Doubt about my A/F Ratio

toner123 · 06-14-2011, 05:05 PM

Hey just to let you know and hopefully this information helps you. Sam@GTM has told me multiple times to not put full faith in cipher's AFR. He said it is good enough to give you a idea on your AFR but not to think that is the actual because the table in there that computes it, is not that great. Hope this helps with putting you at ease a bit
Frank

pty370z · 06-14-2011, 05:09 PM

Thanks for your comments guys!

Quote:

Originally Posted by toner123

Hey just to let you know and hopefully this information helps you. Sam@GTM has told me multiple times to not put full faith in cipher's AFR. He said it is good enough to give you a idea on your AFR but not to think that is the actual because the table in there that computes it, is not that great. Hope this helps with putting you at ease a bit
Frank

Thanks for this info.. Do you by any chance have an idea on what is the approximate difference between Cipher and the real numbers..??

Thanks again!

toner123 · 06-14-2011, 05:30 PM

Quote:

Originally Posted by pty370z

Thanks for your comments guys!

Thanks for this info.. Do you by any chance have an idea on what is the approximate difference between Cipher and the real numbers..??

Thanks again!

No I do not. Sam would no since he has ran the cipher against a AFR guage if i remember right

Megan370z · 06-15-2011, 07:05 AM

on my car and my Innovate AFR gauge ,, Cipher read about .3-.5 AFR richer depending on the RPM than the aftermarket sensor

example;
Cipher @ 7000 rpm = 12.9
AFR sensor @ 7000 rpm = 13.4

pty370z · 06-15-2011, 07:13 AM

Quote:

Originally Posted by Megan370z

on my car and my Innovate AFR gauge ,, Cipher read about .3-.5 AFR richer depending on the RPM than the aftermarket sensor

example;
Cipher @ 7000 rpm = 12.9
AFR sensor @ 7000 rpm = 13.4

That's good to know.. Thanks for your input..

My Cipher reads around 10-11 @7000rpm so even with a .5 difference I'm still running rich @ WOT..

The sad thing is, there are no Dyno's in my country and no UpRev certified tuners.. How great is that?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
VHR + FD Gear Ratio upgrades - 3.9 and 4.08	KLRCADI	Engine & Drivetrain	170	02-19-2016 10:16 AM
low vs high compression ratio for FI	Legz	Forced Induction	17	07-30-2012 11:50 AM
doubt anyone has these for sale(red interior pieces)	jrniehaus	Parts for sale (Private Classifieds)	2	05-26-2010 11:05 PM
Unpopular Post (no doubt but...)	Slynky	Nissan 370Z General Discussions	66	11-26-2009 11:07 PM
Close ratio gears?	tvfreakazoid	Engine & Drivetrain	24	01-30-2009 03:44 PM

06-14-2011, 05:05 PM	#1 (permalink)
toner123 Track Member Join Date: May 2010 Location: chesapeake va Age: 40 Posts: 823 Drives: TT 370z Touring/SP Rep Power: 16	Hey just to let you know and hopefully this information helps you. Sam@GTM has told me multiple times to not put full faith in cipher's AFR. He said it is good enough to give you a idea on your AFR but not to think that is the actual because the table in there that computes it, is not that great. Hope this helps with putting you at ease a bit Frank

06-15-2011, 07:05 AM	#4 (permalink)
Megan370z A True Z Fanatic Join Date: Oct 2009 Location: Canada Posts: 1,156 Drives: 370z Rep Power: 24	on my car and my Innovate AFR gauge ,, Cipher read about .3-.5 AFR richer depending on the RPM than the aftermarket sensor example; Cipher @ 7000 rpm = 12.9 AFR sensor @ 7000 rpm = 13.4