Camaro223

Hello

this is the dyno from a car im considering purchasing. it is an ls3 supercharged camed on meth injection

My question is, is the afr proper?

Thanks in advance.

Darth_V8r

iTrader: (4)

No it's lean AF. I mean, it's stoich, but you generally don't want to be at stoich at full power - especially boosted.

ddnspider

iTrader: (26)

I'm willing to bet that either A) the AFR wasn't actually being read from a WBO2, B) there was a massive leak near the O2s, or C) that entire graph is fake and it didn't make that power if the AFR is accurate.

fst100

iTrader: (5)

I'm gonna say option A. That afr is lean as ****. If that's by the tail pipe its still lean as ****

Camaro223

It didn't look good to me and I'm not sure how it's even possible to leave a tune like that.. Asked the seller if it was indeed the final tune, he said yes.

Supposedly the car was tuned by a tuner with a good reputation in my area I've heard of before.

Awaiting a reply now. Wanted some input from people who know more than I do.

Thanks guys

bortous

Tune is fucked but the torque curve is nice and flat all the way through.
Love it.

Camaro223

update, Was told the wideband in the car reads a more proper lower 12 at wot.. but I feel it's not a wise choice to gamble on an afr guage reading without a proper dyno reading to acompany. Really like the car but I can't figure any reason why the graph is reading such a bad afr, outside of a bad tune. It has to be reading something I guess since there's a dip in afr past 6k rpm

ddnspider

iTrader: (26)

Telling you it's not possible the car made those numbers and that graph with that AFR. The scaling is off on the wideband or it was reading an exhaust leak. I wouldn't be afraid of the car just need someone to confirm who did the tuning.