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Hey everyone. I'm got a very annoying problem. I've had for ages and never bothered to fix lol.

Ok, so the boost comes on really slowly, as in comes on and hovers around 8-9psi for ages , then shoots up to 16 really high in the rpm range.. I'm guessing like 6k rpm.. It comes on that slowly that in 2nd sometimes it won't even hit full boost before limiter...

Just wondering if a air leak would cause this? And if so what's a good way to check ?..

Hope it makes sense..

Standard r34 turbos and a microtech in case ur wondering...

And it still does this with boost controller disconnected and also the boost spikes hard on or around limiter...

Look forward the replys !

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https://www.sau.com.au/forums/topic/409410-rb26-lazy-boost/
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Hey everyone. I'm got a very annoying problem. I've had for ages and never bothered to fix lol.

Ok, so the boost comes on really slowly, as in comes on and hovers around 8-9psi for ages , then shoots up to 16 really high in the rpm range.. I'm guessing like 6k rpm.. It comes on that slowly that in 2nd sometimes it won't even hit full boost before limiter...

Just wondering if a air leak would cause this? And if so what's a good way to check ?..

Hope it makes sense..

Standard r34 turbos and a microtech in case ur wondering...

And it still does this with boost controller disconnected and also the boost spikes hard on or around limiter...

Look forward the replys !

Check the waste gate actuators for their actuation pressure and make sure the flap isn't open slightly or has low pressure.

Link to comment
https://www.sau.com.au/forums/topic/409410-rb26-lazy-boost/#findComment-6535521
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