Hi, some backstory on my car:
First run with 2.76 pulley: https://www.svtperformance.com/threads/not-happy-at-dyno.1161444/ On this one, I had 18 degrees of timing and the stock airbox (which choked off a lot).
Second run with 3.1 pulley: https://www.svtperformance.com/thre...no-with-questions-about-my-a-f-ratio.1175083/ Now at 20 degrees of timing and still had the stock airbox.
Today, I went with a Billetflow 2.93 pulley, JLT Ram Air intake, MRT catted H-Pipe, Borla S-Type catback, Metco dual BB idler and engine pullies, Gates RPM stock sized belt, Ford AGSF12M plugs gapped at .032 and SCT tuned with a Pro Racer Package. I still have 20 degrees total timing.
This is the first run
432rwhp and 473rwtq at 13lbs
This is the second run:
438rwhp and 477rwtq at 13.5lbs
This time around, I replaced the stock airbox with a JLT Ram Air intake and I leaned it out a little bit. I also added a Metco aux idler for the belt slip and brought down the plug gap from stock to .032 for the blowout.
First run with 2.76 pulley: https://www.svtperformance.com/threads/not-happy-at-dyno.1161444/ On this one, I had 18 degrees of timing and the stock airbox (which choked off a lot).
Second run with 3.1 pulley: https://www.svtperformance.com/thre...no-with-questions-about-my-a-f-ratio.1175083/ Now at 20 degrees of timing and still had the stock airbox.
Today, I went with a Billetflow 2.93 pulley, JLT Ram Air intake, MRT catted H-Pipe, Borla S-Type catback, Metco dual BB idler and engine pullies, Gates RPM stock sized belt, Ford AGSF12M plugs gapped at .032 and SCT tuned with a Pro Racer Package. I still have 20 degrees total timing.
This is the first run
432rwhp and 473rwtq at 13lbs
This is the second run:
438rwhp and 477rwtq at 13.5lbs
This time around, I replaced the stock airbox with a JLT Ram Air intake and I leaned it out a little bit. I also added a Metco aux idler for the belt slip and brought down the plug gap from stock to .032 for the blowout.
Last edited: