Yes, there is a lot more pull in the upper end. Here is a pic of Scott working on the 8-Ball...



Yep, me too....

I think the adustables will go from 1:90 to 1:60 so you can run 1:90 then when you get a cam drop them to 1:60? I'm not sure on that exact point. I'll have to ask. I'm sure one of the gear heads will throw in here.

Well, these are the first 3rd gens out (in fact I have the first set) so it will remain to be seen how these fair but they are made by the best roller rocker manufacture on the planet so I am only expecting good things.

I will probably move to a cam when the 1.60'* are ready and will do a pcm then. By then i think I will be done with the car engine wise for a while. Still want to do the exaust and headers also.

It has been to wet here to really tromp on it and be able to watch this. I plan on autotapping it hopefully tommorrow if it dries up. I'm expecting the boost gauge to drop do to the better breathing of the engine, so probably back to 7 or 8 from 10-11 it was at.

The first set, you don't say. That'* neat that Scott did them personaly, he has a week spot for bonnevilles. Hope for some good weather tomarrow, I wanna here the report after another day of driving.

Quick story- I got into a little highway race the other day against a 95-98 STS and we were rolling along at 65 or so and we go, start pulling away form him untill 85- had almost a car length on him and than he creeped up and past me at 110. Got love the northstars highend, now that I've had that, I don't want this to happen again against any fellow Norhtstar'ers I might encounter in the future. Thinking some 1.9 Rockers and Headers should take care of my problem. Side note, caddy STS rated 14.7 in quarter mile, me at the track with bad traction, same 14.7.

Gotta get my income tax refund soon, then hello mods.

You definately want the oil restricted pushrods with the stock lifters because it helps the lifter stay pumped up, without them you have more of a chance of getting valve float. The lightweight are just like the stock ones (the hole in the middle the same size to allow the same amount of oil through) except they are lighter and stronger, so they don't do much to help valve float.

You definately want to do the OR pushrods and stronger valve springs when you do rockers, because as you have been reading, now that the 1.9 rockers have been out for a few years, problems with people bending lifters and breaking valvesprings are starting to show up because the stock valvetrain just isn't strong enough to handle the 1.9 rockers. So if you do rockers you want to go with the OR pushrods and 85lb. valvesprings (which I think they changed to 90lbs recently) to strengthen up your valvetrain and to allow you to rev it to 6200rpm or so. We left the valvetrain stock in the SSEi because it has the stock PCM and will probably forever, so it will never rev over 5800rpms (where all of the problems occur), and almost never revs over 5500rpms, so the stock valvetrain is enough because it doesn't have to handle the stresses of the high revs.

I don't know what it was reading already, I am betting around 11-12psi, but it should drop 1-2psi with rockers (because the engine can breathe easier). When we put rockers in the SSEi it dropped to 10.7psi boost from ~12psi. So his boost gauge isn't going to be reading any higher thats for sure.

I don't know what your problem is...I completely blew away a Deville DTS on the highway a few months ago...oh yeah, I was driving the GTP...I forgot. (He was pissed too!) Seriously though, those Northstars do have some good topend, but I definately think rockers and headers (along with a smaller pulley) should definately fix the top-end problem.

Shawn

When they say adjustable, I though they meant for clearance not ratio. :?

I'm pretty sure silverbullet is correct on that one. They aren't adjustable for ratio, and I don't know that there is even any way to do that. (at least not and make it last 100,000 miles) I am pretty sure they are adjustable for clearance and geometry purposes.

Shawn

I don't get it either, but what is there clearance problems with? adding different covers on? or what?

Adjustable rockers can compensate for valvetrain and cam wear by the ability to increase or decrease the valve lash. Usually by loosening the retaining bolt and screwing it up or down then locking it in place with a locknut.
The stock Bonne rockers are not adjustable.......just like the old Oldsmobile rockers. The only way to adjust is to change pushrod length.....or change worn parts.
Non adjustablility = lower maintenance requirements.
If anyone has run with solid lifters, you know what I mean.

Our Third Gen rocker arm kits arrived today and all pre-orders have now been shipped. Everyone who pre-ordered already has a tracking number is his email too.

No special tools are required for installation with the exception of a 1/4" male hex driver and a torque wrench. Simply torque the rocker arm bolts to 25 foot-pounds and the valve cover bolts to 89 inch-pounds.

Enjoy!

Scott

there red too!

red=more hp

Yep, if they were black it would be twice as much....