randeez

2012 yukon denali
AWD/6l80/3.42s
275/55 stock 20s
TSP VVT 218/228 .600/.600 113LSA
1219x springs, hardened pushrods, ls3 intake valves
SE 1-7/8s long tubes/ypipe stock catback
airrad tube/panel filter in stock air box
3k circle d converter
Black Bear Tune
E85

had a plug wire blow later on the same day dyno was done, may have been on its way out

Vortec350ss

iTrader: (20)

Strong torque down low, but to be honest power falls off a lot earlier than I think it should. I would have expected a peak HP number closer to 6k. Not that your cam is all that large... but I'd be curious if you were getting all that you could out of the VVT.

3wide

Agreed, get someone else to do your tuning. You should not have that dip at 3000-3500K and that Cam pulls all the way to 6500rpm. your roll off at 5500 is either valve train, tune or both.

turboal1

I run a similar VVT cam, looks like yours needs
to be moved some. it can only be done with a
dyno tune. sorry to tell you. my tuner moved
the cam around till he got the best for what i
wanted. He changes the timing and fuel curve
as he moves the cam. mine shifts at 7000rpm
pulls hard all the way. power starts to drop of
a little at 6600rpm.

randeez

A little explanation...lol.
The runs were a base dyno to see if they can improve tune, tuner was on his way out to vacation and will take a look at the logs when he gets back. He also pulled the tune file from the truck to review.
The dip down low is there because without him controlling to tune, it wanted to downshift if he got into it any sooner than 3400ish rpm (yes in manual mode)
The rpm drop off up top is exactly what I don't like, wasn't sure if it's stock box restricted, the plug wires I had on were probably original. Replaced them after one blew out. I noticed smaller cams in 6.2s pulling way into 6500rpm land.

And pulls were made in 4th

turboal1

Look at my Dyno tune it's on this list.
very similar VVT cam

randeez

Yep, I grabbed a couple screen shots of the timing tables and have been talking with a few guys...looks like it need a lot more timing over 5k
Hadn't even looked at them before

FFDP

iTrader: (2)

I'd blame the tune if it was an email tune.

Though it's hard to say without a log/tune file. Just adding timing won't make magic power if it can't use the timing because of spark knock.

randeez

got efilive i'll gladly send lol

Last Call

iTrader: (4)

I would expect more power pulling to the top as well. But it's hard to get it right without a dyno and through email.

Do you mind sharing the tune and logs - j_port21@yahoo.com