Anyone have the boost pressure?
- Thread starter cocodrilo
- Start date
Help Support Nissan Navara Forum:
Scott52
Member
When I have Torque running the boost usually peaks around 18 psi to 19 psi. Occasionally it will get to about 21 psi.
Hi here have a intake press parameter, and show More thank 40 psi, i see the turbo and is new.
Attachments
I think you guys are talking about different things.
I think @cocodrilo is quoting intake manifold pressure while @Scott52 is quoting turbo boost.
I have read elsewhere that the former includes atmospheric pressure. That is, intake manifold pressure = atmospheric pressure + boost pressure
If that is correct (feel free to jump in if I am wrong) and atmospheric pressure is 14.7psi, then your boost is maxing at circa 25psi.
Most would say that is very high. The ECU normally throws you into limp mode for over-boosting around the 21-22 psi mark. If it doesn't then perhaps yours has had a remap? Just guessing.
I reckon most folk here enjoy max boost between 18-20 psi. I've hit 21 psi (that I know of) just once.
Happy to be corrected on any of the above.
I think @cocodrilo is quoting intake manifold pressure while @Scott52 is quoting turbo boost.
I have read elsewhere that the former includes atmospheric pressure. That is, intake manifold pressure = atmospheric pressure + boost pressure
If that is correct (feel free to jump in if I am wrong) and atmospheric pressure is 14.7psi, then your boost is maxing at circa 25psi.
Most would say that is very high. The ECU normally throws you into limp mode for over-boosting around the 21-22 psi mark. If it doesn't then perhaps yours has had a remap? Just guessing.
I reckon most folk here enjoy max boost between 18-20 psi. I've hit 21 psi (that I know of) just once.
Happy to be corrected on any of the above.
You are right, my app (thinkdiag) was not giving me the boost value, only the intake value, I will try to install Torque and see if I can use it with my OBD2. On the other hand, I bought the truck recently, and I found a spare part inside that was a turbo pressure regulator, I imagine that the previous owner already knew about this problem, I replaced the part and it lowered the pressure to 20 psi (subtracting the barometric pressure).
