I think 15psi was all you could do with the stock fuel setup. Any that pushin ur tiny stock turbo to its limits. Your engine itself will be ok...I think anything over 15psi you will start to get a lil knock, which is NO GOOD!

 

if im not mistaken can you prevent knock with a front mount if your running 15psi due to the cooler air the engine is recieving?

 

Front mounts and the stock t-25 dont get a long to well....

 

i was wonderin the same thing i just bought a gst i have a stock turbo but a Walbro 255 fuel pump so i was wondering what i would be able to run my boost at without worryin about my internals, and its the stock motor.

 

i wouldnt go past 15psi on stock turbo....gotta remember thats its a baby turbo, its no 16g or anything else for that matter. your gonna end up f-ing up your t25 and have to get a new bigger turbo, so if you want more power, do your research (ie. SEARCH button on the top of the page) and get one that fits your needs...usually 16g's work for most people and their needs.

 

i read about kids running 20psi with the evo316g turbo..is this safe on the stock motor.....

 

It can handle it.. The stock block should be able to handle up to about 400 hp.. 20 psi on a 16g turbo your looking at 300's for hp.. So ya, it should handle it.. It all depends on how you drive it though.. The motor wont last as long however as it would if you were running 15-18 lbs but it should last 100,000 miles easy enough..