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406 2.0hdi 90 turbo adjust

Posted: Mon Dec 08, 2014 10:05 pm
by Imissit
What is the original boost on a 2.0 hdi 90?
And would it be very damaging to the turbo to adjust it up by 0.3-4 bar?

Re: 406 2.0hdi 90 turbo adjust

Posted: Tue Dec 09, 2014 4:40 am
by Captain Jack
Pretty sure the boost is controlled by ECU so you cannot simply adjust it yourself - only by remap.

Re: 406 2.0hdi 90 turbo adjust

Posted: Tue Dec 09, 2014 10:32 am
by Uberderv
On the 90hp it's mechanical, 110hp is ECU controlled. Standard boost is about 14psi. Without adjusting the fueling you won't see much gain.

Re: 406 2.0hdi 90 turbo adjust

Posted: Tue Dec 09, 2014 3:26 pm
by Welly
Indeed, remaps are more about injecting more diesel than going for high boost (they run high boost anyway and because there's no throttle butterfly you get maximum combustion air at all times).

More reading: http://www.hdi-tuning.co.uk/ecu-remappi ... power.html