Very disappointing low dyno numbers please help!!!!!!!

AlphaSnacks · 03-10-2012, 12:17 AM

Every Z is different with mods, and the AFR will never just be lean or just rich - it's usually a mixture of both throughout the powerband. Before my tune my car was running really lean in the low-end, high 14s/low 15s. After 3K RPM, the AFR got richer and hit 13s. But after 5K RPM the mixture got pretty rich and was in the 11s and sometimes high 10s. With my current tune, AFRs should be in the lowish-12s across the board.

I'm going to re-log the car and look for timing adjustments that can be made, as well as any possible flat-spots in the AFR (anything outside of the 12 range past 1500RPM, basically).

Edit: Also dynoing nearly a year later negates the purpose of comparing dynos, even if the temp and machine were the same.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
My Dyno Numbers	joshs09slvrZ	Tuning	20	10-27-2011 07:39 AM
Dyno Numbers with mods	jtgarza3	Nissan 370Z Roadster (Convertible)	5	05-11-2011 10:59 PM
Dyno Numbers	PR370z	Intake/Exhaust	13	12-05-2010 09:56 AM
My Stock Dyno Numbers!	Mythic	Nissan 370Z General Discussions	28	09-01-2010 01:53 PM
nismo dyno numbers	Supergoji	Nissan 370Z General Discussions	36	05-06-2010 09:17 AM

03-10-2012, 12:17 AM	#11 (permalink)
AlphaSnacks A True Z Fanatic Join Date: Jan 2010 Location: Windermere, FL Posts: 1,618 Drives: '13 XKR-S, '10 370Z Rep Power: 19	Every Z is different with mods, and the AFR will never just be lean or just rich - it's usually a mixture of both throughout the powerband. Before my tune my car was running really lean in the low-end, high 14s/low 15s. After 3K RPM, the AFR got richer and hit 13s. But after 5K RPM the mixture got pretty rich and was in the 11s and sometimes high 10s. With my current tune, AFRs should be in the lowish-12s across the board. I'm going to re-log the car and look for timing adjustments that can be made, as well as any possible flat-spots in the AFR (anything outside of the 12 range past 1500RPM, basically). Edit: Also dynoing nearly a year later negates the purpose of comparing dynos, even if the temp and machine were the same.