Boost

[H-Dogg]

What is the stock boost on the 1JZ?

[BigTree]

If you step on it in mid second or third I peak out at 11.8 psi for a few seconds and even out at about 10.0 psi.

[rakkasan]

Sheesh....SEARCH for this info, it's been documented thousands of times already......

[annoyingrob]

10 PSI



:)

[H-Dogg]

If it's 10 PSI, would that mean 5 PSI is being pumped out of each turbo?

[conundrum07]

No.

[OneJoeZee]

If it's 10 PSI, would that mean 5 PSI is being pumped out of each turbo?

It doesn't work that way.

[JustAnotherVictim]

Do leprechauns conjure up the boost?

[Big Wang Bandit]

Yes,, I have 3 in shackles

[annoyingrob]

If it's 10 PSI, would that mean 5 PSI is being pumped out of each turbo?
They BOTH produce 10psi, but they only flow half the air at that one turbo would flow at that pressure.

[Junior]

pressure x volume = flow

flow = power

increasing pressure (boost) will increase flow and therefor power.

Volume is the trapped displacement of the engine, with the level of knowledge you've shown you're at now, don't even begin to consider fucking with that, I'm not meaning to be hard on you, but odds are high that it's beyond you.

[annoyingrob]

increasing pressure (boost) will increase flow and therefor power.
That's not entirely correct.

While there is an increase in flow within the engine due to the positive manifold pressure pushing a little more air into the cylinders, the majority of the power increase comes from the DENSER air charge. It's all about the number of oxygen molecules per volume of air. :)

If you pushed your turbocharger way beyond its efficiency, even if the boost was higher, the air could be so hot that the density is the same, so increasing boost will not necessarily increase power :)


Damn turbos are so complicated.

[masterchief819]

10.1526416 pounds per square inch