03 m45 is running too reach. low numbers on dyno.please help.

[caug]

hello,i did dyno test and my numbers were very low so we did air/fuel test it show that i am running too reach there for my numbers so low.i did computer test at the dealer .it is perfect numbers with in infiniti specs.no engine light on.do you know anything about it ?please help.thanks,caug.

[Q45tech]

What was peak torque ....around 250-260 lb/ft is normal on a chassis dyno, assumming you use to spec gasoline - 93-91 no ethanol?

Best torque and peak hp are generated with an AF of 12.5-12.1, however oem always run richer than ideal to be protective of Summer heat and bad gasoline and owner abuse and infrequent maintenance.

[caug]

i use 93 only 210whp. 205 tourqe.dyno is very accurate. it is the best there is. you can check it out at http://www.ktrperformane.comcar feels very strong no hesitating.i am depressed.

[caug]

if i to cut out all the cats and make straight pipe leave just the muffler . would that help on 03 04 m45? also put new high flow mufler.dyno guy said that he can install thing that can adjust mass air to make more power and so car will not run too reach.thanks,caug.

[Q45tech]

Something is very wrong if those are accurate numbers...........fix the engine problems then worry about upgrades much later.

A badly tuned full of problems V6 G35 does much better than the numbers you provided for a V8????

"210whp. 205 tourqe."

[caug]

What was peak torque ....around 250-260 lb/ft is normal on a chassis dyno, assumming you use to spec gasoline - 93-91 no ethanol?

Best torque and peak hp are generated with an AF of 12.5-12.1, however oem always run richer than ideal to be protective of Summer heat and bad gasoline and owner abuse and infrequent maintenance.

what is the "af of 12.5-12.01 means?thanks,caug

[maxnix]

AF ratio is the Air to Fuel ratio.

Do read an FSM.

[caug]

here are the numbers from infiniti computer.#1. eng speed 650rpmmas a/f se-b1 1.32vcal/ld value 18%mass air flow 4.35gm/s#2.eng speed 2475mas a/f se-b1 1.11vcal/ld value 16%mass ari flow 16.42#3.eng speed 2500rpmmas a/f se-b1 1.94vcal/ld value 15%mass ari flow 16.30 gmsplease let me know if these looks good.thanks,caug