Stock Ty runs 12.60??

[msheller]

Re: Stock Ty runs 12.60??

N/A engines depend on atmospheric pressure to fill the cylinders with air. Less pressure, less air. Less air, less O2 to support combustion, less power. Boosted engines have an auxiliary means of forcing air into the cylinders so they don't suffer as great of a power loss. WOT on a N/A engine @ sea level is 14.7psi in the manifold, whereas in Denver its 12.? I think. Things get fuzzy when turbo pressure (true boost) and manifold pressure begin to get involved .

Denver is half the elevation compared to summit county... you think things feel slow in denver??? drive up route 70.... Ty kept stalling first trip up there around 12,000 feet

 

[gkrcr882]

Re: Stock Ty runs 12.60??

Go WOT, or shut down and re-start it, it allows the MAP to re-calibrate baro pressure (on most vehicles). Some newer vehicles have both a MAF and MAP, others have MAF and a baro sensor. Regardless, baro pressure is a needed input for the ECM.

 

[turbodig]

Re: Stock Ty runs 12.60??

Go WOT, or shut down and re-start it, it allows the MAP to re-calibrate baro pressure (on most vehicles). Some newer vehicles have both a MAF and MAP, others have MAF and a baro sensor. Regardless, baro pressure is a needed input for the ECM.

Doesn't work that way on our ECM. Ours actually reads the MAP on Key-on or key-off.

 

[NorwegianTy]

Re: Stock Ty runs 12.60??

Doesn't work that way on our ECM. Ours actually reads the MAP on Key-on or key-off.

Originally Posted by gkrcr882
"....shut down and re-start it, it allows the MAP to re-calibrate baro pressure..."

Wouldnt that mean that it works like this? If it reads the map at key-on "puls" and key-off..

 

[turbodig]

Re: Stock Ty runs 12.60??

Originally Posted by gkrcr882
"....shut down and re-start it, it allows the MAP to re-calibrate baro pressure..."

Wouldnt that mean that it works like this? If it reads the map at key-on "puls" and key-off..

That part would. The WOT part, no.

 

[NorwegianTy]

Re: Stock Ty runs 12.60??

I see:tup: Just got a bit confused.