FoMoCoSHO said:My spark limit is at 27 and I'm hitting 26.75 peak. Once summer fuel arrives I suspect we will ride the limit. I'm also not opposed to blending up a bit if necessary. Or dumping a couple of bottles of HEET in the tank.StealBlueSho said:FoMoCoSHO said:Boost is nice but boost with a ton of spark feels incredible.StealBlueSho said:I'm hooked on corn.... 14.5 psi with 25 degrees of advance... knock sensor still wants to add more....no KR anywhere...
Can't get good logs right now, traction is a problem... too cold.
I had so much spark, I couldn't get to my boost target cause it didn't need it to hit demanded torque. The solution was to up the power.
I'm tired of jumping threads to respond to you... lol...
Yea, you were at 27 degrees of spark? Brad seems to think I should be good where I am at since I'm just shy of MBT for my current load... but said depending on my fuel pressure he might want to add more... dunno... like I said... tires cant get warm enough to get a good 0-100 log...
Better life through chemistry....
I can pretty much duplicate both those situations. Got to the spark limit of my E20 tune and wanted to see what was left with a higher blend since FRP was still solid. Got the same verdict from Brad saying i was approaching MBT. There is a ceiling for everything and you reach a point of diminishing returns. Not to mention i've learned that spark can be a very powerful . . . but potentially dangerous thing. And if i was a payed tuner i wouldn't shy away from the idea of backing off of MBT a bit, commanding a little more boost and ultimately making more low end torque instead of being a peak HP queen.
That being said, i still might be curious to make the man give me a 100octane/E20 tune come track season.