Anytime you modify the engine you risk doing some damage and shorting the life. It sounds funny but automakers do have engineers whose job is to get the most out of something while still being reliable. Had they wanted to they could probably make 1,000 hp out of that engine but it would be spread all over the road after a mile or so.
Judging by the question you asked yesterday you most likely already did some damage. You really shouldn't start modifying things you don't understand.I have a 2005 Dodge SRT-4 with a boost controller what do i need in order to turn up the boost?
stock psi on a 05 srt 4 is 15lbs ! i dont have any problems !
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To have no problems?
Don't turn up the boost.
Seriously, think about what you're asking.
The engine is set to a stock level of psi. Which is the optimal value for your vehicle, based on all the other values such as fuel and ignition.
If you increase the PSI, then you are immediately increasing it past the safe value that was already determined for your vehicle.
You IMMEDIATELY start putting unnecessary wear and tear and stress on your engine.
Want a really simple analogy? Go get on a treadmill. Set it to however fast you can run.
Then turn it up past what you're capable of. See what happens, lol. Either you'll get really tired very quickly, or you'll hurt yourself. Same exact idea. (but in a car, getting tired quickly, translates to decreased engine life span; and getting hurt, means blowing a piston, cracking your block, etc)
What you need, is a fuel/air controller. And an EMS, if you want to be really smart about it. Then, take it to a dyno, and have them spend a few hours, and about 500$ of your dollars, tuning it to perfectly match the increase in boost.
If you want to increase it again, take it back to the dyno, and spend the $500+ again.
That's the only way to do it safely.
Edit: Like the other guy said, judging from your previous question.....you've already damaged your engine. Why on earth would you turn it up so high? Do you have the slightest bit of intelligence about cars, or do you just hear people talking about high boost, so you copy them?
vipassan worded this one really well,if you turn it up or alter it you will wind up having engine problems,the factory boost was set up for maximum performance and to make the engine last,if you alter it you may get more boost but you may also cause sever engine damage,id think it over before i did it,good luck.