Nimitz87

iTrader: (17)

he said an 01 z06 made 356rwhp....

cam timing seems to be the consensus, I had no clue it would take that much power away.

Chad

ExViTermini

Well, I know the dots were lined up cuz I have it back apart, but degreeing was one of the things I was wanting to look at.

The clutch should have given off a smell no? I can hear what sounds like one of the plate springs moving back and forth when you rotate the motor by hand, you hear it jingle at the right spots in rotation...

6.0 silverado

iTrader: (2)

I know the pressure is good, but is the fuel pump flowing enough fuel? Clogged filter? I'm just throwing ideas out there.

Frost

iTrader: (45)

Clutch slip shows up pretty clearly on a graph, not to mention that it stinks!

Here is the graph:

craze4speed

iTrader: (12)

was the stock timing set used

ExViTermini

Stock crank gear and cam gear, LS2 chain.

ds98formula

iTrader: (3)

subscribed

novaflash2002

iTrader: (51)

did anyone happen to do a vacuum test on all the valves on the heads before they were put on. 90% of the after market heads that i see need a little vavle job done so they seal proporly.

mark21742

how about lifter preload? do you happen to have the valves a hair too tight (pushrods too long)

ExViTermini

Pushrods are the 7.5's that came with the kit, still the original lifters. They were about 1-1.25 turns from zero lash to ready to tq. Like I said my next step is put the rockers and rods back on and do a comp. test, that should tell me whether that is an issue I hope.

mark21742

I (think) you should have 7.4 rods, with 3/4- max 1 turn to tq......i hope I'm right because that would be an easy fix.
you are using roller tip rockers right? I was just looking at TF heads this morning and said they were required

5_02ls1

iTrader: (20)

just because the cam is dot to dot doesnt nessisarily mean its right...theorioticaly it should be but,id have someone set it up with a degree wheel......

craze4speed

iTrader: (12)

^yeah he's right, i have only installed one cam that has not had to be adjusted when i degreed it, i couldnt start to count how many cams i've installed, every one of them with the exception of the one has been anywhere from 1* to 4* off, and 4* can make a big difference on power, i wouldnt put it back together without degreeing it.

ExViTermini

The rockers are the Harland Sharp roller's that came in the TF kit.

I do intend on degreeing it to see where it is, but I have to ask, so many people just stick em in and end up with good numbers...Also I would expect the curve to shift one direction or the other, not just go up or down, am I wrong?

Thanks very much for your input guys

98RedZone

iTrader: (1)

Any chance your throttle cable isn't right and you are not going WOT?

ExViTermini

I wish it was that simple, but unforunately its not

Frost

iTrader: (45)

That was verified on the dyno.

Nitroused383

iTrader: (10)

I would look into your pushrod length, probably holding the valves open if they are too long. Shoot for .020-.080" preload, also make your cam is degreed to the proper intake centerline. Double check all your plugs and wires, it is not hard to crack the porcelin on a plug. Ohm out your wires, seems like you have a dead hole.

ExViTermini

The valvetrain and cam degree I can agree on. Those are the next things to look at. The car belongs to a friend of mine that has been out of town a lot recently and so it's hard to get together to work on it.

The wire and plug issues were verified on the dyno as well as there were no misfires showing up in the logs.

S10xGN

iTrader: (11)

Not to crash your party, but your name is soooo familiar... Didn't you used to host a bunch of 1150 RWHP Skyline GTR vids? I saved a few of those, they are the nuts! Especially the one with the car in 4wd almost jumping off the rollers.