VP to Sunoco reference

Doug Domm · 02-07-2014, 03:10 PM

Is there a VP to Sunoco equivalency reference chart anywhere and typical tune changes between fuels?

VanPelt · 02-07-2014, 06:17 PM

http://www.smithtex.com/racing/fuelcomp.html

Doug Domm · 02-08-2014, 12:39 AM

Excellent reference chart. Thank you

njk53 · 02-11-2014, 09:24 AM

Is VP C-10 Leaded or Unleaded?

Rsmith38 · 02-11-2014, 09:35 AM

C-10 is unleaded. (Now C-9 also unleaded)

njk53 · 02-12-2014, 10:44 AM

Is there a leaded fuel with a lower octane (100 or less) out there that is NHRA Approved?

jmarkaudio · 02-12-2014, 03:58 PM

What you want to pay attention to is the SG and RVP of the different fuels. Similar specs on both will usually need similar jetting and perform close. If either deviate you will likely need to make changes. As far as lower octane than 100, what are you looking to lower octane for?

njk53 · 02-13-2014, 09:25 AM

I have a 9:25.1 Compression Ratio Motor. It would run much more efficiently on a lower octane fuel than 110.

Mike Croley · 02-13-2014, 12:18 PM

The best way to get the specs for race fuel comparisons is from each manufacturers web site. The specs change fairly often. The above referenced chart is out of date I believe. You'll want to pay close attention to the Motor Octane, and the RVP number.
Most companies also have a crossover on their web sites to make it easier to switch between brands.
And race gas for lower compression engines is available from a number of sources. Sunoco, Renegade, VP all make race gas for lower CR engines.

Dave Ribeiro · 02-13-2014, 12:35 PM

Mike,

Thanks, for the info ... What low CR gas is approved for NHRA /IHRA & what would you recommend for an 8 to 1 ???

02-07-2014, 03:10 PM	#1
Doug Domm Member Join Date: Apr 2006 Location: canada Posts: 251 Likes: 29 Liked 84 Times in 21 Posts	VP to Sunoco reference Is there a VP to Sunoco equivalency reference chart anywhere and typical tune changes between fuels? Last edited by Doug Domm; 02-07-2014 at 05:18 PM. Reason: Remove post

02-07-2014, 06:17 PM	#2
VanPelt Member Join Date: May 2008 Location: New Mexico Posts: 148 Likes: 22 Liked 0 Times in 0 Posts	Re: VP to Sunoco reference http://www.smithtex.com/racing/fuelcomp.html

02-08-2014, 12:39 AM	#3
Doug Domm Member Join Date: Apr 2006 Location: canada Posts: 251 Likes: 29 Liked 84 Times in 21 Posts	Re: VP to Sunoco reference Excellent reference chart. Thank you

02-11-2014, 09:24 AM	#4
njk53 Senior Member Join Date: Jul 2007 Location: East China, MI Posts: 504 Likes: 0 Liked 0 Times in 0 Posts	Re: VP to Sunoco reference Is VP C-10 Leaded or Unleaded? __________________ Nelson Kowal Stock 345

02-11-2014, 09:35 AM	#5
Rsmith38 Member Join Date: Mar 2011 Posts: 186 Likes: 0 Liked 28 Times in 15 Posts	Re: VP to Sunoco reference C-10 is unleaded. (Now C-9 also unleaded)

02-12-2014, 10:44 AM	#6
njk53 Senior Member Join Date: Jul 2007 Location: East China, MI Posts: 504 Likes: 0 Liked 0 Times in 0 Posts	Re: VP to Sunoco reference Is there a leaded fuel with a lower octane (100 or less) out there that is NHRA Approved? __________________ Nelson Kowal Stock 345

02-12-2014, 03:58 PM	#7
jmarkaudio Junior Member Join Date: Apr 2008 Posts: 83 Likes: 0 Liked 0 Times in 0 Posts	Re: VP to Sunoco reference What you want to pay attention to is the SG and RVP of the different fuels. Similar specs on both will usually need similar jetting and perform close. If either deviate you will likely need to make changes. As far as lower octane than 100, what are you looking to lower octane for?

02-13-2014, 09:25 AM	#8
njk53 Senior Member Join Date: Jul 2007 Location: East China, MI Posts: 504 Likes: 0 Liked 0 Times in 0 Posts	Re: VP to Sunoco reference I have a 9:25.1 Compression Ratio Motor. It would run much more efficiently on a lower octane fuel than 110. __________________ Nelson Kowal Stock 345

02-13-2014, 12:18 PM	#9
Mike Croley Member Join Date: Apr 2010 Posts: 182 Likes: 0 Liked 0 Times in 0 Posts	Re: VP to Sunoco reference The best way to get the specs for race fuel comparisons is from each manufacturers web site. The specs change fairly often. The above referenced chart is out of date I believe. You'll want to pay close attention to the Motor Octane, and the RVP number. Most companies also have a crossover on their web sites to make it easier to switch between brands. And race gas for lower compression engines is available from a number of sources. Sunoco, Renegade, VP all make race gas for lower CR engines.

02-13-2014, 12:35 PM	#10
Dave Ribeiro VIP Member Join Date: Sep 2002 Location: Williamsburg, Va.---USA Posts: 1,827 Likes: 1,612 Liked 56 Times in 27 Posts	Re: VP to Sunoco reference Mike, Thanks, for the info ... What low CR gas is approved for NHRA /IHRA & what would you recommend for an 8 to 1 ??? __________________ Dave Ribeiro 1033 STK Last edited by Dave Ribeiro; 02-13-2014 at 02:15 PM.