need before being boosted i can do a donsized version of that set-up. I still have a stock nPI, so maybe some steen heads or just the stockers and blower cams with a procharger d-1sc. It would be a 350-400rwhp car much like the many on this site, but i think i can do this and have a car that is much faster than normal for its power. extra small pully and a wastegate set for 9-10ish psi with just small enough pully to spool just fast enough not to kill the rear tires. maybe even stay on the 3.28:1 or 3.55:1 gears. gearing is a way to take advantage of a given powerband, but if you can control the powerband the gears themselves shouldn't pose that big of an issue. what do you guys think? do i need to be slapped?