Stocker Low Compression Approved Fuel.

SDT1DYI · 08-11-2018, 07:57 PM

Low compression SBC stocker motor, would like to run lowest Octane approved fuel. What would everyone suggest? 92 unleaded Pump gas is not legal at a Divisional Lucas Oil race ?

6380 STK Steve Teeter.

SDT1DYI · 08-11-2018, 08:39 PM

Forgot to add, leaded or unleaded for Low compression.???

6380 STK.

gsa612 · 08-11-2018, 09:47 PM

First choice VP C-11.2nd Sunoco standard 110. Both are leaded fuels.Pump gas is not legal at a NHRA divisional,nat.open or national event. gsa612

Bill Bagley · 08-12-2018, 09:25 AM

Quote:

Originally Posted by gsa612

First choice VP C-11.2nd Sunoco standard 110. Both are leaded fuels.Pump gas is not legal at a NHRA divisional,nat.open or national event. gsa612

Same recommendation. I've tried both on the dyno and saw no discernible difference.

Adger Smith · 08-12-2018, 09:46 AM

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

Dan Fahey · 08-12-2018, 12:22 PM

Look at
Sunoco 260 GTX Unleaded
VP C10 or VP C20 both Unleaded.
All three are NHRA legal.

D

GTX5877 · 08-12-2018, 12:44 PM

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.

gsa612 · 08-12-2018, 01:28 PM

What year,cubic in,comp.ratio is the SBC ?. gsa612

gsa612 · 08-12-2018, 02:12 PM

Quote:

Originally Posted by Adger Smith

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

When Pete had his 80 305 we dynoed Sunoco110,C12,C11 and even tried C25 ($20+ gal.at the time).The C11 was worth about 5,it liked to be 1 step richer on the sec. rod. over the C12 and the 110.The C25 came around after changing timing, jets,rods,moving the cam.In the end it showed a couple of HP over the C11.Some guys were seeing close to 10 on BBC.On the SBC the minimal gains did not justify the cost.So C11 it was! gsa612.

ron mattson · 08-12-2018, 02:39 PM

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.

08-11-2018, 07:57 PM	#1
SDT1DYI Member Join Date: Nov 2016 Location: Indianola Washington Posts: 401 Likes: 0 Liked 453 Times in 146 Posts	Stocker Low Compression Approved Fuel. Low compression SBC stocker motor, would like to run lowest Octane approved fuel. What would everyone suggest? 92 unleaded Pump gas is not legal at a Divisional Lucas Oil race ? 6380 STK Steve Teeter.

08-11-2018, 08:39 PM	#2
SDT1DYI Member Join Date: Nov 2016 Location: Indianola Washington Posts: 401 Likes: 0 Liked 453 Times in 146 Posts	Re: Stocker Low Compression Approved Fuel. Forgot to add, leaded or unleaded for Low compression.??? 6380 STK.

08-11-2018, 09:47 PM	#3
gsa612 Senior Member Join Date: Jan 2008 Location: 100th Meridian Posts: 569 Likes: 116 Liked 280 Times in 139 Posts	Re: Stocker Low Compression Approved Fuel. First choice VP C-11.2nd Sunoco standard 110. Both are leaded fuels.Pump gas is not legal at a NHRA divisional,nat.open or national event. gsa612 Last edited by gsa612; 08-11-2018 at 09:58 PM.

08-12-2018, 09:46 AM	#5
Adger Smith VIP Member Join Date: Dec 2001 Location: Texarkana Ark/TX Posts: 2,446 Likes: 575 Liked 880 Times in 311 Posts	Re: Stocker Low Compression Approved Fuel. Bill, Is there a jetting or timing difference in the two fuels? __________________ Adger Smith (Former SS)

08-12-2018, 12:22 PM	#6
Dan Fahey VIP Member Join Date: Oct 2008 Posts: 2,127 Likes: 1,084 Liked 184 Times in 113 Posts	Re: Stocker Low Compression Approved Fuel. Look at Sunoco 260 GTX Unleaded VP C10 or VP C20 both Unleaded. All three are NHRA legal. D

08-12-2018, 12:44 PM	#7
GTX5877 Junior Member Join Date: Jun 2005 Location: Albert Lea, MN Posts: 52 Likes: 3 Liked 20 Times in 9 Posts	Re: Stocker Low Compression Approved Fuel. 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.

08-12-2018, 01:28 PM	#8
gsa612 Senior Member Join Date: Jan 2008 Location: 100th Meridian Posts: 569 Likes: 116 Liked 280 Times in 139 Posts	Re: Stocker Low Compression Approved Fuel. What year,cubic in,comp.ratio is the SBC ?. gsa612

08-12-2018, 02:39 PM	#10
ron mattson Member Join Date: Nov 2005 Location: cloquet mn Posts: 464 Likes: 17 Liked 66 Times in 29 Posts	Re: Stocker Low Compression Approved Fuel. 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 Mattson 5015 STK