Curious as to what you guys are gaining in the 1/4 with nitrous. How much shot, what all-motor trap, what on bottle trap? How much back half gain from N/A to spray? (1/4 mph - 1/8 mph is back half gain)

Reason I ask, running the car last night, seeing 79-80mph in the 8th, 103-104 in the 1/4 on motor alone. 23-24mph back half gain.
Bottle runs were 86ish and 112ish. 24mph gain. Doesn't seem right to me. Car is def more powerful, but either i'm hitting 4th and it's killing the trap speed, or something strange is happening with my spray, but the car doesn't seem to put out the power it should with the nitrous. I know I need to dyno the car to be sure, and I will, just curious in the mean time to compare notes with other drag racers.

 

Off the bottle I'm usually around 13.3-13.1 range at 105-106. My best nitrous run to date was on my N/A tune with .41 .20 jets. I switched to .47 .26 and retarted the timing 2 degrees and ran race gas but couldnt run faster than 12.0@113. Now I have a nitrous tune with .47 .30 but havent run with it on slicks.

 

How big of a shot are you running? Also which bolt on's do you have?

 

in for details... spraying soon....

 

Jetting is supposed to be for a 125 shot. No bolt ons at the moment, just a Cobb AP and a muffler delete.