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Quick Question - How Much Boost Can A Stock Engine Take

aquariuz6

By aquariuz6,
in Engines & Forced Induction

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aquariuz6 Proficient

aquariuz6

Posted
Posted

Hi guys,

Just wanted to ask on how much boost can a VG30 take on a stock engine?

I don't want to be putting on more boost when it won't get me anymore power plus I don't want to be pushing the engine too hard.

I am currently on 14psi at the moment. I get full at 3800 rpm.

I do know though that the turbo can handle more boost just don't know how safe will it be on the engine.

I know I should be testing this on a dyno but I am currently too busy at the moment.

Any comments would be great.

moonus Experienced

moonus

Posted
Posted

generally speaking, you should be able to push anywhere between 16-19 psi. speak to your tuner, and see how it runs with more boost on the dyno. Do you have all other supporting mods. ie, ECU, injectors, etc, etc

sloutch Mentor

sloutch

Posted
Posted

Like what R33GOD says, however i have heard of people pushing 20psi on their high-flow and the engine is still fine after a year. It really depends. Some might even fail with just 15-17psi.

Stock internals will probably be fine till about 300rwkw.

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