Ah. Ha. :o
All testing was done with a 3.0" SC pulley.
When they removed the 1.9 rockers and tried it with the stock rockers, I'll bet that it got some Knock retard and that might explain the loss of torque and 12 hp gain claim.

The non-rollers are just modified stock rockers. So you're not losing any quality because you're putting in exactly what came out...I don't see how that is cutting corners. Honestly, how many times have you heard of someone having a stock rocker arm fail?

I thought that too, but it doesn't make sense. There would be a larger torque and HP gain if there was KR with the stock setup and not with the rocker setup. Actually, what I was thinking was that there was KR with BOTH the stock & 1.9 rocker setups explaining why there wasn't much difference, and then there was no KR with the cam. In fact, I'm pretty sure this was the case because I know this car didn't have an intercooler at the time so I can' t see it getting no KR with a 3.0 pulley and a stock cam with 1.9 rockers or not. With the cam I can believe it, but not with stock cam. I am also pretty sure that he was running a 3.25" pulley normally at this time anyways. So my guess is that it was getting KR for both rocker pulls and not the cam pull. Especially since they said he was running 20 degrees timing for all those pulls, which is 5 degrees added.

Shawn

Well, I bit my Bullet and ordered the 1.9 INTENSE units.

I couldn't resist the sale price.

I decided to take your advice Shawn and didn't order the springs, pushrods or retainers. That saved me alot.

INTENSE doesn't require a core charge and that saved me more shipping $$.

My winter projects are now cast in stone.
Rockers and Lsd.

I envy you!! I'm jealous! I was so tempted to get those. 13'* in the future??

That'* the hope.

Enough of being penny wise and pound foolish.

I just bit the 50 caliber Bullet and ordered the LS6 springs, OR rods, titanium retainers, viton seals and Comp locks.
What the hey

No sense going half way.

....I decided not to go with the 105 springs because I am not going to do the cam...and if I do a few years from now, it will be easy to swap springs.

Thats gonna be one bulletproof valvetrain. (pun intended) Should spin up pretty high with no problems at all. Good luck with the install, and I hope you enjoy the new found power it will add. Are we gonna see a smaller pulley after the rockers?

Shawn

2000 Silver Bullet,

it looks like we are on the same path this season . . . . i will have to wait until summer for the LSD though.

now with all this talk i am going to research that 1X cam mod. why did you choose not to go that route?

The install!!!

that is pricey!

i will go with the route we are already on. i guess i'm not at the Rogue mod level madness yet.

I'm running the 3.3" now and will probably go to the 3.2". I'll wait and see how much the rockers lower my max boost. I'll try to limit it to 10-11.psi.

Xac - I've done a cam install on my Firebird. It'* a lot more work and I'm not as serious with "my wifes" car, besides I'm worried about putting too much power into the tranny.
Baby steps a little at a time.