Is our cars come "rich" from the factory.?

Chan Chee Hoe · 07-31-2011, 01:25 AM

Hi Friends,i did a "Uprev" reflashed yesterday,the tuner told me,the car is running very rich[10.5:1] in running from factory,any reasons behind this.?My tuner has bring it down to 12.5:1,any harm to the engine,esp in warm weather in S'pore.?Thanks.

Chan Chee Hoe · 08-08-2011, 11:20 AM

I have adjusted the A/F ratio back to about 11:1,12.5:1 is too lean for our weather,engine runs rough & noisy,when going long distance[about 3o kms] engine felt less power.

07-31-2011, 01:25 AM	#1 (permalink)
Chan Chee Hoe Track Member Join Date: Mar 2009 Location: Singapore Posts: 861 Drives: 370z,Yellow,7sp A Rep Power: 17	Is our cars come "rich" from the factory.? Hi Friends,i did a "Uprev" reflashed yesterday,the tuner told me,the car is running very rich[10.5:1] in running from factory,any reasons behind this.?My tuner has bring it down to 12.5:1,any harm to the engine,esp in warm weather in S'pore.?Thanks.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
ACX "Cars for Japan" fundraiser,AustinTX Sunday May 8th!!(ACX biggest car meet, yet!)	autoconxepts	Texas	21	05-12-2011 04:47 AM
Official The370Z "Hot Girls with Hot cars" thread NSFW 01.01.09	AK370Z	Gentleman's Club	187	01-12-2011 01:24 AM
World Premier: Mercedes SL "NIGHT EDITION" -- First FACTORY made MATTE BLACK Benz	jav@vossen	The Lounge (Off Topic)	4	06-02-2010 10:30 PM
Maryland Z Club - March 28, 2010 - "Cars & Coffee"	rarwz	Mid-Atlantic Region	21	03-30-2010 06:30 AM
370Z Factory "Fairlady Z" Emblems in stock, At the 350ZSOURCE!!!	Michael@TheZStore	Exterior & Interior	13	08-01-2009 12:59 PM

08-08-2011, 11:20 AM	#2 (permalink)
Chan Chee Hoe Track Member Join Date: Mar 2009 Location: Singapore Posts: 861 Drives: 370z,Yellow,7sp A Rep Power: 17	I have adjusted the A/F ratio back to about 11:1,12.5:1 is too lean for our weather,engine runs rough & noisy,when going long distance[about 3o kms] engine felt less power.