CLASS RACER FORUM - View Single Post - EFI, Alpha-N vs Speed Density fueling Strategies

Ed Wright · 03-08-2014, 10:40 PM

I run mine in Speed Desity. I consider AlphaN the easy button. They can tune it on the dyno, and ship it, leaving adjusting for conditions to the ownner.
Set the break points in the V.E. table right and once you see the Baro that causes it to reference a different row in the V.E. table and get the fueling right you won't have to change anything when you get in that air next time. First time I went to Great Bend KS mine was running 4th row down. Never had before (higher elevation) so dialed it in. Next time I went there it was fine. Once you get it dialed in, you seldom have to change anything for weather changes. I have never run mine in AlphaN. Been Speed Density for ever.

Tony, why do you think the air/fuel would be changing going down the track? I don't get your reasoning.

03-08-2014, 10:40 PM	#3
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 389 Times in 168 Posts	Re: EFI, Alpha-N vs Speed Density fueling Strategies I run mine in Speed Desity. I consider AlphaN the easy button. They can tune it on the dyno, and ship it, leaving adjusting for conditions to the ownner. Set the break points in the V.E. table right and once you see the Baro that causes it to reference a different row in the V.E. table and get the fueling right you won't have to change anything when you get in that air next time. First time I went to Great Bend KS mine was running 4th row down. Never had before (higher elevation) so dialed it in. Next time I went there it was fine. Once you get it dialed in, you seldom have to change anything for weather changes. I have never run mine in AlphaN. Been Speed Density for ever. Tony, why do you think the air/fuel would be changing going down the track? I don't get your reasoning. __________________ Ed Wright 4156 SS/JA Last edited by Ed Wright; 03-08-2014 at 10:44 PM.