To much octane??

chevy620 · 04-14-2009, 08:03 PM

If I run 114 Octane (Rocket 114) in a 350 LT-1 efi Stocker will it be slower or unaffected by the additional octane?
I hate carrying two grades (because one of the engines requires 114) but if it is necessary I will. Just wondering if any of you guys have tried going from C12 to something that is rated higher??

Thanks for your input, appreciate it.

mannymen · 04-14-2009, 08:29 PM

The SG for the fuel you're using is important

chevy620 · 04-15-2009, 07:19 PM

Should I look for similar Spec Grav to a fuel like C12?

Thanks for the help so far.

Robert Kelliher · 04-16-2009, 09:11 AM

Higher octane fuel will usually cause you to run slower,because high octane fuel burns slower.Have tested several fuels and found the lower the better. just don't go too low, which can cause detonation

Jim Helsel · 04-20-2009, 10:39 AM

You could get away with running Rockett 111 in both cars. The specific gravity between the 111 and the 114 are the same(.726 vs .727) . We use Rockett in all of our cars and the 111 is some good *****.

Bob Bender · 04-20-2009, 11:51 AM

The Rockett 111 is great in my stocker and always checks........

All 4400 lbs. of it.

greg fulk · 04-20-2009, 06:22 PM

this my be wrong BUT what I was told the more octane the more timing you need to run...? if this is true the n all you would have to do is some test & tune with the new fuel an timing.

04-14-2009, 08:03 PM	#1
chevy620 Banned Join Date: Mar 2009 Posts: 188 Likes: 0 Liked 0 Times in 0 Posts	To much octane?? If I run 114 Octane (Rocket 114) in a 350 LT-1 efi Stocker will it be slower or unaffected by the additional octane? I hate carrying two grades (because one of the engines requires 114) but if it is necessary I will. Just wondering if any of you guys have tried going from C12 to something that is rated higher?? Thanks for your input, appreciate it.

04-14-2009, 08:29 PM	#2
mannymen Senior Member Join Date: Apr 2003 Posts: 728 Likes: 5 Liked 13 Times in 7 Posts	Re: To much octane?? The SG for the fuel you're using is important __________________ N/A

04-15-2009, 07:19 PM	#3
chevy620 Banned Join Date: Mar 2009 Posts: 188 Likes: 0 Liked 0 Times in 0 Posts	Re: To much octane?? Should I look for similar Spec Grav to a fuel like C12? Thanks for the help so far.

04-16-2009, 09:11 AM	#4
Robert Kelliher Junior Member Join Date: Dec 2006 Location: New Hampshire Posts: 18 Likes: 0 Liked 0 Times in 0 Posts	Re: To much octane?? Higher octane fuel will usually cause you to run slower,because high octane fuel burns slower.Have tested several fuels and found the lower the better. just don't go too low, which can cause detonation

04-20-2009, 10:39 AM	#5
Jim Helsel Junior Member Join Date: Nov 2008 Posts: 70 Likes: 0 Liked 0 Times in 0 Posts	Re: To much octane?? You could get away with running Rockett 111 in both cars. The specific gravity between the 111 and the 114 are the same(.726 vs .727) . We use Rockett in all of our cars and the 111 is some good *****.

04-20-2009, 11:51 AM	#6
Bob Bender VIP Member Join Date: Jan 2009 Location: Maryland Posts: 1,733 Likes: 1,596 Liked 459 Times in 90 Posts	Re: To much octane?? The Rockett 111 is great in my stocker and always checks........ All 4400 lbs. of it. __________________ Bob Bender 144 O/SA 2010-2012 National Record Holder

04-20-2009, 06:22 PM	#7
greg fulk VIP Member Join Date: Jan 2003 Location: jackson Posts: 1,165 Likes: 0 Liked 5 Times in 3 Posts	Re: To much octane?? this my be wrong BUT what I was told the more octane the more timing you need to run...? if this is true the n all you would have to do is some test & tune with the new fuel an timing. __________________ Greg Fulk 308 308X P/SA "ALL AMERICAN"