you cant do that. thats what the BBV is for. I dont know when really, but the BBV closes at a certain RPM (maybe?) and lets boost go through, but you cant really get off idle boost.

 

Werd. Sounds like you just want a smaller pulley man. Get the SC spinning faster sooner, and you're good to go.

Slap a 3.2" on er, throw in some plugs a step colder, make sure you use 91+ octane, and you're laughin. Not a bad little boost for $100 worth of parts...

Edit: You could do a 3.1" too, or even smaller. But if you're gonna go that small, do yourself a favor and get a scan tool to check for knock, and try to get it on a dyno with an AF. I wouldn't go any smaller than a 3.1" and assume it's safe without those tools.

 

I disagree, if the blower is driven fast enough at idle it will produce boost!!! Forget about the by-pass valve, IT IS NOT NEEDED ON A SUPERCHARGER!!!!!!

On our SSs it is there for:
Economy - if its not boosting, no load, than it takes lees power to drive. Better fuel economy.
Durability - its harder to start an engine thats being boosted at idle, as the boost is there within say 200 rpm. Believe me, an engine thats pushing say 5 psi at 600, will be forcing air at 200. This is why we have high torque, high amp starters - for high compression high performance engines.
Our superchargers are tested and proven to 100000 miles according to the web site. This is due to several factors but one is that the supercharger is not under load most of the time. By-Pass.
Heat - if the blower is not boosting, its not making heat.
ETC.

Boost at idle is doable, if done properly. You only need to drive the blower fast enough to produce it. If you want boost at idle, overdrive the blower, done with a smaller pulley.
The M60 could probably be driven fast enough at 600 RPM to produce boost, however I dought it would stay together to engine redline. If it did, Im sure it wouldnt last long. The answer - a bigger blower, more CFM per rev.

It is done all the time, just go ask a top fuel mechanic, they overdrive blowers 35 to 40%. Boost is there at idle, thats why the blocks are O-ringed with .030 wire. Ive seen engines blow cylinders in less than a minute because the block was not ringed.

It is possible, done everyday. For us SS owners, the by-pass is there because of the reasons stated above, etc. We have performance cars that are expected to last for years and many miles. We wiil not always be able to run premium fuel, again the valve, no boost, no ping.

Sorry for the length, I hope anyone that can add to this will.

 

I don't know about you, but racing from a 40 roll starts me at about 4000 rpm in 2nd. For torque, that's pretty much the sweet spot on these cars. Racing from the roll is what these cars do best.

 

*Warning* Dead Thread Resurrected

 

Yea, I noticed after I posted. Long day, Steve not too bright.