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11-02-2007, 07:03 AM
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#1 |
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Senior Member
Join Date: Oct 2002
Location: Mahopac, NY
Posts: 666
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Re: Gas question??
Greg, depending on the jets, you may only have to change the rods? What do you have in there currently for rods and jets?
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Joe DeMarzo 1317 STK |
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11-02-2007, 07:54 PM
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#2 |
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Member
Join Date: Aug 2004
Location: Central Illinois
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Re: Gas question??
Greg....if you can find any specs on Sunoco fuels, look for the RVP (Reid Vapor Pressure) and specific gravity to make adjustments. I've had no luck finding data on Sunoco fuels although it must be somewhere.
VP's C12 is more dense and higher RVP than C11 making jetting down necessary. Also,if you choose C11 and run it through the summer, try a cool can with it...,you'll be surprised. |
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11-02-2007, 10:23 PM
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#3 |
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Senior Member
Join Date: Jun 2006
Posts: 541
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Re: Gas question??
so low compression big block what fuel is best,c11,c12, or what? or is it all in jetting no diff in fuel.
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11-02-2007, 10:25 PM
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#4 |
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VIP Member
Join Date: Dec 2001
Location: Texarkana Ark/TX
Posts: 2,446
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Re: Gas question??
Go here: http://www.smithwholesalers.com/ & click on Race Fuels Some of the specs might be a little out of date, but it will give you the idea. Most fuel specs are listed in the chart.
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Adger Smith (Former SS) Last edited by Adger Smith; 11-02-2007 at 10:28 PM. Reason: S/P |
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11-03-2007, 12:47 AM
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#5 |
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Junior Member
Join Date: Nov 2006
Location: Illinois
Posts: 39
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Re: Gas question??
Car went 12.75 first time out ever in extreme bracket mode. Then 12.71 at U.S. Nats. Since what ever you have done to the car has obviously slowed it down, the obvious course of action would be to go back to how it was when you took possession of it. Fuel or anything else. DUH!
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11-03-2007, 06:28 AM
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#6 |
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Member
Join Date: Apr 2006
Location: Grand Island FL.
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Re: Gas question??
Greg ran sunco purple for ever went somewhere to race had no sunco had to drain and use c-12 car went from 13.85 to 13.55 i know it sounds crazy but it did happen thought it was a fluke so i went back to sunco and went 13.79 went back to c-12 and went 13.60 maybe it is just right for my motor but it is the truth this just happend in april of 06
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Sean Ward NHRA s/ss/comp#2882 SW4 MOTORSPORTS |
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11-03-2007, 09:58 AM
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#7 |
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Member
Join Date: Aug 2004
Location: Central Illinois
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Re: Gas question??
Junior...changes to the induction system, different heads, cam or whatever changes the kinetic energy of the air/fuel mixture. This energy helps vaporize the fuel. Fuel has its own ability to vaporize (different reid pressures). Then you race in various weather conditions.
Bottom line...fuel choice can be a moving target and one to constantly flog for your combo. If you make a change, start over. |
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11-03-2007, 05:49 PM
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#8 |
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VIP Member
Join Date: Jan 2003
Location: jackson
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Re: Gas question??
the reason for running sunoco is it's 3 miles from the house & it's $5.49 a gal! VP their's no place around here that has it!! Plus in the seven years I've been running stock it's never failed tec.
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Greg Fulk 308 308X P/SA "ALL AMERICAN" |
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11-05-2007, 01:18 PM
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#9 |
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Junior Member
Join Date: Mar 2003
Location: owensboro ky
Posts: 41
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Re: Gas question??
What about Sunoco Supreme (blue) vs C-12 anyone done any testing?
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Neal Noffsinger 3126 STK |
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