BriancWS6

iTrader: (18)

I am interested in what A/F everyone runs with their bolt on, cam only, or heads/cam car. I was always under the impression that you wanted to stay right around the 13.0 range. What is the highest that you can SAFELY run before you start to shorten the life of your car?

What A/F does it need to be to be safe with a dry shot? In the mid 12's? High 11's? Just looking to see what everyone else is at compared to me. Post up!

Ksett

Cam only 13.0

gillbot

iTrader: (27)

Mine is about 13.0. Graph is here: https://ls1tech.com/forums/dynamometer-results-comparisons/476349-tr230-224-a4-dyno.html

redtail2426

iTrader: (10)

im gonna tune mine to 12.5-12.6 or so.Its a street car and dont care to run it at 13.

GuitsBoy

iTrader: (4)

I think 13:0 is still pretty safe, but watch it when it starts spiking to 13.3 in places. Some N/A races lean out as far as 13.5 but thats way lean for my taste. I shoot for 13:0 but try and err on the side of extra fuel.

redtail2426

iTrader: (10)

if the gas around here wasnt so crappy i would run 13.0,but i just dont trust it

BriancWS6

iTrader: (18)

Great responses guys! Here's a pic of my graph, you can see the A/F is a bit lean.....I am going back soon to try and get the MAF to compensate for the dry hit, gonna add some fuel back in there to make it safer.

Robinator

iTrader: (1)

I am 12.8 across the board.

black01_WS6

iTrader: (13)

I am running at 13.0 across the board. yours does seem to be a bit on the high side, especially for a dry shot. I would probably run it at around 12.8 or so for safety.

vettenuts

iTrader: (4)

My AFR at 6,000 RPM is around 12.2:1. Tuner keeps a safe street tune despite what seems to be the internet logic.

Billiumss

iTrader: (11)

On the dyno - 12.7-12.8

On the street - 12.9-13.0

N20 - 11.5-11.8

GuitsBoy

iTrader: (4)

You guys will likely see some KR before you have to worry about melting ****. I dont see the slightest bit of KR at WOT with 10.85:1 compression and 13.0 Air/Fuel.

FDLS1

iTrader: (2)

Where are you guys measuring it at, the tail pipe? or do you have a wide band O2 pluged in after the headers?

GuitsBoy

iTrader: (4)

I measure with a wideband in my X pipe, and had my readings backed up on the dyno with a dynojet wideband at the tailpipe. The two numbers matched perfectly.

FDLS1

iTrader: (2)

Thanks for the response and would it matter if I just pluged it into one bank?

GuitsBoy

iTrader: (4)

No, thats perfectly acceptable to do. Just be aware you may overheat the sensor. Its not likely but it does happen.

Ryan02SS

iTrader: (3)

12.8-1 LM WB Dyno Tailpipe

Street is stays 13.0-1

I've ran 3 different Cam and H/C setups with this above and have not had a single problem in 3+ years.

As BilliumSS said above 11.5-11.8 for the N20.

radkon

iTrader: (2)

We tried 12.8 on mine but put out a few more ponies at 13.2 with 0 Knock

Robinator

iTrader: (1)

My tuning was done with the sensor pluged into the first O2 bung and completed with LS1 edit on a dyno.

lowchevy2go

iTrader: (4)

13 across the board....all bolt-ons