E70 stock boost pressure.

[Thrawn]

I have a 2013 x5 35i. I installed BimmerLink and BimmerCode. My boost shows 14psi and higher according to BimmerLink. I thought the stock boost was closer to 10. Is there a way to see if the previous owner did some type of tune and what it is? Thanks

[Thrawn]

No one knows this?

[dang2407]

I've been told it gets as high as 3 bar absolute which is 2 bar (29psi). Haven't verified this yet...

[Thrawn]

Ok thanks. Maybe mine is stock then. I thought I read somewhere stock was 9-10 psi.

[Rich807]

General rule of thumb on tons of turbo engines is about 10psi boost per 100hp.

[E-Novo]

Mine shows the same thing on BimmerLink. I was told that the apps don't compensate for base atmospheric pressure - or something like that. You need to subtract about 14 from the boost number. Cruising on the highway at 80mph - my boost was 16.6... I knew something was up.

If you do a search it should come up. I can try to find it if you can't.

[T-Dubbs]

Originally Posted by Rich807

General rule of thumb on tons of turbo engines is about 10psi boost per 100hp.

That's the dumbest thing I've ever read...

A 600hp m5 would run 60psi???

[Rich807]

Originally Posted by T-Dubbs

That's the dumbest thing I've ever read...

A 600hp m5 would run 60psi???

Perhaps you missed where I was mentioning a 'rule of thumb'? Obviously it doesn't apply to all vehicles & especially to high performance vehicles like M-series, AMG etc. I've owned a # of diesel vehicles in my life that easily fit into that rule of thumb but glad I could give you a new dumbest thing you've ever heard & a good laugh though!

What's the stock max boost pressure on x5 35i equipped car?

What is it on an E70 x5 35d equipped car?

[Nkponder]

Originally Posted by Rich807

General rule of thumb on tons of turbo engines is about 10psi boost per 100hp.

That's not the dumbest thing I've ever heard, haha, but it is not a good rule of thumb.

Stock boost is around 10psi, but can can peak around 12psi. If you have an EWG, which I think they implemented in 2012, then the boost can peak around 14psi.

[Rich807]

Originally Posted by Nkponder

That's not the dumbest thing I've ever heard, haha, but it is not a good rule of thumb.

.

Thanks. I agree that today it's not a good rule of thumb with the way modern turbo vehicles are designed.