Bill Fowler is an OG BangShifter and the owner of a very mean Mustang. Bill’s car is an interesting study as he regularly drag races it, auto crosses it, and cruises it on the street. It is a true multi-use weapon. The true firepower lies under the hood though, as you’ll see in this video shot at a dyno session where the center of attention was the 598ci, pump gas burning Ford big block that powers the Mustang. We’re not going to give away the ending, but the thing made more than 1,000hp on 93 octane pump gas! Oops, we gave away the ending.
The crazy part about this whole thing is that apparently Chad was involved at some point and nothing blew up or caught on fire. The Yin to Chad’s Yang was our old pal Scott Clark who was on the scene to do the EFI tuning on this Ford mountain of aluminum. Dig the gigantic throttle bodies atop the piece of sculpture pretending to be an intake manifold.
Press play below to see one of the baddest Ford big block pump gas motors in the world!
What coil packs are those? It looks like they have 10 wbo2 sensors. What is the purpose of having them in the collectors if you have them for each cylinder? Was the megasquirt running it?
Kevin, those are wasted spark packs from Lance Nist at Pantera EFI.
There were 10 O2 sensors, 2 that the dyno was logging/displaying, and 8 that fed into a separate Megasquirt-3 that we only used for datalogging individual AFRs. There is an EMS-pro that (megasquirt variant) that runs the engine, but it’s bank-fire EFI. We just used the MS3 and 8 oxygen sensors to observe cylinder AFR balance. There was maybe a 1 – 1.5 point AFR difference between cylinders.
Thanks. How do the EGT’s and AFR readings compare?
EGTs react a lot slower than the AFRs do. AFRs will shift 2-3 places during the typical pull, meaning the leanest cylinder might become the richest cylinder at different points along the AFR curve on a WOT pull.
It’s pretty crazy, and eye opening. Hopefully there will be 8-channel O2 systems available at lower cost soon so people can more easily reach the next level of tuning.
I’m putting a dyno together at home. 8 wide bands aren’t currently in the budget. I do have two. Thermocouple amp circuits are only about $5 ea to make. I’m making bare junction thermocouples so I was hoping they would be a little quicker.
Kevin the EMS-Pro is set up with for batch fire fire in a rough approximation of the firing order, a decision I made early in EFI conversion process. Had we had extra time and dyno budget it would have been fun to try changing up the batch assignments to see if we could have evened out the eight AFR’s throughout the power curve.
Heck yeah bay-bee keep them comnig!