Rico

My car is still a factory LT-1 350, the stock program reads 44.041 cylinder size, but most peoples cylinder size reads 47.895 when they have sent them to me. I'm reading them in LT-1 Edit, what's going on here, could someone fill me in.

Thanks

...Rich

TriPinTaZ

47.875 multiplied by 8 cylinders equals 383 cubic inches. if you a 350ci LT1 ( stock displacement ) then 44.041 is correct.

rskrause

BTW: this is one of the basic parameters I use to tune if there is a general lean or rich condition. It's OK to "lie" to the PCM. My current tune has a cylinder size of 60ci (for my 383).

Rich Krause

95Blackhawk

Rich,

U seem to be a man of knowledge. Why would you choose the cylinder size to tune for lean/rich as compared to your injectors or for that matter your MAF tables or even your injector offset vs. voltage?

Just want ideas for myself.

Ben

Chris B

From my experience the cylinder size doesn't make that big a difference in a MAF car - in a speed density vehicle it does though.

Chris