i checked my piping today came off at the throttle body, i thought they had t bolt clamps all through out but gues not so ill be upgrading.

 

can you run 25-30psi on a stock SS/TC? without upgrading internals

 

For sure...the only part of our internals that isn't forged are the pistons (crank and rods are forged) but they are fairly low compression for today's standards (9.2:1) and I remember reading a post on GMTunerblog a while back that said they had pushed the LNF to over 500HP on the stock internals. It's supposed to be a very sturdy block.

 

Yes, the internal engine components are adequate. The stock turbo will not maintain 25+ psi without modification to the wastegate system. Even then, I wouldn't recommend it. With an upgraded turbo, 25psi is not a big deal concerning engine internals. The hurdles being worked on are in the fuel system and cylinder heads.

 

Yo! Just hit me up!! I'm working 3-10 tonight, so bring everything that you got down over to PS & we will check it out... But your CP, we can make sure that everything is tight like a tiger & that should take care of your worry of it popping off.

 

so on a stock turbo 22-23 should work plenty then im guessing. i was only going to goto 20psi just to be a on the safer side but if the internals are biult that good then f@#$ it lol.

 

Compared to a naturally aspirated engine that may be relatively low, but for a high output, factory turbocharged application it's a pretty high compression ratio. Considering the specific power the engine is producing, if we didn't have direct injection helping to keep detonation at bay GM probably would have had to drop compression slightly. The Ecotec-based 2.0L turbo four used in the Saab 9-3 uses conventional port fuel injection and runs a 9.5:1 compression ratio, but they also have less power (210 hp/221 ft-lbs) and their Trionic 8 engine management plays a big part in allowing it to run that high of a CR (it uses in-cylinder ionization technology by running current through the spark plugs to read knock threshold much better than a car with a conventional piezoelectric knock sensor like the LNF uses). In general factory boosted applications are usually in the 8:1 range.