Best fuel for Stock
 

Im bored your bored everybodys bored soo lets discuss fuel.....What fuel do you prefer and why? Sunoco 110, Sunoco 260 GTX,VP C11, Rocket? Has anybody tried Sunoco Surge? Better product,more consistency or easier getting you through fuel check or just faster? Lets hear it!!! Also second question what product do you recommend using to clean out your stock fuel tank getting ready for Stocker use? Thanks

Re: Best fuel for Stock
 

Depends on compression ratio. There are two. Static, which is just the volume of the cylinder and chamber and dynamic, which takes into consideration the valve events while the motor is running. Static never changes and dynamic runs all over the place with different cams based on when the intake valve closes. Pump gas has a lot of junk in it, especially ethanol. You'd probably be burning cash above Sonoco Standard 110 leaded.


Edit: I have two home tracks. Pacific Raceways has Sonoco on pump. Bremerton will be selling Renegade 110 and 112 by the barrel this year. It's located at a municipal airport and some guys hit up on AVgas. Not recommended...

Re: Best fuel for Stock
 

How did you determine this? -Al

Re: Best fuel for Stock
 

[QUOTE=Rose Racing;610797] What fuel do you prefer and why? Sunoco 110, Sunoco 260 GTX,VP C11, Rocket? Has anybody tried Sunoco Surge?[QUOTE]

I just use Blue Sunoco in everything. It's readily available, it (almost) always checks and it's (somewhat) reasonably priced.
I would love to use Sunoco Surge as I have heard good things about it from some buds who have used it but I don't think it's on the approved list.

Re: Best fuel for Stock
 

[QUOTE=Billy Nees;610827][QUOTE=Rose Racing;610797] What fuel do you prefer and why? Sunoco 110, Sunoco 260 GTX,VP C11, Rocket? Has anybody tried Sunoco Surge?What have you heard about Surge? and according to classracer info it is?
Sunoco 260 GTX Green 1.47
Maximal Light Red -0.85
MaxNOS Yellow 0.08
SR18 Yellow -1.10
Standard Light Purple -0.20
Supreme Light Blue -0.70
Surge Light Yellow -0.45

Re: Best fuel for Stock
 

I'll take the second part..
Throw the stock tank away and get a fuel cell, even if you have to buy a used one on Ebay..Much easier to keep clean and to change fuels.

Re: Best fuel for Stock
 

Well I believe there's no one answer to your question asking " what's the best fuel and why". Depends on a large amount of variables specific to each engine, Carburator ( 2 barrel or 4 barrel) compression, timing, manifold heat etc.
Most find a fuel that's available , spend time at TNTs to get a tune up, jet size, timing etc that works for that specific fuel weight and vapor rate. Then they stay with it.
At one TNT session in my low compression motor and low RPM, I ran 92 Octane pump gas. It was faster. High octane generally slows the burn rate. My motor does not like slow burn rates, nor does it like
fuels with higher temperatures required for vaporization.
I would recommend , read the technical specification of each fuel carefully. There are differences.

Steve Teeter STK 6283/6380

Re: Best fuel for Stock
 

Although there might be some general recommendations based on the combination, welcome to the world of Stock and SS: testing, testing, testing. You can't just read an article and/or go by what someone tells you. You want to go fast, better get on the dyno and make a bunch of test&tune runs.

Re: Best fuel for Stock
 

Fuel Cells for Fuel Injected Engines.

Can a Stock Sending Unit to be bolted in it.
Or is an aftermarket fuel pump desired.

Re: Best fuel for Stock
 

I was gonna use an edelbrock 110 mechanical pump

Re: Best fuel for Stock
 

This is an over generalization but usually lower (mechanical) compression ratio engines prefer lower octane, faster burning fuels.

Re: Best fuel for Stock
 

Honestly just my opinion. He is running either a 302 or 351C in a heavy stocker. Race gas is expensive.

Re: Best fuel for Stock
 

How does that matter?! If you want to play this game it's kinda/sorta a necessity, isn't it?

Re: Best fuel for Stock
 

You simply have to test to know for sure. These were four that we tested in a recent dyno session with my 327-275. -Al.

https://i.imgur.com/DCKC9Rg.jpg

Re: Best fuel for Stock
 

I use either C10 or 260GTX when I have the O2 sensor in. I was getting the C10 from the depot in Pasco but they lost the contract to TARR in Auburn. The 260 took a long time to get for some reason. Otherwise I use Sunoco 110, price. Our hometrack (Renegade) just signed Renegade race fuels as official fuel. May be trying that out.

Re: Best fuel for Stock
 

I guess I'm lucky. I can get Renegade by the barrel at Bremerton and 3 grades of Sonoco by the gallon at Pacific. Either way, I'm done with street gas.

Re: Best fuel for Stock
 

Experimented all last year.
Used pump Sonoco high test, VP and Sonoco blends.
Mostly Sunoco because that was what was most available.
Lots of documenting. My engine is an LT1 iron head.
I have O2 sensors and tune with factory pcm..

The best difference was 3 hundredths of a second.
That was a oxygen rich day using Sunoco 110
All were same on muggy hot days.

Prefer the Unleaded Sunoco 260 GTX.
Seemed to do a little better than pump Sunoco.
Since it was 100% gasoline. Then again minimal.

This year will stick with the pump Sunoco.

Re: Best fuel for Stock
 

ERC!!!!