heres the motor pass is blue





the red pass is 1000 bottle pressure the green is 900psi



heres the air fuel the blue is motor


and the other to is nitrous




the motor got 4 degress out of it at all times for nitrous

 

here are the plugs

 

is this a chassis dyno or engine dyno?

 

chassis dyno with a 4l60e with a 3500 vig stall not locked

 

I knew you were down on power. Looks like a tune could solve it though.

 

ya im loosing thur converter a lot id prob only gain 10hp

 

Seems low to me. Are you just stating the #'s or are you asking why they're low?

 

kinda both what kinda numbers u feel it shoulda put down on motor

 

Need more info on the combo. Also, it is of course a guessing game online anyways. Stock heads? Ported heads? Dyno tuned?

 

heres the list

its a pcmforless mail order tune with 4 degrees of timing always out for nitrous

Lt1 350 bored to a 355
Heads ported and polished (flows: intake 278, exhaust 197)
CC Cam 230/242, .510 lift,113 lobe separation
Comp Cams Pro Magnum 1.6 roller rockers w/7/16" studs
Comp Cams 987 Dual Valve Springs
SI Silverline Series Valves,(2.00" intake and 1.57 Exhaust)
Eagle H beem connecting rods
JE Forged Nitrous Pistons
Crane Hardened Push Rods
Ported Intake Runners to match Heads
K&N Cold Air Induction
Relocated Air Intake Temp Sensor
Hooker Headers Long tubes.
Borla 3" exhaust
Accell Super Coil
FMS 30lbs. Injectors
PI VIG 3500 Stall Converter

 

Get a 6AL to only pull timing when you spray, leave that 4 degrees in there normally. Were you lifting on the dyno at 5800 or does it legit just faceplant like that? That cam should want to rev past 6500.

 

Disregard what that power number was, too many variables with dyno types and settings, and you have an unlocked stall which eats a lot of power anyway.

Besides your tune being way off (that A/F on motor looks terrible), something else is strange. With the 987 springs and that cam with ported heads you should be pulling way past 5800.

Doesn't quite look like valve float or ignition problems either. Do you have a data log with your knock counts?

 

did not make sense he smashed it at 3500 and we took it to 6500

I sprayed till 6100

 

I think his dyno was way off because we took the car up to 6500 I was in the car that's what the car tach and my other tach went to so it may be pulling till 6500 no clue besides that chart but I dunno if im believing that....

I had a hand held scanner my knockcounts were only 17 in fifteen minutes of run time that's getting on it a few times never detected knock

 

ya its rich on motor but the plugs seem to be good. another variable who knows when his o2 sensor was last tested

 

Get that ARF leaned out and you will see some gains. Probably pickup some MPG too.

 

mystery bird do u got any cables for sale?

 

If you mean for tuning then yes I have one left for the 94 style obd1.

 

Whats ur asking price shipped to 15473? And what kind of cable is it

 

It's the cable with the USB adapter upgrade. I would like $55 shipped.