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U13 Bluebird & Altima => import specific => Topic started by: yoda598 on Jul 3, 2016, 12:10PM

Title: u13 attesa boost cut
Post by: yoda598 on Jul 3, 2016, 12:10PM
hey guys, i just got my hands on a attesa u13. the previous owner had the boost control set to 15psi, as far as i can tell its a standard ecu and injectors.. wouldnt 15psi be abit much for it... considering it has a t25 on it ive turned it back down to 12psi. but as the title states, i was wondering if they have a factory boost cut.. any info would be very helpfull.
Title: Re: u13 attesa boost cut
Post by: squizz taylor on Aug 31, 2016, 06:34AM
Yes they do have a factory boost cut but It's more to do with the amount of air flowing through the MAF than the boost pressure. The ecu doesn't directly sense boost, it's an algorithm that uses a few inputs to control the injectors duration and spark. Too much boost will cause excess airflow and a lean condition,  to protect the engine the ecu cuts fuel. This usually happens around 15psi.

What car did you get and where from. There's not a lot of them around, someone may know the car
Title: Re: u13 attesa boost cut
Post by: pedro666 on Sep 2, 2016, 12:17AM
I would invest in a wideband to monitor air / fuel ratios.