I've had nitrous on other cars, but not on the LS1. So, I was curious where the ratio would be optimal for shooting a 100-150shot.

 

While N/A motors like 13.0-13.4 range, A 150 shot would like a 12.5-12.8 ratio to be powerfull yet safe(dont want detonation). Remember on a dyno you dont have quite the load as a run at the strip so if you use a wideband on the dyno, add about .3 to the air fuel ratio to get a closer idea to what the A/F will be at the track.

 

I tune mine in at 11.8-12.0 on the dyno for a little safety.
I figure just put a bigger jet in for more power and tune it safe so you get more life out of the motor. <img src="gr_images/icons/wink.gif" border="0">

 

i have found power to peak almost every time around 12.3:1 on the dyno. this is with 100 and 150hp jets.