I swooped by the dyno today made 367rwHp/390rwTq. Gained 44Hp @ 5,200rpm and about 40rwTq across the board after adding headers, UD pulley, and dialing in AFR/Spark with a personal tune... I was turning clod hopper 295/45/22's during both runs...

Top run: AFE Intake, 1 3/4'' AR Headers, 3.5'' Gibson Exhaust, UD Pulley, personal tune

Bottom run: (April 2010) Varram Intake, 3.5'' Gibson Exhaust, stock tune

 

Lookin good!

 

those are some awesome numbers from very little mods. Im about to bite the bullet on ordering a 2011 ext cab 2wd, 6.2/6l80e combo with 3.73 gears. Is yours a 2wd, and how are the 3.42's with the 6 speed. Im getting tired of modding the hell out of my 5.3 ls1, and losing mpg and gain very little.

 

Yes it's 2wd... 3.42's go well with the A6,1st gear is so steep it's like having 4.10's on a 4spd. My tires are 32.6'' tall and i'm done with 1st gear by 40mph shifting @ 6,100rpm. Fuel economy sucks in town but I make some of that back on the hwy (12city/20hwy@70mph), With the latest mods I can break 1st gear loose anywhere in the powerband, even if I walk her our slow to 28-30mph b4 100% throttle in 1st...I'm good on gear until I can hook what I have...lol!

These tires are usless when the temps are cool/good for making power...

 

VERY nice #'s, Mark.

Patrick G will be dyno tuning mine with wide band in two weeks, hoping for results as good as yours. Though - I don't have BH (before headers) numbers to compare to.

What kind of dyno did you do your pulls on?
EDIT: never mind - I see it was on a DynoJet dyno. I believe that Pat G. uses a Mustang dyno, so a direct comparison to your #'s won't be possible.

 

Thanks...

Yea, I see DynoJet's read higher than a Mustang dyno...Shoot i'm just a DIY tuner, Pat G may be able to unlock some real ponies..please share when you are done...

 

Good numbers man! Where u been hiding? Havent noticed u on here in a while...

 

you've been hiding man! i need to go back and get my truck dyno tuned since i have the 6.2/6spd swap finished. im running 4:10s though...i may go back to a 3:73 one day...we'll see. i have a bigger cam than you but im running 3" exhaust

 

wut up man thanks...been workin a bunch waiting to get this thing back to the track to post some good times..

I went to No Prob Wed Dec 8th for test n' Tune, those ****'s were closed due to cold weather. In Louisiana, really? I shoulda called...but i'm a dumb ***..

 

wut up, yea long time no post...Look you see how much Tq my little 1.75'' pipes are putting down? I only need 10 more to break 400rwTq on the dyno, do you have some 17's or 18's I can borrow...lol? I wish the dyno would have read below 4k where my gains feel strongest...burnouts on demand...woot woot

Hey what's a good street tire that still does ok at the track? My 22's gotta go need more grip and less weight...dis bitch will see 12.999 on stock CAM, it's going to take some new shoes or maybe some slicks

U got 4:10's on a 6L80, Damn Hoss? Does 1st gear feel useless at times for daily driver?