I'm spraying right straight into the intake tube / Maf a brand new tr6 plugs gapped at 30 thousands.

Any bigger jet and the truck cuts in and out. No pops just feels like I let off mid pull.

Af Na was 12.5 and with the 36 jet it was 13.0. It pulls great on the little jet

I've done the research on nitrous and know timing should be pulled but i think a shot under 100 should be fine.

09 5.3 flex fuel on 93 oct

Should I try moving the nozzle or tighten the plug gaps to a high 20? Goal is to run a 47 jet.

Please keep your wet kit comments, this only needs to work for one race.




UPDATED - IT WAS FREEZING THE MAF SO I MOVED THE NOZZLE IN THE TUBE MORE AND SHE LOVES THE SPRAY

 

Whats the plugs look like?

 

Plug was good. Light brown.
Pulled right after wot.
Lm2 was reading low 13s

 

Any way of getting a logging software to see what is going on?

 

I dont have a labtop to connect to my lm2. I use it as a live hand held air/fuel meter.

Im tempted to try putting the shot after the maf to see what happens.

It might be timing related or spark or maybe the nitrous is freezing the maf?? Again I have it spraying right down the center of the tube. the nozzle it self is about 6 inches away from the maf.

 

It could be freezing it with the bigger jet.
I ment logging with efilive or hptuners to watch timing and all that.
I wouldn't do it after the MAF, it will more than likely go lean.

 

I hear ya, thats why i was thinking about either moving it further away from the maf. like 12 or 14 inches away or trying a smaller jet after it. just to see. If it spikes lean ill get outta it. Prolly spray it right into the vaccum port on the back side.

wouldnt hurt to try a 30 jet after the maf to see what it does.

 

is the truck tuned?

 

it sounds almost like its blowing out the spark, but then again that sure sounds lean.

 

Tuned for NA. YES.

might be lean but it was mid 13 on the 36 jet. The 42 shoulda worked and been a little leaner. Hmmmm