89tsi20g Posted June 7, 2004 Report Share Posted June 7, 2004 if you keep a/f ratio at 14 from start to end of dyno pull you'd replace engines everytime you go dyno ;D, my recommendation would be 11.8 when doing dyno on a lot of boost, or any boost more than 5psi(our cars or low comp. engines for that matter), Rob NJ. Link to comment Share on other sites More sharing options...
Shelby Posted June 8, 2004 Report Share Posted June 8, 2004 correct an a/f of 14 is for your daily driver and eminsion testing , not ideal mixture for raceing Link to comment Share on other sites More sharing options...
artinist Posted June 8, 2004 Report Share Posted June 8, 2004 yea, and our cars especially like it rich for some reason. 10.5 or 11 :1 when boost is around 18-20 Link to comment Share on other sites More sharing options...
Heron Posted June 8, 2004 Report Share Posted June 8, 2004 Well I'll have to dyno my car again. Last year I wasn't able since the first pull it was too rich, then on the second pull the stock intake hose cracked then it went lean and we had to stop the test. I'm pretty sure I've seen some Japanese videos on Nissan cars beeing turbocharged and they very proud of the "constant" 0.86 volts on the readings. I'm not sure what was my A/F when I dyno my car the first time 2 years 1/2 years ago. The problem is that now I have more then 160K on the engine. Link to comment Share on other sites More sharing options...
artinist Posted September 16, 2004 Report Share Posted September 16, 2004 any updates? Link to comment Share on other sites More sharing options...
MidNiteRide89 Posted September 17, 2004 Report Share Posted September 17, 2004 Art, I believe Jason sold his car a few months back. Link to comment Share on other sites More sharing options...
artinist Posted September 17, 2004 Report Share Posted September 17, 2004 ahh, gone are those magical unicorns under the hood. Link to comment Share on other sites More sharing options...
cudabnu Posted September 18, 2004 Report Share Posted September 18, 2004 We'll I believe him on the fuel. I've been running a 20G turbo at 20 lbs of boost on a stock intake and fuel system for awhile with no problems. I have it set for about 15lbs for daily driving, and crank it up when needed. I have kellys AHP and exhaust, a wideband O2, and 1G mas, and have a HP fuel pump sitting in the box because I've seen no reason to use it yet!. Kelly even took my car out for a spin one night. Link to comment Share on other sites More sharing options...
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