EFI, Alpha-N vs Speed Density fueling Strategies

Ed Wright · 07-19-2014, 09:53 PM

If you tune it correctly, it is easy to dial, and there will be no "sudden performance changes due to excessive fueling corrections". Non issue.

IAT correction, if you put the sensor in the manifold where it belongs, causes absolutely no issues dialing the car. I see guys putting it next to the throttle body. That is wrong. Speed Density needs it in the manifold plenum.

Patterson's COPO is Speed Density, and Closed Loop. Seen it run? It corrects it's self very well.

07-19-2014, 09:53 PM	#29
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 390 Times in 170 Posts	Re: EFI, Alpha-N vs Speed Density fueling Strategies If you tune it correctly, it is easy to dial, and there will be no "sudden performance changes due to excessive fueling corrections". Non issue. IAT correction, if you put the sensor in the manifold where it belongs, causes absolutely no issues dialing the car. I see guys putting it next to the throttle body. That is wrong. Speed Density needs it in the manifold plenum. Patterson's COPO is Speed Density, and Closed Loop. Seen it run? It corrects it's self very well. __________________ Ed Wright 4156 SS/JA