SSP_6.2

My 09 Escalade, recently spun bearing due to oil pump failure. I've been talking to a few companies about a vvt cam for it while I have the engine disassembled. It's 1 7/8 headers, 4in exhaust, cai, ported ls3 tb, and circle d 2800 converter. I've been looking for something to make decent power, sound near stock(stealth), and still have ***** to pull my car hauler.

TSP recommended either vvt1 or 2
Comp has recommended their 401 cam, but don't have phaser tables.
Mast told me their L92 ho cam, but I've been reading that their customer service isn't up to par and hard to get assistance when needed.

Many others have told me do away with vvt all together.

It's currently street tuned, but will be brought to patg for dyno tune once put back together.

casias

iTrader: (1)

I have an LY6, which is very similar to the L92 except for iron block and 6.0 size.

I used vvt for a couple of years, thinking the low-end torque was what I wanted to retain. I also pondered the vvt options, but my tuner kept telling me to get away from it.

As the cam size goes up, the phasing has to be limited, making for less actual vvt action. Then there is the issue of phasing and tuning.

Finally, a couple of months ago, I put in a pretty mild LS9 cam. I found increase in torque and power across the range, but the 4000-and-up power is a freight train.

In your case, you have a heavy vehicle with a higher stall converter may be asking for transmission overheating. Not sure how long you have run it this way.

But, I wouldn't worry about ditching vvt. Find a tuner to discuss your plans, then choose a cam, and ditch the vvt. That's my suggestion.

Jimbo1367

SSP 6.2,

You mention you will have Pat G. tune this, so why not have him spec you a custom VVT cam. He does VVT cams too.

Jason 98 TA

iTrader: (4)

The great thing about the TSP camshafts is the phaser tables are built on the engine dyno & sent to you for your tuner. This way you know you have the best phaser values for your camshaft. With the TSP camshafts we did a engine dyno step test every 200 rpms and varied the cam advance to determine the best phaser curve for max power at every rpm. It takes a $80,000 engine dyno capable of step testing to get this data properly, but the results are hard to ignore. For example the VVT3 & VVT4 make over 100hp flywheel gains!!

DavidBoren

I think those tested and tuned phaser tables are hard to argue with. And I have yet to hear anything bad about TSP customer service. And just think how much your tuner will appreciate being supplied with the vvt tables for that cam.

SSP_6.2

I ended up going with the comp 401 vvt cam, mainly for its stealth sound and the ridiculous price I got it for after some promo comp had going on . PatG will be tuning it and said he tunes the tables himself. My new question is can I bump compression by going to a thinner head gasket while i have the heads off?

casias

iTrader: (1)

You should probably measure piston to valve clearance, especially if you go with a thinner head gasket. It may be a bit tricky measuring the PTV clearance on a vvt cam, because you would have to phase it to the maximum of the limiter, and measure that.

Hope someone else chimes in, I would like to know how to do it also.

hiltsy855

iTrader: (35)

M6 or auto trans? With an M6 a 12 deg. overlap camshaft will require a good tune to eliminate bucking and have good driveability. With 20 deg. overlap you'll need a Superman tune.

hiltsy855

iTrader: (35)

Sorry, I posted in the wrong thread....

Jimbo1367

TSP has good VVT cams too. There are several people running them. Try a SEARCH. As Jason of TSP stated, they have the VVT tables too. That's a huge bonus.

bortous

What's the size of this engine again?

G Atsma

Good question. His first post in this thread.

bortous

It lists the bore size but am unsure if it's standard stroke or not.

grnsierra01

I somehow made that post in the wrong thread. It was supposed to be in my thread about my 416 build.