i found a good deal a supercharged Z (vortech) and he says it's running around 10 or so on the boost. can this be done realiably without any engine modification?

 

I used to run the same psi before my motor build with no issues. It's all about the tune.

 

word, it's got an ecu flash i believe. also has the intercooler (will probably help alot here in FL).

 

^+1 on the tune for sure. I run 8lbs on twins on stock block without any issues.

 

10 psi on TN kit no problems here.Like said above its all in the tune.

 

10psi on Vortech sc when setup and tuned correctly is very safe.

 

It depends on what s/c and what internals its running ( i.e. stillen has different pulleys, but vortech has different pulley's and a few different units, S,T and Si Trim ) Ibs. of boost is determined by that and also by what breathing mods you have. With a freer flowing exhaust on a s/c it will lower the Ibs. but up the HP ?!?! Any more details will help!!!

 

I ran 13psi for a while on 110 race fuel and from experince nothing over 9lb is what you can call safe on a stock block