Built forged 4.6 with trickflow heads and bullet cams
Vortech v2 with downsized to 2.62 pulley; equipped with an 8 rib serpentine belt
60# injectors
Dual ford gt pumps with BAP, FPDMs, and wire upgrade
Large FMIC with Air to water cooling set up.
So in a previous post I was having an issue with belt slippage and now that I moved from a 6 to 8 rib set up the car runs like a dream. So...time to mess with stuff. I dyno run it before and it dropped 450 rwhp and 440 ft lb torque. After 5k RPMs it runs a little lean. I am guessing I need to retune now that I got my belt slip fixed. I did some datalogging and wanted to pick yalls mind.
My LTFTs show a 1.06 and 1.11 on bank 1 and 2 respectively. My FPDCs never peak past 24%, is my fuel set up that efficient???? If my FPDCs are not even peaking past 25% then I could assume that the computer can make up for the .06 and .11 difference effectively and allow me to postpone a dynotune session until the fall?
Also another question, ever since this engine build I have done two dyno session and each time my results where fairly low for the almost 18+ PSI the supercharger is pushing. The confusion is that everything looks fairly well on the charts besides we are now running a little lean due to the fixed belt slip. A few weeks ago I checked my tire pressure...it wasn't a couple PSI low...it was 8 PSI!!!! I promptly aired the tires but this had me wondering if this would have skewed my dyno results.
Thanks for your time guys! Appreciate your responses.
Vortech v2 with downsized to 2.62 pulley; equipped with an 8 rib serpentine belt
60# injectors
Dual ford gt pumps with BAP, FPDMs, and wire upgrade
Large FMIC with Air to water cooling set up.
So in a previous post I was having an issue with belt slippage and now that I moved from a 6 to 8 rib set up the car runs like a dream. So...time to mess with stuff. I dyno run it before and it dropped 450 rwhp and 440 ft lb torque. After 5k RPMs it runs a little lean. I am guessing I need to retune now that I got my belt slip fixed. I did some datalogging and wanted to pick yalls mind.
My LTFTs show a 1.06 and 1.11 on bank 1 and 2 respectively. My FPDCs never peak past 24%, is my fuel set up that efficient???? If my FPDCs are not even peaking past 25% then I could assume that the computer can make up for the .06 and .11 difference effectively and allow me to postpone a dynotune session until the fall?
Also another question, ever since this engine build I have done two dyno session and each time my results where fairly low for the almost 18+ PSI the supercharger is pushing. The confusion is that everything looks fairly well on the charts besides we are now running a little lean due to the fixed belt slip. A few weeks ago I checked my tire pressure...it wasn't a couple PSI low...it was 8 PSI!!!! I promptly aired the tires but this had me wondering if this would have skewed my dyno results.
Thanks for your time guys! Appreciate your responses.