Took my 04 to the dyno yesterday

[16MustangVet]

Headers would make very little difference in the torque this car makes

Maybe not however it will make a difference in the hp esp if you change the injectors and pulley down which in return would gain back whatever tq lost by adding headers still money well spent. I know you've built and had faster cars which still confuses me even more why you refuse to do the simple things to make the most from that xpz cam..........

Ohh and post the numbers it made already!

[GTPpower]

Headers would make very little difference in the torque this car makes

Maybe not however it will make a difference in the hp esp if you change the injectors and pulley down which in return would gain back whatever tq lost by adding headers still money well spent. I know you've built and had faster cars which still confuses me even more why you refuse to do the simple things to make the most from that xpz cam..........

Ohh and post the numbers it made already!

Headers won't make anymore power either.

[GTPpower]

Anyways first pull with the stock airbox:

264hp and 275ish tq

Pulled that off, and stuck a filter on the MAF for the second pull:

266hp and 278tq

It was still running pretty rich, but almost a dead even afr across the board, so I changed my base PE table from 11.1 to 11.3. And, for whatever reason, it went ran richer. Most of the pull was ~10.9afr.

259hp and I don't remember the tq.

I told myself that I would be happy with 260whp before I went in. This is one of those dyno's that break hearts, so I was pretty happy with what I made. It's pretty common for most people to lose 15-20% on this dyno from the dynojet that's in town.

My injectors are at 100% duty cycle at 5100 RPM's, so my next mod will be some bigger ones. I may try to get it to the track first, but I'm sure with that high of a DC, I'm losing a decent amount of power in the upper RPM's.