Boryke

Forged 347. Stock heads. FM14 Cam through a 6 speed and a moser 12 bolt with 4.11's. LS6 Intake.

How do the numbers look? ... I just can't figure out this dip in the graph around 5k. Is this knock retard?

redtan

iTrader: (5)

Yes that looks like knock. That AFR curve aint too pretty either...is this car tuned?

Boryke

Mail order and I did some tweaking with HP tuners on the dyno. How is the motor AFR run? Any suggestions on what I should change or be looking to change?

LS1T56FTW

iTrader: (3)

I would have a professional tune this car before you do some serious damage to the motor.

Boryke

Are you saying even the motor tune looks that far off? It look's pretty solid to me and the power numbers seem high for my setup. Correct me if I'm wrong.

MeMz

Well your getting knock. That right there is a sign that it needs work on tuning. Plus your gonna scorch your pistons if you run too lean

redtan

iTrader: (5)

The motor only run is perfectly safe, although the AFR is very rich and not conducive to making power. It's ok up to 4500rpm, but after that there's no need for the curve to dip into the mid 11s N/A.

I agree with this while running on the juice, looks dangerous. Lots of knock and the AFR gets too lean from 4500 to 5200. That's peak torque and it's significantly more dangerous to run lean there. You're ok running it off the juice, but don't spray anymore until you get it tuned.

Boryke

Thanks. Do you think theres 10-15 more RWHP in the tune on motor? I plan on doing a "max effort" cam only setup and installing a fast 92 / 92 TB soon as well. If I could get over the 430 mark cam only with my current setup that would be the hotness.

redtan

iTrader: (5)

You stand to gain a good 10rwhp if not slightly more ~5000rpm to over 6200 where the fueling finally starts going where it should be. N/A should be 12.6-13.0, not mid 11s.

TeEnAgE pHeNoM

iTrader: (6)

I would get it to 12.5 across the board on motor. Br7ef plug gapped at 0.028-.030. Pull 8-9 degrees of spark and adjust fuel jet to achieve 12.5 a/f on the gas as well.