i called about this you said this earlier and the guy at vortech didnt know about it.... what exactly do you do with that just turn it out? and ill build boost sooner?

 

some of the folks answering the phones at vortech are clueless and/or unhelpful.

there is a set screw with a jam nut on top of the bell on the bypass valve. basically, adjusting this screw will alter the amount of vacuum that is needed to close the bypass valve (ie start building boost). the mondo race bypass valve they include in the kit usually comes with 9-11 threads showing, but most guys adjust it down to 6-7 threads showing.

the more threads that are exposed, the closer to zero vacuum you have to be before the valve closes. the fewer threads that are exposed, the further from zero vacuum you have to be before the valve closes. for reference, at idle you'll see 17-20 inches of vacuum, normal highway cruising you'll see low teens, and if you punch it, you'll see low single digit inches of vacuum.

soooooooo, you'll see boost sooner if you punch it with fewer threads showing than you would if you had more threads showing.

 

haven't heard of anyone having a BPV leak unless they installed it wrong (which is almost impossible). they do squeal like a **** though if you mess around with the pressure plate / spring. as long as your BPV works correctly there's no pressing need to change it.

 

cool i give it a shot thanks!!!

 

just get the 3.12 pulley and consider saving up and going forged, I was never really impressed by my vortech until i hit the 438 whp mark when it was about 40 degrees outside.

 

If your not happy with it I will take it off your hands.. Lol

 

Even a 2.87 pully will feel 'gutless' down low, below 4krpm or so. I drove a 450whp+ T-trim with 2.87 and it literally felt stock, in fact, worse than stock, until you got into the upper rpms. Glad I went TT...530BB's on a stock block is 'push gas and go' literally from any RPM

 

thats not the case with mine, it feels pretty fast.

 

Didn't mean to imply it wasn't fast. It just takes some time to get used to keeping it in higher RPMs to be 'fast'. T-trim is no slouch... just can't be drivin the same as a TT.