13.5 and 14:1 compression What octane fuel to use?

103 Octane
109 Octane
112 Octane
114 Octane
116 Octane
All of them By VP Racing Fuel

Any suggestions?

 

we run the C14+ on the high compression 13.5:1+ race cars.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by exospeedAMcrx &raquo;</TD></TR><TR><TD CLASS="quote">we run the C14+ on the high compression 13.5:1+ race cars.</TD></TR></TABLE>
13.5:1 is race car territory? Awwwww Damnit

^^^^^ This guy should know he slangs the liquid cold stuff to us racers. Damn I need race gas how much for c14 again?


I love these threads

 

im bad with the Race Gas prices. i cant remember from the top of my head. I'll check when I get to the shop tomorrow.

we stock VP103, C14+, C16 and Methanol. Price range is about $35-60 for 5 gal pails. i think there was a post i did awhile back with the prices.

 

LOL, 13.5:1 is pretty high bro. I think anything over 103 octane should be fine with no pinging. I'm running 13:1 CR with 100 octane and my car runs smooth, so check experiment with different octanes.

 

to much octane is a bad thing too. I ran 110 in my old 13.6/1cr B series

 

I ran 100 Octane Unleaded on 14:1

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by H2nr &raquo;</TD></TR><TR><TD CLASS="quote">to much octane is a bad thing too. I ran 110 in my old 13.6/1cr B series</TD></TR></TABLE>

Depends on how much advanced ignition timing your running.

 

rocket fuel.....

j/k at least 100

 

how about C12? is that fine for 13.5:1 to 14:1??

 

14.5:1 comp....1gallon of zylene to 3gallons of 91 octane

we run 101 octane from the pump to if ace hardware is closed..lol

we arent running crazy timing