New 3rd Gen Rockers going in
#21
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Location: Westerville, Ohio 2000 Black SSEi
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Originally Posted by TaylorD
Very cool and WAY GELOUS!!! So sounded like you said Scott personally installed these? The way you described the gains is what I'm looking for, I want some more on the highend. The lowend can't hook up as it is. ![Wink](https://www.gmforum.com/gm/images/smilies/icon_wink.gif)
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Definitly looking forward to your dyno day. You lucky dog.
Question, what is the advantage of having adjustable rockers? I understand with a Cam such as 1x or VS that you want stock lift of 1.6 right?, so what'* to adjust? Maybe get 1.65 or something?
So you said Oil restricted with stock lifters, and lightweight ones with better lifters, I take it the lightweight setup is the more recomend path if you want to do it all? I've been reading some rocker problems on club GP with people who only but rockers in and nothing else, bending lifters and stuff.
And finally, I'm gelous!!!! One more thing, when you getting a custom DHP, probably with the cam ehh? Just curious, why did you get these rockers when you have plans on getting a cam soon?
Hey, what'* the boost gauge reading now? Pegged at +10psi I'm betting.
#22
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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.
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.
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Gotta get my income tax refund soon, then hello mods.
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#23
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So you said Oil restricted with stock lifters, and lightweight ones with better lifters, I take it the lightweight setup is the more recomend path if you want to do it all? I've been reading some rocker problems on club GP with people who only but rockers in and nothing else, bending lifters and stuff.
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.
Hey, what'* the boost gauge reading now? Pegged at +10psi I'm betting.
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.
Shawn
#24
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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.
#25
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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
Shawn
#27
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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.
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.
#28
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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
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