JESSIE

iTrader: (3)

I went to the dyno and put down a best of 387.7rwhp @ 6400 and 362.2 ft lbs @ 5100
I just got HP tuners and am trying to figure this out. My air fuel ratio was pretty rich on the first couple of pulls I leaned it out by reducing the PE. I was able to get a pretty flat smooth afr around 12.9-13.0.

I started to mess with the timing and incresed it from 28 to 33 degrees in 1 degree increments I didn't see any loss of power and no knock.

I thought I should have gotten more power do you think I should take out some timong or leave it at 33 degrees. Any advice. I am goign to the track on Sunday and will play with it some more.

chevyls10

iTrader: (2)

take that timing back out, you hit the threshold of power increase. Also it will safe guard you for later if you get some crappy gas or if your tune is rough under other conditions.

Were those numbers while the TNT kit was spraying? If so that is a little lean and I cant believe it wasnt knocking

JESSIE

iTrader: (3)

no that was all motor no spray. I lower the AFR to around 12.4-12.5 and take about 4 degrees of timing out on the bottle.

chevyls10

iTrader: (2)

nice hp numbers then but you should take that timing out since it is not doing anything for you. Although 28 degrees on the top end sounds high already but if it works then awesome