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Originally Posted by bkathsalero
So I'm guessing I would only be able to run 6-8psi on a stock bottom end?
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think power not pressure, stock parts can only take certain amount of power before they bend or break. bigger turbo flows more at the same pressure level than a small turbo at the same pressure level.
Quote:
Originally Posted by bkathsalero
SO is a bov tuned to the pressure I'm guessing?
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Not exactly. The blow off valve just needs to be closed when you're boosting and open when you let off. Some have stiffer springs in them so they don't leak under high pressures, but those stiffer springs can prevent the air from escaping at lower boost. I had to take one spring out of my BOV so it would actually open. The only time you need to mess with the BOV when it comes to boost level is if it's leaking when you're on it.
Quote:
Originally Posted by bkathsalero
Then with the ricers in my town talking bout wastegates and blah blah blah.
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The wastegate allows some of the exhaust gas to bypass the turbo, so it doesn't spin it faster. It controls how quick the turbo spins, to control boost level.
Quote:
Originally Posted by bkathsalero
Don't know how to reduce lag, guessing its the turbo you choose, and let alone what turbo to choose. Being my personality I would buy the biggest and the baddest and blown my motor to smithereens!!!
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Yep it's all about the sizing. Trims, A/R, ball bearing, all matter when choosing. A small A/R turbine will spool up really fast but will be choking itself at high RPM because the turbine can't flow as much exhaust as it needs to in order to spin faster. Ball bearing allows the turbo to spool really fast because there's such little friction in the rotating assembly.
Quote:
Originally Posted by bkathsalero
And I have no Idea what a 2 bar tune is either. I'm aware I could quick get on to google and search to sound smarter than I am on this subject but then realize I still don’t know what the hell I'm talking about.
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Bar is pressure. 1 bar is what the stock sensor reads, -14.7 psi to 0. A 2 bar sensor can read -14.7 psi up to +14.7 psi (boost). And a 3 bar would go even higher into the boost range. In order for it to run right say at 8 psi, you'd need a 2 bar sensor, and the tune would need to be able to read and use that sensor so it can add the correct amount of fuel and everything else that's based off intake pressure.