That makes me happy that someone uses the spreadsheet haha. The VE numbers from the engine are a wild *** guess, but could be inferred if you had engine dyno data to calibrate against. This only matters if you put in some crazy boost combos that are above 25psi or so. The blower VE curve is also based on what I could find for a tvs2300 at the time I think, so its a bit out of date compared to a 2650 or LSA.

Basically itll get you close, but I usually step back and squint at the boost column and thatll be about right, or just look at the 4000-5000rpm values since that is where peak engine VE usually happens on these engines regardless of the cam.

 

can't help on engine VE numbers (though they've always been close for any stock long block LS engine i've ran numbers on), but here's the compressor map i've always used for the cathedral head Magnuson 2300... if you're so inclined to massage your calculations.

 

e85 is mainly just "because I can"
I'll have enough fuel pump and will already have flex fuel sensor, so why not

If the consensus is that on 6-8 psi this thing will make 450, that sounds like a good starting point and I can always adjust from there. I'll start with the underdriven setup and a 3.2 front (what it has now)

Thanks for the input guys, much appreciated

 

That is what I used when I made the curve in there now

 

right on to you both

 

Just bought my 08 Colorado back previously sold to my grandson now with 80k. Sub'd on this for the future if I ever get my 16 done. E is incredible imo. Congrats on a nice ride! Gonna keep the 4l60?