donhuh

I dyno my Z using DYNOJET.. I did two runs and my best number is 246.42hp 242.38torque. SAE correct.
my A/F ratio was about 14 at 4500rpm and 13.5 at 5500rpm went down to 12.8 at 6000rpm. Is this safe?? am i running rich ??
My mods are Pop charger+test pipe+Greddy Evo2 exhaust. Im kind dissapoint at number.. I was expecting over 250hp.. cause stock Z dyno about 240hp. I will post dyno sheet later.

Wired 24/7

iTrader: (2)

The ECU is programmed to get richer in the upper RPMs. Yours sounds normal. You can lean it up a bit by getting an ECU reflash.

gdirty5

and your in CANADA, the weather must be nice!

Z BOY

iTrader: (41)

didn't you blow your engine?

gdirty5

Hey Z boy what front lip is that on your car?

Z BOY

iTrader: (41)

cheapy nismo replica, but abs, which is what all front lips should be made of, imo.

donhuh

no..

egsmachine

didn' happen to get a run before the mods did you?

donhuh

NO im thinking to flash my ECU or get S-AFC II install and turned

Z BOY

iTrader: (41)

sorry bro, i had you confused with someone else.

mavtais

iTrader: (12)

You didn't baseline?!
So how do you know your car is any stronger at all?

Wired 24/7

iTrader: (2)

If he gets it flashed, it will be stronger... he can use the current setup as a baseline now.

donhuh

here is my Dyno graph.. A/F ratio seems safe to me.. I dont care about my Hp, I just want to makesure my Z isn't running rich or lean..

Amnbex

Dyno's are incredibly reliable measurements of performance.

/e-sarcasm off

nicolaycastro

iTrader: (3)

I heard before there are different types of dynos, HP can vary alot between them.

FairladyZ

Nice numbers, check out this guys.
https://my350z.com/forum/showthread....53#post1526753

donhuh

some one please tell me my A/F ration seems safe ?? Do i really need reflash my ECU??

DOHC

Your A:F ratios seem "okay" to me although at WOT closer to 13 would be nice. The ECU is set for emissions remember, not power. Forget about the bobble at 2500 rpm, that's an anomaly of the DYNOJET dyno at the start of about every run.

But I don't place a lot of faith in the typical DYNOJET A:F sensor. Stuck in the tailpipe it can give poor readings. Far better to put it in a bung welded into the system closer to the exhaust ports....like an oxygen sensor port for instance. But the typical dyno jockey only wants to get it done quickly and knows that most customers only want horsepower "dyno bragging rights" anyway.