Baseline w/ a CAI and Magnaflow muffler produced 324/345. ET 9.72 @ 76.
After Mast Motorsports VVT cam and dynatech LT's it managed 392/366. ET 9.08@79. I was pretty satisfied. I need a converter bad though ( some drivability issues).

 

so you picked up 70hp and dropped .7 seconds, which back eachother up as good numbers! Awesome! a good converter will drop even more time.

 

IMO taking torque management out was worth a couple tenths, hoping to reach 8.8's w/ a converter, maby 2600 stall.

 

did rpm do the work. I was thinking about a mast cam for my l76.

 

what are the specs on the cam? you have a heavy truck, i wouldnt get anything under 3200.... nice gains by the way...

 

He has an A6 with a 4.x first gear. They leave hard and shift out fast. They don't need much stall IMO.

 

I'd also like to know the cam specs. I have a Sierra Denali that I would like to put a VVT cam in. What did you need to install the cam? Springs? Pushrods? Or did you use the stock stuff? Also does Mast sell the cams by themselves? I had heard that they didn't. Thanks for the help, I'm wanting to put some performance in my SD but there are not a lot of people out there that have done anything to them.

 

I know those headers must have made a big difference for you!

 

Those are some good numbers! That L92 sure woke up with the cam and LTs

 

How do you like the Dynatech Headers? I had them on an 02 Corvette and they were great. Never had a problem with them. I also have an 08 Sierra Denali with the 6.2L and have been looking at Dynatech and now American Racing Headers makes a set for this application. The ARH have 1 7/8" primaries and feed into a nice merge collector and then a 3 1/2" "Y" to match the OE exhaust. I am leaning towards the ARH for my application. If anyone has these I would like to have comments.