Ebay GT45 + 5.9 Magnum + E85 blow thru
As lean as 12.3 on gas scale. E85
Injector duty ~ 60.
The only variable that changed is that I uncapped the exhaust. On the street with the exhaust capped the Fitech has been honoring my set AFR targets. That's the only thing I can think of. Maybe that reduction in exhaust back pressure is changing the learned tables on the fitech and it has to re-learn. My AFR Trim % was a solid 50% throughout the run.
As lean as 12.3 on gas scale. E85
Injector duty ~ 60.
The only variable that changed is that I uncapped the exhaust. On the street with the exhaust capped the Fitech has been honoring my set AFR targets. That's the only thing I can think of. Maybe that reduction in exhaust back pressure is changing the learned tables on the fitech and it has to re-learn. My AFR Trim % was a solid 50% throughout the run.