Best fuel for Stock - Page 2

Billy Nees · 03-26-2020, 02:51 PM

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

FireSale · 03-26-2020, 02:54 PM

Quote:

Originally Posted by Alan Nyhus

How did you determine this? -Al

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

Billy Nees · 03-26-2020, 04:56 PM

Quote:

Originally Posted by FireSale

Race gas is expensive.

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

Alan Nyhus · 03-26-2020, 07:23 PM

Quote:

Originally Posted by FireSale

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

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.

Dave Noll · 03-26-2020, 07:41 PM

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.

FireSale · 03-26-2020, 09:10 PM

Quote:

Originally Posted by Dave Noll

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.

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.

Dan Fahey · 03-26-2020, 10:17 PM

Quote:

Originally Posted by Billy Nees

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

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.

Sam The Butcher · 03-28-2020, 06:26 PM

ERC!!!!

03-26-2020, 02:51 PM	#11
Billy Nees VIP Member Join Date: Oct 2002 Location: On a hilltop in Pa. Posts: 4,218 Likes: 3,091 Liked 6,772 Times in 1,519 Posts	Re: Best fuel for Stock This is an over generalization but usually lower (mechanical) compression ratio engines prefer lower octane, faster burning fuels. __________________ Billy Nees 1188 STK, SS Make tech "TECH" again!

03-26-2020, 07:41 PM	#15
Dave Noll Senior Member Join Date: Nov 2007 Location: Div. 6, Eastern, WA Posts: 694 Likes: 2,255 Liked 219 Times in 105 Posts	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. __________________ Dave Noll, E/FS ,L/SA 6526 Last edited by Dave Noll; 03-26-2020 at 07:45 PM.

03-28-2020, 06:26 PM	#18
Sam The Butcher Junior Member Join Date: Jul 2013 Posts: 17 Likes: 23 Liked 6 Times in 5 Posts	Re: Best fuel for Stock ERC!!!!