I haven't seen any dynos that show exhaust/intake is worth a damn on ecoboost. Even a tow tune will give that truck a huge boost. Livernois has them in the low 12s with a bunch of bolt ons and a tune. They are no joke. As Twinscrewed said lower tire pressure and learn to pedal the throttle. 4wd launch will net you better times then 2wd

 

Ken it would be awesome if you could post your time slip. Just playing with the video it appears your 60' is nearly 3 secs. That can be shaved down to 2 -2.2 secs on street tires. Also from the 60' mark to the 1/8 mile you look to be around 6 secs. Guess what? I referred back to my old slips and from 60' to the 1/8 mile was 6 secs. Those were low 13 high 12 runs for me. Your trucks making plenty of power. The issue is the launch. Also make sure she's cooled off before a run. Ideally you won't the t-stat opening right when your staging. This will also help with heat soak. If you have efans they should be running on high. Also no offense but dump the passenger or passengers. Every 100lbs is a tenth.

 

60' average 1.8 to 1.9 ...

truck takes off great.. but then not much more after that.. I beat just about everyone 60'.. its always cooled off (as much as u can) e-fans both on. and don't uslually has a passenger (daughter wanted to go down with me once)

 

Very interesting. If you get a chance post up your time slip or the rest of the data from it. Would be really interesting to see where she's faing off at.

 

Belt slip maybe? Time slip would be great to compare the first and last 1/8th mile. I have a troyer, vmp and jdm tune. Vmp is the slowest (butt dyno) but best daily driveability by far. Not saying the tune is the problem just from my observations.

Do you have a boost gauge too?

Also I assume you run 3" header back y pipe one flowmaster ? I assume flowmaster race mufflers are not chambered?

 

I think staying in 4x4 is killing your top end

 

Or cheaper then a regear is just putting shorter tires on it for the track.

Did you do any weight reduction before the track? Like taking out a tool box etc?

 

best time slip of that day!

 

yes 3" y pipe to single in dual 2 1/2 out , and its a single chamber.

yes a boost gage.. boost only falls off at shift and returns .. shows just under 10psi

 

don't stay in 4x4.. just to launch..
before first shift its back out..

tried to stay in 4x4 full run.. way slower and front tires were pulling me all over the track.

 

Sounds normal. Just 4x4 weight hurting and possibly exhaust. I ran a si do chambered muffler for a while, now however, I run true duals and I definitely notice the truck has more power above 50mph.

4.11s will help out a lot too.

 

Looks like she needs more timing. Justin can lean out the WOT fuel between idle and 2000 rpm to 11.8-12.0 and give the knock sensors the ability to add timing up to 5 degrees throughout as long as they're happy.

 

Was this run on meth? If so are you tuned for meth?

 

meth was on... tuned for meth..

 

What's the meth mixture? I wonder if you have to much water not enough meth hurting power. I would try dyno runs on and off meth (obviously different tunes with each)

Also why are you running off the MAF instead of boost? Is your controller progressive injection? I had a devils own kit on a cobalt ss and it would start injecting at 7psi and go full squirt at 12psi until max 17psi. Reason I ask is if its dumping 100% at lower rpms it will cause the engine to bog.