i found this info the other day, and if its right on, its a good starting point for people looking into using e85:
info originally posted by dark horse from dsmtuners:
I'm posting this because I keep seeing so many questions about running E85. "Will _____ size injectors allow me to run ______ turbo on E85?" Here is a guide that will answer all of your questions.
This guide takes the following into account.
1. All injectors flow exactly what they say they will. IE: 720cc injectors flow exactly 720cc.
2. All injectors flow exactly the same. IE: All injectors are perfectly matched (which is impossible in the real world)
3. Specific gravity of E85 is 0.79.
4. All calculations use a gasoline AFR of 12:1 - this equates to 8.05:1 in E85 #'s. Meaning - your wideband will read 12:1, but your actual AFR will be 8.05:1. Your wideband doesn't care what type of fuel you use, and will display numbers based on gasoline stohic (14.7:1).
With that in mind, on to the numbers.
390cc @ 100% IDC will support 21.80 lbs/min. Global Correction: +50.00%
390cc @ 80% IDC will support 17.44 lbs/min
450cc @ 100% IDC will support 25.15 lbs/min. Global Correction: +30.00%
450cc @ 80% IDC will support 20.12 lbs/min
550cc @ 100% IDC will support 30.74 lbs/min. Global Correction: +6.36%
550cc @ 80% IDC will support 24.59 lbs/min
580cc @ 100% IDC will support 32.42 lbs/min. Global Correction: +0.86%
580cc @ 80% IDC will support 25.94 lbs/min
650cc @ 100% IDC will support 36.33 lbs/min. Global Correction: -10.00%
650cc @ 80% IDC will support 29.07 lbs/min
660cc @ 100% IDC will support 36.89 lbs/min. Global Correction: -11.36%
660cc @ 80% IDC will support 29.51 lbs/min
680cc @ 100% IDC will support 38.01 lbs/min. Global Correction: -13.97%
680cc @ 80% IDC will support 30.41 lbs/min
720cc @ 100% IDC will support 40.24 lbs/min. Global Correction: -18.75%
720cc @ 80% IDC will support 32.20 lbs/min
750cc @ 100% IDC will support 41.92 lbs/min. Global Correction: -22.00%
750cc @ 80% IDC will support 33.54 lbs/min
780cc @ 100% IDC will support 43.60 lbs/min. Global Correction: -25.00%
780cc @ 80% IDC will support 34.88 lbs/min
850cc @ 100% IDC will support 47.51 lbs/min. Global Correction: -31.18%
850cc @ 80% IDC will support 38.01 lbs/min
880cc @ 100% IDC will support 49.19 lbs/min. Global Correction: -33.52%
880cc @ 80% IDC will support 39.35 lbs/min
950cc @ 100% IDC will support 53.10 lbs/min. Global Correction: -38..42%
950cc @ 80% IDC will support 42.48 lbs/min
1000cc @ 100% IDC will support 55.89 lbs/min. Global Correction: -41.50%
1000cc @ 80% IDC will support 44.72 lbs/min
1150cc @ 100% IDC will support 64.28 lbs/min. Global Correction: -49.13%
1150cc @ 80% IDC will support 51.42 lbs/min
1200cc @ 100% IDC will support 67.07 lbs/min. Global Correction: -51.25%
1200cc @ 80% IDC will support 53.66 lbs/min
1600cc @ 100% IDC will support 89.43 lbs/min. Global Correction: -63.44%
1600cc @ 80% IDC will support 71.55 lbs/min
1850cc @ 100% IDC will support 103.41 lbs/min. Global Correction: -68.38%
1850cc @ 80% IDC will support 82.72 lbs/min
info originally posted by dark horse from dsmtuners:
I'm posting this because I keep seeing so many questions about running E85. "Will _____ size injectors allow me to run ______ turbo on E85?" Here is a guide that will answer all of your questions.
This guide takes the following into account.
1. All injectors flow exactly what they say they will. IE: 720cc injectors flow exactly 720cc.
2. All injectors flow exactly the same. IE: All injectors are perfectly matched (which is impossible in the real world)
3. Specific gravity of E85 is 0.79.
4. All calculations use a gasoline AFR of 12:1 - this equates to 8.05:1 in E85 #'s. Meaning - your wideband will read 12:1, but your actual AFR will be 8.05:1. Your wideband doesn't care what type of fuel you use, and will display numbers based on gasoline stohic (14.7:1).
With that in mind, on to the numbers.
390cc @ 100% IDC will support 21.80 lbs/min. Global Correction: +50.00%
390cc @ 80% IDC will support 17.44 lbs/min
450cc @ 100% IDC will support 25.15 lbs/min. Global Correction: +30.00%
450cc @ 80% IDC will support 20.12 lbs/min
550cc @ 100% IDC will support 30.74 lbs/min. Global Correction: +6.36%
550cc @ 80% IDC will support 24.59 lbs/min
580cc @ 100% IDC will support 32.42 lbs/min. Global Correction: +0.86%
580cc @ 80% IDC will support 25.94 lbs/min
650cc @ 100% IDC will support 36.33 lbs/min. Global Correction: -10.00%
650cc @ 80% IDC will support 29.07 lbs/min
660cc @ 100% IDC will support 36.89 lbs/min. Global Correction: -11.36%
660cc @ 80% IDC will support 29.51 lbs/min
680cc @ 100% IDC will support 38.01 lbs/min. Global Correction: -13.97%
680cc @ 80% IDC will support 30.41 lbs/min
720cc @ 100% IDC will support 40.24 lbs/min. Global Correction: -18.75%
720cc @ 80% IDC will support 32.20 lbs/min
750cc @ 100% IDC will support 41.92 lbs/min. Global Correction: -22.00%
750cc @ 80% IDC will support 33.54 lbs/min
780cc @ 100% IDC will support 43.60 lbs/min. Global Correction: -25.00%
780cc @ 80% IDC will support 34.88 lbs/min
850cc @ 100% IDC will support 47.51 lbs/min. Global Correction: -31.18%
850cc @ 80% IDC will support 38.01 lbs/min
880cc @ 100% IDC will support 49.19 lbs/min. Global Correction: -33.52%
880cc @ 80% IDC will support 39.35 lbs/min
950cc @ 100% IDC will support 53.10 lbs/min. Global Correction: -38..42%
950cc @ 80% IDC will support 42.48 lbs/min
1000cc @ 100% IDC will support 55.89 lbs/min. Global Correction: -41.50%
1000cc @ 80% IDC will support 44.72 lbs/min
1150cc @ 100% IDC will support 64.28 lbs/min. Global Correction: -49.13%
1150cc @ 80% IDC will support 51.42 lbs/min
1200cc @ 100% IDC will support 67.07 lbs/min. Global Correction: -51.25%
1200cc @ 80% IDC will support 53.66 lbs/min
1600cc @ 100% IDC will support 89.43 lbs/min. Global Correction: -63.44%
1600cc @ 80% IDC will support 71.55 lbs/min
1850cc @ 100% IDC will support 103.41 lbs/min. Global Correction: -68.38%
1850cc @ 80% IDC will support 82.72 lbs/min
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