Race Fuel Question
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Da Monee Pit
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Location: Littlefield, Texas
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Race Fuel Question
What do the Initial and final boiling point of a race fuel determine in reality. I'm having some knock issues. The car was tuned on C16
Specification Sheet: VP C-16
Specific Gravity: .735 @ 60°F
Lead: Leaded
Color: Blue
Motor Octane: 117
RVP: 1.85
Oxidation Stability (min.) 1440+
Distillation:
10% evap @ 211.5°F
50% evap @ 213.1°F
90% evap @ 215.8°F
E.P. @ 233.3°F
but I'm running This:
Specific Gravity 0.715
Antiknock Index (R+M)/2 112
RON, Research Octane 114
MON, Motor Octane 110
Reid Vapor Pressure 8
Distillation, ºF
Initial Boiling Point 90
10% Evaporation 155
50% Evaporation 215
90% Evaporation 235
Final Boiling Point 260
Oxidation Stability, Min 1440+
Copper Strip Corrosion No. 1
Existent Gum, mg/100ml 1
Whats the difference?
Also what would this fuel below do differently?
Specification Sheet: VP Blue
Specific Gravity: .717 @ 60°F
Lead: Leaded
Color: Blue
Oxidation Stability (min.) 1440+
Motor Octane: 108
R+M/2: 109
Research Octane: 111
RVP: 7.20
Distillation:
10% evap @ 140.1°F
50% evap @ 214.0°F
90% evap @ 248.4°F
E.P. @ 389.3°F
I'm NOT leaning out. Factory ignition with NGK 105 race plugs @16 psi
Specification Sheet: VP C-16
Specific Gravity: .735 @ 60°F
Lead: Leaded
Color: Blue
Motor Octane: 117
RVP: 1.85
Oxidation Stability (min.) 1440+
Distillation:
10% evap @ 211.5°F
50% evap @ 213.1°F
90% evap @ 215.8°F
E.P. @ 233.3°F
but I'm running This:
Specific Gravity 0.715
Antiknock Index (R+M)/2 112
RON, Research Octane 114
MON, Motor Octane 110
Reid Vapor Pressure 8
Distillation, ºF
Initial Boiling Point 90
10% Evaporation 155
50% Evaporation 215
90% Evaporation 235
Final Boiling Point 260
Oxidation Stability, Min 1440+
Copper Strip Corrosion No. 1
Existent Gum, mg/100ml 1
Whats the difference?
Also what would this fuel below do differently?
Specification Sheet: VP Blue
Specific Gravity: .717 @ 60°F
Lead: Leaded
Color: Blue
Oxidation Stability (min.) 1440+
Motor Octane: 108
R+M/2: 109
Research Octane: 111
RVP: 7.20
Distillation:
10% evap @ 140.1°F
50% evap @ 214.0°F
90% evap @ 248.4°F
E.P. @ 389.3°F
I'm NOT leaning out. Factory ignition with NGK 105 race plugs @16 psi
Last edited by West TX RX-7; 01-28-05 at 03:31 PM.
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