what octane should i use 89,91.. on my jdm d15b timing set at 16 degrees? only mod i have is aem short ram intake and oem si headers and manifold.

 

87

 

even if i advanced my timing to 16 degrees are you sure?

 

bump

 

anybody els can confirm this if i change my timing do i have to use higher octane?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CivicHP &raquo;</TD></TR><TR><TD CLASS="quote">even if i advanced my timing to 16 degrees are you sure?</TD></TR></TABLE>

What do you mean advance the timing to 16 degrees? How? Stock timing at idle is 16 degrees BTDC. Are you trying to advance it to initial at TDC?

 

If your not pinging don't worry about it. You don't absolutely have to change octane because you changed your timing. Use the lowest Octane you can get away with.

 

don't know but my timing was set at 12 degrees. i just recently found that out and i bump it to 16 degrees. so should i use highr octane or won't matter?