McGruffAWD
20+ Year Contributor
- 260
- 0
- Sep 10, 2002
Hey guys i took a trip down to Atlanta the other night in high hopes with my 14b i just put on my car. When i got there i dumped 2 gallons of c16 in my tank with the remaining spinx 95(about 3 gallons). I turned my boost up to 20psi and i started my runs.
As i was doing my first run through 2nd gear right when boost starts to hit the car started to sputter. On and off. The boost was reading 20 then it would flutter between 20 and 15psi with the sputtering. Kinda scared me at first i though something blew off the car. I get back to the pit and immeditaly check under the hood for the obvious signs of a hose being blow off or what not. I then go to my DSM Link log to see wtf was going on. The o2 readings were werid. It flatlined at 1.00 volts so i knew i was running really rich. But then the 02 volts would flutter with the sputtering ranging from 92. to .72 back to 1.0 So i didnt really know wtf was going on there. I had absoulty no knock at all so i know my engine was fine. The timing and air flow curve where still going up. My rpms looked like a stair case tho. So i lean everything out some more.
To make a long story short i ran 5 times and each time it sputtered going down the track in 2nd and 3rd and sometimes in 4th. I finally had all of my settings leaned out to -25% across the board and it was still doing it. So after the track i go and pump some shity 92 back in the tank and reset my settting back to -5% across the board. Did a couple pulls at 15psi and everything is now back to normal. No sputtering at all.
Do you think i was just running super rich? I did install a 255 walbro in it with no reg so i know that didnt help to my problem. I checked my plugs and they all look fine, maybe burning a little hot. I have no boost leaks up to 20psi so i know thats not the problem. I think i have narrowed it down to either running to rich with c16 or my injectors are going. I am still running the stock 450's My global and dead time for dsmlink are all zeroed out. Any help would be awesome thanks!
As i was doing my first run through 2nd gear right when boost starts to hit the car started to sputter. On and off. The boost was reading 20 then it would flutter between 20 and 15psi with the sputtering. Kinda scared me at first i though something blew off the car. I get back to the pit and immeditaly check under the hood for the obvious signs of a hose being blow off or what not. I then go to my DSM Link log to see wtf was going on. The o2 readings were werid. It flatlined at 1.00 volts so i knew i was running really rich. But then the 02 volts would flutter with the sputtering ranging from 92. to .72 back to 1.0 So i didnt really know wtf was going on there. I had absoulty no knock at all so i know my engine was fine. The timing and air flow curve where still going up. My rpms looked like a stair case tho. So i lean everything out some more.
To make a long story short i ran 5 times and each time it sputtered going down the track in 2nd and 3rd and sometimes in 4th. I finally had all of my settings leaned out to -25% across the board and it was still doing it. So after the track i go and pump some shity 92 back in the tank and reset my settting back to -5% across the board. Did a couple pulls at 15psi and everything is now back to normal. No sputtering at all.
Do you think i was just running super rich? I did install a 255 walbro in it with no reg so i know that didnt help to my problem. I checked my plugs and they all look fine, maybe burning a little hot. I have no boost leaks up to 20psi so i know thats not the problem. I think i have narrowed it down to either running to rich with c16 or my injectors are going. I am still running the stock 450's My global and dead time for dsmlink are all zeroed out. Any help would be awesome thanks!
