Boss5.0

11.62@117 Boss5.0 150 nos.4.10gears headers AFE cai Boss intake GT cams drag radials circle d converter.
12.66@107 all motor 2011 2wd rcsb

Rainsfather

14.3@ 95, RainsFather, RCSB, 2wd, 3.31, aFe cai, cherry bomb extreme 3" muffler, 5Star 91 tune

Joewee3.5

This thread may answer some questions as to why some tune only rcsb trucks run low 13s at 100+ and some like the above truck run 14s @ 95.

02reaper

iTrader: (2)

What are your thoughts on the reason?

bobkyle2

Welllll looks like boss5.0 just owned errrone

azdriver

I would think the gearing plays a factor. My truck has the optional 3.55 axle. Even with just a Roush intake, WOT downshift to first scratches the tires and the one/two shift will also scratch the tires. I am running 265/50-20's. With the Roush supercharger I am sure it would take a pretty well modded Lightning to out run it.....

aai

edit:

aai

I've seen that truck lay it down at MIR during a mustang shootout this past fall

Joewee3.5

My thoughts are that the variance in tuned 5.0 times is about as wide as the mpg with the Ecoboost. I thought maybe 5.0 guys might have a clue.

Rainsfather

I am almost positive that my problem is my 3.31s.








......and that I forgot to turn off the speed limiter. Was set at 95. Once the track opens back up I'm going to run my JLP e85 tune which has the limiter disabled.