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How Much Boost?


jbrnr21

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  • Member For: 12y 4m 7d
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Hey guys, I have recently bought a 05 ba mk2 and am wondering how much boost the stock/unmodified motor can handle? A mate has a 11 or 12psi actuator that he has off his race car that he isn't using but thought I'd check it out first.

Also do they have a separate over boost valve on the manifold somewhere as a back up? Probably not relevant but a vl I had a few years back had One and no one could tell me why it wouldn't boost more then 11psi lol (not comparing it to a vl... Just past experience)

Cheers,

Jay...

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Your stock actuator would've be fine for 11-12 psi!

Just a tune would net you around 40rwkw

Injectors cat converter and intake would see a fair bit more! 15 psi is safe as long as the tune is good.

Edited by Kosij
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Just bolting on that actuator won't give you 11-12psi. It will send your car into limp mode every time you boot it.

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As the car isnt set to run the higher boost it should hit boost cut and therefore go to limp mode. These things arent like you typical subaru or skyline where you can alter the boost and it makes up for it to an extent. The falcon must be tuned to actually allow it and not blow itself to pieces.

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Oh Righteo, thanks for that... I'll have to leave it for now then and do a bit to it first.

Thanks again,

Jay...

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  • 3 weeks later...
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Oh cheers mate, like I said once before... It's the newest turbo car I've owned, had 2 vl's, a 180sx, a cordia and a et pulsar and you could pretty much just screw it into them (as long as you could keep the fuel up to it) so this is a bit different but learning fast off all you guys :)

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