Stocker Low Compression Approved Fuel.

[Bill Bagley]

Originally Posted by Adger Smith

Bill,
Is there a jetting or timing difference in the two fuels?

It was at the tail end of the dyno session and we didn't compare any farther than switching from one fuel to the other, so I don't have an answer to that one.

[Ed Wright]

Originally Posted by ron mattson

C11 works well, better than the older
Sunoco supreme, have not tried the newer
unleaded fuels, c25 was a tick quicker but
Expensive as stated earlier would only use for class
or heads up.

Ron, which engine do you run?

[ron mattson]

I ran the 255/350, 295/350, 278/350and now the 1970
lt1 360-325/350

[e vassar]

Renegade R11 is a good option also.

[Dan Fahey]

Originally Posted by GTX5877

Sunoco tech recommends Sunoco 'Surge' as their best low compression fuel at 105 octane over 260 GTX fuel. It is now on the the approved fuel list. Supposed to have some better qualities than 260GTX.

Technical Details 260 GTX
Color: Green
Octane (R+M)/2: 98
Research Octane: 103
Motor Octane: 93
Specific Gravity: 0.762
Weight (lbs/gallon): 6.3
Reid Vapor Pressure (PSI): 4.7
10% Evaporation (°F): 182
50% Evaporation (°F): 220
90% Evaporation (°F): 227
Stoichiometric Air/Fuel Ratio: 14.6
Oxygen (weight%): 0
Ethanol (volume%): 0
H/C Ratio: 1.76
Lower Heating Value (Btu/Gallon): 115800
Lower Heating Value (Btu/Pound): 18240
Dielectric Constant: 1.6
Leaded: No

[Dan Fahey]

Originally Posted by GTX5877

Sunoco tech recommends Sunoco 'Surge' as their best low compression fuel at 105 octane over 260 GTX fuel. It is now on the the approved fuel list. Supposed to have some better qualities than 260GTX.

Technical Details Sonoco Surge

Color: Light Yellow
Octane (R+M)/2: 105
Research Octane: 109
Motor Octane: 101
Specific Gravity: 0.714
Weight (lbs/gallon): 5.9
Reid Vapor Pressure (PSI): 8.0
Initial Boiling Point (°F): 90
10% Evaporation (°F): 125
50% Evaporation (°F): 210
90% Evaporation (°F): 225
Final Boiling Point (°F): 250
Stoichiometric Air/Fuel Ratio: 14.9
Oxygen (weight%): 0
Ethanol (volume%): 0
H/C Ratio: 2.09
Lower Heating Value (Btu/Gallon): 111,975
Lower Heating Value (Btu/Pound): 18,650
Dielectric Constant: -0.2
Leaded: Yes

[SDT1DYI]

Some good info to work with. Ran the new 350 2 barrel combo on pump gas last weekend. 1/8 mile hits only. Divisionals this weekend . Will have C11 in It. Interested in comparing 1/8 performance of 3.50$ gas to 15.00$ race gas. Probably faster on pump gas.

STK. 6380.

[1347]

Call Jason @ Insinger fuels, he will give you the lowdown on the Surge and any other Sunoco fuels, I have been doing some testing with the Surge for them and he has my info and others on the results.
Jason 5706376081

Duane

[ss3011]

Originally Posted by SDT1DYI

Some good info to work with. Ran the new 350 2 barrel combo on pump gas last weekend. 1/8 mile hits only. Divisionals this weekend . Will have C11 in It. Interested in comparing 1/8 performance of 3.50$ gas to 15.00$ race gas. Probably faster on pump gas.

STK. 6380.

Be careful , Flush your fuel system out with race gas , or you could possibly get bounced at fuel check .

[Dan Fahey]

An you mix race gas...so long as it done now have ethanol.
Not all tracks carry the same fuel
D