Now that the Coyote was running on all 8-cylinders, I chose to take the car to a local tuner “Shaun Perry” at AED in Cameron Park, CA. Shaun is a stand-up guy, and well known in the coyote ecosystem. His shop is about 12 miles from my house, and he helped us diagnose the injector issue. I had a Friday afternoon appointment and he was excellent to work with!
I had to get an SCT tuner that Shaun could use to store the tunes for the car. I opted for the SCT x4 7015p which is an unlocked tuner, needed for custom tunes. It’s hard to get an unlocked tuner in CA due to smog laws, obviously there are ways, but since this car is registered as a 1965 model, the only emissions needed is the closed PCV system.
Shaun ran the car a few times on the dyno, and was getting some false-knock readings – we found that the exhaust bolts were a little loose and creating a ‘false knock’ with the rattle. He adjusted again and rand it a few more times. The power was down as to what he expected, we determined a few things.
- The catalytic converters (not needed in the build) were a bit stinky, and we think they were damaged by the Jet-Hot process a while back
- the GASN Touring sidepipes, while they sound great – were quite restrictive in flow… the chambered muffler inside is about 1.5-2″ as compared to a wide open side pipe of 4-5″
Sadly, I figured what would need to be done a while ago. The upgraded headers with catalytic converters were damaged, so they were gutted. It’s money down the drain, but at this point I want a car that runs well, and after the dyno tune – there’s no gas smell anyways!
Next, we had a little extra time to unbolt the sidepipes and clear out the cats, everything vacuumed up and ready to rock again. Ran a few more runs, no false knock and the power was up 17HP. Ended up at 413HP to the wheels!!! Here’s the video!
Dyno Time!
Overall, I’m very happy to break the 400HP club, this will be way too much power anyways :) Went for a little spin in the biz park before reloading onto the trailer. Success feels awesome!!
