Higher boost levels when its very cold outside.

[Chris_Sag]

Hi. My car was tuned at the dyno for 16psi 16g stock fuelsys and 98oktane in the summer, i know this sound mutch but my EGT were fine and no timing taking away from the engine. But in these days it is extremely cold outside around -20Celcius, and when I floor the pedal, boost raise to 20psi. Is this normal or dangerous? The air the engine gets is so cold that it is not dangerous for to high EGT ect?

 

[laserspeeddemon]

Yes i have a aftermarket boost gauge, analog... But the boost is adjusted on the arm to the wastegate on the 16g.

How many lbs/min do the small 16g pulls at 15psi?

505cfm so about 35 lbs/min.

 

[97gst_spyder]

Is it an adjustable wastegate arm or solid?

 

[95TalonOwner]

Yes i have a aftermarket boost gauge, analog... But the boost is adjusted on the arm to the wastegate on the 16g.

How many lbs/min do the small 16g pulls at 15psi?

Just said two posts above yours.

 

[islideawd]

i did this last year on my 1G with 20g set at 20psi on 91 with octane booster and it was -15*C with about a -25*C windchill.. i shattered the ring landing on #1 and all i did was come aroud the corner and mashed the gas in second and let off and white smoke and died.. sorry for the crap pic

 

[Chris_Sag]

Bump... I have now installed the AEM-uego and is still running 16-17psi. when i floor it my readings is around 10,2-11,4-1 and the light is always on green. When daily driving the orange light is on and reading 14,1-15,7. When idling the light becomes red and it lies around 17-1.

How is it possible that I am running rich at stock fuelsystem and a 16g running 16-17psi? Something must have been done to the car in the past?

 

[1Bad4G63T]

Hooking up an MBC is pretty simple...you just disconnect the small rubber hose that sends air pressure to the waste gate...hook it up on incoming side (pressure flows the direction of the arrow...one in...one out) then run the tube from the solenoid to the wastegate...all it does is give a spring loaded solenoid for the air pressure to run through before it reaches the wastegate...this doesnt really allow you to tune your boost down below the standard rate on your waste gate...it just allows you to adjust the pressure up to allow your turbo to create more boost than the waste gate would normally permit...not entirely helpful in your situation.