jmm98LS1

iTrader: (28)

Made one motor pass and two attempts on the bottle. On motor it went 11.48 @ 122mph, 1750ft DA. On my first nitrous pass the motor just quit when I hit 2nd gear. No noise, just like someone shut it off. Wideband was reading really lean. Next pass I put a 1/4lb fuel pressure back in it and it popped through the exhaust bad once I hit 3rd gear. Was still a little lean on wideband, but not as bad as first run. Setup is 24N/20F fogger, 900psi bottle pressure, 5.5psi flowing fuel pressure, 18* timing on the hose. I've made it down the track on this tuneup before, only difference is I was granny shifting last time and the DA was 3000ft. Last night I was powershifting and the DA was 1750ft. I wasn't able to tow back to pits to read plugs so wideband reading is all I have. Normally I see about 12.0afr on the hose. Thoughts? Vid of all 3 passes:

http://s85.photobucket.com/albums/k5...HPT9-17-09.flv

bjamick

iTrader: (31)

Bang them gears!!

kinglt-1

iTrader: (26)

Damn man, looked like fireworks comin out of the exhaust lol!

1BADAIR

iTrader: (1)

whats it normally run? what rpm do you launch at

jmm98LS1

iTrader: (28)

I haven't gotten a good pass on the bottle yet because of clutch hyd issues. MPH is in the low 130's on the spray, but the ET's have sucked with the shifting problems. Should be good for mid 10's with a clean pass. In those vids I launched at 6200 on the motor pass, 6800 on the 2nd pass (clutch is dragging above 6500, you can see the car lurch forward) and back down to 6200 on the third pass. Once I get the clutch to stop dragging I'm hoping to launch at 7000. Best 60ft is only 1.69 with it bogging like it is.

Anybody care to guess what caused those bangs in the 3rd pass?

1BADAIR

iTrader: (1)

what plugs? did it kill them

our cars run almost the same

jmm98LS1

iTrader: (28)

NGK -8's. Getting ready to pull them now, but I drove it home from the track and it ran fine. I think I need to close the gaps up on them though, they're at .030 now