Block config changing octane?
Posted: Wed Mar 09, 2016 12:23 am
A while back I built a 4.1L pushrod 6 to go in to Mustang/Falcon/Torino/Whatever 70's coupe. Based on the dinosaur Australian 250ci I6, it wouldn't fit, so I changed it to a V config. I got annoyed tonight and adjusted the firewall in the LUA to let it fit. Go into sandbox and switch the block from V6 to I6, octane (RON) jumps from 91.9 to 95.5 with no other changes. If I make it an I4, because "why not?", it wants 93.7.
Sure, it'll run on 98 but I don't want that. Maybe I'm just having a cry....maybe there's something more sinister going on...like the oil companies forcing us to buy more expensive fuel.
If anybody can explain this, I'll politely post "thanks much".
Sure, it'll run on 98 but I don't want that. Maybe I'm just having a cry....maybe there's something more sinister going on...like the oil companies forcing us to buy more expensive fuel.
If anybody can explain this, I'll politely post "thanks much".