My name is Drew and I live near Sacramento CA, (please don't hold it against me...lol), I own a high performance automotive shop that deals with primarily late model Mustangs and Vetts. I have been reading up on this site for a month or so after selling my 6.0 and picking up an 08 6.4 I just can't believe the power potential this 6.4's have! The other thing I can't believe is how terrible the fuel milage is.
My previous truck, 6.0 CC/LB with only an Edge would see 17-18mpg's on road trips, usually pulling my car trailor and this new 6.4 is seeing 9.5 empty...ugh. In all fairness the truck does have an 8 inch lift and 37's, but come on. My first PSD was an 2000 7.3 on 40's and never saw milage near this bad.
Anyway, after reading though numerous posts, I think I have put together a decent fix for the fuel milage issue, while of course adding some power at the same time.
What I have on order is the Spartan tuner with 275 tune, 5 inch CAT/DPF delet pipe, 5 inch Magnaflow catback and S&B intake. Hopefully some stuff starts showing up today, as I'm anxious to see what each mod does. I have a chassi dyno here at the shop so the plan is to see what the power increases are with each part, (of course the Spartan and delete pipe will need to go on at the same timeto turn off the DPF functions in the programming).
What I'm wondering is what kind of number you guys have seen from stock 6.4s? As it sits right now my truck has put down a best of 278 RWHP and 594 RWTQ with STD correction factor. I don't know if most of you guys are using uncorrected numbers of SAE, but all the Mustang guys use STD so I didn't change it for the truck. Do these numbers seem right? I'm making the pull starting around 80 MPH and taking it to the speed/rev limiter. Is that the procedure you guys are using to get your numbers?
Sorry for all the questions, I just want to make sure I'm comparing apples to apples when I start adding the mods this week.
Thanks for any input, and I look forward to posting with you guys in the future!
*edit: S&B just showed up*